Revert emutls patch.

[thirdparty/gcc.git] / gcc / ChangeLog

2006-10-09  Richard Henderson  <rth@redhat.com>

	Revert emutls patch.

2006-10-09  Richard Guenther  <rguenther@suse.de>

	PR middle-end/29254
	* cgraphunit.c (verify_cgraph_node): Bail out on earlier
	errors.

2006-10-09  Steve Ellcey  <sje@cup.hp.com>

	PR target/27880
	* unwind-c.c (PERSONALITY_FUNCTION): Ifdef use of _Unwind_GetIPInfo.
	* configure.ac (HAVE_GETIPINFO): Check for _Unwind_GetIPInfo.
	* configure: Regenerate.
	* config.in: Regenerate.

2006-10-09  Aldy Hernandez  <aldyh@redhat.com>

        * tree-mudflap.c (mf_xform_derefs_1): Add parentheses around TREE_TYPE.

2006-10-08  Richard Sandiford  <richard@codesourcery.com>

	* config/mips/mips.c (mips_legitimize_tls_address): Implement
	all TLS models in the same way as local exec if !TARGET_ABICALLS.
	Remove stray newline.

2006-10-08  Richard Sandiford  <richard@codesourcery.com>

	* config/mips/mips.c (mips_classify_symbol): Do not return
	SYMBOL_SMALL_DATA if SYMBOL_REF_WEAK.
	(mips_in_small_data_p): Tweak comments.

2006-10-08  Richard Sandiford  <richard@codesourcery.com>

	* config/mips/elf.h (HANDLE_PRAGMA_PUSH_POP): Define.

2006-10-07  Kazu Hirata  <kazu@codesourcery.com>

	* gimplify.c, sched-int.h: Fix comment typos.

	* sched-int.h: Fix comment typos.

2006-10-06  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

	* sched-int.h (IS_SPECULATION_CHECK_P, IS_SPECULATION_SIMPLE_CHECK_P):
	New macros.
	* sched-ebb.c (begin_schedule_ready): Use them.
	* haifa-sched.c (schedule_insn, move_insn, try_ready,
	add_to_speculative_block, create_check_block_twin, speculate_insn,
	fix_jump_move, move_block_after_check): Ditto.
	* sched-rgn.c (new_ready): Ditto.

2006-10-06  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

	PR rtl-optimization/29128
	* sched-int.h (IS_SPECULATION_BRANCHY_CHECK_P): New macro.
	* sched-ebb.c (advance_target_bb): Use it to fix condition to
	allow interblock movement of speculation checks.

2006-10-06  Zdenek Dvorak <dvorakz@suse.cz>

	PR middle-end/29256
	* tree-ssa-loop-ivopts.c (determine_base_object): Handle pointers
	casted to integer type.
	(get_address_cost): Decrease cost of [symbol + index] addressing modes
	if they are significantly more expensive than [reg + index] ones.

2006-10-06  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/29330
	* tree-data-ref.c (free_data_ref): Use DR_FREE_ACCESS_FNS macro.
	(initialize_data_dependence_relation): Clear DDR_LOOP_NEST pointer
	on newly allocated ddrs.
	(find_loop_nest_1, find_loop_nest): Change LOOP_NEST to a pointer
	to VEC (loop_p, heap) pointer.
	(compute_data_dependences_for_loop): Adjust caller.
	(free_dependence_relations): Free DDR_LOOP_NEST.

	* tree-loop-linear.c (linear_transform_loops): Don't forget to
	free DEPENDENCE_RELATIONS and DATAREFS.

	PR target/28924
	* builtins.c (expand_builtin_sync_operation,
	expand_builtin_compare_and_swap, expand_builtin_lock_test_and_set):
	Use convert_to_mode to handle promoted arguments.

2006-10-06  J"orn Rennecke  <joern.rennecke@st.com>

	* print-tree.c (print_node_brief, print_node): Print sign of Inf.

2006-10-06  J"orn Rennecke  <joern.rennecke@st.com>

	* config/sh/sh.h (LIBGCC2_DOUBLE_TYPE_SIZE): Define.

2006-10-05  Uros Bizjak  <uros@kss-loka.si>

	* config/i386/sync.md ("sync_add<mode>", "sync_sub<mode>",
	"sync_ior<mode>", "sync_and<mode>", "sync_xor<mode>"):
	Use <modeconstraint> instead of "r" as operand 1 constraint.

2006-10-06  Olivier Hainque  <hainque@adacore.com>
	
	* gimplify.c (gimplify_type_sizes) [POINTER_TYPE, REFERENCE_TYPE]:
	Don't recurse on the pointed-to type.
	* c-decl.c (grokdeclarator) [cdk_pointer]: If we are in a NORMAL or
	DECL context, attach an artificial TYPE_DECL to anonymous pointed-to
	types with components of variable size.

2006-10-06  Danny Smith  <dannysmith@users.sourceforge.net>

	config/i386/mingw32.h (GOMP_SELF_SPECS): Add -mthreads for openmp.

2006-10-06  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/29290
	* tree-loop-linear.c (linear_transform_loops): Bail if loop_nest has
	multiple exits.

	PR target/29198
	* config/i386/i386.c (legitimize_pic_address): Reject TLS symbols.
	* config/i386/predicates.md (local_symbolic_operand): Likewise.

	PR c/29091
	* varasm.c (output_constant): If TREE_VECTOR_CST_ELTS chain is shorter than
	the number of vector elements fill the rest with zeros.

2006-10-05  Richard Sandiford  <richard@codesourcery.com>

	* config/mips/mips.c (mips_pass_by_reference): Do not return false
	for EABI if type is NULL.  Use a size check based on GET_MODE_SIZE
	instead.

2006-10-05  Bernd Schmidt  <bernd.schmidt@analog.com>

	* config/bfin/bfin.md (subsi3): Lose expander, change previously
	unnamed pattern into subsi3.  Use correct constraints/predicates.
	* config/bfin/bfin.h (CONST_OK_FOR_K): Handle "KN7".
	* config/bfin/predicates.md (reg_or_neg7bit_operand_p): New.

2006-10-05  Ira Rosen  <irar@il.ibm.com>

	* doc/loop.texi: Add data references analysis description.

2006-10-04  Brooks Moses  <bmoses@stanford.edu>

	* doc/gcov.texi: Add formatting to "Invoking gcov" section head.

2006-10-04  Richard Henderson  <rth@redhat.com>
	    Jakub Jelinek  <jakub@redhat.com>

	* Makefile.in (libgcc.mk, LIBGCC_DEPS): Add emutls.c.
        * builtin-types.def (BT_WORD): Make unsigned.
        (BT_FN_VOID_PTR_WORD_WORD_PTR): New.
        * builtins.def (BUILT_IN_EMUTLS_GET_ADDRESS): New.
        (BUILT_IN_EMUTLS_REGISTER_COMMON): New.
        * c-decl.c (grokdeclarator): Don't error if !have_tls.
        * c-parser.c (c_parser_omp_threadprivate): Likewise.
	* cgraph.c (decide_is_variable_needed): Look at force_output.
	Recurse for emulated tls.
	* cgraphunit.c (cgraph_varpool_remove_unreferenced_decls): Remove
	checks redundant with decide_is_variable_needed.
	(cgraph_build_static_cdtor): Do cgraph_varpool_assemble_pending_decls.
        * dwarf2out.c (loc_descriptor_from_tree_1): Don't do anything for
        emulated tls.
        * expr.c (emutls_var_address): New.
	(expand_expr_real_1): Expand emulated tls.
	(expand_expr_addr_expr_1): Likewise.
        * libgcc-std.ver: Add __emutls_get_address, __emutls_register_common.
        * output.h (emutls_finish): Declare.
        * toplev.c (compile_file): Call it.
	* tree-ssa-address.c (gen_addr_rtx): Check for const-ness of the
	address before wrapping in CONST.
        * varasm.c (emutls_htab, emutls_object_type): New.
        (EMUTLS_VAR_PREFIX, EMUTLS_TMPL_PREFIX): New.
	(get_emutls_object_name, get_emutls_object_type): New.
	(get_emutls_init_templ_addr, emutls_decl): New.
	(emutls_common_1, emutls_finish): New.
        (assemble_variable): When emulating tls, swap decls; generate 
	constructor for the emutls objects.
	(do_assemble_alias): When emulating tls, swap decl and target name.
        (default_encode_section_info): Don't add SYMBOL_FLAG_TLS_SHIFT
        for emulated tls.
	* emutls.c: New file.
        * config/sparc/sol2.h (ASM_DECLARE_OBJECT_NAME): Only emit
        tls_object for real tls.

2006-10-04  Zack Weinberg  <zackw@panix.com>

	Fix bug in constraint-check generator, reported by Rask Ingemann
	Lambertsen:
	* genpreds.c (add_constraint): Don't remove anything from the
	expression here.
	(write_tm_constrs_h): Detect whether "op" argument is used, and
	mark it ARG_UNUSED if it isn't.
	(write_insn_const_int_ok_for_constraint): Skip the part of the
	expression that would test whether "op" (which is not available
	here) is a CONST_INT.

2006-10-04  Ryan Mansfield  <rmansfield@qnx.com>

	PR c++/28448
	* doc/invoke.texi (fdiagnostics-show-option): Fix typos.

2006-10-03  Geoffrey Keating  <geoffk@apple.com>

	* config/i386/darwin-libgcc.10.5.ver: Update to symbol list for
	current Leopard versions.
	* config/rs6000/darwin-libgcc.10.5.ver: Likewise.

2006-10-03  Kazu Hirata  <kazu@codesourcery.com>

	* doc/install.texi: Fix typos.

2006-10-03  Eric Botcazou  <ebotcazou@libertysurf.fr>

	* builtins.c (expand_builtin_return_addr): Deal with FRAME_ADDR_RTX.
	* doc/tm.texi (Basic Stack Layout): Document FRAME_ADDR_RTX.
	* config/sparc/sparc.h (FRAME_ADDR_RTX): Define.

2006-10-02  Jack Howarth  <howarth@bromo.med.uc.edu>

	* unwind-dw2-fde-darwin.c (getsectdatafromheader_64): Fix first
	arg to be struct mach_header_64* instead.

2006-10-02  Jakub Jelinek  <jakub@redhat.com>

	PR c/29154
	* gimplify.c (gimplify_self_mod_expr): Run inner expression's post
	side effects after the outer expression's post side effects.

2006-10-01  Sandra Loosemore  <sandra@codesourcery.com>

	* tree.h (DECL_FIELD_OFFSET, DECL_FIELD_BIT_OFFSET):  Fix
	comments to reflect actual behavior and relationship between
	DECL_FIELD_OFFSET, DECL_FIELD_BIT_OFFSET, and DECL_OFFSET_ALIGN.

	* doc/c-tree.texi (Working with declarations): Fix documentation
	of FIELD_DECL likewise.

2006-10-01  Ryan Mansfield  <rmansfield@qnx.com>

	PR c/20533
	* doc/extend.texi: Add used variable attribute description.

2006-09-30  Joseph S. Myers  <joseph@codesourcery.com>

	PR c/24010
	* c.opt (Woverride-init): New.
	* c-opts.c (c_common_post_options): Default warn_override_init to
	extra_warnings.
	* c-typeck.c (add_pending_init, output_init_element): Warn for
	overriding initializers without side effects.
	* doc/invoke.texi (-Woverride-init): Document.
	(-Wextra): Update.

2006-09-30  Eric Botcazou  <ebotcazou@libertysurf.fr>

	PR rtl-optimization/28096
	* ifcvt.c (check_cond_move_block): Return FALSE if the source of an
	assignment has already been used as a destination earlier in the block.

2006-09-29  Eric Botcazou  <ebotcazou@adacore.com>

	* builtins.c (expand_builtin_setjmp): Delete.
	(expand_builtin) <BUILT_IN_SETJMP>: Mark as unreachable.
	<BUILT_IN_SETJMP_SETUP>: New case.
	<BUILT_IN_SETJMP_DISPATCHER>: Likewise.
	<BUILT_IN_SETJMP_RECEIVER>: Likewise.
	* builtins.def (BUILT_IN_SETJMP_SETUP): New built-in stub.
	(BUILT_IN_SETJMP_DISPATCHER): Likewise.
	(BUILT_IN_SETJMP_RECEIVER): Likewise.
	* gimple-low.c (struct lower_data): New field calls_builtin_setjmp.
	(lower_function_body): Initialize it to false.  If it is set to true
	at the end of the processing, emit the setjmp dispatcher.
	(lower_stmt) <CALL_EXPR>: Invoke lower_builtin_setjmp if the callee
	is __builtin_setjmp and set calls_builtin_setjmp to true as well.
	<MODIFY_EXPR>: Fall through to above case if there is a CALL_EXPR
	on the rhs of the assignment.
	(lower_builtin_setjmp): New function.
	* tree.c (build_common_builtin_nodes): Build BUILT_IN_SETJMP_SETUP,
	BUILT_IN_SETJMP_DISPATCHER and BUILT_IN_SETJMP_RECEIVER nodes.
	* tree-cfg.c (make_exit_edges) <CALL_EXPR>: Use specific predicate
	to detect calls that can go to non-local labels.  Use specific
	helper to create the abnormal edges associated with them.
	<MODIFY_EXPR>: Likewise.
	(make_abnormal_goto_edges): New function extracted from...
	(make_goto_expr_edges): ...here.  Call it for computed gotos.
	(simple_goto_p): Minor tweak.
	(tree_can_make_abnormal_goto): New predicate.
	(tree_redirect_edge_and_branch): Return zero on all abnormal edges.
	(tree_purge_dead_abnormal_call_edges): New function.
	* tree-flow.h (tree_can_make_abnormal_goto): Declare.
	(tree_purge_dead_abnormal_call_edges): Likewise.
	(make_abnormal_goto_edges): Likewise.
	* tree-inline.c (expand_call_inline): Simplify statement frobbing.
	Purge all dead abnormal edges if the call was in the last statement.
	* tree-optimize.c (has_abnormal_outgoing_edge_p): New predicate.
	(execute_fixup_cfg): If there are non-local labels in the function,
	scan the basic blocks and split them at calls that can go to non-local
	labels or add missing abnormal call edges.  Write down the CFG in the
	dump file.
	(pass_fixup_cfg): Remove TODO_dump_func flag.
	* unwind-sjlj.c: Poison setjmp.
	* doc/install.texi (enable-sjlj-exceptions): Use more general wording.
	* doc/tm.texi (DWARF2_UNWIND_INFO): Likewise.
	(TARGET_UNWIND_TABLES_DEFAULT): Fix typo.
	(DONT_USE_BUILTIN_SETJMP): Document it.

2006-09-28  Geoffrey Keating  <geoffk@apple.com>

	PR target/28617
	* config/rs6000/rs6000.h [IN_LIBGCC2] (TARGET_POWERPC64): Define
	to 1 when __ppc64__ is defined.
	* config/rs6000/t-darwin (LIB2FUNCS_EXTRA): Add ppc64-fp.c and
	darwin-64.c.
	* config/rs6000/ppc64-fp.c: Also compile when __ppc64__ is defined.

2006-09-28  Steve Ellcey  <sje@cup.hp.com>

	* config/ia64/t-hpux (LIB2FUNCS_EXTRA): Remove unwind-hpux.c.
	* config/ia64/unwind-hpux.c: Delete.

2006-09-28  Eric Botcazou  <ebotcazou@adacore.com>

	* gimplify.c (gimplify_init_ctor_preeval): Call maybe_with_size_expr
	on the element before gimplifying it, instead of punting if it is of
	variable size.

2006-09-28  Zdenek Dvorak <dvorakz@suse.cz>

	* doc/loop.texi: New file.
	* doc/gccint.texi: Reference loop.texi.
	* Makefile.in (loop.texi): Add.

2006-09-27  Geoffrey Keating  <geoffk@apple.com>

	* config/darwin.h (ENABLE_EXECUTE_STACK): New, use getpagesize not
	__sysctl.
	* config/rs6000/darwin.h (ENABLE_EXECUTE_STACK): Remove.
	* config/i386/darwin.h (ENABLE_EXECUTE_STACK): Remove.

2006-09-28  Kaz Kojima  <kkojima@gcc.gnu.org>

	* config/sh/sh.md (divsi_inv_m0): Remove unused variable.

2006-09-27  Steven G. Kargl  <kargl@gcc.gnu.org>

	* doc/install.texi: Document required versions of GMP and MPFR.

2006-09-27  Paul Brook  <paul@codesourcery.com>

	PR target/29230
	* config/arm/arm.md (arith_adjacentmem): Handle large offsets.

2006-09-27  Richard Sandiford  <richard@codesourcery.com>

	* reload1.c (alter_reg): Require the alignment of the stack slot to
	be at least reg_max_ref_width bytes.
	(scan_paradoxical_subregs): Record the largest width in
	reg_max_ref_width.

2006-09-26  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/25261
	PR middle-end/28790
	* tree-nested.c (struct nesting_info): Added static_chain_added.
	(convert_call_expr): Set static_chain_added when adding static
	chain.  Handle OMP_PARALLEL and OMP_SECTION.

2006-09-25  Matthias Klose  <doko@debian.org>

	* doc/invoke.texi: Add missing full stop.

2006-09-25  Richard Henderson  <rth@redhat.com>

	* cgraph.c (dump_cgraph_varpool_node): Don't crash if called
	before cgraph_function_flags_ready.

2006-09-24  Zdenek Dvorak <dvorakz@suse.cz>
	    Adam Nemet  <anemet@caviumnetworks.com>

	* tree-ssa-loop-ivopts.c (aff_combination_convert,
	determine_common_wider_type): New functions.
	(get_computation_aff): Use them to simplify arithmetic between
	UBASE and CBASE if they are shortened from the same type.

2006-09-24  Kazu Hirata  <kazu@codesourcery.com>

	PR target/28911
	* config/m68k/m68k.md (negsf2, negdf2, negxf2): Use
	-2147483647 - 1 instead of 0x80000000.

2006-09-23  Revital1 Eres  <ERES@il.ibm.com>

	* flags.h (HONOR_NANS): Fix typo in comment.

2006-09-23  Uros Bizjak <uros@kss-loka.si>

	* config/i386/driver-i386.c (host_detect_local_cpu): Add prototype.

2006-09-23  Jakub Jelinek  <jakub@redhat.com>

	PR c/28706
	PR c/28712
	* tree.c (merge_attributes, attribute_list_contained): If both
	TREE_VALUEs are TREE_LISTs, use simple_cst_list_equal instead of
	simple_cst_equal.
	* c-typeck.c (comptypes_internal): Don't consider aggregates
	in different TUs as compatible if there one set of attributes is
	not a subset of the other type's attributes.
	(composite_type): Try harder not to create a new aggregate type.

2006-09-22  Geoffrey Keating  <geoffk@apple.com>

	* config/i386/driver-i386.c: Always define host_detect_local_cpu.
	* config/i386/i386.h: Define EXTRA_SPEC_FUNCTIONS on any i386
	or x86_64 host.  Define HAVE_LOCAL_CPU_DETECT.
	(CC1_CPU_SPEC): Make conditional on HAVE_LOCAL_CPU_DETECT rather
	than replicating condition above.
	* config.host (i[34567]86-*-*): Always use driver-i386.o.

	* config/darwin.h (LINK_SYSROOT_SPEC): New.
	(LINK_SPEC): If TARGET_SYSTEM_ROOT is defined, pass it to
	the linker by default.

2006-09-22  Mike Stump  <mrs@apple.com>

	* config/rs6000/darwin.h (PROFILE_HOOK): Reassociate comment with
	code.

2006-09-22  Richard Guenther  <rguenther@suse.de>

	PR middle-end/28964
	* cfgexpand.c (stack_var_size_cmp): Use DECL_UID to make
	sort of stack variables stable.

2006-09-22  Peter Bergner <bergner@vnet.ibm.com>

	PR middle-end/28690
	* explow.c (force_reg): Set REG_POINTER flag according to
	MEM_POINTER flag.

2006-09-22  Zdenek Dvorak <dvorakz@suse.cz>

	PR tree-optimization/28888
	* tree-if-conv.c (combine_blocks): Rewritten.
	* tree-cfg.c (tree_verify_flow_info): Check that edges with
	EDGE_TRUE/FALSE_VALUE follow COND_EXPR.

2006-09-22  Jakub Jelinek  <jakub@redhat.com>

	* tree-ssa-propagate.c (set_rhs): Copy EXPR_LOCATION if
	needed.

2006-09-21  Richard Sandiford  <richard@codesourcery.com>

	* varasm.c (copy_constant): Fix reversed gcc_assert check.

2006-09-21  Janis Johnson  <janis187@us.ibm.com>

	* ginclude/decfloat.h (DEC*_DEN): Define using the correct builtins.

2006-09-21  Roger Sayle  <roger@eyesopen.com>

	PR debug/29132
	* dwarf2out.c (dwarf2out_begin_prologue): Initialise the current label,
	dw_fde_current_label, to be the start of the function, i.e. the same
	value as dw_fde_begin.

2006-09-20  Richard Sandiford  <richard@codesourcery.com>

	* config/mips/mips.c (CODE_FOR_mips_abs_ps): Delete.
	* config/mips/mips.md (UNSPEC_ABS_PS): New constant.
	(UNSPEC_RSQRT1, UNSPEC_RSQRT2, UNSPEC_RECIP1, UNSPEC_RECIP2)
	(UNSPEC_SINGLE_CC, UNSPEC_SCC): Bump values by 1.
	(*nmadd<mode>, *nmadd<mode>_fastmath): Require !HONOR_NANS.
	(*nmsub<mode>, *nmsub<mode>_fastmath): Likewise.
	(abs<mode>2, neg<mode>2): Likewise.
	* config/mips/mips-ps-3d.md (mips_abs_ps): New define_expand.
	(*mips_abs_ps): New define_insn.

2006-09-20  Josh Conner  <jconner@apple.com>

	PR middle-end/25505
	* calls.c (expand_call): Allow reuse of structure return stack
	temp.

2006-09-20  Paul Brook  <paul@codesourcery.com>

	* config/arm/unwind-arm.c (selfrel_offset31): Clear top bit for
	positive offsets.

2006-09-20  Janis Johnson  <janis187@us.ibm.com>

	* doc/extend.texi (Decimal Float): Update for latest draft TR,
	clean up terminology.

2006-09-20  Steve Ellcey  <sje@cup.hp.com>

	PR target/28574
	* ifcvt.c (dead_or_predicable): Don't predicate then blocks
	with tablejumps in them.

2006-09-20  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/28046
	* c-omp.c (c_finish_omp_atomic): If ADDR is not simple enough,
	wrap it into TARGET_EXPR.

2006-09-20  Eric Christopher  <echristo@apple.com>

	* config/i386/i386.c (x86_fisttp): Remove.
	* config/i386/i386.h (x86_fisttp): Ditto.
	(TARGET_FISTTP): Ditto.

2006-09-19  Eric Christopher  <echristo@apple.com>

	* doc/tm.texi (OBJC_JBLEN): Describe.
	* config/i386/darwin.h (OBJC_JBLEN): Define.
	* config/rs6000/darwin.h: Ditto.

2006-09-19  Steven Bosscher  <steven@gcc.gnu.org>

	PR rtl-optimization/21299
	* reload1.c (reload): Purge invalid ASMs in the final pass.

2006-09-19  Steve Ellcey  <sje@cup.hp.com>

	PR  28490
	* config/ia64/ia64.c (ia64_legitimate_constant_p): Allow function
	pointers as legitimate constants.

2006-09-19  Paul Brook  <paul@codesourcery.com>

	PR target/28516
	* config/arm/arm.c (arm_unwind_emit_set): Handle reg = sp + const.

2006-09-17  Zdenek Dvorak <dvorakz@suse.cz>

	PR tree-optimization/28887
	* tree-ssa-loop-prefetch.c (analyze_ref): Strip nonaddressable
	component parts from the reference.
	(gather_memory_references_ref): Record the reference without the
	nonaddressable component parts.

2006-09-17  Steven Bosscher  <steven@gcc.gnu.org>

	PR c/25993
	* c-opts.c (c_common_handle_option): Ignore the -std options
	if the input language is assembly.

2006-09-17  Ira Rosen  <irar@il.ibm.com>

	PR tree-opt/21591
	* tree-data-ref.c (ptr_decl_may_alias_p): Look for the name memory
	tag first.
	(ptr_ptr_may_alias_p): Likewise.
	(record_record_differ_p): New function.
	(base_object_differ_p): Call record_record_differ_p.

2006-09-16  Andrew Pinski  <pinskia@physics.uc.edu>

	PR tree-opt/29059
	* tree-ssa-propagate.c (set_rhs): Reject MODIFY_EXPR right
	away for the expr argument.

2006-09-16  Steven Bosscher  <steven@gcc.gnu.org>

	PR tree-opt/27742
	* tree-vectorizer.c (vectorize_loops): Clear vect_loop_location
	before using it for dumping after vectorizing loops.

2006-09-16  Andrew Pinski  <pinskia@physics.uc.edu>
	    Jack Howarth  <howarth@bromo.med.uc.edu>

	PR target/29030
	* config/rs6000/rs6000.c (rs6000_darwin64_record_arg_advance_recurse)
	skip on error_mark_node.
	(rs6000_darwin64_record_arg_recurse): Likewise.

2006-09-16  Steven Bosscher  <steven@gcc.gnu.org>

	* rtl.h (LABEL_OUTSIDE_LOOP_P): Remove.
	* doc/rtl.texi: Remove related documentation.

2006-09-16  Bernd Schmidt  <bernd.schmidt@analog.com>

	* loop-doloop.c (doloop_optimize): Remove bogus arg from debugging
	printf.

2006-09-15  Jim Wilson  <wilson@specifix.com>

	* config/ia64/ia64.c (ia64_legitimate_constant_p, cast CONST):
	Handle symbol offsets same as they are handled in ia64_expand_move
	and move_operand.

2006-09-16  Andreas Tobler  <a.tobler@schweiz.org>

	* loop-doloop.c (doloop_optimize): Change type of max_cost to int.
	Add forgotten parameter to the fprintf call.

2006-09-15  Steve Ellcey  <sje@cup.hp.com>

	* config/ia64/hpux.h (HANDLE_PRAGMA_PACK_PUSH_POP): Add define.

2006-09-15  Uros Bizjak <uros@kss-loka.si>

	* doc/contrib.texi: Add my entry.

2006-09-15  Nick Clifton  <nickc@redhat.com>

	* doc/md.texi (Processor pipeline description): Fix typo in
	example of how to use the absence_set directive and reword the
	description to make it slightly easier to read.

2006-09-15  Bernd Schmidt  <bernd.schmidt@analog.com>

	* params.def (PARAM_MAX_ITERATIONS_COMPUTATION_COST): New.
	* loop-doloop.c (doloop_optimize): Use it to limit costs of
	expanding the number of iterations.
	* config/bfin/bfin.c (bfin_rtx_costs): Handle UDIV, UMOD.

	* cfgrtl.c (emit_insn_at_entry): New function.
	* rtl.h (emit_insn_at_entry): Declare it.
	* integrate.c (emit_initial_value_sets): Use it.

	* cfgrtl.c (emit_insn_at_entry): Use gcc_assert, not abort.

	* config/bfin/bfin.c (struct loop_info): New members block_bitmap and
	bad.
	(struct loop_work and related VEC declarations): Delete.
	(bfin_dump_loops): Print out new member bad.
	(bfin_bb_in_loop): Use plain bitmap test.  Don't recurse.
	(bfin_scan_loop): Don't recurse.
	(bfin_optimize_loop): Don't use a loop depth of -1 to indicate bad
	loops.  No longer need to update outer loops if the current one is
	found bad.  Move some validitiy checks to bfin_discover_loop.
	(bfin_discover_loop): New function, mostly split from bfin_reorg_loops,
	but changed not to check for nesting.  Also changed to use the new bad
	flag.
	(bfin_reorg_loops): Use bfin_discover_loop to find single loops one at a
	time.  Use bitmap based test to discover loop nesting.

2006-09-15  Kazu Hirata  <kazu@codesourcery.com>

	* doc/tm.texi (TARGET_FUNCTION_VALUE): Put @deftypefn all in
	one line.

2006-09-14  Richard Guenther  <rguenther@suse.de>
	    Kazu Hirata  <kazu@codesourcery.com>

	PR middle-end/28884.
	* doc/tm.texi (TARGET_FUNCTION_VALUE): Document.
	(FUNCTION_VALUE, FUNCTION_OUTGOING_VALUE): Deprecate.
	Replace mentions of FUNCTION_VALUE and FUNCTION_OUTGOING_VALUE
	with TARGET_FUNCTION_VALUE.

2006-09-14  Anatoly Sokolov <aesok@post.ru>

	PR target/26504
	* config/avr/avr.h (FRAME_POINTER_CFA_OFFSET): Define.

2006-09-13  Aldy Hernandez  <aldyh@redhat.com>

	* doc/tree-ssa.texi (Jumps): RESULT_DECL can also be an operand
	of a RETURN_EXPR

2006-09-13  Andrew Pinski  <pinskia@physics.uc.edu>

	PR debug/28980
	* dwarf2out.c (loc_descriptor_from_tree_1): Handle
	FUNCTION_DECL.

2006-09-13  Andreas Krebbel  <krebbel1@de.ibm.com>

	* basic_block.h (bb_has_eh_pred): Fix comment.

2006-09-13  Andreas Krebbel  <krebbel1@de.ibm.com>

	* flow.c (calculate_global_regs_live): Invalidate eh registers
	on eh edges. Renamed invalidated_by_call to invalidated_by_eh_edge.
	(propagate_block): Handle eh registers as if they were set at basic
	block start.
	* except.c (dw2_build_landing_pads): Don't emit clobbers for eh
	registers.
	* global.c (global_conflicts): Make eh registers to conflict with
	pseudos live at basic block begin.
	* basic_block.h (bb_has_eh_pred): New function.

2006-09-13  Richard Sandiford  <richard@codesourcery.com>

	PR rtl-optimization/28982
	* reload.c (find_reloads_address_1): Use RELOAD_OTHER for the
	index of a PRE_MODIFY or POST_MODIFY address.
	* reload1.c (inc_for_reload): Use find_replacement on the original
	base and index registers.

2006-09-12  H.J. Lu  <hongjiu.lu@intel.com>

	* doc/invoke.texi (mpreferred-stack-boundary): Remove exception
	for -Os. Update __m128 alignment requirement.

2006-09-13  Jan Hubicka  <jh@suse.cz>

	* cfganal.c (compute_dominance_frontiers_1): Don't be quadratic.

2006-09-12  Eric Botcazou  <ebotcazou@libertysurf.fr>

	PR rtl-optimization/28243
	* combine.c (distribute_notes) <REG_DEAD>: Do not consider SETs past
	the insn to which the note was originally attached.

2006-09-12  Andrew Pinski  <pinskia@physics.uc.edu>
	    Roger Sayle  <roger@eyesopen.com>

	* dwarf2out.c (file_table_last_lookup): Move this GC'd declaration
	outside of #ifdef DWARF2_DEBUGGING_INFO to fix bootstrap failure
	on platforms that don't use dwarf for debug info.

2006-09-12  Jason Merrill  <jason@redhat.com>

	PR middle-end/28493
	* builtins.c (expand_builtin_setjmp_receiver): Clobber
	hard_frame_pointer_rtx after using it to update the frame pointer.

2006-09-12  Roger Sayle  <roger@eyesopen.com>

	* target-def.h (TARGET_ASM_OPEN_PAREN): Guard with an #ifndef.
	(TARGET_ASM_CLOSE_PAREN): Likewise.
	* config/alpha/osf5.h (TARGET_ASM_OPEN_PAREN): Define.
	(TARGET_ASM_CLOSE_PAREN): Likewise.

2006-09-12  Roger Sayle  <roger@eyesopen.com>

	PR target/22223
	* config/alpha/alpha.c (alpha_start_function): Don't emit stack
	frame information for frames larger than 512 Kbytes on Tru64 when
	using the native assembler.

2006-09-12  Roger Sayle  <roger@eyesopen.com>

	PR middle-end/4520
	PR bootstrap/28784
	* cselib.c (cselib_hash_rtx): Avoid hashing on the address of labels
	and symbols.  Instead use the implementation from cse.c's hash_rtx.

2006-09-12  Jan Hubicka  <jh@suse.cz>

	PR rtl-optimization/28071
	* tree-vect-transform.c (vect_create_data_ref_ptr): Kill cast.
	(vect_transform_loop): Likewise.
	* tree-vectorizer.c (new_loop_vec_info): Likewise.
	(new_loop_vec_info): Likewise.
	(destroy_loop_vec_info): Likewise.
	* tree-dfa.c (create_var_ann): Use GCC_CNEW.
	(create_stmt_ann): Likewise.
	(create_tree_ann): Rename to ...
	(create_tree_common_ann): ... this one; allocate only the common part
	of annotations.
	* tree-vn.c (set_value_handle): Use get_tree_common_ann.
	(get_value_handle): Likewise.
	* tree-ssa-pre.c (phi_translate): Delay annotation allocation for
	get_tree_common_ann.
	* tree-vectorizer.h (set_stmt_info): Take stmt annotation.
	(vinfo_for_stmt): Use stmt annotations.
	* tree-flow.h (tree_ann_common_t): New type.
	(tree_common_ann, get_tree_common_ann, create_tree_common_ann): New.
	(tree_ann, get_tree_ann, create_tree_ann): New.
	* tree-flow-inline.h (get_function_ann): Do more type checking.
	(stmt_ann): Likewise.
	(tree_ann): Rename to ...
	(tree_common_ann): ... this one; return ony common_ann
	(get_tree_ann): Rename to ...
	(tree_common_ann): This one; return only common_ann.
	* tree-vect-patterns.c (vect_pattern_recog_1): Update call
	of set_stmt_info.

2006-09-11  Geoffrey Keating  <geoffk@apple.com>

	* config.gcc (i[34567]86-*-darwin*): Set with_arch and
	with_cpu by default.

	* dwarf2out.c (dwarf_file_data): New.
	(enum dw_val_class): Add dw_val_class_file.
	(struct dw_val_struct): Add val_file.
	(file_table): Change to a hash table.
	(file_table_emitted): Delete.
	(file_table_last_lookup_index): Delete.
	(emitcount): Delete.
	(last_emitted_file): New.
	(lookup_filename): Change prototype to return a struct dwarf_file_data.
	(init_file_table): Delete.
	(maybe_emit_file): Change prototype to take a struct dwarf_file_data.
	(AT_addr): Add comment.
	(add_AT_file): New.
	(AT_file): New.
	(get_AT_file): New.
	(print_die): Handle dw_val_class_file.
	(print_dwarf_line_table): Update for new file table structure.
	(attr_checksum): Do checksum a filename.
	(same_dw_val_p, same_attr_p): Do compare a filename.
	(size_of_die): Handle dw_val_class_file.
	(value_format): Likewise.
	(output_die): Likewise.  Also, call maybe_emit_file here.
	(struct file_info): Constify filenames.  Make file_idx a pointer
	to a struct dwarf_file_data.
	(struct dir_info): Constify directory names.  Remove 'used' field.
	(struct file_name_acquire_data): New.
	(file_name_acquire): New.
	(output_file_names): Modify to handle new file data structures.
	(add_src_coords_attributes): Use add_AT_file.
	(add_call_src_coords_attributes): Likewise.
	(dwarf2out_imported_module_or_decl): Likewise.
	(gen_subprogram_die): Modify for new file data structures.
	(gen_variable_die): Likewise.
	(file_table_eq): New.
	(file_table_hash): New.
	(file_table_last_lookup): New.
	(lookup_filename): Rewrite to handle new file data structures.
	(maybe_emit_file): Rewrite to handle new file data structures.
	(dwarf2out_source_line): Always call lookup_filename and
	maybe_emit_file.
	(dwarf2out_init): Create file_table here.
	(prune_unused_types_walk_attribs): Don't call maybe_emit_file here.
	(file_table_relative_p): New.
	(dwarf2out_finish): Change detection of relative filenames
	to work with new file data structures.  Move output_line_info call
	after debug_info output.

2006-09-11  H.J. Lu  <hongjiu.lu@intel.com>

	PR target/13685
	PR target/27537
	PR target/28621
	* config/i386/i386.c (override_options): Always default to 16
	byte stack boundary.

2006-09-11  Alexandre Oliva  <aoliva@redhat.com>

	PR target/28672
	* var-tracking.c (dump_dataflow_set): Start dumping at
	register zero.
	(clobber_variable_part): Kill only the variable part in
	registers holding it, leaving other variables alone.

2006-09-11  Josh Triplett  <josh@freedesktop.org>

	* doc/extend.texi (Other Builtins): Actually use the macro
	argument in the documentation example for
	__builtin_types_compatible_p.

2006-09-11  Eric Botcazou  <ebotcazou@libertysurf.fr>

	PR rtl-optimization/28726
	* sched-deps.c (sched_analyze_reg): New function extracted from...
	(sched_analyze_1): ...here.  Call it to analyze references to
	registers.  Treat again writes to a stack register as writing to the
	register.
	(sched_analyze_2): ...and here.  Call it to analyze references to
	registers.  Treat again reads of a stack register as reading the
	register.

2006-09-11  Guenter Roeck  <guenter@roeck-us.net>
	    David Edelsohn  <edelsohn@gnu.org>

	PR target/27287
	* config/rs6000/spe.md (frob_df_di): Remove %H.
	(frob_di_df): Remove %H.  Change evmergelo to mr.
	(frob_di_df_2): Remove %H.  Change evldd to two loads.

2006-09-11  Hideki Iwamoto  <h-iwamoto@kit.hi-ho.ne.jp>

	* doc/cpp.texi: Fix names of charset options.

2006-09-10  Andrew Pinski  <pinskia@physics.uc.edu>

	PR target/29009
	* config/i386/i386.c (override_options): Use 128-bit
	stack boundary always for 64bits.

2006-09-10  Eric Botcazou  <ebotcazou@libertysurf.fr>

	PR rtl-optimization/28636
	* combine.c (force_to_mode): Test for side-effects before
	substituting by zero.
	(simplify_shift_const): Likewise for zero or other constants.

2006-09-10  Steven Bosscher  <steven@gcc.gnu.org>

	PR middle-end/26983
	* builtins.c (expand_builtin_setjmp): Force next_lab to be
	preserved.

2006-09-10  Richard Sandiford  <richard@codesourcery.com>

	PR target/29006
	* config/mips/mips-protos.h (mips_mem_fits_mode_p): Declare.
	* config/mips/mips.c (mips_expand_unaligned_store): Use the mode
	returned by mode_for_size, rather than the mode of src itself,
	to choose between 32-bit and 64-bit patterns.
	(mips_mem_fits_mode_p): New function.
	* config/mips/mips.md (mov_<load>l, mov_<load>r): Use it to check
	that the size of the source matches the size of the destination.
	(mov_<store>l, mov_<store>r): Likewise.

2006-09-10  Eric Christopher  <echristo@apple.com>

	* config/darwin.c (machopic_select_rtx_section): Add CONST_VECTOR
	for literal16.

2006-09-09  Eric Christopher  <echristo@apple.com>

	PR target/28995
	* config/darwin.c (machopic_select_rtx_section): Add TARGET_64BIT
	for literal16.

2006-09-09  Roger Sayle  <roger@eyesopen.com>
	    Nicolas Setton <setton@adacore.com>

	* dwarf2out.c (convert_cfa_to_fb_loc_list): Handle DW_CFA_set_loc.

2006-09-10  Andreas Schwab  <schwab@suse.de>

	* config/m68k/m68k.md (bungt_rev): New pattern.

2006-09-09  Paolo Bonzini  <bonzini@gnu.org>
	    Dale Johannesen  <dalej@apple.com>

	PR target/26778
	* regclass.c (struct reg_pref): Update documentation.
	(regclass): Set prefclass to NO_REGS if memory is the best option.
	(record_reg_classes): Cope with a prefclass set to NO_REGS.

2006-09-08  Eric Christopher  <echristo@apple.com>

	* config.gcc (i?86-*-darwin): Add 64-bit HWI support.
	* config/t-slibgcc-darwin: Support x86_64 multilib.
	* config/i386/i386.h (JUMP_TABLES_IN_TEXT_SECTION):
	Return 1 for x86_64-darwin.
	* config/i386/t-darwin: Add m64 multilib.
	(LIB2_SIDITI_CONV_FUNCS): Use.
	(LIB2FUNCS_EXTRA): Ditto.
	* config/i386/darwin.h: Support x86_64.
	* config/i386/i386.c (override_options): Turn on flag_pic
	for x86_64-darwin. Disable flag_omit_pointer.
	(get_pc_thunk_name): Assert !TARGET_64BIT.
	(legitimate_address_p): Disable machopic addressing for
	x86_64.
	(legitimize_pic_address): Ditto.
	(ix86_expand_move): Ditto.
	(ix86_expand_call): Ditto.
	(machopic_output_stub): Ditto.
	* config/darwin.c (machopic_select_section): Support literal16.
	(machopic_select_rtx_section): Ditto.
	* config/darwin-sections.def: Ditto.
	* config/darwin-64.c: New.

2006-09-08  Joseph S. Myers  <joseph@codesourcery.com>

	PR c/28504
	* c-tree.h (struct c_arg_info): Add pending_sizes.
	* c-parser.c (c_parser_parms_declarator,
	c_parser_parms_list_declarator): Initialize pending_sizes.
	* c-decl.c (get_parm_info): Initialize pending_sizes.
	(get_parm_info): Set pending_sizes.
	(grokdeclarator): Call put_pending_sizes for parameters for
	function definition only.

2006-09-07  Jason Merrill  <jason@redhat.com>

	PR middle-end/27724
	* varasm.c (output_constant): Only strip actual no-op conversions.

	PR target/13685
	* config/i386/i386.c (override_options): Use 128-bit
	stack boundary if -msse.

2006-09-07  Eric Christopher  <echristo@apple.com>

	* config/darwin.h (MACHO_SYMBOL_FLAG_VARIABLE): Update
	comment.
	* config/i386/darwin.h (MACHO_SYMBOL_FLAG_VARIABLE):
	Redefine.

2006-09-07  Geoffrey Keating  <geoffk@apple.com>

	* dwarf2out.c: Remove strange characters from comment above
	dwarf2out_frame_debug_expr.

2006-09-07  Eric Christopher  <echristo@apple.com>

	* config/rs6000/darwin.h (HANDLE_SYSV_PRAGMA): Move from here...
	* config/darwin.h: ... to here.

2006-09-07  H.J. Lu  <hongjiu.lu@intel.com>

	* config/i386/i386.c (x86_partial_flag_reg_stall): New.

	* config/i386/i386.h (x86_partial_flag_reg_stall): New.
	(TARGET_PARTIAL_FLAG_REG_STALL): New.

	* config/i386/i386.md (*ashldi3_cmp_rex64): Disabled for
	TARGET_PARTIAL_FLAG_REG_STALL.
	(*ashldi3_cconly_rex64): Likewise.
	(*ashlsi3_cmp): Likewise.
	(*ashlsi3_cconly): Likewise.
	(*ashlsi3_cmp_zext): Likewise.
	(*ashlhi3_cmp): Likewise.
	(*ashlhi3_cconly): Likewise.
	(*ashlqi3_cmp): Likewise.
	(*ashlqi3_cconly): Likewise.
	(*ashrdi3_cmp_rex64): Likewise.
	(*ashrdi3_cconly_rex64): Likewise.
	(*ashrsi3_cmp): Likewise.
	(*ashrsi3_cconly): Likewise.
	(*ashrsi3_cmp_zext): Likewise.
	(*ashrhi3_cmp): Likewise.
	(*ashrhi3_cconly): Likewise.
	(*ashrqi3_cmp): Likewise.
	(*ashrqi3_cconly): Likewise.
	(*lshrdi3_cmp_rex64): Likewise.
	(*lshrdi3_cconly_rex64): Likewise.
	(*lshrsi3_cmp): Likewise.
	(*lshrsi3_cconly): Likewise.
	(*lshrsi3_cmp_zext): Likewise.
	(*lshrhi3_cmp): Likewise.
	(*lshrhi3_cconly): Likewise.
	(*lshrqi2_cmp): Likewise.
	(*lshrqi2_cconly): Likewise.

2006-09-07 Uros Bizjak <uros@kss-loka.si>

	PR target/28946
	* config/i386/i386.md ("*ashldi3_cconly_rex64", "*ashlsi3_cconly",
	"*ashlhi3_cconly", "*ashlqi3_cconly", "*ashrdi3_one_bit_cconly_rex64",
	"*ashrdi3_cconly_rex64", "*ashrsi3_one_bit_cconly", "*ashrsi3_cconly",
	"*ashrhi3_one_bit_cconly", "*ashrhi3_cconly",
	"*ashrqi3_one_bit_cconly", "*ashrqi3_cconly",
	"*lshrdi3_cconly_one_bit_rex64", "*lshrdi3_cconly_rex64",
	"*lshrsi3_one_bit_cconly", "*lshrsi3_cconly",
	"*lshrhi3_one_bit_cconly", "*lshrhi3_cconly",
	"*lshrqi2_one_bit_cconly", "*lshrqi2_cconly": New patterns to
	implement only CC setting effects of shift instructions.

2006-09-07  Martin Michlmayr  <tbm@cyrius.com>

	* doc/contrib.texi: Add myself.

2006-09-07  Andrew Pinski  <pinskia@physics.uc.edu>

	PR middle-end/28862
	* stor-layout.c (relayout_decl): Don't zero the alignment if it
	was set by the user.

2006-09-07  Paolo Bonzini  <bonzini@gnu.org>

	PR target/27117
	* config/sh/sh.md (divsi_inv_qitable, divsi_inv_hitable): New patterns.
	(divsi_inv_m1): Use them.
	(UNSPEC_DIV_INV_TABLE): New constant.

2006-09-06  James E Wilson  <wilson@specifix.com>

	PR rtl-opt/27883
	* flow.c (update_life_info): If UPDATE_LIFE_LOCAL and PROP_DEATH_NOTES
	then call count_or_remove_death_notes.

2006-09-06  Jason Merrill  <jason@redhat.com>

	PR c++/27371
	* tree-inline.c (copy_result_decl_to_var): New fn.
	(declare_return_variable): Use it.  Call declare_inline_vars here.
	(expand_call_inline): Not here.

2006-09-06  Diego Novillo  <dnovillo@redhat.com>

	* doc/contrib.texi: Update my entry.

2006-09-06  Nick Clifton  <nickc@redhat.com>

	* config/frv/frv.h (EXTRA_MEMORY_CONSTRAINT): Define.

2006-09-05  Andrew Pinski  <pinskia@physics.uc.edu>

	PR tree-opt/28937
	* tree-flow.h (tree_ssa_unswitch_loops): Return unsigned int.
	(canonicalize_induction_variables): Likewise.
	(tree_unroll_loops_completely): Likewise.
	(tree_ssa_prefetch_arrays): Likewise.
	(remove_empty_loops): Likewise.
	* tree-ssa-loop-unswitch.c (tree_ssa_unswitch_loops): Return
	TODO_cleanup_cfg instead of directly calling
	cleanup_tree_cfg_loop.
	* tree-ssa-loop-ivcanon.c (canonicalize_induction_variables):
	Likewise.
	(tree_unroll_loops_completely): Likewise.
	(remove_empty_loops): Likewise.
	* tree-ssa-loop-prefetch.c (tree_ssa_prefetch_arrays): Likewise.
	* tree-ssa-loop.c (tree_ssa_loop_unswitch): Use the return value
	of tree_ssa_unswitch_loops.
	(tree_ssa_loop_ivcanon): Use the return value of
	canonicalize_induction_variables.
	(tree_ssa_empty_loop): Use the return value of
	remove_empty_loops.
	(tree_complete_unroll): Use the return value of
	tree_unroll_loops_completely.
	(tree_ssa_loop_prefetch): Use the return value of
	tree_ssa_prefetch_arrays.
	* passes.c (execute_todo): Before Cleanup CFG, set
	updating_used_alone and after cleanup CFG, call
	recalculate_used_alone.

2006-09-05  Andrew Pinski  <pinskia@physics.uc.edu>

	PR tree-opt/28952
	* tree-vect-transform.c (vectorizable_condition): Move the check
	for the type after the check for simple condition.

2006-09-05  J"orn Rennecke  <joern.rennecke@st.com>
	    Kaz Kojima  <kkojima@gcc.gnu.org>

	PR target/28764
	* mode-switching.c (optimize_mode_switching): Make the destination
	block of an abnormal edge have no anticipatable mode.  Don't
	insert mode switching code at the end of the source block of
	an abnormal edge.

2006-09-05  Paolo Bonzini  <bonzini@gnu.org>

	PR rtl-optimization/26847
	* simplify-rtx.c (struct simplify_plus_minus_op_data): Remove ix.
	(simplify_plus_minus_op_data_cmp): For REGs, break ties on the regno.
	(simplify_plus_minus): Count n_constants while filling ops.  Replace
	qsort with insertion sort.  Before going through the array to simplify
	pairs, sort it.  Delay early exit until after the first sort, exiting
	only if no swaps occurred.  Simplify pairs in reversed order, without
	special-casing the first iteration.  Pack ops after simplifying pairs.

2006-09-05  Anatoly Sokolov <aesok@post.ru>

	* config/avr/avr.c (avr_mcu_types): Add support for at90pwm1 device.
	* config/avr/t-avr (MULTILIB_MATCHES): (Ditto.).
	* config/avr/avr.h (LINK_SPEC, CRT_BINUTILS_SPECS): (Ditto.).
	(avr_rtx_costs): Mark 'outer_code' argument with ATTRIBUTE_UNUSED.

2006-09-05  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/28900
	* tree-if-conv.c (find_phi_replacement_condition): Gimplify
	compound conditional before creating COND_EXPR condition.

2006-09-05  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/28905
	* tree-vrp.c (fix_equivalence_set): Manually implement
	!value_ranges_intersect_p to also handle symbolic ranges.

2006-09-05  Richard Guenther  <rguenther@suse.de>

	PR middle-end/28935
	* tree-ssa-ccp.c (fold_stmt_r): Make sure to fold the condition
	of a COND_EXPR.

2006-09-04  Eric Botcazou  <ebotcazou@libertysurf.fr>

	PR rtl-optimization/27616
	* cse.c (table_size): New static variable.
	(new_basic_block): Initialize it to 0.
	(remove_from_table): Decrement it.
	(insert): Increment it.
	(fold_rtx_mem_1): New function, renamed from fold_rtx_mem.
	(fold_rtx_mem): Enforce a cap on the recursion depth.  Call
	fold_rtx_mem_1 if under the cap.
	(fold_rtx) <RTX_COMM_ARITH>: In the associative case, delay a little
	the lookup of the equivalent expression and test for equality of the
	first operand of the equivalent expression before in turn looking up
	an equivalent constant for the second operand.

2006-09-02  Geoffrey Keating  <geoffk@apple.com>

	Revert this change:
	2006-03-17  Alexandre Oliva  <aoliva@redhat.com>
	* dwarf2out.c (dwarf2out_stack_adjust): Always track the stack
	pointer, instead of assuming it is possible to derive the
	correct args size from a call insn.

2006-09-02  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/27567
	* builtins.c (fold_builtin_memcpy, fold_builtin_memmove): Remove.
	(fold_builtin_mempcpy): Rename to...
	(fold_builtin_memory_op): ... this.  Optimize one element copy
	into an assignment.
	(fold_builtin_memset, fold_builtin_bzero, fold_builtin_bcopy): New
	functions.
	(expand_builtin_strcpy, expand_builtin_strncpy): Handle COMPOUND_EXPR.
	(expand_builtin_memcpy, expand_builtin_mempcpy,
	expand_builtin_memmove): Likewise.  Use fold_builtin_memory_op.
	(fold_builtin_1): Handle BUILT_IN_MEMSET, BUILT_IN_BZERO and
	BUILT_IN_BCOPY.  Use fold_builtin_memory_op for
	BUILT_IN_MEM{CPY,PCPY,MOVE}.

2006-09-01  DJ Delorie  <dj@redhat.com>

	* config/m32c/cond.md (cbranch<mode>4): Defer splitting until after reload.
	(stzx_16): Likewise.
	("stzx_24_<mode>"): Likewise.
	("stzx_reversed_<mode>"): Likewise, and make mode-specific.
	("cmp<mode>_op"): New.
	(cmp<mode>): Change to expander; just save operands.
	(b<code>_op): New.
	(b<code>): Change to expander, emit compare here.
	(s<code>_op): Change to use split and expander.
	(s<code>_24_op): Likewise.
	(s<code>_<mode>): New.
	(s<code>_<mode>_24): New.
	(movqicc_<code>_<mode): New.
	(movhicc_<code>_<mode>): New.
	(s<code>): New.
	(s<code>_24): New.
	* config/m32c/m32c.c (compare_op0, compare_op1): New.
	(m32c_pend_compare): New.
	(m32c_unpend_compare): New.
	(m32c_expand_scc): New.
	(m32c_expand_movcc): Emit the compare also.
	* config/m32c/predicates.md (mra_nopp_operand): New.

2006-09-01  J"orn Rennecke  <joern.rennecke@st.com>
	Richard Guenther  <rguenther@suse.de>
	Adam Nemet  <anemet@caviumnetworks.com>

	PR middle-end/27226
	* builtins.c (get_pointer_alignment): Handle more forms
	of base addresses that can be used to derive more precise
	information about alignment.

2006-09-01  Jason Merrill  <jason@redhat.com>

	PR c++/28899
	* gimplify.c (gimplify_modify_expr_rhs) [BIND_EXPR]: Handle
	want_value.

	* gimplify.c (voidify_wrapper_expr): Handle null type.

2006-09-01  Josh Conner  <jconner@apple.com>

	PR c++/25505
	* tree-nrv.c (dest_safe_for_nrv_p): New function.
	(execute_return_slot_opt): Use it.

2006-08-31  Josh Conner  <jconner@apple.com>

	PR c++/25505
	* tree-gimple.c (is_gimple_mem_rhs): Recognize functions
	returning aggregates.

2006-08-31  Zdenek Dvorak <dvorakz@suse.cz>

	PR tree-optimization/28839
	* tree-into-ssa.c (prune_unused_phi_nodes): Take into account kills in
	blocks in that phi arguments appear.

2006-08-31  Roger Sayle  <roger@eyesopen.com>

	PR other/22313
	* dwarf2out.c (add_fde_cfi): Use a set_loc if the current label is
	NULL, otherwise use an advance_loc4 to adjust relative to the
	current label.
	(output_cfi) <DW_CFA_set_loc>: Update the current label.
	(dwarf2out_switch_text_section): Reset the current label to avoid
	using advance_loc4 over section boundaries.

2006-08-31  Andreas Krebbel  <krebbel1@de.ibm.com>

	PR target/24367
	* config/s390/s390.md ("movsi", "movdi" expander): Accept rtxes like
	r12 + SYMBOLIC_CONST.

2006-08-30  Richard Guenther  <rguenther@suse.de>

	* Makefile.in (see.o): Add $(EXPR_H) dependency.

2006-08-30  Zdenek Dvorak <dvorakz@suse.cz>

	PR rtl-optimization/27735
	* cfgloopmanip.c (fix_loop_placements, fix_bb_placements, unloop):
	Add new argument to keep track of whether an irreducible region
	was affected.  All callers changed.
	(fix_irreducible_loops): Removed.
	(remove_path): Call mark_irreducible_loops if EDGE_IRREDUCIBLE_LOOP
	flags were invalidated.

2006-08-29  H.J. Lu  <hongjiu.lu@intel.com>

	* config/i386/i386.md (*fop_df_comm_mixed): Match DF operands
	instead of SF operands.
	(*fop_df_comm_sse): Likewise.
	(*fop_df_comm_i387): Likewise.
	(*fop_df_1_mixed): Likewise.
	(*fop_df_1_sse): Likewise.

2006-08-29  Andrew Pinski  <pinskia@physics.uc.edu>
	    J"orn Rennecke  <joern.rennecke@st.com>

	PR tree-optimization/17506
	* tree-ssa.c (warn_uninit): If warning about a location outside of
	the current function, note where the variable was declared.

2006-08-28  Zdenek Dvorak <dvorakz@suse.cz>

	PR tree-optimization/28411
	* double-int.c (double_int_div): Use double_int_divmod.
	(double_int_divmod, double_int_sdivmod, double_int_udivmod,
	double_int_mod, double_int_smod, double_int_umod): New functions.
	* double-int.h (double_int_divmod, double_int_sdivmod,
	double_int_udivmod, double_int_mod, double_int_smod, double_int_umod):
	Declare.
	* tree-ssa-loop-ivopts.c (constant_multiple_of): Returns the result
	in double_int.
	(get_computation_aff, get_computation_cost_at): Handle double_int
	return type of constant_multiple_of.

2006-08-28  Kazu Hirata  <kazu@codesourcery.com>

	PR middle-end/26632
	* convert.c (convert_to_integer): Set TREE_NO_WARNING to 1 on
	an implicit conversion.

2006-08-28  Prafulla Thakare  <prafullat@kpitcummins.com>

	* config/h8300/h8300.c (TARGET_DEFAULT_TARGET_FLAGS): New.

2006-08-27  Roger Sayle  <roger@eyesopen.com>

	* ifcvt.c (cheap_bb_rtx_cost_p): Don't speculatively execute
	x87 instructions.

2006-08-27  Kazu Hirata  <kazu@codesourcery.com>

	* config/i386/crtfastmath.c: Fix a comment typo.

2006-08-26  Roger Sayle  <roger@eyesopen.com>

	* tree.h (CASE_LOW_SEEN, CASE_HIGH_SEEN): New macros for manipulating
	temporary visit flags on CASE_LABEL_EXPRs.
	* c-common.c (match_case_to_enum): Add function comment.  Avoid
	O(N) loop, by looking up both CASE_LOW_SEEN and CASE_HIGH_SEEN.
	(c_do_switch_warnings):  Reorganize to record CASE_LOW_SEEN and
	CASE_HIGH_SEEN for enumerated types.  If the switch expression is
	a constant, only warn if that constant value isn't handled.

2006-08-26  Joseph S. Myers  <joseph@codesourcery.com>

	PR c++/24009
	* input.h (restore_input_file_stack): Declare.
	(INPUT_FILE_STACK_BITS): Define.
	* toplev.c (fs_p, input_file_stack_history,
	input_file_stack_restored, restore_input_file_stack): New.
	(push_srcloc, pop_srcloc): Check for input_file_stack_tick
	overflowing INPUT_FILE_STACK_BITS bits.  Save new state of stack.
	(pop_srcloc): Don't free old state of stack.

2006-08-26  David Edelsohn  <edelsohn@gnu.org>

	PR target/27544
	* doc/extend.texi (PowerPC Variable Attributes): Mention altivec.
	(PowerPC Type Attributes): New.

2006-08-26  Bob Wilson  <bob.wilson@acm.org>

	* config/xtensa/xtensa.c (function_arg_boundary): New.
	(function_arg, xtensa_gimplify_va_arg_expr): Limit alignment to
	STACK_BOUNDARY.
	* config/xtensa/xtensa.h (FUNCTION_ARG_BOUNDARY): Move code to new
	function_arg_boundary function that limits alignment to STACK_BOUNDARY.

2006-08-26  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/28683
	* cfgexpand.c (add_reg_br_prob_note): Check if last has exactly
	3 following insns.

2006-08-25  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

	* flow.c (verify_wide_reg): Use internal_error for consistency failure.
	(verify_local_live_at_start): Likewise.

2006-08-25  Joseph S. Myers  <joseph@codesourcery.com>

	PR c/27893
	* gimplify.c (gimplify_decl_expr, gimplify_init_ctor_preeval,
	omp_add_variable): Treat sizes as variable whenever not
	INTEGER_CST.

2006-08-26  Richard Guenther  <rguenther@suse.de>

	PR middle-end/28814
	* fold-const.c (fold_binary): Fold temporary to correct
	type before constructing new comparison.

2006-08-25  Fariborz Jahanian  <fjahanian@apple.com>

	PR c/28418
	* c-gimplify.c (gimplify_compound_literal_expr): Don't add
	variable again if DECL_SEEN_IN_BIND_EXPR_P.

2006-08-25  Joseph S. Myers  <joseph@codesourcery.com>

	PR c/28299
	* c-decl.c (start_function): Don't try to process prototype
	information from old declaration that isn't a function.

2006-08-25  Jan Hubicka  <jh@suse.cz>

	PR target/28621
	* config/i386/crtfastmath.c (set_fast_math): Force stack alignment.

2006-08-25  Alan Modra  <amodra@bigpond.net.au>

	PR target/27075
	* config/rs6000/rs6000.c (print_operand): Only use e500 %y syntax
	for 8 byte objects.

2006-08-25  J"orn Rennecke  <joern.rennecke@st.com>

	PR tree-optimization/16876
	* c-typeck.c (c_convert_parm_for_inlining): Don't take early
	exit if PARM doesn't match VALUE.

2006-08-25  Bob Wilson  <bob.wilson@acm.org>

	* config/xtensa/xtensa.h (ASM_OUTPUT_POOL_PROLOGUE): Do not emit a
	literal_prefix directive.
	(XTENSA_DECLARE_FUNCTION_SIZE): Delete.
	* config/xtensa/linux.h (ASM_DECLARE_FUNCTION_SIZE): Delete.
	* config/xtensa/elf.h (ASM_DECLARE_FUNCTION_SIZE): Delete.

2006-08-25  David Edelsohn  <edelsohn@gnu.org>

	PR target/28753
	* config/rs6000/rs6000.md (movcc_internal1): Change operand 1
	predicate to general_operand.  Add 0->y and I->r alternatives.

2006-08-25  Kazu Hirata  <kazu@codesourcery.com>

	* doc/tm.texi: Fix a typo.
	* predict.c: Fix comment typos.

2006-08-25  Nick Clifton  <nickc@redhat.com>

	* config/mn10300/mn10300.h (TARGET_CPU_CPP_BUILTINS): Add
	assertions of "cpu" and "machine".

2006-08-24  Andrew Pinski  <pinskia@physics.uc.edu>

	PR tree-opt/28807
	* tree-ssa-operands.c (access_can_touch_variable): Don't say
	the access through a base which has an alias set of 0 cannot
	touch the variable.

2006-08-24  Bill Wendling  <wendling@apple.com>

	* doc/tm.texi (TARGET_DEFAULT_PACK_STRUCT): Fixed English.

2006-08-24  Jan Hubicka  <jh@suse.cz>

	* reload1.c (emit_reload_insns): Fix yet another typo in my patch.

2006-08-24  Jan Hubicka  <jh@suse.cz>

	PR debug/26881
	* cgraph.c: Fix comments.
	(cgraph_varpool_mark_needed_node): Mark only variables not already
	output to file.
	* cgraphunit.c: Update comments; include gt-cgraphunit.h
	(cgraph_varpool_assembled_nodes_queue): New static variable.
	(cgraph_varpool_assemble_decl): Record output decls for debug out code.
	(cgraph_varpool_output_debug_info): New function.
	(cgraph_finalize_compilation_unit, cgraph_optimize): Call it.
	* Makefile.in: Add gt-cgraphunit.h

2006-08-24  Jan Hubicka  <jh@suse.cz>

	* predict.c (probability_reliable_p): New predicate.
	(edge_probability_reliable_p, br_prob_note_reliable_p): Likewise.
	(predict_loops): Do not predict loop exit with less than 2%
	probability.
	* basic-block.h (edge_probability_reliable_p,
	br_prob_note_reliable_p): Declare.
	* ia64.h (ia64_print_operand): Do not disable on-chip branch
	prediction when static predictor is not reliable.
	* rs6000.c (output_cbranch): Likewise.

2006-08-23  Stuart Hastings  <stuart@apple.com>

	PR 28825
	* gcc/config/i386/i386.c (ix86_expand_vector_init_duplicate,
	ix86_expand_vector_init_one_nonzero): Remove TARGET_SSE test.

2006-08-21  Geoffrey Keating  <geoffk@apple.com>

	PR debug/28692
	* dwarf2out.c (rtl_for_decl_init): Don't try to create RTL for
	complex values, nor for generic vector values.

2006-08-22  Richard Guenther  <rguenther@suse.de>

	PR middle-end/28776
	* tree-scalar-evolution.c (fold_used_pointer): Add at_stmt
	parameter.  Convert arguments to arithmetic expression to the
	chrecs type.
	(analyze_scalar_evolution_1): Adjust caller.

2006-08-22  Jan Hubicka  <jh@suse.cz>

	Patch by Paolo Bonzini
	* reload1.c (emit_reload_insns): Fix incorrect bracketing introduced by
	my previous patch.

2006-08-22  Daniel Berlin  <dberlin@dberlin.org>

	PR tree-optimization/28003
	* tree-ssa-alias.c (compute_may_aliases): Compute call clobbered
	before grouping aliases.

2006-08-22  Roger Sayle  <roger@eyesopen.com>

	* config/i386/i386.c (ix86_value_regno): Don't return FIRST_MMX_REG
	if !TARGET_MMX, and don't return FIRST_SSE_REG if !TARGET_SSE.

2006-08-21  Jason Merrill  <jason@redhat.com>

	PR c++/27115
	* gimplify.c (voidify_wrapper_expr): Handle STATEMENT_LIST as a
	wrapper.  Loop to handle nested wrappers.
	(gimplify_bind_expr): Remove temp parameter.
	(gimplify_modify_expr_rhs): Handle CLEANUP_POINT_EXPR, BIND_EXPR
	and STATEMENT_LIST on the rhs.
	(gimplify_statement_list): Voidify the STATEMENT_LIST.
	(gimplify_expr): Pass pre_p to gimplify_statement_list.
	(gimplify_target_expr): Remove special BIND_EXPR handling.

2006-08-21  J"orn Rennecke  <joern.rennecke@st.com>

	* config/sh/lib1funcs-Os-4-200.asm: Guard entire file with
	#if !__SHMEDIA__ .

2006-08-21  Olivier Hainque  <hainque@adacore.com>

	* gimplify.c (gimplify_init_constructor) <RECORD,UNION,ARRAY types>:
	Arrange for the temporary captures of components overlapping the lhs
	to happen before the lhs is possibly cleared.

2006-08-21  Mark Shinwell  <shinwell@codesourcery.com>

	* config/arm/pr-support.c (__gnu_unwind_execute): Insert " + 1" in
	necessary places to pass the correct "number of registers" values
	to _Unwind_VRS_Pop.

2006-08-20  Jan Hubicka  <jh@suse.cz>

	* tree-ssa-alias.c (eq_ptr_info, ptr_info_hash): New function.
	(create_name_tags): Instead of quadratic checking use hashtable.
	* bitmap.h: Include hashtab.h.
	(bitmap_hash): Declare.
	* bitmap.c (bitmap_hash): New function.

2006-08-20  Jan Hubicka  <jh@suse.cz>

	PR rtl-optimization/28071
	* tree-optimize.c (tree_rest_of_compilation): Do not remove edges
	twice.
	* tree-inline.c (copy_bb): Use cgraph_set_call_stmt.
	* ipa-inline.c (cgraph_check_inline_limits): Add one_only argument.
	(cgraph_decide_inlining, cgraph_decide_inlining_of_small_function,
	cgraph_decide_inlining_incrementally): Update use of
	cgraph_check_inline_limits.
	* cgraph.c (edge_hash, edge_eq): New function.
	(cgraph_edge, cgraph_set_call_stmt, cgraph_create_edge,
	cgraph_edge_remove_caller, cgraph_node_remove_callees,
	cgraph_remove_node): Maintain call site hash.
	* cgraph.h (struct cgraph_node): Add call_site_hash.
	(cgraph_set_call_stmt): New function.

2006-08-20  Jan Hubicka  <jh@suse.cz>

	PR rtl-optimization/28071
	* reload1.c (reg_has_output_reload): Turn into regset.
	(reload_as_needed, forget_old_reloads_1, forget_marked_reloads,
	choose_reload_regs, emit_reload_insns): Update to new
	reg_has_output_reload.

2006-08-20  Jan Hubicka  <jh@suse.cz>

	PR middle-end/28779
	* ipa-inline.c (cgraph_decide_inlining, cgraph_early_inlining): Compute
	function body sizes.
	* cgraphunit.c (cgraph_analyze_function): Don't do so.

2006-08-20  Danny Smith  <dannysmith@users.sourceforge.net>

	PR target/28648 c:
	* tree.c (handle_dll_attribute): Return early if not a
	var or function decl.

2006-08-18  Joseph Myers  <joseph@codesourcery.com>

	PR target/27565
	* config/rs6000/rs6000.h (LOCAL_ALIGNMENT): For SPE, only adjust
	alignment of SPE vector types.

2006-08-18  Christophe Jaillet  <christophe.jaillet@wanadoo.fr>

	* tree.c (is_attribute_with_length_p): Remove a duplicated assert.

2006-08-17  Jakub Jelinek  <jakub@redhat.com>

	PR c/28744
	* cgraph.h (struct cgraph_node): Remove externally_visible
	bitfield.
	* cgraphunit.c (process_function_and_variable_attributes): Set
	local.externally_visible rather than externally_visible.

	PR c/28744
	* c-common.c (handle_externally_visible_attribute): First look
	at TREE_CODE and only if it is function or var decl, check for
	non-public objects.  Don't warn for DECL_EXTERNAL.
	* cgraphunit.c (process_function_and_variable_attributes): Warn
	if externally_visible attribute is used on non-public object.

2006-08-17  Jan Hubicka  <jh@suse.cz>

	PR tree-optimization/27865
	* reload1.c (forget_marked_reloads): New function.
	(forget_old_reloads_1): When data are passed, just mark the registers
	for later removal.
	(reload_as_needed): Use the new mechanizm.

2006-08-17  Alexandre Oliva  <aoliva@redhat.com>

	PR target/28146
	* reload.h (reg_equiv_alt_mem_list): New declaration.
	* reload1.c (reg_equiv_alt_mem_list): New definition.
	(reload): Initialize it and release it.
	(delete_output_reload): Use it.
	* reload.c (push_reg_equiv_alt_mem): New function.
	(find_reloads_toplev): Call it.
	(find_reloads_address, find_reloads_address_1): Likewise.
	(find_reloads_subreg_address): Likewise.

2006-08-17  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

	PR rtl-optimization/28489
	* sched-ebb.c (begin_schedule_ready): Create basic block
	at the right place.
	(advance_target_bb): Skip empty blocks.
	* haifa-sched.c (bb_note): Make global.
	* sched-int.h (bb_note): Add prototype.

2006-08-16  Zdenek Dvorak <dvorakz@suse.cz>

	PR tree-optimization/27865
	* tree-vrp.c (adjust_range_with_scev): Do not use TYPE_{MIN,MAX}_VALUE
	for pointer types.
	* tree-scalar-evolution.c (fold_used_pointer_cast, pointer_offset_p,
	fold_used_pointer, pointer_used_p): New functions.
	(analyze_scalar_evolution_1): Use fold_used_pointer.
	* tree-chrec.c (convert_affine_scev): Convert no-op casts correctly.
	* tree-ssa-loop-ivopts.c (generic_type_for): Return integral type
	for pointers.

2006-08-17  Paolo Bonzini <bonzini@gnu.org>

	PR c++/28573
	* c-common.c (fold_offsetof_1): Add an argument and recurse down to it
	or the INTEGER_CST.  Fail on a CALL_EXPR.
	(fold_offsetof): Pass new argument to fold_offsetof_1.
	* c-parser.c (c_parser_postfix_expression): Don't include a NULL
	operand into an INDIRECT_REF.
	* c-typeck.c (build_unary_op): Adjust call to fold_offsetof.

2006-08-16  Zdenek Dvorak <dvorakz@suse.cz>

	PR gcov/profile/26570
	* value-prof.c (static_values): Removed.
	(tree_find_values_to_profile): Do not set static_values.
	(find_values_to_profile): Do not free static_values.
	* profile.c (instrument_values): Do not free the values.
	(branch_prob): Free the values.

2006-08-16  Naveen.H.S  <naveenh@kpitcummins.com>

	* config/m32c/m32c_lib1.S (__mulsi3): Use only registers for dest.

2006-08-16  Joseph S. Myers  <joseph@codesourcery.com>

	PR c/27697
	* c-typeck.c (build_component_ref): Combine qualifiers of
	structure or union and field.

2006-08-16  Zdenek Dvorak <dvorakz@suse.cz>

	PR rtl-optimization/28071
	* basic-block.h (bb_dom_dfs_in, bb_dom_dfs_out): Declare.
	* dominance.c (bb_dom_dfs_in, bb_dom_dfs_out): New functions.
	* tree-into-ssa.c (struct dom_dfsnum): New.
	(cmp_dfsnum, find_dfsnum_interval, prune_unused_phi_nodes): New
	functions.
	(insert_phi_nodes_for): Use prune_unused_phi_nodes instead of
	compute_global_livein.
	(prepare_block_for_update, prepare_use_sites_for): Mark the uses
	in phi nodes in the correct blocks.

2006-08-16  Zdenek Dvorak <dvorakz@suse.cz>

	PR tree-optimization/28364
	* tree-ssa-loop-ivopts.c (aff_combination_to_tree): Handle zero
	correctly.
	(fold_affine_expr): New function.
	(may_eliminate_iv): Use fold_affine_expr.

2006-08-16  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

	PR c/27489
	* c-typeck.c (c_start_case): Handle invalid orig_type correctly.
	Clean up.

2006-08-16  Mike Stump  <mrs@apple.com>

	* doc/invoke.texi (-Wno-deprecated-declarations): Fixup use of pxref.
	* doc/cppopts.texi (-MD): Likewise.

2006-08-15  Danny Smith  <dannysmith@users.sourceforge.net>

	PR c/28287
	* c-common.c (handle_weak_attribute): Ignore and warn if
	not a FUNCTION_ or VAR_DECL.

2006-07-15  Mike Stump  <mrs@apple.com>

	PR c/28280
	* c-parser.c (c_parser_typeof_specifier): Don't use
	c_finish_expr_stmt, open code desired semantics instead.

2006-08-15  Nick Clifton  <nickc@redhat.com>

	* config.gcc (x86-mingw32): Add a gthr-win32.h including makefile
	fragment to tmake_file only if threads are enabled.
	* config/i386/t-mingw32 (LIB2FUNCS_EXTRA): Move to...
	* config/i386/t-gthr-win32: New file. ... here.

2006-08-15  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

	PR c/28649
	* c-parser.c (c_parser_compound_statement_nostart): Reset
	parser->error after each statement.

2006-08-15  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/28713
	* omp-low.c (lower_omp_parallel): Convert t to
	receiver_decl's type.
	(expand_omp_parallel): STRIP_NOPS from the MODIFY_EXPR
	source before comparison.

	PR middle-end/28724
	* gimplify.c (gimplify_omp_atomic_pipeline): Convert oldival
	to itype in assignment to oldival2.

2006-07-14  Andrew Pinski  <pinksia@physics.uc.edu>

	PR c/27490
	PR c/27489
	* c-typeck.c (build_compound_expr): If the second expression
	is an error mark, then just return an error mark instead of
	creating a COMPOUND_EXPR.

2006-07-14  Mike Stump  <mrs@apple.com>

	* Makefile.in (LIBGCC_DEPS): Don't depend on LANGUAGES.

2006-08-14  Kazu Hirata  <kazu@codesourcery.com>

	* c-decl.c, var-tracking.c: Fix comment typos.

2006-08-14  Richard Sandiford  <richard@codesourcery.com>

	PR rtl-optimization/28634
	* reorg.c (fill_slots_from_thread): Do not assume A + X - X == A
	for floating-point modes unless flag_unsafe_math_optimizations.

2006-08-13  Alexandre Oliva  <aoliva@redhat.com>
	    Andrew Pinski  <pinskia@physics.uc.edu>

	PR c/27184
	* tree.c (build_array_type): Unify array types with
	unspecified index_type.
	* c-decl.c (grokdeclarator): Make sure we do not modify a
	unified incomplete array type.
	* c-typeck.c (store_init_value): Create distinct type before
	filling in the index type in an initializer from a compound
	literal.

	* c-decl.c (grokdeclarator): Remove code where we copy the
	array type over.

2006-08-13  Andrew Pinski  <pinskia@physics.uc.edu>

	* tree-pass.h (TODO_update_ssa): Fix which bit is used to take
	into account for TODO_dump_cgraph.
	(TODO_update_ssa_no_phi): Likewise.
	(TODO_update_ssa_full_phi): Likewise.
	(TODO_update_ssa_only_virtuals): Likewise.
	(TODO_remove_unused_locals): Likewise.
	(TODO_set_props): Likewise.
	(TODO_update_stmt_usage): Likewise.

2006-08-13  Dirk Mueller  <dmueller@suse.de>

	* c-common.c (strict_aliasing_warning): Fix formatting.

2006-08-13  Matthias Klose  <doko@debian.org>

	* doc/invoke.texi: Fix spelling errors.

2006-08-11  Eric Botcazou  <ebotcazou@libertysurf.fr>

	PR rtl-optimization/23454
	* reorg.c (relax_delay_slots): Update comment.

2006-08-11  Richard Guenther  <rguenther@suse.de>

	PR middle-end/28651
	* simplify-rtx.c (simplify_const_relational_operation):
	Simplify A CMP B to A - B CMP 0 only for EQ and NE comparison
	codes.

2006-08-10  Eric Botcazou  <ebotcazou@adacore.com>

	* tree.c (build1_stat): Also propagate the TREE_CONSTANT and
	TREE_INVARIANT flags for a VIEW_CONVERT_EXPR.

2006-08-10  Paul Brook  <paul@codesourcery.com>

	* final.c (final_scan_insn): Clear current_insn_predicate before
	outputting inline asm.

2006-08-10  Dorit Nuzman  <dorit@il.ibm.com>

	PR tree-optimization/26197
	* tree-ssa-alias.c (new_type_alias): Takes additional argument. Calls
	get_ref_base_and_extent and overlap_subvar to add only relevant
	subvars as may-aliases.
	(add_may_alias_for_new_tag): New function, factored out of
	new_type_alias.
	* tree-vect-transform.c (vect_create_data_ref_ptr): Call new_type_alias
	with additional argument.
	* tree-flow.h (new_type_alias): Takes additional argument.

2006-08-09  Nathan Sidwell  <nathan@codesourcery.com>

	* gcov.c (no_data_file): New flag.
	(read_count_file): Set it if data file not present.  Assume counts
	zero if not found.
	(output_lines): Don't name the data file, if there wasn't one.

2006-08-09  Eric Botcazou  <ebotcazou@adacore.com>

	* config/rs6000/rs6000.c (print_operand) <D>: Fix comment and adjust.
	(rs6000_generate_compare): Tweak comments.
	* config/rs6000/rs6000.md (UNSPEC_MV_CR_GT): Fix comment.

2006-08-09  Alexandre Oliva  <aoliva@redhat.com>

	* var-tracking.c (enum micro_operation_type): Add MO_COPY.
	(var_debug_decl): New function.
	(var_reg_set): Follow debug decl link.  Add location even if
	reg is already known to hold some other variable.
	(var_mem_set): Follow debug decl link.
	(var_reg_delete_and_set, var_mem_delete_and_set): Follow debug
	decl link.  Delete other known locations of the variable part
	if requested.
	(var_reg_delete, var_mem_delete): Delete other known locations
	of the variable part if requested.
	(same_variable_part_p): New function.
	(add_stores): Select MO_COPY when appropriate.
	(vt_initialize): Handle it.
	(compute_bb_dataflow, emit_notes_in_bb): Likewise.  Delete
	known locations for MO_SET and MO_CLOBBER.
	(find_variable_location_part): New function.
	(set_variable_part, delete_variable_part): Use it.
	(clobber_variable_part): New function.
	* dwarf2out.c (dwarf2out_var_location): Do not follow debug
	decl link.

2006-08-07  Victor Kaplansky <victork@il.ibm.com>

	PR tree-optimization/26969
	* tree-vect-analyze.c (vect_analyze_loop_form): Add check of latch
	with an empty list of PHIs.

2006-08-06  Paolo Bonzini  <bonzini@gnu.org>

	PR target/27827

	* conffig/i386/i386.md: Add peephole2 to avoid "fld %st"
	instructions.

2006-08-06  Andreas Schwab  <schwab@suse.de>

	* config/m68k/m68k.c (m68k_output_function_epilogue): Fix format
	string.  Whitespace and comment fixup.

2006-08-05  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

	PR c/28502
	* c-decl.c (validate_proto_after_old_defn): Return false on invalid
	argument.

	PR c/27721
	* c-typeck.c (build_modify_expr): Test earlier for non-lvalues.

	PR c/28136
	* c-parser.c (c_parser_postfix_expression_after_paren_type): Robustify.

2006-08-04  Jan Hubicka  <jh@suse.cz>

	PR target/26655
	PR target/28270
	* reload.c (push_reload): Patch out the mismatching instruction;
	return early.
	(find_reload): Bail out if the instruction was patched out.

2006-08-04  Jan Hubicka  <jh@suse.cz>

	PR tree-optimization/24888
	* tree-inline.c (expand_call_inline): Do not re-record variables.
	(declare_inline_vars): Add variable to unexpanded_var_list.

2006-08-04  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
	    Roger Sayle  <roger@eyesopen.com>

	PR rtl-optimization/26244
	* cse.c (fold_rtx): Correctly associate shifts when const_arg1 and/or
	inner_const are negative or greater than or equal to the bitsize of
	MODE.  If SHIFT_COUNT_TRUNCATED is false, the values aren't associated.
	Otherwise, the values are masked using GET_MODE_BITSIZE (mode) - 1.
	Simplify complicated if statement.  For ASHIFT and LSHIFTRT, return
	CONST0_RTX (mode) when the new shift count is greater than or equal to
	to the bitsize of the object being shifted and XEXP (y, 0) has no side
	effects.

2006-08-04  Kazu Hirata  <kazu@codesourcery.com>

	* tree-cfg.c: Fix a comment typo.

2006-08-03  Mark Mitchell  <mark@codesourcery.com>

	PR c++/28148
	* varasm.c (output_constant): Give the front end another chance to
	expand constants, after stripping NOPs.

2006-08-03  Jan Hubicka  <jh@suse.cz>

	* domwalk.c (walk_dominator_tree): Reorganize to non-recursive
	implementation.

2006-08-03  Dorit Nuzman  <dorit@il.ibm.com>

	PR tree-optimization/27770
	* tree-vectorizer.h (get_vectype_for_scalar_type): Function
	declaration removed (moved to tree-flow.h).
	(vect_can_force_dr_alignment_p): Likewise.
	* tree-flow.h (get_vectype_for_scalar_type): New function declaration
	(moved from tree-vectorizer.h).
	(vect_can_force_dr_alignment_p): Likewise.
	* tree-vectorizer.c (vect_print_dump_info): Allow calling this function
	from outside the vectorizer - in particular from cgraph stage.
	* tree-vect-analyze.c (vect_compute_data_ref_alignment): Don't increase
	the alignment of global arrays when -fsection-anchors is enabled.
	* cgraphunit.c (cgraph_increase_alignment): New function.
	(cgraph_optimize): Call cgraph_increase_alignment.

2006-08-03  David Edelsohn  <edelsohn@gnu.org>

	PR target/27566
	* config/rs6000/rs6000.c (rs6000_legitimize_reload_address): Do
	not reload a SPE symbol_ref into a lo_sum address.

2006-08-02  Daniel Jacobowitz  <dan@codesourcery.com>

	PR debug/28063
	* dwarf2out.c (prune_unused_types_prune): Move call to
	prune_unused_types_update_strings to cover the parent DIE also.

2006-08-02  Jan Hubicka  <jh@suse.cz>

	PR gcov/profile/28480
	* tree-cfg.c (change_bb_for_stmt): New function.
	(tree_merge_blocks, tree_split_blocks): Use it.

2006-08-01  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

	PR c++/28250
	PR c++/28257
	PR c++/28259
	PR c++/28267
	* toplev.c (compile_file): Return early on errorcount or sorrycount.
	* cgraphunit.c (cgraph_finalize_compilation_unit): Likewise.
	(cgraph_optimize): Likewise.

2006-08-01  Stuart Hastings  <stuart@apple.com>

	* rtl.h (UINTVAL) New.
	* config/rs6000/rs6000.c (SMALL_INT) Use it.
	* testsuite/gcc.dg/20060801-1.c: New.

2006-08-01  Daniel Jacobowitz  <dan@codesourcery.com>

	PR debug/23336
	* c-typeck.c (build_external_type): Mark used enum types.
	* dwarf2out.c (dwarf2out_abstract_function): Save and restore
	cfun also.
	(gen_subprogram_die): Whitespace fix.

2006-08-01  Jan Hubicka  <jh@suse.cz>

	* tree-outof-ssa.c (check_replaceable): Do not allocate def_vars
	bitmap when not needed.
	* tree-ssa-pre.c (bitmap_set_and, bitmap_set_and_compl): Free temporary
	bitmaps.

2006-08-01  Dirk Mueller  <dmueller@suse.de>

	* tree-vrp.c (fix_equivalence_set): Avoid bitmap memory leak.

2006-07-31  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

	* Makefile.in: Revert part of previous patch:
	Replace $(VARRAY_H) by varray.h in definition of BASIC_BLOCK_H
	and REGS_H.

2006-07-30  Eric Christopher  <echristo@apple.com>

	PR target/27543
	* doc/extend.texi (i386 Variable Attributes): Add anchor.
	(PowerPC Variable Attributes): New section.

2006-07-30  Atsushi Nemoto  <anemo@mba.ocn.ne.jp>

	PR target/28126 (partial fix)
	* config/mips/mips.md (tls_get_tp_<mode>): Set can_delay to no.

2006-07-28  Jan Hubicka  <jh@suse.cz>

	PR rtl-optimization/28071
	* cfgrtl.c (rtl_delete_block): Free regsets.
	* flow.c (allocate_bb_life_data): Re-use regsets if available.

2006-07-28  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

	* Makefile.in: Use $(HEADER_H) instead of header.h in dependencies
	and variables used in dependencies.

2006-07-27  Arjan van de Ven <arjan@linux.intel.com>

	* config/i386/i386.md (stack_tls_protect_set_di) Use %gs rather than
	%fs for -mcmodel=kernel.
	(stack_tls_protect_test_di): Likewise.

2006-07-27  Carlos O'Donell  <carlos@codesourcery.com>

	* Makefile.in: Use mkinstalldirs.

2006-07-27  H.J. Lu  <hongjiu.lu@intel.com>

	PR driver/28437
	* opts-common.c (prune_options): Skip joined switches.

2006-07-27  Jan Hubicka  <jh@suse.cz>

	PR rtl-optimization/28071
	* cselib.c (cselib_process_insn): Don't remove useless values too
	often for very large hashtables.

2006-07-27  Jan Hubicka  <jh@suse.cz>

	PR rtl-optimization/28071
	* global.c (greg_obstack): New obstack.
	(allocate_bb_info): Use it.
	(free_bb_info): Likewise.
	(modify_reg_pav): Likewise.

2006-07-27  Roger Sayle  <roger@eyesopen.com>

	* builtins.c (fold_fixed_mathfn): When long and long long are the
	same size, canonicalize llceil*, llfloor*, llround* and llrint*
	functions to their lceil*, lfloor*, lround* and lrint* forms.

2006-07-27  Kazuhiro Inaoka  <inaoka.kazuhiro@renesas.com>

	PR gcc/28508
	* config/m32r/m32r.md (branch_insn): Reduce pc range for short
	branch.
	(rev_branch_insn): Likewise.

2006-07-27  Jan Hubicka  <jh@suse.cz>

	PR rtl-optimization/28071
	* regmove.c (reg_is_remote_constant_p): Avoid quadratic behaviour.
	(reg_set_in_bb, max_reg_computed): New static variables.
	(regmove_optimize): Free the new array.
	(fixup_match_1): Update call of reg_is_remote_constant_p.

2006-07-26  Jan Hubicka  <jh@suse.cz>

	PR tree-optimization/27882
	* cgraph.c (cgraph_remove_node): Clear needed, reachable, next, previous
	and decl fields.
	* cgraphunit.c (cgraph_reset_node): Expect cgraph_remove_node to kill
	next pointer
	(cgraph_analyze_compilation_unit): Likewise.
	* ipa.c (cgraph_remove_unreachable_nodes): Likewise.
	* ipa-inline.c (cgraph_decide_recursive_inlining): Likewise.
	(cgraph_early_inlinine): Make order garbage collected.
	* Makefile.in (gt-ipa-inline): New garbagecollected file.

2006-07-26  Daniel Jacobowitz  <dan@codesourcery.com>

	* dbxout.c (output_types_sort): Add a comment.
	(output_used_types): Free the VEC.

2006-07-26  Daniel Jacobowitz  <dan@codesourcery.com>

	* function.c (reorder_fix_fragments): Delete.
	(reorder_blocks): Don't call it.
	(reorder_blocks_1): Put all subblocks under the origin block.

2006-07-26  Zdenek Dvorak <dvorakz@suse.cz>

	PR rtl-optimization/27907
	* expr.c (force_operand): Use convert_move to handle FLOAT_EXTEND and
	FLOAT_TRUNCATE.

2006-07-25  Roger Sayle  <roger@eyesopen.com>

	PR middle-end/28473
	* convert.c (convert_to_integer): When transforming (T)foo(x) into
	bar(x) check that bar's result type can represent all the values of T.

2006-07-25  Zdenek Dvorak <dvorakz@suse.cz>

	* tree-chrec.c (chrec_convert_aggressive): Return NULL on failure.

2006-07-25  Nick Clifton  <nickc@redhat.com>

	* ggc-page.c (NUM_SIZE_LOOKUP): New constant - the length of the
	size_lookup[] array.
	(ggc_alloc_stat): Use NUM_SIZE_LOOKUP.
	(ggc_pch_count_object): Likewise.
	(ggc_pch_alloc_object): Likewise.
	(ggc_pch_write_object): Likewise.
	(init_ggc): Do not attempt to initialize entries in the
	size_lookup[] array for objects whose size is greater than than
	the length of the array.

2006-07-25  Daniel Jacobowitz  <dan@codesourcery.com>

	* dbxout.c (output_used_types_helper): Push queued types
	on a VEC.
	(output_types_sort): New.
	(output_used_types): Collect used types on a VEC and sort them
	before emission.

2006-07-24  Richard Guenther  <rguenther@suse.de>

	PR middle-end/28463
	* cgraph.c (cgraph_remove_node): Do not check if dumps
	are enabled.
	* cgraphunit.c (cgraph_optimize): Likewise.

2006-07-24  Jan Hubicka  <jh@suse.cz>

	PR rtl-optimization/28071
	* tree-cfg.c (tree_split_block): Do not allocate new stmt_list nodes.
	* tree-iterator.c (tsi_split_statement_list_before): Do not crash when
	splitting before first stmt.

2006-07-24  Jan Hubicka  <jh@suse.cz>

	PR rtl-optimization/28071
	* ipa-inline.c (update_caller_keys): Remove edges that
	are no longer inline candidates.

2006-07-23  Daniel Jacobowitz  <dan@codesourcery.com>

	PR debug/27473
	* dbxout.c (output_used_types_helper, output_used_types): New.
	(dbxout_symbol): Call output_used_types.

2006-07-23  Jan Hubicka  <jh@suse.cz>

	PR c/25795
	PR c++/27369
	* cgraph.c (cgraph_varpool_nodes): Export.
	(decide_is_variable_needed): Ignored "used" attribute in
	unit-at-a-time mode.
	* cgraph.h (cgraph_varpool_nodes): Declare.
	* cgraphunit.c (decide_is_function_needed): Ignored "used" attribute in
	unit-at-a-time mode.

2006-07-23  Roger Sayle  <roger@eyesopen.com>

	PR target/28247
	* gthr-solaris.h: Prototype __gthrw forms of thr_self, mutex_init and
	mutex_destroy even when !_LIBOOBJC.  Remove duplicate prototype of
	the __gthrw form of thr_keycreate.
	(__gthread_key_delete): Silence the unused argument warning.

2006-07-23  Steven Bosscher  <steven@gcc.gnu.org>

	PR debug/25468
	* config/elfos.h (ASM_OUTPUT_ASCII): Remove 'register' marks.
	Cache the last found '\0' marker to avoid quadratic behavior.

2006-07-23  Jan Hubicka  <jh@suse.cz>

	* i386.md (subsi_3_zext): Fix output template.

2006-07-21  Mike Stump  <mrs@apple.com>

	* doc/invoke.texi (C++ Dialect Options): Note that
	-fvisibility-inlines-hidden doesn't affect explicitly
	instantiationed inline methods.

2006-07-20  Roger Sayle  <roger@eyesopen.com>

	* config.gcc (i[34567]86-*-solaris2*): Add usegas.h to $tm_file
	if the target assembler is GNU binutils' gas.
	* config/i386/sol2-10.h (ASM_SPEC): Check USE_GAS to determine
	whether to pass GNU gas or native as command line options.

2006-07-20  Jason Merrill  <jason@redhat.com>

	* tree.c (remove_attribute): New fn.
	* tree.h: Declare it.

2006-07-20  Paul Brook  <paul@codesourcery.com>

	PR 27363
	* cse.c (cse_insn): Add destination addresses to hash table. Check if
	they are invalidated by this instruction.

2006-07-21  Danny Smith  <dannysmith@users.sourceforge.net>

	PR target/28427
	* config/i386/cygming.h (MAX_OFILE_ALIGNMENT): Define.

2006-07-20  Eric Christopher  <echristo@apple.com>

	PR target/26877
	* config/i386/i386.h (OPTION_DEFAULT_SPECS): Reorder.

2006-07-19  Eric Christopher  <echristo@apple.com>

	* config/t-slibgcc-darwin (stmp-lipo): Remove.
	Rewrite dependencies for libgcc_s.1.dylib.

2006-07-19  Jakub Jelinek  <jakub@redhat.com>

	* except.c (duplicate_eh_regions_1): Clear next_peer.

2006-07-17  Nathan Sidwell  <nathan@codesourcery.com>

	* doc/invoke.texi (RS/6000 and PowerPC Options): Document that
	-mlongcall does not guarantee all calls will be long.
	* doc/extend.texi (long_call/short_call): Document that longcall
	does not guarantee a long call will be used.
	(longcall/shortcall): Likewise.

2006-07-18  Roger Sayle  <roger@eyesopen.com>

	PR middle-end/28283
	* expmed.c (expand_shift): Additionally check that the shift_cost
	is not MAX_COST and that INTVAL(op1) is less than MAX_BITS_PER_WORD
	before implementing a LSHIFT_EXPR as a sequence of additions.
	* config/sh/sh.c (shift_costs): Return MAX_COST to inform the
	middle-end that DImode shifts need to be synthesized by expand.

2006-07-18  Diego Novillo  <dnovillo@redhat.com>

	PR 28410
	* tree-ssa-operands.c (access_can_touch_variable): Update
	comment.
	Return true if ALIAS is .GLOBAL_VAR.

2006-07-18  David Daney  <ddaney@avtrex.com>

	* gcc.c (display_help): Fix typo in help text.

2006-07-18  Olivier Hainque  <hainque@adacore.com>

	* tree.h (categorize_ctor_elements): Adjust prototype and add
	descriptive comment, both in accordance with the interface change
	described below.
	* varasm.c (constructor_static_from_elts_p): New function.
	Whether a constructor node is a valid static constant initializer
	if all its elements are.
	(initializer_constant_valid_p) <CONSTRUCTOR value>: Use it.
	* output.h: Declare it.
	* expr.c (categorize_ctor_elements_1): Return whether the constructor
	is a valid constant initializer instead of computing the number of
	non-constant elements.  Use constructor_static_from_elts_p for this
	purpose.  Replace the head comment with an indication that this is a
	helper for categorize_ctor_elements.
	(categorize_ctor_elements): Same interface change as for the _1
	helper.  Former head comment from this helper moved here, adjusted to
	account for the interface changes.
	(mostly_zeros_p): Adjust call to categorize_ctor_elements.
	(all_zeros_p): Likewise.
	* gimplify.c (gimplify_init_constructor): Decide whether we can make
	static versions of the constructor from the categorize_ctor_elements
	return value instead of the formerly computed number of non-constant
	elements.

2006-07-18  Paolo Bonzini  <bonzini@gnu.org>

	* configure: Regenerate.
	* Makefile.in (build_libsubdir): New configure substitution
	(build_libobjdir): New variable.
	(BUILD_LIBIBERTY): Use it.

2006-07-18  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

	PR c/28286
	* c-pragma.c (handle_pragma_pack): Handle invalid constants.

2006-07-18  Alexandre Oliva  <aoliva@redhat.com>

	PR c/26993
	* c-common.c (handle_weakref_attribute): Ignore attribute in
	the same conditions the alias attribute is ignored.

2006-07-17  Carlos O'Donell  <carlos@codesourcery.com>

	* dbxout.c (dbxout_function_end): Do not increment scope_labelno.
	(dbxout_begin_prologue): Increment scope_labelno.

2006-07-17  Richard Henderson  <rth@redhat.com>

	PR 27889
	* tree-nested.c (create_tmp_var_for): Set DECL_COMPLEX_GIMPLE_REG_P
	if needed.

2006-07-17  Roger Sayle  <roger@eyesopen.com>
	    Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

	* config/i386/gmon-sol2.c: Silence compilation warnings by partially
	synchronizing code with config/sparc/gmon-sol2.c.  Remove #if 0
	blocks.  #include "tconfig.h" and "tsystem.h" to prototype system
	functions such as sbrk, write, etc..  Add function prototypes.
	Convert function declarations from K&R to ISO C.  Cast pointers
	to "long" and "unsigned long" instead of "int" and "unsigned int".
	Convert tokens following #endif into comments.

2006-07-17  Toon Moene  <toon@moene.indiv.nluug.nl>

	* invoke.texi: Remove mention of f77; Reformat table for
	inline parameter options correctly; mention that -malign-double
	is default on x86-64 targets.

2006-07-17  Zdenek Dvorak <dvorakz@suse.cz>

	* tree-chrec.c (avoid_arithmetics_in_type_p): New.
	(convert_affine_scev, chrec_convert_aggressive): Use
	avoid_arithmetics_in_type_p.  Do not check for the subtypes
	separately.

2006-07-17  Richard Sandiford  <richard@codesourcery.com>

	PR middle-end/28403
	* optabs.c (expand_doubleword_shift): Wrap the call to
	do_compare_rtx_and_jump with NO_DEFER_POP and OK_DEFER_POP.

2006-07-17  Richard Sandiford  <richard@codesourcery.com>

	PR middle-end/28402
	* optabs.c (expand_binop): Pass next_methods rather than methods
	to expand_doubleword_shift.

2006-07-17  J"orn Rennecke  <joern.rennecke@st.com>

	PR other/28251
	* tree.h (dump_addr): Declare.
	* print-tree.c (dump_addr): New function.
	(print_node_brief, print_node): Use it.
	* print-rtl.c (print_rtx): Likewise.
	* common.opt (-fdump-noaddr): New option.
	* doc/invoke.texi (-fdump-noaddr): Document.
	* loop-unroll.c (si_info_hash): Make hash independent of addresses.
	(ve_info_hash): Likewise.

2006-07-13  Andrew Haley  <aph@redhat.com>

	PR tree-optimization/19505
	* tree-cfgcleanup.c (tree_forwarder_block_p): If we have an EH
	edge leaving this block, make sure that the destination of this
	block has only one predecessor.

2006-07-17  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/28238
	* tree-inline.c (copy_bb): Check if we produced valid
	gimple copying and substituting a stmt.  If not, gimplify
	it.

2006-07-16  Eric Botcazou  <ebotcazou@adacore.com>

	* optabs.c (maybe_encapsulate_block): New function extracted from...
	(emit_libcall_block): ...here.  Invoke it on the block of insns to
	maybe emit REG_LIBCALL/REG_RETVAL notes around the block.
	(emit_no_conflict_block): Likewise.

2006-07-16  Eric Botcazou  <ebotcazou@libertysurf.fr>

	* doc/install.texi (sparc-sun-solaris2*): Add GMP version number.

2006-07-15  Roger Sayle  <roger@eyesopen.com>

	* tree-gimple.c (is_gimple_stmt): Sink test of IS_EMPTY_STMT into
	a new NOP_EXPR case of the switch statement.

2006-07-15  Kaz Kojima  <kkojima@gcc.gnu.org>

	PR middle-end/28160
	* stor-layout.c (place_field): Take the bit field with
	an excessive size into account in the ms-bitfiled case.

	PR middle-end/28161
	* stor-layout.c (place_field): Use DECL_BIT_FIELD_TYPE of
	the previous bit field.

2006-07-14  Eliot Dresselhaus  <eliot@sonic.net>

	PR target/27287
	* config/rs6000/spe.md (frob_di_df_2): Add m->r alternative.

2006-07-14  Ulrich Weigand  <uweigand@de.ibm.com>

	* config/s390/linux-unwind.h (s390_fallback_frame_state): Detect
	signal frames correctly even when the signal was installed with
	sa_restorer set.

2006-07-14  Carlos O'Donell  <carlos@codesourcery.com>

	* dbxout.c (dbxout_begin_prologue): Emit LFBB label at function start.
	(dbxout_function_end): Use local label LFBB. Remove hook
	DBX_OUTPUT_NFUN.
	(dbxout_source_line): Use local label LFBB.
	(dbxout_block): Likewise.
	(dbx_output_lbrac): Remove hook DBX_OUTPUT_LBRAC.
	(dbx_output_rbrac): Remove hook DBX_OUTPUT_RBRAC.
	* config/rs6000/linux64.h: Remove DBX_OUTPUT_LBRAC, DBX_OUTPUT_RBRAC,
	and DBX_OUTPUT_NFUN.

2006-07-13  Janis Johnson  <janis187@us.ibm.com>

	* doc/sourcebuild.texi (Test Directives): Document dg-shouldfail.

2006-07-13  Jan Hubicka  <jh@suse.cz>

	* cgraphunit.c (cgraph_varpool_analyze_pending_decls): Call
	align_variable.
	* output.h (align_variable): Declare.
	* varasm.c (align_variable): Export.
	* value-prof.c (tree_value_profile_transformations): Recompute iterator
	when basic block changed.

2006-07-13  Nick Clifton  <nickc@redhat.com>

	* config/sh/sh.c (sh_reorg): Ignore deleted insns whilst
	walking the LOG_LINKS chain.

2006-07-12  Geoffrey Keating  <geoffk@apple.com>

	* doc/invoke.texi (C++ Dialect Options): Explain difference
	between -fvisibility-inlines-hidden and setting hidden
	visibility explicitly.

2006-07-12  Eric Christopher  <echristo@apple.com>

	* config/t-slibgcc-darwin (SHLIB_LINK): Don't munge stmp-lipo.
	(stmp-lipo): Depend on libgcc.a.

2006-07-12  Kazu Hirata  <kazu@codesourcery.com>

	* tree.c: Fix a comment typo.

2006-07-12  Naveen.H.S  <naveenh@kpitcummins.com>

	* config/m32c/muldiv.md (umulhisi3_c): Use only registers for
	dest.
	(umulhisi3_r): Likewise.

2006-07-12  Paolo Carlini  <pcarlini@suse.de>

	PR libstdc++/27878
	* doc/install.texi (mips-sgi-irix6): Add note about IRIX 6.5.x,
	x < 19, vs wchar_t support.

2006-07-12  Nick Clifton  <nickc@redhat.com>

	* config/sh/sh.h (SUBTARGET_ASM_RELAX_SPEC): Use -isa=sh4-up
	instead of -isa=sh4.

2006-07-12  Mike Stump  <mrs@apple.com>

	* protoize.c (edit_fn_definition): Add volatile to clean_text_p.

2006-07-10  Eric Christopher  <echristo@apple.com>

	* config/t-slibgcc-darwin: Rewrite.

2006-07-10  Laurynas Biveinis  <laurynas.biveinis@gmail.com>

	PR bootstrap/20437
	* Makefile.in (configure): add missing aclocal.m4 and acinclude.m4
	dependencies.

2006-07-08  Matthias Klose  <doko@debian.org>

	* doc/sourcebuild.texi: Fix typo.

2006-07-07  Mike Stump  <mrs@apple.com>

	* toplev.c (process_options): Don't give -ffunction-sections may
	affect debugging warning for Mach-O.

2006-07-07  James E Wilson  <wilson@specifix.com>

	* config/mips/mips.md (cpu): Add sb1a.
	* config/mips/sb1.md: Modify almost all patterns to accept sb1a in
	addition to sb1.  Adjust comments to clarify SB-1A differences from
	SB-1.
	(ir_sb1a_load): New.  Modify bypasses to use it.
	(ir_sb1a_simple_alu): Likewise.
	* config/mips/mips.c (mips_cpu_info_table): Add sb1a.
	(mips_rtx_cost_data): Add PROCESSOR_SB1A support.
	(mips_issue_rate): Add PROCESSOR_SB1A.
	(mips_multipass_dfa_lookahead): Use TUNE_SB1 instead of PROCESSOR_SB1.
	* config/mips/mips.h (processor_type): Add PROCESSOR_SB1A.
	(TARGET_SB1): Add PROCESSOR_SB1A check.
	(TUNE_SB1): Likewise.

	* config/mips/mips-protos.h (mips_store_data_bypass_p): New.
	* config/mips/mips.c (mips_store_data_bypass_p): New.
	* config/mips/sb1.md: Use mips_store_data_bypass_p instead of
	store_data_bypass_p.

2006-07-08  Paul Brook  <paul@codesourcery.com>

	PR target/27991
	* config/m68k/m68k.md: Add r-m patterns for 68881 movxf.

2006-07-07   Richard Guenther  <rguenther@suse.de>

	PR middle-end/28268
	* tree.h (build_one_cst): Declare.
	* tree.c (build_one_cst): New function.
	* tree-ssa-math-opts.c (get_constant_one): Remove.
	(insert_reciprocals): Use build_one_cst.
	* fold-const.c (fold_plusminus_mult): Likewise.

2006-07-07  Roger Sayle  <roger@eyesopen.com>

	* pointer-set.c (pointer_set_destroy): Correct whitespace.
	* cfgloopanal.c (dump_graph): Likewise.
	* dojump.c (discard_pending_stack_adjust): Likewise.
	* fix-header.c (TARGET_EXTRA_INCLUDE, TARGET_EXTRA_PRE_INCLUDES):
	Likewise.
	* alloc-pool.c (dump_alloc_pool_statistics): Likewise.
	* function.c (finalize_block_changes): Likewise.
	* gcc-common.c (ggc_free_overhead, dump_gcc_loc_statistics): Likewise.
	* tree-ssa-dce.c (clear_control_dependence_bitmap): Likewise.
	* rtl.c (dump_rtx_statistics): Likewise.
	* tree-ssa-structalias.c (sort_fieldstack, init_alias_heapvars):
	Likewise.
	* varray.c (dump_varray_statistics): Likewise.
	* dfp.c (encode_decimal32, decode_decimal32, encode_decimal64,
	decode_decimal64, encode_decimal128, decode_decimal128,
	decimal_real_to_decimal): Likewise.

2006-07-07  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/28187
	* tree-vrp.c (vrp_operand_equal_p): New function.
	(vrp_bitmap_equal_p): Likewise.
	(update_value_range): Use them to compare old and new
	max and min values.

2006-07-06  Roger Sayle  <roger@eyesopen.com>

	* c-parser.c (c_parser_skip_to_end_of_block_or_statement): Add
	a default case to switch statement to silence compiler warnings.

2006-07-06  Roger Sayle  <roger@eyesopen.com>

	PR target/27968
	* configure.ac (HAVE_AS_IX86_FFREEP): On x86 targets check whether
	the configured assembler supports the x87's ffreep mnemonic.
	* configure: Regenerate.
	* config.in: Regenerate.

	* config/i386/i386.c (output_387_ffreep): New function.
	(output_fp_compare): Use output_387_ffreep to emit ffreep insns.
	(output_387_reg_move): Likewise.

2006-07-06  Paul Eggert  <eggert@cs.ucla.edu>

	Port to hosts whose 'sort' and 'tail' implementations
	treat operands with leading '+' as file names, as POSIX
	has required since 2001.  However, make sure the code still
	works on pre-POSIX hosts.
	* Makefile.in (slowcompare): Port to POSIX 1003.1-2001,
	which says you should use "tail -c +N" rather than "tail +Nc".
	Fix a bug: the old code incorrectly skipped 15 bytes, not 16.

2006-07-06  Zdenek Dvorak <dvorakz@suse.cz>

	* tree-ssa-loop-niter.c (scev_probably_wraps_p): Fix typo in
	argument name.

2006-07-06  David Edelsohn  <edelsohn@gnu.org>

	PR target/28150
	* config/rs6000/rs6000.c (rs6000_legitimate_address): Do not allow
	PRE_{INC,DEC} of TFmode.

2006-07-06  David Edelsohn  <edelsohn@gnu.org>
	    Alan Modra  <amodra@bigpond.net.au>

	PR target/28170
	* config/rs6000/rs6000.c (insvdi_rshift_rlwimi_p): Correct shiftop
	bounds. Simplify.

2006-07-06  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

	PR target/28285
	* config/alpha/predicates.md (alpha_swapped_comparison_operator):
	Remove duplicate gtu.

2006-07-05  Jason Merrill  <jason@redhat.com>

	PR c++/13983
	PR c++/17519
	* stor-layout.c (finish_record_layout): Copy TYPE_PACKED to variants.
	* c-common.c (handle_packed_attribute): So don't copy it here.
	* c-decl.c (finish_struct): Don't copy TYPE_ALIGN.

2006-07-05  Mike Stump  <mrs@apple.com>

	* doc/invoke.texi (Invoking G++): Clarify prose for g++.

2006-07-05  H.J. Lu  <hongjiu.lu@intel.com>

	PR target/26146
	* config.gcc: Check with_cpu for i[34567]86--*-solaris2.1[0-9]*.

2006-07-05  Richard Guenther  <rguenther@suse.de>

	PR target/28158
	* config/i386/i386.md (*negdf2_1): Restrict pattern to
	TARGET_SSE2 targets if using SSE math.
	(*absdf2_1): Likewise.

2006-07-05  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/28162
	* fold-const.c (fold_binary): For (-A) * (-B) -> A * B
	make sure to convert the operands to the correct type.

2006-07-04  Paolo Bonzini  <bonzini@gnu.org>

	PR tree-optimization/28218

	* tree-ssa-math-opts.c (execute_cse_reciprocals): Fix calls
	to calculate and free the dominator information.

2006-07-04  Peter O'Gorman  <peter@pogma.com>

	* mklibgcc.in: chmod 644 before ranlib during install.

2006-07-04  Andrew Stubbs <andrew.stubbs@st.com>
	    J"orn Rennecke <joern.rennecke@st.com>

	* configure.ac (.eh_frame data check): Use diff -b.

2006-07-04  Eric Botcazou  <ebotcazou@libertysurf.fr>

	PR bootstrap/18058
	* Makefile.in (BUILD_RTL): Add build/vec.o.
	(build/gencondmd.o): Filter out -fkeep-inline-functions.
	(build/genextract): Delete.
	(build/genautomata): Likewise.

2006-07-04  Alan Modra  <amodra@bigpond.net.au>

	PR target/28207
	* config/rs6000/rs6000.c (function_arg_boundary): Double-word align
	128-bit IBM long doubles for ABI_V4.

2006-07-03  Eric Botcazou  <ebotcazou@adacore.com>

	* tree.c (range_in_array_bounds_p): New predicate.
	* tree.h (range_in_array_bounds_p): Declare it.
	* tree-eh.c (tree_could_trap_p) <ARRAY_RANGE_REF>: Use it to
	return a less conservative answer.
	* tree-sra.c (struct sra_elt): Add new pointer field 'groups'
	and flag 'is_group'.
	(IS_ELEMENT_FOR_GROUP): New macro.
	(FOR_EACH_ACTUAL_CHILD): Likewise.
	(next_child_for_group): New helper function.
	(can_completely_scalarize_p): Take into account groups.
	(sra_hash_tree): Handle RANGE_EXPR.
	(sra_elt_eq): Likewise.
	(lookup_element): Be prepared for handling groups.
	(is_valid_const_index): Delete.
	(maybe_lookup_element_for_expr) <ARRAY_REF>: Use in_array_bounds_p
	instead of is_valid_const_index.
	<ARRAY_RANGE_REF>: New case.
	(sra_walk_expr) <ARRAY_REF>: Use in_array_bounds_p instead of
	is_valid_const_index.
	<ARRAY_RANGE_REF>: Do not unconditionally punt.
	(scan_dump): Dump info for groups too.
	(decide_instantiation_1): Likewise.
	(decide_block_copy): Assert that the element is not a group.
	Propagate decision to groups.
	(generate_one_element_ref): Handle RANGE_EXPR.
	(mark_no_warning): Iterate over actual childs.
	(generate_copy_inout): Likewise.
	(generate_element_copy): Likewise.
	(generate_element_zero): Likewise.
	(generate_element_init_1): Likewise.
	(dump_sra_elt_name): Handle RANGE_EXPR.

2006-07-03  Roger Sayle  <roger@eyesopen.com>

	PR tree-optimization/26251
	* tree-ssa-threadupdate.c (redirection_block_p): New function.
	(thread_block): When optimizing for size refuse to thread jumps
	that would require duplication of blocks other than redirection
	blocks.

2006-07-03  Paolo Bonzini  <bonzini@gnu.org>

	* configure.ac: Fix thinko in previous check-in.
	* configure: Regenerate.

2006-07-03  Paolo Bonzini  <bonzini@gnu.org>

	PR other/27063
	* configure.ac (for lang...): Simplify nesting of conditionals.
	Test subdir_requires for non-enabled languages.  Move processing
	of lang_opt_files and lang_tree_fiels below that test.
	* configure: Regenerate.
	* doc/sourcebuild.texi (Front End Config): Document subdir_requires.

2006-07-01  Martin Michlmayr  <tbm@cyrius.com>

	* doc/gcov.texi (Invoking Gcov): Add a missing word.

2006-06-30  Kazu Hirata  <kazu@codesourcery.com>

	* cfgexpand.c, config/i386/i386.c, genpreds.c, tree-cfg.c: Fix
	comment typos.

2006-06-29  Jason Merrill  <jason@redhat.com>

	PR c++/26905
	PR c++/26612
	PR c++/27000
	PR c++/26984
	PR c++/19134
	* tree.c (build_decl_stat): Don't hande #pragma visibility here.
	* c-common.c (c_determine_visibility): Handle it here.
	* c-decl.c (finish_decl): Call c_determine_visibility for
	functions, too.
	* flags.h (enum symbol_visibility): Sort from most to least visibility.
	* tree.h: Likewise.
	* varasm.c (default_assemble_visibility): Likewise.
	* c-common.c (handle_visibility_attribute): Complain about trying
	to give visibility to an already defined class, or trying to change
	declared visibility. Always attach the attribute.

	PR c++/26905
	PR c++/21675
	PR c++/17470
	* attribs.c (decl_attributes): Ignore type-in-place attributes
	once the type has been defined.

2006-06-29  Roger Sayle  <roger@eyesopen.com>

	PR middle-end/27428
	* c-lex.c (c_lex_with_flags) <CPP_N_INVALID>: Increment errorcount
	to indicate the cpplib has issued an error message for us.

2006-06-29  Asher Langton  <langton2@llnl.gov>

	PR target/25765
	* config/i386/i386.c (ix86_output_function_epilogue): Don't
	insert a label at the end of an function under Mach-O.

2006-06-29  Eric Christopher  <echristo@apple.com>
	    Evan Cheng  <evan.cheng@apple.com>

	* predicates.md (vector_all_ones_operand): New.
	(nonimmediate_or_sse_const_operand): Ditto.
	* config/i386/i386-protos.h (standard_sse_constant_opcode): Declare.
	* config/i386/i386.c (standard_sse_constant_opcode): Define.
	(standard_sse_mode_p): Ditto.
	(standard_sse_constant_p): Add case for -1 vector.
	(ix86_expand_vector_move): Try to use.
	* sse.md (*mov<mode>_internal): Use nonimmediate_or_sse_const_operand.
	Call standard_sse_constant_opcode.
	(*movv4sf_internal): Ditto.
	(*movv2df_internal): Ditto.

2006-06-29  Roger Sayle  <roger@eyesopen.com>

	* genpreds.c (write_match_code_switch): Correctly use XSTR instead
	of XEXP to extract the operands of a MATCH_CODE rtx.

2006-06-28  Andrew Pinski  <pinskia@gmail.com>

	* tree.c (tree_size): Do not waste tail padding in
	struct tree_string and make the size be the same as
	build_string will generate.

2006-06-28  Jason Merrill  <jason@redhat.com>

	PR c++/27768
	* tree-ssa-alias.c (compute_flow_insensitive_aliasing): Add
	may_aliases already in the tag's annotations to the bitmap.

2006-06-28  Roger Sayle  <roger@eyesopen.com>

	* genpreds.c (write_predicate_stmts) <IOR>: Add missing break.

2006-06-28  Roger Sayle  <roger@eyesopen.com>

	* genpreds.c (generate_switch_p): New function.
	(add_mode_tests): Push the new mode test down inside an AND expr
	if this allows the switch-suitable MATCH_CODE to be near the root.
	(write_match_code_switch): New function to write a MATCH_CODE as
	a switch statement.
	(write_predicate_stmts): New function to write a predicate RTX
	expression as a sequence of statements.
	(write_one_predicate_function): Use write_predicate_stmts.
	(write_tm_constrs_h): Likewise.

2006-06-26  Fred Fish  <fnf@specifix.com>

	* config/mips/t-sb1: New file.
	* config.gcc (mipsisa64sb1-*-elf*): Add mips/t-sb1 to
	tmake_file list.

2006-06-26  DJ Delorie  <dj@redhat.com>

	* config/m32c/m32c.c (m32c_print_operand): Fix sign-merging logic.

2006-06-26  Naveen H.S  <naveenh@kpitcummins.com>
	    Jayant Sonar  <jayants@kpitcummins.com>
	    Jaydeep Vipradas  <jaydeepv@kpitcummins.com>

	* config/m32c/addsub.md (addsi3, addsi3_1, addsi3_2): New.
	(subsi3, subsi3_1, subsi3_2): New.
	* config/m32c/bitops.md (andsi3, iorsi3, xorsi3): New.
	* config/m32c/mov.md (SI mov peephole): New.
	* config/m32c/m32.c (m32c_immd_dbl_mov): New.
	* config/m32c/m32c-protos.h (m32c_immd_dbl_mov): New.

2006-06-26  Olivier Hainque  <hainque@adacore.com>

	* function.c (aggregate_value_p): Honor DECL_BY_REFERENCE on
	a CALL_EXPR target function declaration.

2006-06-26  Richard Guenther  <rguenther@suse.de>

	* tree.c (build_string): Do not waste tail padding in
	struct tree_string.

2006-06-26  Richard Guenther  <rguenther@suse.de>

	* ggc-page.c (init_ggc): Add missing element to size_lookup
	table.

	Revert
	2006-06-23  Richard Guenther  <rguenther@suse.de>

	* ggc-page.c (init_ggc): Do not round up the extra_order_size_table
	sizes to MAX_ALIGNMENT.  Fix the size_lookup table to honour
	alignment requests instead.  Add verification code.
	Add struct tree_function_decl and struct tree_binfo size to
	extra_order_size_table.  Add missing element to size_lookup
	table.

2006-06-25  Eric Botcazou  <ebotcazou@adacore.com>

	PR middle-end/28151
	* fold-const.c (const_binop): Be prepared for self returning zero.
	Simplify code handling complex values.

2006-06-24  Olivier Hainque  <hainque@adacore.com>

	* gimplify.c (gimplify_scalar_mode_aggregate_compare): New function.
	(gimplify_expr): Use it for tcc_comparison of operands of non BLKmode
	aggregate types.

2006-06-24  Olivier Hainque  <hainque@adacore.com>

	* tree-ssa-loop-im.c (for_each_index): Handle ARRAY_RANGE_REF as
	ARRAY_REF, so have the callback called for the low bound expression.

2006-06-23  Janis Johnson  <janis187@us.ibm.com>

	* tree.h (DECIMAL_FLOAT_TYPE_P): New.
	* c-typeck.c (c_common_type): Disallow operations on decimal float
	types and other float types.
	* convert.c (convert_to_real): Don't ignore conversions involving
	decimal float types.

2006-06-23  Olivier Hainque  <hainque@adacore.com>

	* tree.c (max_int_size_in_bytes): New function, inspired from
	code in function.c:assign_temp.
	* tree.h (max_int_size_in_bytes): Declare.
	* function.c (assign_temp): Use it.
	* gimplify.c (create_tmp_var): Relax the assertions on the type
	properties, not mandating constant size any more.
	(force_constant_size): New static function.
	(gimple_add_tmp_var): Use it, forcing variable size to a
	constant upper bound if it is not constant on entry.

2006-06-23  Danny Smith   <dannysmith@users.sourceforge.net>

	PR target/27789
	* config/i386/winnt.c (ix86_handle_selectany_attribute): Move check
	for initialization and setting of one_only flag to ...
	(i386_pe_encode_section_info): ...here.
	(i386_pe_dllimport_p): Check for DECL_DLLIMPORT_P also.
	Recheck that the symbol has not been defined.

2006-06-23  Richard Guenther  <rguenther@suse.de>

	* ggc-page.c (init_ggc): Do not round up the extra_order_size_table
	sizes to MAX_ALIGNMENT.  Fix the size_lookup table to honour
	alignment requests instead.  Add verification code.
	Add struct tree_function_decl and struct tree_binfo size to
	extra_order_size_table.  Add missing element to size_lookup
	table.

2006-06-22  Roger Sayle  <roger@eyesopen.com>
	    John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

	PR middle-end/28131
	* expr.c (expand_expr_real_1) <VECTOR_CST>: Check whether the
	call to lang_hooks.types.type_for_mode returned NULL_TREE.

2006-06-23  Ben Elliston  <bje@au.ibm.com>

	* dfp.c (decimal_to_decnumber): Do not use decNumberNegate to
	negate dn -- manipulate it directly.

2006-06-22  Roger Sayle  <roger@eyesopen.com>
	    Steven Bosscher  <stevenb.gcc@gmail.com>

	PR target/27531
	* reload1.c (gen_reload): Call mark_jump_label on the new insns
	generated by gen_move_insn to add REG_LABEL notes if necessary.

2006-06-22  Bob Wilson  <bob.wilson@acm.org>

	* config/xtensa/lib1funcs.asm (MIN_ESA): Delete.
	(leaf_entry): Remove use of MIN_ESA.

2006-06-22  Zdenek Dvorak <dvorakz@suse.cz>

	PR rtl-optimization/28121
	* cfgexpand.c (tree_expand_cfg): Clean EDGE_EXECUTABLE flag from
	the entry edge.

2006-06-21  DJ Delorie  <dj@redhat.com>

	* config/m32c/muldiv.md (mulhisi3_i): Only use registers for dest
	(TN-16C-A156A/E).
	(mulhisi3_r): Likewise.

2006-06-21  Richard Sandiford  <richard@codesourcery.com>

	PR middle-end/28034
	* coverage.c (coverage_counter_alloc): Leave the index type
	unspecified.
	(coverage_counter_alloc): Use null arguments for operands 2 and 3
	of the ARRAY_REF.

2006-06-21  Andrew Pinski  <pinskia@physics.uc.edu>

	* doc/invoke.texi (-fopenmp) Move to "Options Controlling C Dialect"
	section from the "Options for Code Generation Conventions".

2006-06-21  Richard Henderson  <rth@redhat.com>

	PR target/26347
	PR target/27082
	* config/alpha/predicates.md (small_symbolic_operand): Deny weak
	symbols.
	(global_symbolic_operand): Allow weak symbols, even if local_p.

2006-06-21  Eric Botcazou  <ebotcazou@adacore.com>

	* tree-ssa-loop-ivopts.c (may_be_nonaddressable_p): New function.
	(find_interesting_uses_address): Punt if above function returns true.

2006-06-21  Richard Guenther  <rguenther@suse.de>

	* configure: Regenerated.

2006-06-21  Joseph Myers  <joseph@codesourcery.com>

	* config/mips/mips.c (function_arg): Where one part of a
	complex argument is in registers and the other part in the stack,
	return a REG not a PARALLEL.

2006-06-21  Mark Mitchell  <mark@codesourcery.com>

	* configure.ac: Set gcc_gxx_include_dir to $target/include/c++
	when cross-compiling.  Do not substitute libstdcxx_incdir.
	* configure: Regenerated.

2006-06-21  Jakub Jelinek  <jakub@redhat.com>

	* varasm.c (mergeable_string_section): Check for embedded NULs and
	NUL termination in the first int_size_in_bytes (TREE_TYPE (decl))
	rather than TREE_STRING_LENGTH bytes.

2006-06-21  Richard Guenther  <rguenther@suse.de>

	* ggc-page.c (extra_order_size_table): Add var_ann_d,
	tree_ssa_name, bitmap_element and phi_node with 4 arguments
	sizes.

2006-06-21  Richrad Guenther  <rguenther@suse.de>

	* tree-ssa-loop-niter.c (simplify_using_initial_conditions):
	Limit iteration over the dominators.

2006-06-20  Roger Sayle  <roger@eyesopen.com>

	* config/mips/iris6.h (LIB_SPEC): Add support for -pthread.
	(SUBTARGET_CPP_SPEC): Define _REENTERANT if -pthread specified.

2006-06-20  Richard Guenther  <rguenther@suse.de>
	Michael Matz  <matz@suse.de>

	* alloc-pool.h (free_alloc_pool_if_empty): Prototype new
	function.
	* alloc-pool.c (free_alloc_pool_if_empty): New function.
	* et-forest.h (et_free_pools): Prototype new function.
	* et-forest.c (et_free_tree_force): Free parent occurrence.
	(et_free_pools): New function.
	* dominance.c (free_dominance_info): Free et-forest alloc
	pools.

2006-06-20  Roger Sayle  <roger@eyesopen.com>

	* expr.c (expand_expr_real_1) <VECTOR_CST>: For vector constants with
	integer modes, attempt to directly construct an integer constant.

	* fold-const.c (native_encode_vector): Determine the size of each
	element from the vector type instead of the first vector element.

	* tree.c (build_constructor_single): Mark a CONSTRUCTOR as constant,
	if all of its elements/components are constant.
	(build_constructor_from_list): Likewise.

2006-06-20  Zdenek Dvorak <dvorakz@suse.cz>

	PR tree-optimization/27331
	* tree-data-ref.c (free_data_ref): New function.
	(create_data_ref): Fail if the data reference has unknown access
	function.
	(free_data_refs): Use free_data_ref.

2006-06-19  Andrew Pinski  <pinskia@gmail.com>

	PR middle-end/28075
	* tree-inline.c (setup_one_parameter): Strip useless
	type conversion before adding it to the IR.
	(declare_return_variable): Likewise.

2006-06-19  Martin Michlmayr  <tbm@cyrius.com>

	PR c/27149
	* c-common.c (c_common_truthvalue_conversion): Fix grammar in warning.

2006-06-19  Mike Stump  <mrs@apple.com>

	* tree.c (variably_modified_type_p): VM arguments don't make the
	type a VM type.

2006-06-19  Richard Guenther  <rguenther@suse.de>

	* tree-ssa-pre.c (try_combine_conversion): Strip useless
	type conversions after folding.

2006-06-19  Richard Guenther  <rguenther@suse.de>

	* ggc-page.c (extra_order_size_tab): Add entries with
	size of struct function and basic_block.
	(size_lookup): Extend to cover sizes up to 511.
	(ggc_alloc_stat): Adjust user.
	(ggc_pch_count_object): Likewise.
	(ggc_pch_alloc_object): Likewise.
	(ggc_pch_write_object): Likewise.

2006-06-19  Zdenek Dvorak <dvorakz@suse.cz>

	* tree-ssa-loop-niter.c (implies_ge_p): New function.
	(derive_constant_upper_bound): Handle OP0 - CST in unsigned types
	correctly.

2006-06-19  Denis Chertykov  <denisc@overta.ru>

	* config/avr/libgcc.S : Correct my wrong previous commit.

2006-06-19  Roger Sayle  <roger@eyesopen.com>

	PR target/27861
	* expmed.c (expand_shift): On SHIFT_COUNT_TRUNCATED targets, we may
	have stripped a SUBREG from the shift count, so we may need to
	convert_to_mode back to the type's mode before calling make_tree.
	Use new_amount instead of amount to avoid expanding a tree twice.

2006-06-19  Richard Guenther  <rguenther@suse.de>

	PR middle-end/28045
	* fold-const.c (operand_equal_p): Check if the argument types
	have the same precision before stripping NOPs.

2006-06-19  Daniel Berlin  <dberlin@dberlin.org>

	Fix PR tree-optimization/27341
	* tree-cfg.c (gimplify_val): Call mark_new_vars_to_rename on the
	statement we get.
	* tree-complex.c (pass_lower_complex): Update SMT usage.

2006-06-19  Andreas Krebbel  <krebbel1@de.ibm.com>

	* config/s390/s390.md ("doloop_si64", "doloop_si31", "doloop_di"):
	Add a new alternative to the constraint strings. Add move of
	operand 1 to 3 to the splitter definition.
	("doloop_si_long"): Second contraint alternative removed.

2006-06-08  Anatoly Sokolov <aesok@post.ru>

	* config/avr/avr.h (avr_have_movw_lpmx_p): Declare.
	(TARGET_CPU_CPP_BUILTINS): Add __AVR_HAVE_MOVW__ and
	__AVR_HAVE_LPMX__.
	(AVR_HAVE_MOVW) Define.
	(ASSEMBLER_DIALECT): Use AVR_HAVE_MOVW.
	(ASM_SPEC): Add avr25.
	(LINK_SPEC): Add avr25.
	* config/avr/avr.c (avr_have_movw_lpmx_p): Add.
	(base_arch_s): Add new member 'have_movw_lpmx'.
	(avr_arch_types): Init 'have_movw_lpmx'.
	(avr_mcu_types): Add 'avr25'. Move attiny13, attiny2313, attiny24,
	attiny44, attiny84, attiny25, attiny45, attiny85, attiny261,
	attiny461, attiny861 and at86rf401 in 'avr25' arhitecture.
	(avr_override_options): Init 'avr_have_movw_lpmx_p'.
	(output_movhi, output_movsisf, ashlsi3_out, avr_rtx_costs): Use
	AVR_HAVE_MOVW.
	(avr_file_start): Do not output '.arh' derective.
	* config/avr/libgcc.S (mov_l): Use __AVR_HAVE_MOVW__.
	(__do_copy_data): Use __AVR_HAVE_LPMX__.
	* config/avr/avr.md (mcu_enhanced): Delete.
	(mcu_have_movw): Define.
	(negsi2, extendhisi2, zero_extendhisi2): Use 'mcu_have_movw'.
	(call_insn, call_value_insn): Use 'call_insn' and __AVR_HAVE_MOVW__.
	* config/avr/t-avr(MULTILIB_OPTIONS, MULTILIB_DIRNAMES): Add avr25.
	(MULTILIB_MATCHES): Add attiny13, attiny2313, attiny24, attiny44,
	attiny84, attiny25, attiny45, attiny85, attiny261, attiny461,
	attiny861 and at86rf401 devices.

2006-06-18  Jie Zhang  <jie.zhang@analog.com>

	* config/bfin/bfin.c (MAX_LOOP_LENGTH): Define to be 2042 instead
	of 4096.

2006-06-17  Karl Berry  <karl@gnu.org>

	* doc/cpp.texi, doc/cppinternals.texi, doc/gcc.texi,
	doc/gccint.texi, doc/install.texi (@dircategory): Use
	"Software development" instead of "Programming", following
	the Free Software Directory.

2006-06-17  Alexandre Oliva  <aoliva@redhat.com>

	* config/i386/i386.c (legitimate_tls_address)
	<TARGET_GNU2_TLS>: Add tp after DTPOFF.
	* config/i386/i386.md (*tls_dynamic_gnu2_combine_32): Adjust.
	(*tls_dynamic_gnu2_combine_64): Likewise.

2006-06-16  Richard Guenther  <rguenther@suse.de>

	PR middle-end/27116
	* fold-const.c (negate_expr_p): Do not introduce undefined
	overflow in negating INTEGER_CSTs.
	(fold_negate_expr): Rename from negate_expr.  Revert last
	change for folding BIT_NOT_EXPR.  Change semantics to
	return NULL_TREE for non-simplified negations.  Do not
	strip type conversions and unify type handling.
	(negate_expr): New function, wrap around fold_negate_expr
	but ensure building a tree always.  Strip type conversions
	here, fold to result type.
	(fold_unary): Use fold_negate_expr for folding NEGATE_EXPR.

2006-06-16  Roger Sayle  <roger@eyesopen.com>

	PR middle-end/27802
	* reg-stack.c (subst_stack_regs): Handle noreturn function calls
	that (would) return their results in stack registers.

2006-06-16  Michael Matz  <matz@suse.de>
	Richard Guenther  <rguenther@suse.de>

	* fold-const.c (fold_truthop): Only return new tree node if
	we canonicalized something.

2006-06-16  Richard Guenther  <rguenther@suse.de>

	* function.h (enum function_frequency): Move declaration
	out of struct function.
	(struct function): Move bool fields and the enum to the bitfield
	section.  Reorder elements to avoid padding.  Remove unused
	fields left over from the RTL inliner removal.
	* function.c (free_after_compilation): Do not zero removed fields.
	* Makefile.in (ipa-reference.o): Add $(FUNCTION_H) dependency.
	(ipa-type-escape.o): Likewise.

2006-06-16  Richard Guenther  <rguenther@suse.de>

	* cgraph.h (struct cgraph_local_info): Turn bool elements
	into a bitfield.
	(struct cgraph_node): Likewise.
	(struct cgraph_varpool_node): Likewise.

2006-06-15  Richard Guenther  <rguenther@suse.de>

	* fold-const.c (fold_truth_not_expr): Rename from
	invert_truthvalue.  Give it fold_* semantics to avoid
	generating garbage.
	(invert_truthvalue): New function.  Wrapper around
	fold_truth_not_expr.
	(optimize_minmax_comparison): Avoid creating garbage.
	(fold_unary): Use fold_truth_not_expr for folding
	TRUTH_NOT_EXPR.
	(fold_ternary): Replace uses of invert_truthvalue with
	fold_truth_not_expr where applicable.
	* tree.h (fold_truth_not_expr): Prototype.

2006-06-16  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/27781
	* Makefile.in (ipa-pure-const.o): Add $(TARGET_H) dependency.
	* ipa-pure-const.c (target.h): Include.
	(analyze_function): Do not analyze functions that do not
	bind locally.

2006-06-15  Andrew MacLeod  <amacleod@redhat.com>

	PR middle-end/27793
	* tree-dfa.c (referenced_vars_dup_list): Remove.
	(find_referenced_vars): Remove assert.
	(referenced_var_check_and_insert): Replace dup list with assert.
	* tree-ssa.c (delete_tree_ssa): Remove dup list processing.
	* tree-flow.h (referenced_vars_dup_list): Remove extern decl.

2006-06-15  Richard Guenther  <rguenther@suse.de>

	* tree-ssa-structalias.c (alias_get_name): Avoid creating
	extra unused identifiers if not dumping.
	(create_variable_info_for): Likewise.

2006-06-15  Zdenek Dvorak <dvorakz@suse.cz>

	* tree-ssa-loop-niter.c (implies_nonnegative_p): New function.
	(derive_constant_upper_bound): Derive more precise upper bound in
	common cases.  Return type changed to double_int.
	(record_estimate): Reflect the changed return type of
	derive_constant_upper_bound.
	* double-int.c (double_int_zext, double_int_sext): Fix.

2006-06-15  Paolo Bonzini  <bonzini@gnu.org>

	* configure.ac (CFLAGS): Get them from the toplevel or from the
	configure invocation.
	* configure: Regenerate.
	* Makefile.in (CFLAGS): Substitute value provided by configure.

2006-06-14  Mark Mitchell  <mark@codesourcery.com>

	PR c++/26559
	* c-common.h (c_finish_omp_atomic): Adjust declaration.
	* c-omp.c (c_finish_omp_atomic): Return the expression to perform,
	rather than calling add_stmt on it.
	* c-parser.c (c_parser_omp_atomic): Adjust accordingly.

2006-06-14  Andreas Krebbel  <krebbel1@de.ibm.com>

	PR middle-end/27959
	* reload1.c (reload): Remove registers returned by update_eliminables
	from used_spill_regs.

2006-06-13  DJ Delorie  <dj@redhat.com>

	* config/m32c/muldiv.md (mulpsi3): Expect arbitrary constants.

2006-06-13  Carlos O'Donell  <carlos@codesourcery.com>

	* Makefile.in: Define HTMLS_BUILD, HTMLS_INSTALL,
	html__strip_dir, html__mkdir_p. Enhance install-html target.
	* configure.ac: AC_SUBST datarootdir, docdir and htmldir.
	* configure: Regenerate.

2006-06-13  Fariborz Jahanian <fjahanian@apple.com>

	* fold-const.c (fold_cond_expr_with_comparison): Check for
	Objective-C++ as language in deciding COND_EXPR transformation.

2006-06-06  J"orn Rennecke <joern.rennecke@st.com>

	PR target/28014:
	* config/sh/t-sh (LIB1ASMFUNCS): Add _udiv_qrnnd16
	* config/sh/sh.c (print_operand): Add !SHMEDIA functionality to 'M'.
	* config/sh/lib1funcs.h (SL, SL1): Define.
	* config/sh/lib1funcs.asm (__udiv_qrnnd16): New hidden function.
	* longlong.h (__sh__): Define umul_ppmm, udiv_qrnnd and sub_ddmmss.
	* config/sh/t-sh ($(T)unwind-dw2-Os-4-200.o): New rule.
	(OBJS_Os_4_200): New variable.
	($(T)libgcc-Os-4-200.a): Use it.
	* sh.md (udivsi3): For TARGET_DIVIDE_CALL_TABLE, avoid function call
	when dividing 1 and/or by 0.

2006-06-13  Roger Sayle  <roger@eyesopen.com>

	* configure.ac (HAS_MCONTEXT_T_UNDERSCORES): Include <sys/signal.h>
	before <ucontext.h> to define sigset_t required by <sys/ucontext.h>.
	* configure: Regenerate.

2006-06-13  Jie Zhang  <jie.zhang@analog.com>

	* config/bfin/bfin.c (bfin_reorg_loops): Only call recog_memoized ()
	for real instruction.

2006-06-13  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

	PR middle-end/26807
	* haifa-sched.c (check_cfg): Handle special case.

2006-06-13  Eric Botcazou  <ebotcazou@adacore.com>

	PR debug/26754
	* gimplify.c (declare_tmp_vars): Rename into declare_vars.
	Add debug_info parameter.  Chain the vars to the BLOCK instead
	of the BIND_EXPR if debug info are requested for them.
	(pop_gimplify_context): Adjust for above change.
	(gimple_add_tmp_var): Likewise.
	* tree-gimple.h (declare_tmp_vars): Rename into declare_vars.
	Add bool parameter.
	* tree-nested.c (convert_nonlocal_reference): Adjust for above change.
	(convert_local_reference): Likewise.
	(get_local_debug_decl): Set DECL_IGNORED_P on the original variable.
	(finalize_nesting_tree_1): Request that debug info be emitted
	for debug_var_chain.

2006-06-13  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

	* haifa-sched.c (unlink_other_notes, unlink_line_notes): Fix the patch
	for PR target/27863.

2006-06-13  Richard Guenther  <rguenther@suse.de>

	PR middle-end/27536
	* except.c (output_ttype): Expand type with EXPAND_INITIALIZER.

2006-06-13  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/27830
	* tree-inline.c (copy_body_r): For copying the operand
	of an ADDR_EXPR make sure to fold &* afterwards.

2006-06-12  Eric Botcazou  <ebotcazou@adacore.com>

	* gimplify.c (gimplify_expr): Treat VIEW_CONVERT_EXPR like other
	lvalues in the fb_none case with side-effects.

2006-06-12  Kazu Hirata  <kazu@codesourcery.com>

	* tree-flow.h: Remove the prototype for
	compute_phi_arg_on_exit.
	* tree-ssa-loop-ivopts.c (protect_loop_closed_ssa_form_use,
	protect_loop_closed_ssa_form, compute_phi_arg_on_exit):
	Remove.

2006-06-12  Mark Shinwell  <shinwell@codesourcery.com>

	* builtins.c (expand_builtin_return_addr): Only use
	frame_pointer_rtx when count == 0 and we are expanding
	__builtin_return_address.

2006-06-12  Fred Fish  <fnf@specifix.com>

	* config/mips/mips.c (mips_file_start): Create special section
	".gcc_compiled_longXX" for o64 ABI as well as EABI.

2006-06-11  Eric Christopher  <echristo@apple.com>

	PR middle-end/27948
	* stor-layout.c (place_field): Remove check for
	remaining_in_alignment when aligning at the end of a run.

2006-06-11  Eric Christopher  <echristo@apple.com>

	PR 27542
	* doc/extend.texi (Structure-Packing Pragmas): Document ms_struct
	pragma.

2006-06-11  Roger Sayle  <roger@eyesopen.com>

	PR target/27858
	Revert incorrect fix for PR target/27158
	2006-05-08  Roger Sayle  <roger@eyesopen.com>
	* reload.c (find_reloads_toplev): Only return the simplified SUBREG
	of a reg_equiv_constant if the result is a legitimate constant.

2006-06-11  Roger Sayle  <roger@eyesopen.com>

	PR target/27158
	* config/rs6000/rs6000.c (const_vector_elt_as_int): New function to
	extract a CONST_VECTOR element and interpret it as an integer.
	(vspltis_constant): Use const_vector_elt_as_int instead of the
	macro CONST_VECTOR_ELT in order to handle FP vector modes.
	* config/rs6000/predicates.md (easy_vector_const): Consider
	floating point ALTIVEC_VECTOR_MODEs via easy_altivec_constant.

2006-06-11  Kaz Kojima  <kkojima@gcc.gnu.org>

	PR middle-end/27942
	* stor-layout.c (update_alignment_for_field): Don't add extra
	alignment for packed non-bitfield fields in ms_bitfield_layout_p
	code.

2006-06-09  Ralf Corsepius  <ralf.corsepius@rtems.org>

	* config/mips/t-rtems: Add EL/EB multilib variants.

2006-06-09  Mike Stump  <mrs@apple.com>

	* c-typeck.c (c_begin_vm_scope): Fix file_scope processing.

2006-06-09  David Daney  <ddaney@avtrex.com>

	* doc/install.texi: Add binutils version recommendation for mips-*-*.

2006-06-09  Andreas Krebbel  <krebbel1@de.ibm.com>

	* reload.c (find_reloads): Unset force_reload for 'X' constraint.

2006-06-09  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/26998
	* tree-vrp.c (extract_range_from_unary_expr): For NEGATE_EXPR
	of signed types, only TYPE_MIN_VALUE is special, but for both,
	minimum and maximum value.  Likewise VR_ANTI_RANGE is special
	in this case, as is -fwrapv.

2006-06-08  Mike Stump  <mrs@apple.com>

	PR target/26427
	* config/darwin.c (darwin_asm_output_anchor): Disable
	-fsection-anchors on darwin for now.
	* config/darwin.h (TARGET_ASM_OUTPUT_ANCHOR): Likewise.
	* rs6000/rs6000.c (optimization_options): Likewise.

2006-06-08  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

	PR target/27421
	* config/i386/i386.c (classify_argument): Skip fields with invalid
	types in unions.

2006-06-08  Steven Bosscher  <steven@gcc.gnu.org>

	* cse.c (flush_hash_table): Use VOIDmode to invalidate a REG.
	(cse_insn): Likewise for the stack_pointer_rtx.

2006-06-08  Roger Sayle  <roger@eyesopen.com>

	* tree-ssa-dom.c (record_conditions): Only record "unordered"
	conditions from floating point comparisons.

2006-06-08  Paolo Bonzini  <bonzini@gnu.org>

	PR middle-end/27733
	* expmed.c (struct alg_hash_entry): Fix type of field T
	to match synth_mult argument.
	(NUM_ALG_HASH_ENTRIES): Make it bigger for 64-bit HOST_WIDE_INT.

2006-06-08  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

	PR target/27863
	* haifa-sched.c (unlink_other_notes, unlink_line_notes): Update basic
	block boundaries.

2006-06-08  Richard Guenther  <rguenther@suse.de>

	PR middle-end/27116
	* fold-const.c (negate_expr_p): We can negate BIT_NOT_EXPR
	only, if overflow is defined and not trapping.
	(negate_expr): Likewise.

2006-06-07  Zdenek Dvorak <dvorakz@suse.cz>

	PR tree-optimization/27872
	* tree-ssa-loop-manip.c (tree_unroll_loop): Set EDGE_IRREDUCIBLE_LOOP
	flag on the new exit edge of the unrolled loop.

2006-06-07  Zdenek Dvorak <dvorakz@suse.cz>

	PR rtl-optimization/26449
	* loop-invariant.c (move_invariant_reg): Fail if force_operand fails.

2006-06-07  Andrew MacLeod  <amacleod@redhat.com>

	PR middle-end/27793
	* tree-dfa.c (referenced_vars_dup_list): New.  List of duplicate
	referenced_variables with matching DECL_UID's.
	(find_referenced_vars): Make sure duplicate list is empty to start.
	(referenced_var_p): Remove.
	(referenced_var_check_and_insert): Renamed from referenced_var_insert.
	Check if var is in the list, and add if needed.  Update the duplicate
	list if a different var is in the list with the same DECL_UID.
	(add_referenced_var): Call routine to check and insert.
	* tree-ssa.c (delete_tree_ssa): Clear var_ann's on duplicates.
	* tree-flow.h (referenced_vars_dup_list): External declaration.

2006-06-07  Fred Fish  <fnf@specifix.com>

	* config/mips/t-elf (MULTILIB_MATCHES): Combine two entries
	into single entry.

2006-06-07  Paolo Bonzini  <bonzini@gnu.org>

	PR target/27390
	* reg-stack.c (subst_stack_regs_pat): Reorder resetting of
	the imaginary and real parts of a clobbered register.
	Emit insn to set the imaginary part.

2006-06-06  Peter Lemieszewski  <lemie@us.ibm.com>

	* config/s390/t-tpf (LIB2ADDEH): Include unwind-dw2-fde-glibc.c
	in lieu of unwind-dw2-fde.c.

2006-06-06  Francois-Xavier Coudert  <coudert@clipper.ens.fr>

	* config/i386/mingw32.h (GOMP_SELF_SPECS): Define.

2006-06-06  Ulrich Weigand  <uweigand@de.ibm.com>

	PR target/27842
	* config/rs6000/altivec.md (UNSPEC_VSLW): Remove.
	("altivec_vspltisw_v4sf", "altivec_vslw_v4sf"): Remove.
	("mulv4sf3", "absv4sf3", "negv4sf3"): Adapt users to use
	V4SImode temporaries and operations instead.

2006-06-06  Joseph S. Myers  <joseph@codesourcery.com>

	* config/mips/t-linux64 (tp-bit.c): Append to tp-bit.c, not
	dp-bit.c.

2006-06-06  Mike Stump  <mrs@apple.com>

	* Makefile.in: Rename to htmldir to build_htmldir to avoid
	installing during build.

2006-06-06  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

	* params.def (PARAM_MAX_SCHED_EXTEND_REGIONS_ITERS): Change default
	value to 0.
	* doc/invoke.texi (max-sched-extend-regions-iters): Document.
	* config/ia64/ia64.c (params.h): New header.
	(ia64_optimization_options): New function to adjust parameters.
	* config/ia64/ia64-protos.h (ia64_optimization_options): New prototype.
	* config/ia64/ia64.h (OPTIMIZATION_OPTIONS): New macro.
	* config/ia64/t-ia64 (ia64.o): Add dependence from params.h .

2006-06-05  Kazu Hirata  <kazu@codesourcery.com>

	* stor-layout.c (debug_rli): Fix a typo in a debug message.

2006-06-05  Steve Ellcey  <sje@cup.hp.com>

	PR target/27051
	* config/ia64/ia64.c (ia64_select_rtx_section): Check TARGET_NO_SDATA.

2006-06-05  Dorit Nuzman  <dorit@il.ibm.com>
	    Victor Kaplansky  <victork@il.ibm.com>

	PR tree-optimization/26360
	* tree-vectorizer.c (destroy_loop_vec_info): Remove (dead) pattern
	stmts.

2006-06-04  Roger Sayle  <roger@eyesopen.com>
	    Andrew Pinski  <pinskia@physics.uc.edu>

	PR middle-end/27382
	* c-common.c (c_common_truthvalue_conversion): Explicitly check
	for LABEL_DECL before calling DECL_WEAK.

	PR c/27150
	* c-typeck.c (build_binary_op): Likewise, explicitly check for
	LABEL_DECL and PARM_DECL.

2006-06-05  Joseph S. Myers  <joseph@codesourcery.com>

	PR c/25161
	PR c/27020
	* c-decl.c (grokdeclarator): Disallow variably modified types at
	file scope.  Avoid marking shared array type of constant size as
	VLA.

2006-06-04  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

	PR c++/27601
	* c-common.c (fold_offsetof_1): Handle static members.

2006-06-04 Eric Christopher <echristo@apple.com>

	* stor-layout.c (start_record_layout): Initialize remaining_in_alignment.
	(debug_rli): Output value for remaining_in_alignment.
	(update_alignment_for_field): Unconditionalize
	ms_bitfield_layout_p code. Handle non-bitfield fields. Remove
	extra alignment code.
	(place_field): Don't realign if ms_bitfield_layout_p. Unconditionalize
	ms_bitfield_layout_p code. Rewrite handling of structure fields.
	* tree.h (record_layout_info_s): Remove prev_packed.
	* doc/extend.texi (ms_struct): Add documentation of format.

2006-06-04  Mark Shinwell  <shinwell@codesourcery.com>

	* tree.h: Declare folding_initializer.
	* builtins.c (fold_builtin_constant_p): Give definite answer
	if folding inside an initializer.
	* fold-const.c: Define folding_initializer.
	(START_FOLD_INIT): Save and then set folding_initializer.
	(END_FOLD_INIT): Restore folding_initializer.

2006-06-04  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/27039
	* fold-const.c (fold_comparison): Handle pointer comparison
	again for all comparison codes.  Compare offsets in signed
	size type.
	(fold_binary): Move code from here.

2006-06-03  Roger Sayle  <roger@eyesopen.com>

	PR target/26223
	* config/i386/i386.c (construct_container): Split static issued_error
	flag into issued_sse_arg_error, issued_sse_ret_error and
	issued_x87_ret_error.  Issue a daignostic if the x86-64 ABI
	requires the use of x87 registers and the user explicitly
	specified the -mno-80387 command line option.

2006-06-02  Geoffrey Keating  <geoffk@apple.com>

	* config/rs6000/host-darwin.c (sigaltstack): Protect prototype with
	HAVE_DECL_SIGALTSTACK.
	(MC_FLD): New.
	(segv_handler): Use MC_FLD.
	* configure.ac: Check for a sigaltstack declaration.
	Compute HAS_MCONTEXT_T_UNDERSCORES on Darwin.
	* configure: Regenerate.
	* config.in: Regenerate.

2006-06-03  J"orn Rennecke <joern.rennecke@st.com>

	PR other/27850
	* Makefile.in (stmp-fixinc): Fix typo.

2006-06-02  Roger Sayle  <roger@eyesopen.com>

	* fold-const.c (fold_unary) <CONJ_EXPR>: Ensure folded expressions
	are type correct.  Clean-up.
	<REALPART_EXPR>: Likewise.  Optimize creal(~z) as creal(z).
	<IMAGPART_EXPR>: Likewise.  Optimize cimag(~z) as -cimag(z).

2006-06-01  DJ Delorie  <dj@redhat.com>

	* config/v850/v850.h (ASM_OUTPUT_ADDR_DIFF_ELT): Disabled the
	shift, as we've disabled the "switch" insn that needs it.

2006-06-01  Per Bothner  <bothner@bothner.com>

	Suppress extra '#1 <built-in> or '#1 <command line>' on -dD output.
	* c-opts.c (finish_options): Use internal line 0 for <command-line>.
	* c-ppoutput.c (cb_define): Don't increment line 0.

2006-06-01  Pete Steinmetz  <steinmtz@us.ibm.com>

	* doc/invoke.texi: Add cpu_type power6.
	* config.gcc: Add cpu_type power6.
	* config/rs6000/rs6000.c (rs6000_override_options): Alias power6
	to power5+ with Altivec.
	* config/rs6000/aix52.h (ASM_CPU_SPEC): Add power6.
	* config/rs6000/rs6000.h (ASM_CPU_SPEC): Add power6.

2006-05-30  Anatoly Sokolov <aesok@post.ru>

	* config/avr/avr.h (SET_ASM_OP): Define.

2006-06-01  Kazu Hirata  <kazu@codesourcery.com>

	* config/bfin/bfin.c: Fix comment typos.

2006-06-01  Paolo Bonzini  <bonzini@gnu.org>

	PR 25453
	* doc/install.texi: Document --enable-bootstrap and
	--disable-bootstrap.

2006-06-01  Paolo Bonzini  <bonzini@gnu.org>

	* doc/install.texi: Document that InfoZIP can replace jar.

2006-05-31  Roger Sayle  <roger@eyesopen.com>

	* config/i386/i386.c (ix86_expand_fp_absneg_operator): When SSE
	isn't available, directly generate the simpler x87 patterns without
	the (use (const_int 0)).
	* config/i386/i386.md (*negsf2_1): Enable pre-reload if the SSE
	implementation isn't available.
	(*negdf2_1): Likewise.
	(*negxf2_1): XF mode negation is always done using the x87.
	(*abssf2_1, *absdf2_1, *absxf2_1): Likewise^3 for fabs.

2006-05-31  Roger Sayle  <roger@eyesopen.com>

	* builtins.c (fold_builtin_cabs): Delete prototype.  Require an
	additional FNDECL argument.  Optimize cabs(-z) and cabs(~z) as
	cabs(z).
	(fold_builtin_decl) <BUILT_IN_CABS>: Update fold_builtin_cabs call.

2006-05-31  Jie Zhang  <jie.zhang@analog.com>

	* config/bfin/bfin-protos.h (bfin_hardware_loop): Declare.
	* config/bfin/bfin.c (basic-block.h): Include.
	(struct machine_function): New.
	(bfin_init_machine_status): New.
	(override_options): Initialize init_machine_status.
	(bfin_hardware_loop): New.
	(MAX_LOOP_DEPTH, MAX_LOOP_LENGTH): Define.
	(DEF_VEC_P (loop_info)): New.
	(DEF_VEC_ALLOC_P (loop_info,heap)): New.
	(struct loop_info): New.
	(loop_info): New typedef.
	(struct loop_work): New.
	(loop_work): New typedef.
	(DEF_VEC_O (loop_work)): New.
	(DEF_VEC_ALLOC_O (loop_work,heap)): New.
	(bfin_dump_loops): New.
	(bfin_bb_in_loop): New.
	(bfin_scan_loop): New.
	(bfin_optimize_loop): New.
	(bfin_reorg_loops): New.
	(bfin_reorg): Use bfin_reorg_loops.
	* config/bfin/bfin.h (FIRST_PSEUDO_REGISTER): Adjust for adding
	loop registers.
	(I_REGNO_P): Simplify.
	(DP_REGNO_P, DPREG_P): New macros.
	(REGISTER_NAMES, FIXED_REGISTERS, CALL_USED_REGISTERS,
	REG_ALLOC_ORDER): Add LT0, LT1, LC0, LC1, LB0, LB1.
	(enum reg_class, REG_CLASS_NAMES, REG_CLASS_CONTENTS):
	Add LT_REGS, LC_REGS, LB_REGS.
	(REG_CLASS_FROM_LETTER): Add 't' for LT_REGS, 'k' for LC_REGS,
	'l' for LB_REGS.
	(REGNO_REG_CLASS): Deal with loop registers.
	* config/bfin/bfin.md: Add comment for 't', 'k', 'l' constraint
	letters.
	(REG_LT0, REG_LT1, REG_LC0, REG_LC1, REG_LB0, REG_LB1):
	New constants for loop registers.
	(UNSPEC_LSETUP_END): New.
	(seq_insns): New define_attr. Set it for appropriate insns.
	(movsi_insn): Add alternatives for move from/to
	loop count registers.
	(doloop_end): New define_expand.
	(loop_end): New define_insn.
	(define_split for bad doloop_end): New.
	(lsetup_with_autoinit): New define_insn.
	(lsetup_without_autoinit): New define_insn.
	(rep_movsi, rep_movhi): Clobber LT1, LC1, LB1.
	* config/bfin/predicates.md (lc_register_operand): New.
	(lt_register_operand): New.
	(lb_register_operand): New.
	(nondp_register_operand): New.
	(nondp_reg_or_memory_operand): New.
	* doc/md.texi: Document Blackfin new 't', 'k', 'l' constraint letters.

2006-05-31  Jie Zhang  <jie.zhang@analog.com>

	* config/bfin/bfin.c (bfin_delegitimize_address): New.
	(TARGET_DELEGITIMIZE_ADDRESS): Define.

2006-05-31  Daniel Jacobowitz  <dan@codesourcery.com>

	* Makefile.in (CATALOGS): Add po/ prefix.
	* configure: Regenerated.

2006-05-31  Richard Earnshaw  <richard.earnshaw@arm.com>

	PR target/27829
	* arm.c (arm_print_operand case 'S'): Validate that the operand is
	a shift operand before calling shift_op.  Avoid redundant call of
	shift_op.

2006-05-30  Naveen.H.S  <naveenh@kpitcummins.com>
	    DJ Delorie  <dj@redhat.com>

	* config/m32c/m32c.c (m32c_expand_insv): Check that the value
	we're inserting is a singlt-bit constant.

2006-05-30  Roger Sayle  <roger@eyesopen.com>

	* simplify-rtx.c (simplify_binary_operation_1) <LSHIFTRT>: Cast
	width to HOST_WIDE_INT to avoid comparison warnings on some targets.

2006-05-30  Roger Sayle  <roger@eyesopen.com>

	PR tree-optimization/23452
	* fold-const.c (fold_mult_zconjz): New subroutine of fold_binary,
	to optimize z * conj(z) as realpart(z)^2 + imagpart(z)^2.
	(fold_binary) <MULT_EXPR>: Call fold_mult_zconjz for integral
	complex values and with -ffast-math for FP complex values.

2006-05-30  Kazu Hirata  <kazu@codesourcery.com>

	* c-common.h: Remove the prototype for yyparse.
	* rtl.h: Remove the prototype for init_loop.

2006-05-30  Andreas Krebbel  <krebbel1@de.ibm.com>

	* cse.c (validate_canon_reg, cse_insn): Don't change insns without
	calling recog.

2006-05-30  Roger Sayle  <roger@eyesopen.com>

	* simplify-rtx.c (simplify_binary_operation): Unfactor the shift
	and rotate cases.
	<LSHIFTRT>: Optimize (lshiftrt (clz X) C) as (eq X 0) where C is
	log2(GET_MODE_BITSIZE(X)) on targets with the appropriate semantics.

2006-05-30  Dirk Mueller  <dmueller@suse.de>

	PR c/27273
	* c-common.c (convert_and_check): Only track TREE_CONSTANT_OVERFLOW
	for CONSTANT_CLASS_P expresisons.

2006-05-30  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

	PR c/27718
	* c-typeck.c (c_expr_sizeof_type): Handle invalid types.

2006-05-30  Zdenek Dvorak <dvorakz@suse.cz>

	PR tree-optimization/27779
	* tree-data-ref.c (analyze_siv_subscript_cst_affine): Use
	initial_condition instead of CHREC_LEFT.

2006-05-30  Steven Bosscher  <stevenb.gcc@gmail.com>

	* config/m32r/m32r.h (DBX_OUTPUT_SOURCE_LINE): Fix type of begin_label.
	* config/m32r/initfini.c (__do_global_dtors, __do_global_ctors):
	Make prototypes ISO C90.

2006-05-30  Mircea Namolaru  <namolaru@il.ibm.com>
	    Leehod Baruch    <leehod.baruch@weizmann.ac.il>

	* see.c (see_analyze_one_def): Correct check.
	(see_get_extension_data): Check if extension is parallel.
	(see_get_extension_reg): Likewise.

2006-05-30  Uros Bizjak  <uros@kss-loka.si>

	PR target/27790
	* config/i386/i386.c (ix86_expand_int_vcond): Force cop0
	into register for (code == GTU).

2006-05-29  Roger Sayle  <roger@eyesopen.com>

	PR tree-optimization/24964
	* simplify-rtx.c (simplify_binary_operation_1): Add function comment.
	<MULT>: Minor clean-up.  Don't convert x*-1.0 into -x if we honor
	signaling NaNs.  Optimize -x*-x as x*x for all float modes, and
	abs(x)*abs(x) as x*x for scalar floating point modes.

2006-05-29  Sebastian Pop  <pop@cri.ensmp.fr>

	PR middle-end/27745
	* lambda-code.c (perfect_nestify): Don't copy statements
	in the inner loop: move them to the inner loop header.

2006-05-29  Diego Novillo  <dnovillo@redhat.com>

	PR 26237
	* c-tree.texi: Document OpenMP directives and clauses.

2006-05-29  Kazu Hirata  <kazu@codesourcery.com>

	* varasm.c (globalize_decl): Fix indentation.

2006-05-29  Diego Novillo  <dnovillo@redhat.com>

	PR 26242
	* doc/passes.texi: Add documentation for pass_vrp, pass_ipa_pta,
	pass_fre, pass_store_ccp, pass_copy_prop,
	pass_store_copy_prop, pass_merge_phi, pass_nrv,
	pass_return_slot, pass_object_size, pass_lim,
	pass_linear_transform, pass_empty_loop, pass_complete_unroll,
	pass_loop_prefetch and pass_stdarg.

2005-05-29  Bernd Schmidt  <bernd.schmidt@analog.com>

	* config/bfin/bfin.opt (mfdpic): New option.
	* config/bfin/t-bfin-elf (EXTRA_PARTS): Add crtbeginS.o and crtendS.o.
	(EXTRA_MULTILIB_PARTS): Likewise.
	(CRTSTUFF_T_CFLAGS, TARGET_LIBGCC2_CFLAGS): Use -fpic.
	(MULTILIB_OPTIONS, MULTILIB_EXCEPTIONS): Build one extra -mfdpic
	multilib.
	* config/bfin/elf.h (STARTFILE_SPEC): Don't link in crt0.o if -shared.
	(CRT_CALL_STATIC_FUNCTION): New.
	* config/bfin/uclinux.h (STARTFILE_SPEC): Don't link in crt0.o if
	-shared.
	(CRT_CALL_STATIC_FUNCTION): New.
	* config/bfin/bfin.c (legitimize_pic_address): Now static.  Handle
	FD-PIC moves.
	(n_pregs_to_save): PIC register doesn't need to be saved with FD-PIC.
	(print_operand): Handle UNSPEC_MOVE_FDPIC and UNSPEC_FUNCDESC_GOT17M4.
	(initialize_trampoline): Changed to handle FD-PIC code generation.
	(expand_move): If TARGET_FDPIC, use emit_pic_move as needed.
	(bfin_expand_call): Generate FD-PIC calls if TARGET_FDPIC.
	(override_options): Disallow -mid-shared-library -mfdpic combination.
	Can't do unaligned ops if FD-PIC.
	Turn off flag_pic if trying to generate non-id-shared-library
	non-fdpic code, since it's not supported.
	(bfin_assemble_integer): New function.
	(TARGET_ASM_INTEGER): Define.
	* config/bfin/crti.s (__init, __fini): Save P3 on the stack if
	__BFIN_FDPIC__.
	* config/bfin/crtn.s: Restore them.
	* config/bfin/bfin.h (TARGET_CPU_CPP_BUILTINS): Define __BFIN_FDPIC__
	if TARGET_FDPIC.
	(DRIVER_SELF_SPECS, SUBTARGET_DRIVER_SELF_SPECS,
	LINK_GCC_C_SEQUENCE_SPEC, ASM_SPEC, LINK_SPEC): New macros.
	(FDPIC_FPTR_REGNO, FDPIC_REGNO, OUR_FDPIC_REG): New macros.
	(TRAMPOLINE_SIZE, TRAMPOLINE_TEMPLATE): Adjust for FD-PIC.
	(CONDITIONAL_REGISTER_USAGE): If TARGET_FDPIC, FDPIC_REGNO is
	call-used.
	(enum reg_class, REG_CLASS_CONTENTS, REG_CLASS_NAMES): Add
	FDPIC_REGS and FDPIC_FPTR_REGS.
	(REG_CLASS_FROM_LETTER): Use 'Z' and 'Y' for them.
	* config/bfin/bfin.md (UNSPEC_MOVE_FDPIC, UNSPEC_FUNCDESC_GOT17M4,
	UNSPEC_VOLATILE_LOAD_FUNCDESC): New constants.
	(load_funcdescsi): New pattern.
	(call_symbol_fdpic, sibcall_symbol_fdpic, call_value_symbol_fdpic,
	sibcall_value_symbol_fdpic, call_insn_fdpic, sibcall_insn_fdpic,
	call_value_insn_fdpic, sibcall_value_insn_fdpic): New patterns.

2006-05-29  Kazu Hirata  <kazu@codesourcery.com>

	* gcse.c, rtlanal.c: Remove obsolete comments associated with
	loop.c.

	* config/bfin/bfin.h (PARM_BOUNDRY, STACK_BOUNDRY): Remove.

	* tree-flow.h: Remove the prototype for add_type_alias.
	* tree-ssa-alias.c (add_type_alias): Remove.

2006-05-28  Kazu Hirata  <kazu@codesourcery.com>

	* cfgcleanup.c, cfgexpand.c, cgraphunit.c, config/arm/arm.c,
	config/fr30/fr30.md, config/i386/i386-interix.h,
	config/i386/i386.c, config/i386/i386.md, config/sh/superh.h,
	config/sh/superh64.h, config/v850/v850.c, df-core.c,
	df-problems.c, df.h, except.c, final.c, haifa-sched.c,
	lambda-code.c, libgcc2.h, omp-low.c, optabs.c, predict.c,
	reload.c, tree-flow.h, tree-outof-ssa.c, tree-ssa-dce.c,
	tree-ssa-pre.c, tree-vect-transform.c: Fix comment typos.
	Follow spelling conventions.
	* doc/invoke.texi, doc/rtl.texi, doc/tm.texi: Fix typos.
	Follow spelling conventions.

2006-05-27  Richard Guenther  <rguenther@suse.de>

	PR middle-end/27773
	* fold-const.c (fold_plusminus_mult_expr): Use fold_convert
	to produce a constant of value 1 of generic type.

2006-05-27  Dirk Mueller  <dmueller@suse.de>

	* cgraphunit.c (decide_is_function_needed): Fix wrong
	PR reference.

2006-05-26  Ulrich Weigand  <uweigand@de.ibm.com>

	PR rtl-optimization/27661
	* reload.c (find_reloads): When reloading a VOIDmode constant
	as address due to an EXTRA_MEMORY_CONSTRAINT or 'o' constraint,
	use Pmode as mode of the reload register.

2006-05-26  Eric Botcazou  <ebotcazou@adacore.com>

	* doc/invoke.texi (Optimize Options): Document that -funit-at-a-time
	is enabled at -O and above.

2006-05-26  Steven Bosscher  <steven@gcc.gnu.org>

	PR target/27571
	* config/alpha/alpha.c (alpha_does_function_need_gp): Skip jump
	table data.

2006-05-25  Mark Mitchell  <mark@codesourcery.com>

	PR c++/20103
	* gimplify.c (gimplify_decl_expr): Do not call gimple_add_tmp_var
	for anonymous variables explicitly declared by front ends.

2006-05-25  Eric Botcazou  <ebotcazou@adacore.com>

	* tree-ssa-structalias.h (PTR_IS_REF_ALL): New macro.
	(struct alias_info): Add new field ref_all_symbol_mem_tag.
	* tree-ssa-alias.c (compute_may_aliases): If the program contains
	ref-all pointers, run a finalization pass for them.
	(compute_flow_insensitive_aliasing): Skip ref-all pointers.
	(finalize_ref_all_pointers): New function.
	(is_escape_site): Return ESCAPE_BAD_CAST for conversion from a
	regular pointer type to a ref-all pointer type.
	(get_tmt_for): Return the special memory tag for ref-all pointers.

2006-05-25  Richard Guenther  <rguenther@suse.de>

	PR middle-end/27743
	* fold-const.c (fold_binary): Do not look at the stripped
	op0 for (a OP c1) OP c2 to a OP (c1+c2) shift optimization.

2006-05-25  Eric Botcazou  <ebotcazou@adacore.com>

	* tree-vrp.c (extract_range_from_assert): Set the range to VARYING
	for LT and GT if the computed range is effectively empty.

2006-05-24  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

	PR target/27627
	* pa/pa-modes.def: Use mips_single_format, mips_double_format and
	mips_quad_format formats instead of ieee_single_format,
	ieee_double_format and ieee_quad_format formats, respectively.

2006-05-24  Zdenek Dvorak <dvorakz@suse.cz>

	PR tree-optimization/27639
	PR tree-optimization/26719
	* tree-vrp.c (adjust_range_with_scev): Use scev_direction and adjust
	call to scev_probably_wraps_p.
	* tree-ssa-loop-niter.c (compare_trees, convert_step_widening,
	used_in_pointer_arithmetic_p, convert_step): Removed.
	(nowrap_type_p): New function.
	(scev_probably_wraps_p): Rewritten.
	* tree-scalar-evolution.c (instantiate_parameters_1): Do not call
	chrec_convert if chrec_convert_aggressive might have been used.
	* tree-chrec.c (convert_affine_scev, chrec_convert_1,
	scev_direction): New functions.
	(chrec_convert): Changed to a wrapper over chrec_convert_1.
	* tree-ssa-loop-ivopts.c (idx_find_step): Use convert_affine_scev
	instead of convert_step.
	* tree-flow.h (scev_probably_wraps_p): Declaration changed.
	(convert_step): Declaration removed.
	(convert_affine_scev, nowrap_type_p, scev_direction): Declare.

2006-05-23  Kenneth Zadeck <zadeck@naturalbridge.com>

	* df-core.c: Added to header comments.
	* df.h (df_ru_bb_info, df_rd_bb_info, df_lr_bb_info,
	df_ur_bb_info, df_urec_bb_info): Added comments.
	* df-problems (df_ref_bitmap, ru, rd, lr, ur,
	urec, ri problems): Fixed header comments.
	(df_ru_transfer_function): Fixed in-out set dyslexia when copying
	code from df_rd_transfer_function.

2006-05-23  Richard Sandiford  <richard@codesourcery.com>

	* libgcc2.c (LIBGCC2_MAX_UNITS_PER_WORD): New macro.
	(LIBGCC2_UNITS_PER_WORD): Use LIBGCC2_MAX_UNITS_PER_WORD rather than
	MIN_UNITS_PER_WORD to set the default.  Also use it in the guard.

2006-05-23  Joseph Myers  <joseph@codesourcery.com>

	* expr.c (undefined_operand_subword_p): New.
	(emit_move_multi_word): Do not generate move from undefined bits
	of a paradoxical subreg.

2006-05-23  Richard Sandiford  <richard@codesourcery.com>

	PR rtl-optimization/27736
	* combine.c (replaced_rhs_value): New variable.
	(combine_instructions): Set it.
	(distribute_notes): When distributing a note in replaced_rhs_insn,
	check whether the value was used in replaced_rhs_value.

2006-05-23  Andrew MacLeod  <amacleod@redhat.com>

	PR c++/26757
	* tree-ssa-loop-im.c (determine_invariantness_stmt): Use
	add_referenced_var instead of add_referenced_tmp_var.
	* tree-complex.c (create_one_component_var): Use add_referenced_var.
	* tree-ssa-loop-manip.c (create_iv, tree_unroll_loop): Use
	add_referenced_var.
	* tree-tailcall.c (adjust_accumulator_values, adjust_return_value,
	tree_optimize_tail_calls_1): Use add_referenced_var.
	* tree-ssa-loop-ivopts.c (create_new_iv): Use add_referenced_var.
	* tree-ssa-alias.c (create_memory_tag, create_global_var, create_sft):
	Use add_referenced_var.
	* tree-if-conv.c (ifc_temp_var): Use add_referenced_var.
	* gimplify.c (force_gimple_operand): Use add_referenced_var.
	* tree-ssa-phiopt.c (conditional_replacement, abs_replacement):
	Use add_referenced_var.
	* tree-dfa.c (struct walk_state): Remove.
	(find_referenced_vars): Remove walk state and vars_found hash table.
	(make_rename_temp): Use add_referenced_var.
	(find_vars_r): Pass less parameters to add_referenced_var.
	(referenced_var_p): New.  Is var in referenced_var hash table.
	(referenced_var_insert): Assert var isn't already in hash table.
	(add_referenced_var): Don't need walk_state parameter.  Add var if it
	isn't already in the hash table.
	(add_referenced_tmp_var): Remove.
	(find_new_referenced_vars_1): Use add_referenced_var.
	* tree-ssa-pre.c (create_expression_by_pieces,
	insert_into_preds_of_block, insert_extra_phis, realify_fake_stores):
	Use add_referenced_var.
	* tree-vect-patterns.c (vect_pattern_recog_1): Use add_referenced_var.
	* lambda-code.c (lbv_to_gcc_expression, lle_to_gcc_expression,
	lambda_loopnest_to_gcc_loopnest, perfect_nestify): Use
	add_referenced_var.
	* tree-vect-transform.c (vect_create_addr_base_for_vector_ref,
	vect_create_data_ref_ptr, vect_create_destination_var,
	vect_init_vector, vect_build_loop_niters,
	vect_generate_tmps_on_preheader, vect_update_ivs_after_vectorizer,
	vect_gen_niters_for_prolog_loop, vect_create_cond_for_align_checks):
	Use add_referenced_var.
	* tree-outof-ssa.c (create_temp): Use add_referenced_var.
	* tree-flow.h (add_referenced_tmp_var): Remove prototype
	(add_referenced_var): Add prototype.
	* tree-ssa-structalias.c (get_constraint_for,
	intra_create_variable_infos): Use add_referenced_var.

2006-05-23  Alexandre Oliva  <aoliva@redhat.com>

	* simplify-rtx.c (simplify_subreg): Adjust REG_OFFSET for
	big-endian paradoxical subregs.
	* var-tracking.c (struct micro_operation_def): Document that,
	for modify micro operations, insn is the subsequent instruction.
	(var_reg_delete_and_set, var_mem_delete_and_set): Split into...
	(var_reg_set, var_mem_set): ... new functions.
	(add_stores): Record subsequent insn.
	(compute_bb_dataflow): Use new functions for MO_USE.
	(emit_notes_in_bb): Use new functions for MO_USE.  Emit use
	notes after the insn, and modify notes before the insn known
	to be the subsequent one.
	(vt_initialize): Invert sorting of MO_CLOBBERs and MO_SETs.

2006-05-23  Kazu Hirata  <kazu@codesourcery.com>

	PR target/27696
	* config/i386/i386.c (ix86_expand_builtin): Use
	gen_sse3_monitor64 for TARGET_64BIT.

2006-05-22  Kenneth Zadeck <zadeck@naturalbridge.com>

	PR rtl-optimization/26375
	PR rtl-optimization/26855
	* df-problems (df_ru_bb_local_compute_process_def): Removed update
	to gen set.
	(df_ru_bb_local_compute): Reversed statements and removed bogus
	comment explaining why they should be in wrong order.
	(df_ru_dump, df_rd_dump): Enhanced debug info.
	* modulo-sched.c (sms_schedule, tree_opt_pass pass_sms): Enhanced
	debug info.
	* ddg.c (add_deps_for_def): Converted use of reaching defs to
	reaching uses and fixed space problem.

2006-05-23  Jan Hubicka  <jh@suse.cz>

	* cgraphunit.c (decide_is_function_needed): Also nested functions
	and functions declared inline can be optimized out at -O0.

2006-05-22  Gerald Pfeifer  <gerald@pfeifer.com>

	* doc/install.texi (Configuration): Remove reference to CrossGCC
	FAQ which was gone.
	(Building): Ditto.

2006-05-22  Kazu Hirata  <kazu@codesourcery.com>

	PR target/27266
	* config/i386/i386.c (ix86_expand_branch): Jump to simple if
	ix86_compare_emitted is non-NULL.

2006-05-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

	PR c++/27451
	* stmt.c (expand_asm_operands): Skip asm statement with erroneous
	clobbers.

2006-05-22  Richard Sandiford  <richard@codesourcery.com>

	PR rtl-optimization/25514
	* combine.c (replaced_rhs_insn): New variable.
	(combine_instructions): Set replaced_rhs_insn when trying to replace
	a SET_SRC with a REG_EQUAL note.
	(distribute_notes): Use replaced_rhs_insn when determining the live
	range of a REG_DEAD register.

2006-18-05  Joerg Wunsch <j.gnu@uriah.heep.sax.de>
	    Anatoly Sokolov <aesok@post.ru>

	* config/avr/avr.c (avr_mcu_types): Add support for attiny261,
	attiny461, attiny861, attiny25, attiny45, attiny85, attiny24,
	attiny44, attiny84, at90pwm2, at90pwm3, atmega165p, atmega169p,
	atmega164p, atmega324p, atmega644p, atmega644, atmega329,
	atmega3290, atmega649, atmega6490, atmega406, atmega640,
	atmega1280, atmega1281, at90can32, at90can64, at90usb646,
	at90usb647, at90usb1286 and at90usb1287 devices.
	* config/avr/avr.h (LINK_SPEC, CRT_BINUTILS_SPECS): (Ditto.).
	* config/avr/t-avr (MULTILIB_MATCHES): (Ditto.).

2006-05-22  Richard Sandiford  <richard@codesourcery.com>

	* mklibgcc.in (lib2funcs): Remove _floatdidf from initial assignment.

2006-05-22  Richard Guenther  <rguenther@suse.de>

	Revert
	2006-01-31  Richard Guenther  <rguenther@suse.de>
	Paolo Bonzini  <bonzini@gnu.org>

	* doc/install.texi (--disable-libgcc-math): Document.

2006-05-22  Richard Guenther  <rguenther@suse.de>

	Revert
	2006-01-31  Richard Guenther  <rguenther@suse.de>

	* doc/invoke.texi (-msselibm): Document.
	* target.h (expand_library_builtin): New target hook.
	* builtins.c (expand_builtin): Use expand_library_builtin.
	(default_expand_library_builtin): New function.
	* gcc.c (LINK_GCC_MATH_SPEC): Define.
	(LINK_COMMAND_SPEC): Handle %(link_gcc_math).
	(link_gcc_math_spec): Declare.
	(static_specs): Add link_gcc_math_spec.
	* expr.h (default_expand_library_builtin): Declare.
	* target-def.h (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
	(TARGET_INITIALIZER): Add TARGET_EXPAND_LIBRARY_BUILTIN.
	* config/i386/i386.h: Provide LINK_GCC_MATH_SPEC.
	* config/i386/i386.opt (msselibm): New target option.
	* config/i386/i386.c (ix86_builtin_function_variants): New array.
	(ix86_init_sse_abi_builtins): New function.
	(ix86_expand_library_builtin): Likewise.
	(TARGET_EXPAND_LIBRARY_BUILTIN): Define.
	(override_options): Handle error conditions wrt -msselibm.
	(ix86_builtins): Add function codes for SSE2 ABI builtins.
	(ix86_init_builtins): Call ix86_init_sse_abi_builtins.
	* doc/extend.texi (__builtin_sse2_*): Document new target specific
	builtins.

2006-05-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

	PR c/27420
	* c-common.c (self_promoting_args_p): Skip erroneous args.

	PR c/26818
	* c-decl.c (finish_struct): Skip erroneous fields.

2006-05-22  Nick Clifton  <nickc@redhat.com>

	* config/cris/cris.opt (march): Remove VarExists attribute.
	(max-stackframe=): Likewise.

2006-05-22  Kazu Hirata  <kazu@codesourcery.com>

	* doc/rtl.texi: Fix a typo.
	* see.c: Fix comment typos.

	* tree-ssa-structalias.h (alias_info): Remove num_references.

2006-05-21  Mike Stump  <mrs@apple.com>

	* config/darwin-c.c (BAD): Conditionalize on OPT_Wpragmas.
	(BAD2): Add.
	(darwin_pragma_options): Use BAD instead.
	(darwin_pragma_unused): Likewise.
	(darwin_pragma_ms_struct): Likewise.

2006-05-21  David Edelsohn  <edelsohn@gnu.org>

	* config/rs6000/rs6000.md (floatsitf2): Remove constraints.

2006-05-21  Kazu Hirata  <kazu@codesourcery.com>

	PR rtl-optimization/27671
	* simplify-rtx.c (simplify_relational_operation_1): Fix
	simplifications of (eq/ne (xor x y) y) and
	(eq/ne (xor x y) x).

	PR tree-optimization/26622.
	* fold-const.c (fold_ternary) <COND_EXPR>: Call fold_convert
	on arg1.

2006-05-21  Bernhard Fischer  <aldot@gcc.gnu.org>

	* tree-cfg.c: Prune whitespace.
	(debug_tree_cfg): Point to correct header containing the
	TDF_* defines.

2006-05-21  Bernhard Fischer  <aldot@gcc.gnu.org>

	PR middle-end/25776
	* cgraphunit.c (verify_cgraph_node): Typo in error message.

2006-05-20  Andrew Pinski  <pinskia@physics.uc.edu>

	PR middle-end/25776
	* cgraphunit.c (cgraph_optimize): Don't run ipa passes if error
	or sorry count is non zero.

2006-05-20  Andreas Schwab  <schwab@suse.de>

	* config/pa/pa-linux.h (STRING_ASM_OP): Prepend and append a tab.

2006-05-19  Daniel Berlin  <dberlin@dberlin.org>
	    Kenneth Zadeck <zadeck@naturalbridge.com>

	PR rtl-optimization/26855

	* df-scan.c (mw_reg_pool, mw_link_pool): New allocation pools for
	multiword refs.
	(df_scan_alloc): Added code to properly handle multiword hard
	registers and add all_blocks parameter.
	(df_scan_free_internal, df_insn_refs_delete, df_ref_record): Added
	code to properly handle multiword hard registers.
	(df_rescan_blocks): Added code to remove deleted blocks from
	bitmap.
	(df_ref_create_structure, df_ref_record): Added code to properly
	handle subregs.
	(df_ref_record_1): Changed DF_REF_CLOBBER into DF_REF_MUST_CLOBBER
	and set DF_REF_PARTIAL.
	(df_defs_record): Changed DF_REF_CLOBBER into DF_REF_MUST_CLOBBER.
	(df_uses_record): Added DF_REF_PARTIAL for subreg.
	(df_scan_add_problem): Added flags parameter.
	(df_ref_create_structure): Changed switching structure.
	(df_bb_refs_record): Fixed case where duplicate artificial refs
	were created.  Changed location of flags.
	(df_record_entry_block_defs): Added code to make stack pointer
	live in entry block.  Refined cases where frame pointer is needed.
	Changed location of flags.
	(df_record_exit_block_uses, df_insn_refs_record): Changed location of flags.
	(df_set_state): Removed function.
	(df_grow_reg_info, df_reg_chain_unlink, df_ref_remove,
	df_insn_create_insn_record, df_insn_refs_delete,
	df_ref_create_structure): Formatting changes.
	* df-core.c (df_mvs_dump, df_set_flags, df_clear_flags,
	df_delete_basic_block): New function.
	(df_init): Changed location of flags.
	(df_add_problem): Added flags parameter and the way flags are
	processed.
	(df_insn_uid_debug, df_ref_debug, debug_df_defno, debug_df_ref,
	debug_df_chain): Improved debugging output.
	(df_insn_debug, df_insn_uid_debug): Added multiword reg support.
	(df_refs_chain_dump): Removed df parameter.
	(df_iterative_dataflow): Added consistency check.
	(df_prune_to_subcfg): Made public.
	(df_analyze_problem): Added blocks_to_init parameter and made
	public.
	(df_ref_record, df_bb_refs_record, df_mark_reg,
	 df_record_exit_block_uses): Whitespace changes.
	(df_dump): Whitespace changes.
	* df.h: Some reordering to remove forward references.
	(df_ref_flags.DF_REF_MW_HARDREG, DF_REF_PARTIAL,
	DF_REF_MUST_CLOBBER, DF_REF_MAY_CLOBBER): New fields.
	(df_ref_flags.DF_REF_CLOBBER): Deleted field.
	(dataflow.flags): New field.
	(df.flag): Deleted field.
	(df_alloc_function): Added additional bitmap parameter.
	(df_dependent_problem_function): New type.
	(df_problem.changeable_flags): New field.
	(df_ref_flags.DF_REF_DIES_AFTER_THIS_USE, DF_SCAN_INITIAL,
	DF_SCAN_GLOBAL, DF_SCAN_POST_ALLOC, df_state): Removed.
	(df_mw_hardreg): New struct.
	(DF_INSN_UID_MWS): New macro.
	(df_refs_chain_dump, df_ref_debug, df_chain_dump): Removed df
	parameter.
	(df_add_problem, df_ru_add_problem, df_rd_add_problem,
	df_lr_add_problem, df_ur_add_problem, df_urec_add_problem,
	df_ri_add_problem, df_scan_add_problem): Added flags parameter.
	(df_set_state): Removed function.
	(df_set_flags, df_clear_flags, df_delete_basic_block) New functions.
	* df-problems.c (df_chain_dump): Removed df parameter.
	(df_ru_alloc, df_rd_alloc, df_lr_alloc, df_ur_alloc,
	df_urec_alloc, df_chain_alloc, df_ri_alloc): Added all blocks
	parameter.
	(df_ru_alloc, df_rd_alloc): Now resets all blocks.
	(df_rd_bb_local_compute_process_def, df_ur_bb_local_compute,
	df_chain_create_bb, df_create_unused_note, df_ri_bb_compute):
	Split DF_REF_CLOBBER into DF_REF_MAY_CLOBBER and
	DF_REF_MUST_CLOBBER cases.
	(df_ru_bb_local_compute_process_def,
	df_rd_bb_local_compute_process_def, df_lr_bb_local_compute,
	df_lr_bb_local_compute, df_ur_bb_local_compute,
	df_chain_create_bb): Made subreg aware.
	(df_ru_bb_local_compute, df_rd_bb_local_compute,
	df_lr_bb_local_compute, df_lr_bb_local_compute,
	df_chain_create_bb): Cleanup to use proper macros.
	(df_ur_local_finalize, df_urec_local_finalize): Removed unnecessary
	code to fixup bitvectors.
	(df_ri_alloc): Cleared lifetime.
	(df_ignore_stack_reg, df_kill_notes, df_set_notes_for_mw,
	df_create_unused_note): New function.
	(df_ri_bb_compute, df_ri_compute): Added code to create/update
	REG_DEAD and REG_UNUSED notes as well as register information.
	(df_ru_dump, df_rd_dump, df_lr_dump, df_ur_dump, df_urec_dump,
	df_chains_dump): Fixed crash if problem was never run.
	(df_ru_add_problem, df_rd_add_problem, df_lr_add_problem,
	df_ur_add_problem, df_urec_add_problem, df_chain_add_problem,
	df_ri_add_problem): Processes flags in uniform manner.
	(df_ru_alloc, df_ru_local_compute, df_ru_confluence_n, df_ru_free,
	df_ru_dump, df_rd_local_compute, df_rd_confluence_n, df_rd_free,
	df_rd_dump, df_urec_free_bb_info): Formatting changes.
	(df_ru_free_bb_info, df_ru_bb_local_compute, df_ru_dump,
	df_rd_free_bb_info, df_rd_bb_local_compute_process_def,
	df_rd_bb_local_compute, df_rd_dump, df_lr_free_bb_info,
	df_lr_bb_local_compute, df_lr_local_compute, df_ur_free_bb_info,
	df_ur_dump, df_urec_free_bb_info, df_urec_dump,
	df_chain_create_bb, df_ri_bb_compute): Whitespace changes.
	* modulo-sched.c (sms_schedule): Added flag parameter to calls.
	* see.c (see_initialize_data): Ditto.
	* final.c (rest_of_clean_state) Added regstack_completed.
	* rtl.h (regstack_completed): Ditto.
	* reg-stack.c (regstack_completed): Ditto.

2006-05-19  Mike Stump  <mrs@apple.com>

	* c-tree.h (default_conversion): Remove.
	* c-common.h (default_conversion): Add.

2006-05-19  Zdenek Dvorak <dvorakz@suse.cz>

	* tree-vrp.c (valid_value_p): New function.
	(adjust_range_with_scev): Fail if the value of bound is not
	simple.

2006-05-19  Richard Sandiford  <richard@codesourcery.com>

	* config/mips/linux-unwind.h: Include <asm/unistd.h>
	(mips_fallback_frame_state): Use syscall numbers to determine
	the appropriate li instruction for the current ABI.  Only use
	__NR_sigreturn for o32.

2006-05-19  Nicolas Setton  <setton@adacore.com>

	* langhooks.h (struct lang_hooks): Add dwarf_name language hook.
	* langhooks.c (lhd_dwarf_name): New function.
	* langhooks-def.h (lhd_dwarf_name): Declare.
	(LANG_HOOKS_DWARF_NAME): New macro, defaults to lhd_dwarf_name.
	* dwarf2out.c (dwarf2_name): Use the dwarf_name	language hook.
	* ada/misc.c (gnat_dwarf_name): New function.
	(LANG_HOOKS_DWARF_NAME): Define to gnat_dwarf_name.

2006-05-19  Richard Sandiford  <richard@codesourcery.com>

	* libgcc2.c (MIN_UNITS_PER_WORD): Move default definition from
	libgcc2.h.
	(LIBGCC2_UNITS_PER_WORD): Provide default definition, using old
	MIN_UNITS_PER_WORD logic from libgcc2.h.  Do nothing if
	LIBGCC2_UNITS_PER_WORD > MIN_UNITS_PER_WORD.
	* libgcc2.h (MIN_UNITS_PER_WORD): Remove definition from here.
	Use LIBGCC2_UNITS_PER_WORD rather than MIN_UNITS_PER_WORD to
	determine the size of Wtype, etc.
	* mklibgcc.in (LIB2_SIDITI_CONV_FUNCS): New argument.
	(swfloatfuncs): New variable.
	(dwfloatfuncs): Likewise.
	(lib2funcs): Remove floating-point conversion functions from
	initial assignment.  Use LIB2_SIDITI_CONV_FUNCS to determine
	the set of conversion routines needed.  Allow entries to specify
	an object name, filename and word size.  Update users accordingly.
	* Makefile.in (libgcc.mk): Pass LIB2_SIDITI_CONV_FUNCS.
	* config/mips/t-mips (LIB2_SIDITI_CONV_FUNCS): Define.

	Revert:

	2006-02-08  Roger Sayle  <roger@eyesopen.com>

	PR target/22209
	* config/fixtfdi.c: New libgcc source file.
	* config/fixunstfdi.c: New source file.
	* config/floatditf.c: New source file.
	* config/floatunditf.c: New souce file.
	* config/mips/t-iris6 (LIB2FUNCS_EXTRA): Include the new source
	files above instead of config/mips/_tilib.c.
	* config/mips/t-linux64 (LIB2FUNCS_EXTRA): Likewise.

2006-05-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

	* pa/t-hpux-shlib (SHLIB_LINK): Remove `-lc'.
	* pa/pa-hpux11.h (LIB_SPEC): Update comment.

2006-05-18  Mike Stump  <mrs@apple.com>

	Fix up vla, vm and [*] sematics.

	PR c/18740
	PR c/7948
	PR c/25802
	PR c/27673
	* c-tree.h (struct c_arg_info): Add had_vla_unspec.
	(c_vla_unspec_p): Add.
	(c_vla_type_p): Add.
	* c-decl.c (struct c_scope): Add had_vla_unspec.
	(build_array_declarator): Add support for [*].
	(grokdeclarator): Likewise.
	(grokparms): Likewise.
	(get_parm_info): Likewise.
	* c-objc-common.c (c_vla_unspec_p): Likewise.
	* c-objc-common.h (LANG_HOOKS_TREE_INLINING_VAR_MOD_TYPE_P): Likewise.
	* c-parser.c (c_parser_typeof_specifier): Evaluate arguments to
	typeof when argument is a variably modified type not inside sizeof or alignof.
	(c_parser_direct_declarator_inner): Propagate errors.
	(c_parser_sizeof_expression): Add support for [*].
	(c_parser_parms_declarator): Initialize had_vla_unspec.
	(c_parser_parms_list_declarator): Likewise.
	* c-typeck.c (c_vla_type_p): Add.
	(composite_type): Add support for vla compositing.
	(comptypes_internal): Add support for vla compatibility.
	(c_expr_sizeof_expr): Evaluate vla arguments.
	* tree.c (variably_modified_type_p): Update comment for [*].

2006-05-18  Michael Matz  <matz@suse.de>

	PR target/27599
	* config.host: Make assignments to host_xmake_file cumulative.
	* config.host (*-darwin*): Test $host, not $target.

2006-05-12  Stuart Hastings  <stuart@apple.com>

	* config/i386/i386.opt (-mstackrealign): New flag.
	* config/i386/i386.c (force_align_arg_pointer): New attribute.
	(ix86_handle_cconv_attribute): Emit error when
	force_align_arg_pointer attribute collides with too many regparms.
	(ix86_function_regparm): Limit regparms when used with
	force_align_arg_pointer attribute.  (ix86_internal_arg_pointer):
	Support stack-realigning prologue in non-main functions.  Emit
	warning for nested functions under -mstackrealign, emit error for
	nested functions with force_align_arg_pointer attribute.
	* doc/extend.texi (force_align_arg_pointer): Document it.
	* doc/invoke.texi (-mstackrealign): Document it.

2006-05-17  Kazu Hirata  <kazu@codesourcery.com>

	PR rtl-optimization/27477
	* combine.c (try_combine): Don't split a parallel consisting
	of two sets into two individual sets if both sets reference
	cc0.

2006-05-17  H.J. Lu  <hongjiu.lu@intel.com>

	* config/arm/arm.opt (target_fpe_name): Remove VarExists.
	* config/rs6000/rs6000.opt (TARGET_NO_FP_IN_TOC): Likewise.

	* doc/options.texi (VarExists): Updated.

2006-05-17  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

	* unwind-dw2.c: Add declarations for uw_update_context and
	uw_frame_state_for.
	* pa/hpux-unwind.h (pa_fallback_frame_state): When an export stub is
	detected, advance frame state and context once to skip over stub.

2006-05-17  Sebastian Pop  <pop@cri.ensmp.fr>

	PR middle-end/20256
	PR middle-end/26435
	* tree-loop-linear.c (linear_transform_loops): Don't test perfect_nest_p.
	Call rewrite_into_loop_closed_ssa only when something changed.
	* lambda.h (gcc_loopnest_to_lambda_loopnest): Update declaration.
	* lambda-code.c (can_convert_to_perfect_nest): Declared.
	(gcc_loopnest_to_lambda_loopnest): Removed need_perfect_nest parameter.
	Test for perfect_nest_p here.  Fix formating.
	(replace_uses_equiv_to_x_with_y): Fix formating.
	(stmt_uses_op): Removed.
	(can_convert_to_perfect_nest): Removed loopivs parameter.
	Complete the test by checking the scalar dependences.
	(perfect_nestify): Remove the test for can_convert_to_perfect_nest.
	Fix formating.

2005-05-17  Bernd Schmidt  <bernd.schmidt@analog.com>

	PR bootstrap/22541
	From Dan Kegel <dank@kegel.com>:
	* Makefile.in: Strip "dir/../" combinations from SYSTEM_INCLUDE_DIR.

2006-05-17  Eric Botcazou  <ebotcazou@adacore.com>

	* tree.c (variably_modified_type_p) <ARRAY_TYPE>: Return true
	if the element type is variably modified without recursing.

2006-05-17  Sebastian Pop  <pop@cri.ensmp.fr>

	PR middle-end/27332
	* tree-loop-linear.c (try_interchange_loops): Test for
	no data dependences.

2006-05-17  Zdenek Dvorak <dvorakz@suse.cz>

	PR tree-optimization/27548
	* tree-scalar-evolution.c (scev_const_prop): Do not prolong life
	range of ssa names that appear on abnormal edges.
	* tree-ssa-loop-ivopts.c (contains_abnormal_ssa_name_p): Export.
	* tree-flow.h (contains_abnormal_ssa_name_p): Declare.

2005-05-17  Bernd Schmidt  <bernd.schmidt@analog.com>

	PR middle-end/27620
	* expr.c (safe_from_p): Handle CONSTRUCTOR again.

2006-05-17  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/27415
	* tree.h (OMP_PARALLEL_COMBINED): Define.
	* gimplify.c (struct gimplify_omp_ctx): Add is_combined_parallel field.
	(new_omp_context): Add is_combined_parallel argument.
	(gimplify_scan_omp_clauses): Add in_combined_parallel argument, adjust
	new_omp_context caller.
	(gimplify_omp_parallel, gimplify_omp_for, gimplify_omp_workshare):
	Adjust gimplify_scan_omp_clauses callers.
	(omp_is_private): Issue errors if iteration variable is firstprivate
	or reduction in the current context.
	* c-parser.c (c_parser_omp_parallel): Set OMP_PARALLEL_COMBINED
	on combined parallel workshare constructs.

2006-05-16  H.J. Lu  <hongjiu.lu@intel.com>

	* Makefile.in (GCC_OBJS): Replace options.o with gcc-options.o.
	(gcc-options.o): New rule.

	* optc-gen.awk: Protect variables for gcc-options.o with
	#ifdef GCC_DRIVER/#endif.

2006-05-16  Daniel Berlin <dberlin@dberlin.org>

	Fix PR tree-optimization/27373
	* tree-ssa-forwprop.c: (forward_propagate_addr_expr_1): Add argument.
	 (forward_propagate_addr_expr): Update call.

2006-05-16  H.J. Lu  <hongjiu.lu@intel.com>

	* doc/options.texi: Move the Negative option.

2006-05-16  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/22303
	* tree-ssa-ccp.c (fold_const_aggregate_ref): Handle reads
	from STRING_CSTs.
	(evaluate_stmt): Fall back to fold_const_aggregate_ref, if
	ccp_fold did not simplify the statement.

2006-05-16  H.J. Lu  <hongjiu.lu@intel.com>

	PR driver/26885
	* Makefile.in (GCC_OBJS): New.
	(OBJS-common): Add opts-common.o.
	(xgcc$(exeext)): Replace gcc.o with $(GCC_OBJS).
	(cpp$(exeext)): Likewise.
	(gcc.o): Also depend on opts.h.
	(opts-common.o): New.

	* common.opt (gcoff): Add Negative(gdwarf-2).
	(gdwarf-2): Add Negative(gstabs).
	(gstabs): Add Negative(gstabs+).
	(gstabs+): Add Negative(gvms).
	(gvms): Add Negative(gxcoff).
	(gxcoff): Add Negative(gxcoff+).
	(gxcoff+): Add Negative(gcoff).
	* config/i386/i386.opt (m32): Add Negative(m64).
	(m64): Add Negative(m32).

	* doc/options.texi: Document the Negative option.

	* gcc.c: Include "opts.h".
	(main): Call prune_options after expandargv.

	* optc-gen.awk: Generate common declarations for all flag
	variables in options.c. Output the neg_index field.

	* opts.c (find_opt): Moved to ...
	* opts-common.c: Here. New file.

	* opts.h (cl_option): Add a neg_index field.
	(find_opt): New.
	(prune_options): Likewise.

2006-05-16  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/27573
	* omp-low.c (expand_omp_parallel): Don't assert
	.OMP_DATA_I = &.OMP_DATA_O is the first statement in the block,
	instead search for it.

	PR c/27499
	* gimplify.c (gimplify_omp_for): Remove assertion that iteration var
	is signed.

2006-05-16  Andreas Schwab  <schwab@suse.de>

	* doc/tm.texi (TARGET_LIBGCC_SDATA_SECTION): Add missing @end
	defmac.

2006-05-15  Roger Sayle  <roger@eyesopen.com>

	PR target/26600
	* config/i386/i386.c (legitimate_constant_p) <CONST_DOUBLE>: TImode
	integer constants other than zero are only legitimate on TARGET_64BIT.
	<CONST_VECTOR> Only zero vectors are legitimate.
	(ix86_cannot_force_const_mem): Integral and vector constants can
	always be put in the constant pool.

2006-05-16  DJ Delorie  <dj@redhat.com>

	* crtstuff.c (__dso_handle): Set section from
	TARGET_LBIGCC_SDATA_SECTION if defined.
	* doc/tm.texi (TARGET_LIBGCC_SDATA_SECTION): Document.
	* config/mips/mips.h (TARGET_LIBGCC_SDATA_SECTION): Define.

2006-05-16  Danny Smith  <dannysmith@users.sourceforge.net>

	PR target/27599
	* config.host (i[34567]86-*-mingw*): Append i386/x-mingw32 to
	host_xmake_file.

2006-05-16  Ben Elliston  <bje@au.ibm.com>

	* tree-cfg.c (split_edge_bb_loc): Remove unused variable `src'.

2006-05-15  Per Bothner  <per@bothner.com>

	* tree.c: (last_annotated_node): Use source_locus typedef.
	This permits bootstrapping with --enable-mapped-location.

2006-05-15  Zdenek Dvorak <dvorakz@suse.cz>

	PR tree-optimization/26830
	* tree-into-ssa.c (struct ssa_name_info): Add age field.
	(info_for_ssa_name, current_info_for_ssa_name_age,
	blocks_to_update): New variables.
	(get_ssa_name_ann): Use info_for_ssa_name instead of SSA_NAME_AUX.
	(clear_ssa_name_info, initialize_flags_in_bb,
	mark_block_for_update): New functions.
	(mark_def_sites, rewrite_stmt): Assert that blocks_to_update is NULL.
	(insert_phi_nodes_for, mark_use_interesting, prepare_block_for_update,
	prepare_def_site_for): Use mark_block_for_update.
	(mark_def_interesting): Assert that the processed block is marked in
	blocks_to_update.  Do not take blocks argument.
	(prepare_use_sites_for, prepare_names_to_update): Do not take blocks
	argument.
	(rewrite_update_init_block, rewrite_update_stmt): Only process
	blocks with statements to rewrite.
	(delete_update_ssa): Do not clear SSA_NAME_AUX.
	(update_ssa): Initialize and free blocks_to_update.  Do not
	clear flags on statements.  Do not use blocks bitmap.
	* tree.h (SSA_NAME_AUX): Removed.
	(struct tree_ssa_name): Removed aux field.
	* print-tree.c (print_node): Do not print SSA_NAME_AUX.

2006-05-15  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/27603
	* tree-ssa-loop-niter.c (infer_loop_bounds_from_undefined):
	Do computations in original type.

2006-05-15  Mircea Namolaru  <namolaru@il.ibm.com>

	* see.c: Code style changes such as redundant paranthesis,
	redundant intialization of local variables etc.
	(see_main): Declared now as static.
	* doc/invoke.texi: Update that -fsee is not enabled by
	default at -O3.

2006-05-15  Jakub Jelinek  <jakub@redhat.com>

	* omp-low.c (check_omp_nesting_restrictions): New function.
	(scan_omp_1): Call it.

	PR middle-end/27416
	* omp-low.c (build_outer_var_ref): If VAR is reference in orphaned
	construct, return *VAR.

2006-05-14  Kaz Kojima  <kkojima@gcc.gnu.org>

	PR rtl-optimization/27406
	* bt-load.c (migrate_btr_def): Skip the block having abnormal
	edges.

2006-05-14  Roger Sayle  <roger@eyesopen.com>

	PR rtl-optimization/27538
	* combine.c (expand_compound_operation): Call gen_lowpart
	before calling simplify_shift_const.

2006-05-14  Roger Sayle  <roger@eyesopen.com>

	PR rtl-optimization/22563
	* expmed.c (store_fixed_bit_field): When using AND and IOR to store
	a fixed width bitfield, always force the intermediates into psuedos.

2006-05-14  Bernhard Fischer  <aldot@gcc.gnu.org>

	PR 27501
	* mkconfig.sh: Use operator = instead of == for test.

2006-05-13  Nick Clifton  <nickc@redhat.com>

	* dwarf2out.c (dbx_reg_number): Check return value from
	LEAF_REG_REMAP and only use it if it is valid.
	(multiple_reg_loc_descriptor): Likewise.

2006-05-13  Richard Guenther  <rguenther@suse.de>

	* config.host <i[34567]86-*-cygwin*>: Append i386/x-cygwin to
	host_xmake_file.

2006-05-13  Steven Bosscher  <stevenb.gcc@gmail.com>

	* df-core.c (df_bb_regno_last_use_find): Do not look for dataflow
	information attached to non-INSNs such as NOTEs.
	(df_bb_regno_first_def_find, df_bb_regno_last_def_find): Likewise.

2006-05-12  Andreas Krebbel  <krebbel1@de.ibm.com>

	* config/s390/s390.c (s390_const_ok_for_constraint_p): Disallow -4G for
	On contraint.
	* config/s390/s390.md: Adjust comment describing On constraint.

2006-05-11  Jan Hubicka  <jh@suse.cz>

	* cgraphunit.c (decide_is_function_needed): Don't force always_inline
	to be output at -O0.

2006-05-11  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

	PR middle-end/27384
	* fold-const.c (size_binop): Move sanity check for arguments to
	the beginning of the function.

	PR middle-end/27488
	* fold-const.c (tree_expr_nonnegative_p): Return early on invalid
	expression.

2006-05-11  Richard Guenther  <rguenther@suse.de>

	PR middle-end/27529
	* fold-const.c (fold_unary): Handle intermediate conversion
	to a pointer type like intermediate conversion to an integer
	type in folding of (T1)(T2)var to var.
	Match the code to the comment in the final conversion for
	(T1)(T2)var to (T1)var regarding to type precision.  Rather
	than disallow T1 being of pointer type, assert that both T1
	and var are of pointer type or not.  Make sure not to fall
	over the frontends lazyness wrt array to pointer decay though.

2006-05-10  Richard Earnshaw  <rearnsha@arm.com>

	* arm.c (arm_struct_value_rtx): Delete.
	(TARGET_STRUCT_VALUE_RTX): Use the default definition.
	(arm_init_cumulative_args): Always initialize nregs to zero.

2006-05-10  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/27532
	* tree-object-size.c (plus_expr_object_size): Fix typo.

2006-05-10  Kazu Hirata  <kazu@codesourcery.com>

	PR target/24949
	* config/m68k/m68k.md (ashrdi_const32, ashrdi_const32_mem,
	ashrdi_const, ashrdi3): Use a scratch register.

2006-05-10  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/27302
	* fold-const.c (operand_equal_p): For two comparisons,
	try comparison of one comparison code swapped if that yields
	the same code.

2006-05-10  Ben Elliston  <bje@au.ibm.com>

	* tree-pretty-print.c (pretty_print_string): No need to handle
	'\0' as a special character.

	* tree.h: Include "hashtab.h".
	(iterative_hash_expr): Use hashval_t in its prototype.
	* Makefile.in (TREE_H): Add $(HASHTAB_H).

2006-05-09  Steve Ellcey  <sje@cup.hp.com>

	PR bootstrap/26872
	* config.gcc (hppa[12]*-*-hpux10*): Set gas to yes.
	(hppa*64*-*-hpux11*): Ditto.
	(hppa[12]*-*-hpux11*): Ditto.

2006-05-09  David Edelsohn  <edelsohn@gnu.org>

	PR target/26545
	* config/rs6000/aix41.h (TARGET_64BIT): Define.

2006-05-09  Michael Matz  <matz@suse.de>

	* config.host (<i[34567]86-*-*, x86_64-*-*>): Set
	host_extra_gcc_objs and host_xmake_file.
	(<*-*-linux*>): Don't overwrite host_xmake_file.
	* gcc.c (static_spec_functions): Add EXTRA_SPEC_FUNCTIONS.
	* config/i386/i386.h (EXTRA_SPEC_FUNCTIONS): Define.
	(host_detect_local_cpu): Declare.
	(CC1_CPU_SPEC): Add -march=native and -mtune=native cases.
	* config/i386/i386.c (override_options): Handle -mtune=native
	as -mtune=generic.
	* config/i386/x-i386: New file.
	* config/i386/driver-i386.c: New file.
	* doc/invoke.texi (<i386 and x86-64 Options>): Describe
	cpu-type "native".

2006-05-09  Dirk Mueller  <dmueller@suse.de>
	Richard Guenther  <rguenther@suse.de>

	PR middle-end/27498
	* fold-const.c (fold_read_from_constant_string): Relax check
	for matching types to matching modes.

2006-05-09  Zdenek Dvorak <dvorakz@suse.cz>

	PR rtl-optimization/27335
	* loop-unroll.c (peel_loops_completely): Use loops->parray to walk the
	loops.

2006-05-08  Chao-ying Fu  <fu@mips.com>
	    Richard Sandiford  <richard@codesourcery.com>

	* config/mips/mips-ps-3d.md (scc_ps, s<code>_ps): New patterns.
	(vcondv2sf, sminv2sf3, smaxv2sf3): Likewise.
	* config/mips/mips.md (UNSPEC_SCC): New constant.
	* config/mips/mips-protos.h (mips_expand_vcondv2sf): Declare.
	* config/mips/mips.c (mips_reverse_fp_cond_p): New function.
	(mips_emit_compare): Use it.
	(mips_expand_vcondv2sf): New function.

2006-05-08  Daniel Berlin  <dberlin@dberlin.org>

	Fix PR tree-optimization/27093
	* tree-ssa-alias.c (recalculate_used_alone): Mark variables for
	renaming when they become not-used_alone.

2006-05-08  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

	* hpux-unwind.h (pa_fallback_frame_state): Handle return parameter
	relocation and relocation stubs.

2006-05-08  Eric Christopher  <echristo@apple.com>

	* unwind-dw2-fde-darwin.c (examine_objects): Only check data
	section for ppc.

2006-05-08  Jan Hubicka  <jh@suse.cz>

	PR middle-end/24561
	* cgraphunit.c (decide_is_function_needed): When not optimizing even
	unused static functions are needed.

2006-05-08  Roger Sayle  <roger@eyesopen.com>

	PR target/27158
	* reload.c (find_reloads_toplev): Only return the simplified SUBREG
	of a reg_equiv_constant if the result is a legitimate constant.

2006-05-08  Uros Bizjak  <uros@kss-loka.si>

	PR target/27277
	* config/i386/i386.c (ix86_rtx_costs) [FLOAT_EXTEND]: For
	standard 80387 constants, raise the cost to prevent
	compress_float_constant() to generate load from memory.

2006-05-08  Kazu Hirata  <kazu@codesourcery.com>

	* config/arm/constraints.md (c): Fix a typo.

	* see.c, tree-flow-inline.h, tree-phinodes.c: Fix comment
	typos.

2006-05-07  H.J. Lu  <hongjiu.lu@intel.com>

	PR target/24879
	* config/i386/pmmintrin.h (_mm_monitor): Remove macro. Use
	inline function.
	(_mm_mwait): Likewise.

	* config/i386/sse.md (sse3_mwait): Replace "mwait\t%0, %1" with
	"mwait".
	(sse3_monitor): Make it 32bit only.
	(sse3_monitor64): New. 64bit monitor.

2006-05-07  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

	PR target/27421
	* config/i386/i386.c (classify_argument): Skip fields with invalid
	types.

2006-05-07  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/27409
	* tree-ssa-structalias.c (get_constraint_for_component_ref):
	Do not try to find zero-sized subvars.

2006-05-07  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/27136
	* tree-ssa-loop-niter.c (get_val_for): Correct function
	comment, assert requirements.
	(loop_niter_by_eval): Stop processing if the iterated
	value did not simplify.

2006-05-07  Mircea Namolaru  <namolaru@il.ibm.com>

	* opts.c (flag_see): remove its setting at -O3.

2006-05-07  Richard Earnshaw  <rearnsha@arm.com>

	* genpeep.c (main): Make insn-peep.c depend on flags.h.
	* arm/constraints.md: New file.
	* arm.h (REG_CLASS_FROM_LETTER_P): Delete.
	(CONST_OK_FOR_ARM_LETTER, CONST_OK_FOR_THUMB_LETTER)
	(CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_ARM_LETTER)
	(CONST_DOUBLE_OK_FOR_LETTER_P, EXTRA_CONSTRAINT_STR_ARM)
	(CONSTRAINT_LEN, EXTRA_CONSTRAINT_THUMB, EXTRA_CONSTRAINT_STR)
	(EXTRA_MEMORY_CONSTRAINT): Likewise.
	* arm.md: Include constraints.md.
	(thumb_movsi_insn): Use satisfies_constraint_J.
	(movhi, movqi): Use satisfies_constraint_I.

2006-04-29 Anatoly Sokolov <aesok@post.ru>

	* config/avr/avr.h (CRT_BINUTILS_SPECS): Fixed crt* file name
	for atmeg a645 device.

2006-05-06   Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/27151
	* tree-vect-transform.c (vectorizable_condition): Punt on
	values that have a different type than the condition.

2006-05-03  Aldy Hernandez  <aldyh@redhat.com>

	PR/21391
	* c-parser.c (c_parser_cast_expression): Only insert casts into
	hash table if pointer.
	* function.c (used_types_insert_helper): Rename from
	used_types_insert.
	(used_types_insert): Call used_types_insert_helper.
	* function.h (used_types_insert): Accept only one argument.

2006-05-05  David Edelsohn  <edesohn@gnu.org>

	* config/rs6000/rs6000.md: Mark all "X" constraints for clobbered
	scratch with output modifier.

2006-05-04  David Edelsohn  <edelsohn@gnu.org>

	PR target/26481
	* config/rs6000/rs6000.md (stmsi_power): Mark clobber constraint
	with output modifier.

2006-05-04  Richard Sandiford  <richard@codesourcery.com>

	PR target/26765
	* config/mips/mips.c (mips_symbolic_address_p): Return true
	for SYMBOL_TLSGD, SYMBOL_TLSLDM, SYMBOL_DTPREL, SYMBOL_TPREL,
	SYMBOL_GOTTPREL, and SYMBOL_TLS.

2006-05-04  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/14287
	PR tree-optimization/14844
	PR tree-optimization/19792
	PR tree-optimization/21608
	PR tree-optimization/27090
	* tree-ssa-pre.c (try_combine_conversion): New function.
	(compute_avail): After constructing the value-handle
	expression, use try_combine_conversion to combine NOP_EXPRs
	with previous value-handle expressions and use the result if it
	is available.

2006-05-04  Joseph S. Myers  <joseph@codesourcery.com>

	* config/mips/linux64.h (DWARF_OFFSET_SIZE): Remove.

2006-05-04  Jan Hubicka  <jh@suse.cz>

	PR middle-end/25962
	* cgraphunit.c (verify_cgraph_node): Fix cgraph_hash testing.

2006-05-04  Bernd Schmidt  <bernd.schmidt@analog.com>

	* config/bfin/predicates.md (const01_rtx): Tell generator programs
	that this only matches CONST_INTs.  All users changed to VOIDmode
	operands.

	* config/bfin/bfin.c: Include "optabs.h".
	(bfin_rtx_costs): Some costs for vector operations, to allow combine
	to do more work.
	(enum bfin_builtins): Add a number of fractional and vector builtins.
	(bfin_init_builtins): Likewise.
	(struct builtin_description, bdesc_2arg, bdesc_1arg): New.
	(safe_vector_operand, bfin_expand_binop_builtin,
	bfin_expand_unop_builtin): New functions.
	(bfin_expand_builtin): Handle the new builtins.
	* config/bfin/bfin.h (TARGET_CPU_CPP_BUILTINS): Define
	__ADSPBLACKFIN__.

2006-05-04  Leehod Baruch  <leehod@il.ibm.com>

	* see.c: New file.
	* Makefile.in (OBJS-common): Add see.o.
	(see.o): Add dependencies.
	* common.opt (fsee): New flag for the see optimization was added.
	* opts.c (flag_see): Initialized.
	* passes.c (init_optimization_passes, pass_see): New pass.
	* rtl.h (see_main): Declaration as extern.
	* timevar.def (TV_SEE): New.
	* tree-pass.h (pass_see): Declaration as extern.
	* invoke.texi (-fsee): Document.
	* recog.c (validate_simplify_insn): New function.
	* recog.h (validate_simplify_insn): Declaration as extern.
	* df-problems.c (df_chain_dump): Check for NULL.

2006-05-04  Kenneth Zadeck <zadeck@naturalbridge.com>
	    Daniel Berlin  <dberlin@dberlin.org>

	* cfgrtl.c (insert_insn_bb_end_new): New function.
	* basic-block.h (insert_insn_bb_end_new): Declaration as extern.

2006-05-04  Leehod Baruch  <leehod.baruch@weizmann.ac.il>

	* df.h (struct web_entry): Moved from web.c.
	(union_defs): Declaration as extern.
	(unionfind_root): Likewise.
	(unionfind_union): Likewise.
	* web.c (struct web_entry): Moved to df.h.
	(unionfind_root): Remove static declaration.
	(unionfind_union): Likewise.
	(union_defs): Likewise and generalize to use callback function.
	(web_main): Update arguments for union_defs function call.

2006-05-04  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/26447
	* tree-ssa-pre.c (realify_fake_stores): For necessary loads
	produce SSA_NAME copies before the store stmt to avoid
	breaking exception handling.

2006-05-04  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/27388
	* gimplify.c (omp_is_private): If var is shared in some outer context,
	return false instead of true.  Stop searching on parallel context
	boundary.

2006-05-03  Alexandre Oliva  <aoliva@redhat.com>

	PR java/8260
	* coverage.c: Use get_gcov_unsigned_t() instead of
	unsigned_type_node all over.

2006-05-02  Andrew MacLeod  <amacleod@redhat.com>

	PR tree-optimization/27381
	* tree-phinodes.c (remove_phi_arg_num): When moving a phi argument,
	maintain the same immediate_use links.
	* tree-ssa-operands.c (dump_immediate_uses_for): Show iteration marker
	node rather than segfaulting.

2006-05-03  Jakub Jelinek  <jakub@redhat.com>

	PR fortran/27395
	* gimplify.c (gimplify_scan_omp_clauses): Compare OMP_CLAUSE_CODE
	rather than TREE_CODE to OMP_CLAUSE_REDUCTION.  Set also GOVD_SEEN
	bit for OMP_CLAUSE_REDUCTION_PLACEHOLDER.

2006-05-02  Daniel Berlin  <dberlin@dberlin.org>

	Fix PR tree-optimization/26626
	* tree-ssa-structalias.c (compute_points_to_sets): For now, solve
	always.
	* tree-ssa-operands.c (access_can_touch_variable): Allow
	typecasting through union pointers.

2006-05-02  Jakub Jelinek  <jakub@redhat.com>

	PR c++/26943
	* omp-low.c (maybe_lookup_decl_in_outer_ctx): New function.
	(build_outer_var_ref): Use maybe_lookup_decl_in_outer_ctx
	to find if var will be a global variable even in the nested context.
	(omp_copy_decl): Only check for global variable at the end, it might
	be overridden in outer contexts.
	(scan_sharing_clauses): For global variables don't create a field.
	(lower_rec_input_clauses): Do nothing for global shared variables.
	Emit a barrier at the end of ILIST if there were any decls in both
	firstprivate and lastprivate clauses.
	(lower_send_clauses): Do nothing for global variables except for
	COPYIN.

2006-05-02  Zdenek Dvorak <dvorakz@suse.cz>

	* tree.c (unsigned_type_for, signed_type_for): Make sure a type
	of the correct signedness is returned.

2006-05-02  Jeff Law  <law@redhat.com>

	PR tree-optimization/27364
	* tree-vrp.c (vrp_int_const_binop): Fix detection of overflow from
	multiply expressions.

2006-05-02  Tom Tromey  <tromey@redhat.com>

	* tree-flow-inline.h (op_iter_init_phiuse): Fixed typo.

2006-05-02  Kazu Hirata  <kazu@codesourcery.com>

	PR target/27387
	* arm.c (arm_output_mi_thunk): Use pc-relative addressing when
	-mthumb -fPIC are used.

2006-05-02  Stanislaw Skowronek  <skylark@linux-mips.org>
	    Joshua Kinard  <kumba@gentoo.org>

	PR target/25871
	* config/mips/mips.h (TRAMPOLINE_TEMPLATE): Avoid 32-bit moves
	with 64-bit pointers.

2006-05-02  Paul Brook  <paul@codesourcery.com>

	* config/arm/arm.c (add_minipool_forward_ref): Check if insn
	and pool overlap.
	(create_fix_barrier): Check that a suitable barrier location is
	found.
	(arm_reorg): Include ftmp->address in allowable range of addresses.

2006-05-02  David Billinghurst <David.Billinghurst@riotinto.com>

	PR ada/27366
	* ada/env.c (__gnat_clearenv): Use unsetenv() to clear environment
	on Cygwin.

2006-05-02  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/27337
	* gimplify.c (gimplify_scan_omp_clauses): Handle INDIRECT_REF
	around RESULT_DECL for result passed by reference.
	(gimplify_expr): Call omp_notice_variable when RESULT_DECL is seen.
	* omp-low.c (use_pointer_for_field): Don't look at
	DECL_HAS_VALUE_EXPR_P for RESULT_DECLs.
	(scan_omp_1): Call remap_decl on RESULT_DECLs.
	(lower_rec_input_clauses): Don't allocate VLA memory for the second
	time or var for passing by reference for
	OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE clauses.  Allow creation of
	TREE_ADDRESSABLE variables when passing by reference.

	* omp-low.c (dump_omp_region): Fix output formatting.

	PR middle-end/27328
	* omp-low.c (remove_exit_barrier): Handle NULL exit_bb.
	(expand_omp_parallel): Likewise.
	* tree-cfg.c (move_sese_region_to_fn): Likewise.

	PR middle-end/27325
	* omp-low.c (lower_omp_sections): Call maybe_catch_exception
	on statement list containing also constructors and destructors.
	(lower_omp_single, lower_omp_for, lower_omp_parallel): Likewise.

	PR middle-end/27310
	* except.c (duplicate_eh_regions): Fix clearing of
	cfun->eh->region_array entries.

2006-05-01  DJ Delorie  <dj@redhat.com>

	* configure.ac (gcc_cv_nm): Don't use an in-tree nm if
	build!=host.
	(gcc_cv_objdump): Likewise.
	* configure: Regenerated.

2006-05-01  Kazu Hirata  <kazu@codesourcery.com>

	PR target/27374
	* config/arm/vfp.md (*arm_movdi_vfp): Correct the output
	templates for case 3 and 4.

2006-05-01  DJ Delorie  <dj@redhat.com>

	* vec.c: Include bconfig.h when appropriate.
	* Makefile.in (build/vec.o): Adjust dependencies.
	* mkconfig.sh: Make sure config.h isn't used for build machine
	compiles.

2006-05-01  Zdenek Dvorak <dvorakz@suse.cz>

	* tree-into-ssa.c (phis_to_rewrite, blocks_with_phis_to_rewrite): New
	variables.
	(mark_phi_for_rewrite): New function.
	(insert_phi_nodes_for, mark_use_interesting): Call
	mark_phi_for_rewrite.
	(rewrite_update_phi_arguments): Traverse only phis in phis_to_rewrite.
	(update_ssa): Initialize and free phis_to_rewrite.

2006-05-01  Zdenek Dvorak <dvorakz@suse.cz>

	PR rtl-optimization/27291
	* loop-doloop.c (add_test, doloop_modify): Handle the case condition is
	folded to a constant.

2006-05-01  Zdenek Dvorak <dvorakz@suse.cz>

	PR tree-optimization/27283
	* tree-ssa-loop-ivopts.c (struct nfe_cache_elt): Store just trees,
	not whole # of iteration descriptions.
	(niter_for_exit): Return just # of iterations.  Fail if # of iterations
	uses abnormal ssa name.
	(niter_for_single_dom_exit): Ditto.
	(find_induction_variables, may_eliminate_iv): Expect niter_for_exit to
	return just the number of iterations.

2006-05-01  Zdenek Dvorak <dvorakz@suse.cz>

	PR tree-optimization/27144
	* tree-ssa-loop-niter.c (derive_constant_upper_bound): New function.
	(record_estimate): Only record constant upper bound.
	(infer_loop_bounds_from_undefined): Call
	compute_estimated_nb_iterations just once.
	(proved_non_wrapping_p): Renamed to ...
	(n_of_executions_at_most): ... this.  Expect bound to be a constant.
	(convert_step_widening, scev_probably_wraps_p): Call
	n_of_executions_at_most instead of proved_non_wrapping_p.
	(substitute_in_loop_info): Do not replace values in bounds.
	* cfgloop.h (struct nb_iter_bound): Remove "additional" field.  Update
	comments.

2006-05-01  Richard Henderson  <rth@redhat.com>

	PR c/27358
	* c-parser.c (c_parser_skip_to_end_of_block_or_statement): Move after
	c_parser_skip_to_pragma_eol.  Convert to switch statement.  Handle
	CPP_PRAGMA.

2006-05-01  Roger Sayle  <roger@eyesopen.com>

	* c-typeck.c (parser_build_binary_op): Don't call the function
	unsigned_conversion_warning to spot operand/result type overflow.
	(build_binary_op): Instead, call convert_and_check instead of
	convert to report the problem when the operands are promoted.
	* c-common.c (unsigned_conversion_warning): Make static.
	* c-common.h (unsigned_conversion_warning): Delete prototype.

2006-05-01  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/26726
	* tree-ssa-loop-ivopts.c (idx_find_step): Mark source of the
	problem ...
	(find_interesting_uses_address): ... we work around here
	by folding INDIRECT_REFs in the substituted base.

2006-05-01  Diego Novillo  <dnovillo@redhat.com>

	* omp-low.c (dump_omp_region): Add newlines.

2006-04-30  Roger Sayle  <roger@eyesopen.com>

	* common.opt (Woverflow): New command line option.
	* c-common.c (constant_expression_warning): Check warn_overflow.
	(overflow_waring): Pass OPT_Woverflow to warning.
	(unsigned_conversion_warning): Likewise.
	(convert_and_check): Likewise.
	* doc/invoke.texi: Document new command line option.

2006-04-30  David Edelsohn  <edelsohn@gnu.org>

	* config/rs6000/rs6000.c (rs6000_override_options): Enable
	TARGET_NO_FP_IN_TOC for section anchors.
	(optimization_options): Enable section anchors for all
	non-"Objective" languages.

2006-04-28  Eric Christopher  <echristo@apple.com>

	* config/darwin-c.c (darwin_ms_struct): Move this
	(darwin_set_default_type_attributes): and this...
	* config/darwin.c: ... here.
	* config/darwin.h (darwin_ms_struct): Declare.

2006-04-28  Andrew MacLeod  <amacleod@redhat.com>

	* tree-ssa-dom.c (propagate_rhs_into_lhs): Fix assert clause.

2006-04-28  Roger Sayle  <roger@eyesopen.com>

	PR c/25309
	* c-typeck.c (struct spelling): Make I an unsigned HOST_WIDE_INT.
	(push_array_bounds): Delete prototype.  Change BOUNDS argument to
	an unsigned HOST_WIDE_INT.
	(print_spelling): Use HOST_WIDE_INT_PRINT_UNSIGNED to output the
	array index.
	(really_start_incremental_init): No need to call convert because
	bitsize_zero_node is already of type bitsizetype.
	(push_init_level): Extract the value of constructor_index as an
	unsigned HOST_WIDE_INT quantity, using tree_low_cst.
	(process_init_element): Likewise.

2006-04-28  Joseph S. Myers  <joseph@codesourcery.com>

	* gcc.c (process_command): Add program name to GCC_EXEC_PREFIX
	value before passing to make_relative_prefix.

2006-04-28  Alan Modra  <amodra@bigpond.net.au>

	PR middle-end/27260
	* builtins.c (expand_builtin_memset): Expand val in original mode.

2006-04-27  Eric Christopher  <echristo@apple.com>

	* target-def.h (TARGET_SET_DEFAULT_TYPE_ATTRIBUTES): Bracket
	with #ifndef/#endif.
	* config/darwin-c.c (darwin_ms_struct): New.
	(darwin_pragma_ms_struct): Ditto.
	(darwin_set_default_type_attributes): Ditto.
	* config/darwin-protos.h (darwin_pragma_ms_struct): Declare.
	* config/darwin.h (DARWIN_REGISTER_TARGET_PRAGMAS):
	Register ms_struct pragma.
	* config/i386/darwin.h (REGISTER_TARGET_PRAGMAS): Declare.
	(TARGET_SET_DEFAULT_TYPE_ATTRIBUTES): Ditto.
	* config/rs6000/rs6000.c (rs6000_set_default_type_attributes): Call
	darwin_set_default_type_attributes if TARGET_MACHO.

2006-04-27  Andrew MacLeod  <amacleod@redhat.com>

	PR tree-optimization/26854
	* tree-vrp.c (remove_range_assertions): Use new Immuse iterator.
	* doc/tree-ssa.texi: Update immuse iterator documentation.
	* tree-ssa-math-opts.c (execute_cse_reciprocals_1): Use new iterator.
	* tree-ssa-dom.c (propagate_rhs_into_lhs): Use new iterator.
	* tree-flow-inline.h (end_safe_imm_use_traverse, end_safe_imm_use_p,
	first_safe_imm_use, next_safe_imm_use): Remove.
	(end_imm_use_stmt_p): New.  Check for end of immuse stmt traversal.
	(end_imm_use_stmt_traverse): New.  Terminate immuse stmt traversal.
	(move_use_after_head): New.  Helper function to sort immuses in a stmt.
	(link_use_stmts_after): New.  Link all immuses in a stmt consescutively.
	(first_imm_use_stmt): New.  Get first stmt in an immuse list.
	(next_imm_use_stmt): New.  Get next stmt in an immuse list.
	(first_imm_use_on_stmt): New.  Get first immuse on a stmt.
	(end_imm_use_on_stmt_p): New.  Check for end of immuses on a stmt.
	(next_imm_use_on_stmt): New.  Move to next immuse on a stmt.
	* tree-ssa-forwprop.c (forward_propagate_addr_expr): Use new iterator.
	* lambda-code.c (lambda_loopnest_to_gcc_loopnest): Use new iterator.
	(perfect_nestify): Use new iterator.
	* tree-vect-transform.c (vect_create_epilog_for_reduction): Use new
	iterator.
	* tree-flow.h (struct immediate_use_iterator_d): Add comments.
	(next_imm_name): New field in struct immediate_use_iterator_d.
	(FOR_EACH_IMM_USE_SAFE, BREAK_FROM_SAFE_IMM_USE): Remove.
	(FOR_EACH_IMM_USE_STMT, BREAK_FROM_IMM_USE_STMT,
	FOR_EACH_IMM_USE_ON_STMT): New immediate use iterator macros.
	* tree-cfg.c (replace_uses_by): Use new iterator.
	* tree-ssa-threadedge.c (lhs_of_dominating_assert): Use new iterator.
	* tree-ssa-operands.c (correct_use_link): Remove.
	(finalize_ssa_use_ops): No longer call correct_use_link.

2006-04-27  Stuart Hastings  <stuart@apple.com>

	* config/rs6000/t-darwin (DARWIN_EXTRA_CRT_BUILD_CFLAGS): New.
	* config/t-darwin (crt3.o): Use it.
	* config/rs6000/rs6000.c (rs6000_initialize_trampoline): Remove
	'pmode', use Pmode instead of SImode for SYMBOL_REF.
	* config/rs6000/rs6000.md (call_indirect_nonlocal_sysv,
	call_nonlocal_sysv, call_value_indirect_nonlocal_sysv,
	call_value_nonlocal_sysv): Suffix with the "P" macro for 32/64
	support.

2006-04-27  Roger Sayle  <roger@eyesopen.com>

	* expmed.c (store_fixed_bit_field): If we're not optimizing for
	size, force the intermediate into a new pseudo rather instead of
	performing both a bitwise AND and a bitwise IOR in memory.

2006-04-27  Richard Guenther  <rguenther@suse.de>

	PR rtl-optimization/26685
	* params.def (PARAM_MAX_CSE_INSNS): Correct typo that named
	this one "max-flow-memory-locations".

2006-04-27  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/25148
	* tree-vrp.c (compare_values): Remove code dealing with
	comparisons against type min/max value.  Honour overflow
	and negative constants in code dealing with comparisons
	of plus and minus expressions.
	(value_inside_range): Use fold_binary with LE_EXPR and
	GE_EXPR rather than compare_values.

2006-04-27  Dirk Mueller  <dmueller@suse.de>

	* config/i386/xmmintrin.h (_mm_shuffle_pi16): Declare
	prototype for SSE.

2006-04-26  Kenneth Zadeck <zadeck@naturalbridge.com>

	* basic-block.h (safe_insert_insn_on_edge): Removed.
	* cfgrtl.c (mark_killed_regs, safe_insert_insn_on_edge): Removed.

2006-04-26  David Edelsohn  <edelsohn@gnu.org>
	    Paolo Bonzini  <bonzini@gnu.org>

	PR middle-end/27282
	* combine.c (simplify_and_const_int_1): Use gen_int_mode.
	(simplify_and_const_int): Same.

2006-04-26  Aldy Hernandez  <aldyh@redhat.com>

	* tree-ssa-dse.c (dse_optimize_stmt): Remove unused variable USE.

2006-04-26  Jakub Jelinek  <jakub@redhat.com>

	PR c/26171
	* cgraph.c (cgraph_varpool_finalize_decl): Don't call
	cgraph_varpool_assemble_pending_decls if -fopenmp, unless
	cgraph_global_info_ready.

	PR middle-end/26913
	* tree-cfg.c (find_outermost_region_in_block): Handle RESX_EXPR.

	PR c/25996
	* c-parser.c (c_parser_omp_for_loop): Don't call c_finish_omp_for if
	either decl or init is error_mark_node.

	PR middle-end/25989
	* tree-flow.h (struct omp_region): Add sched_kind.
	* omp-low.c (expand_parallel_call): Use region->inner->sched_kind
	instead of extracting omp for data.
	(expand_omp_for): Save extracted sched_kind.

2006-04-25  Roger Sayle  <roger@eyesopen.com>

	* expmed.c (store_bit_field): Also check whether the bitsize is
	valid for the machine's "insv" instruction before moving the
	target into a pseudo for use with the insv.
	* config/i386/predicates.md (const8_operand): New predicate.
	* config/i386/i386.md (extv, extzv, insv): Use the new
	const8_operand predicate where appropriate.

2006-04-25  DJ Delorie  <dj@redhat.com>

	* doc/install.texi (Specific): Clarify that this is not a list of
	supported hosts or targets.

2006-04-25  Richard Sandiford  <richard@codesourcery.com>

	PR rtl-optimization/26725
	* cfgrtl.c (rtl_redirect_edge_and_branch_force): Set the source
	block's BB_DIRTY flag.

2006-04-25  Geoffrey Keating  <geoffk@apple.com>

	* dwarf2out.c (size_of_locs): Don't fill dw_loc_addr if there
	are no branches.

	* dwarf2asm.c (dw2_asm_output_data): Don't generate RTL just
	to print an integer.

2006-04-25  David Edelsohn  <edelsohn@gnu.org>

	* varasm.c (align_variable): New function.
	(get_block_for_decl): Apply align_variable to DECL before
	calculating section information.
	(assemble_variable): Split out alignment computation.

2006-04-25  Andreas Krebbel  <krebbel1@de.ibm.com>

	* expmed.c (store_bit_field): Handle paradoxical subregs on big endian
	machines.

2006-04-25  Bernd Schmidt  <bernd.schmidt@analog.com>

	* genmodes.c (make_vector_mode): Allow making VECTOR_MODE_INT of a
	MODE_PARTIAL_INT mode.
	* config/bfin/bfin-modes.def: Add V2PDI and V2SI.
	* config/bfin/bfin.c (print_operand): Add macflag and mac/msu modifiers
	for CONST_INTs.
	(hard_regno_mode_ok): V2PDImode is ok for accumulators.
	* config/bfin/bfin.h (CLASS_MAX_NREGS, HARD_REGNO_NREGS): Handle
	V2PDImode.
	* config/bfin/predicates.md (const01_operand, vec_shift_operand):
	New predicates.
	* config/bfin/bfin.md (UNSPEC_MUL_WITH_FLAG, UNSPEC_MAC_WITH_FLAG):
	New constants.
	(MACFLAG_NONE, MACFLAG_T, MACFLAG_FU, MACFLAG_TFU, MACFLAG_IS,
	MACFLAG_IU, MACFLAG_W32, MACFLAG_M, MACFLAG_S2RND, MACFLAG_ISS2,
	MACFLAG_IH): Likewise.
	(movstricthi_1): Renamed from "*movstricthi".
	(load_accumulator, load_accumulator_pair, movsi_insv, insv,
	ssaddsi3, sssubsi3, ssnegsi2, signbitssi2, smaxhi3, sminhi3,
	abshi2, neghi2, ssneghi2, signbitshi2, movhi_low2high,
	movhi_high2high, movhi_low2low, movhi_high2low, movhiv2hi_low,
	movhiv2hi_high, composev2hi, movv2hi_hi, movv2hi_hi_low,
	movv2hi_hi_high, ssaddhi3, sssubhi3, ssaddv2hi3, sssubv2hi3,
	addsubv2hi3, subaddv2hi3, ssaddsubv2hi3, sssubaddv2hi3,
	sublohiv2hi3, subhilov2hi3, sssublohiv2hi3, sssubhilov2hi3,
	addlohiv2hi3, addhilov2hi3, ssaddlohiv2hi3, ssaddhilov2hi3,
	mulhisi_ll, mulhisi_lh, mulhisi_hl, mulhisi_hh, ssnegv2hi2,
	ssashiftv2hi3, ssashifthi3, lshiftv2hi3, lshifthi3, packv2hi,
	flag_mulhi, flag_mulhisi_parts, flag_machi, flag_machi_acconly,
	flag_macinithi, flag_macinit1hi, flag_mulv2hi, flag_mulv2hi_parts,
	flag_macv2hi_parts, flag_macv2hi_parts_acconly,
	flag_macinitv2hi_parts, flag_macinit1v2hi_parts): New patterns.

	* doc/rtl.texi (ss_ashift): Improve wording.

2006-04-24  Geoffrey Keating  <geoffk@apple.com>

	* dwarf2out.c (verify_marks_clear): New.
	(prune_unused_types): Call verify_marks_clear initially, not
	prune_unmark_dies.

2006-04-24  Bernd Schmidt  <bernd.schmidt@analog.com>

	* rtl.def (SS_ASHIFT, SS_NEG): New codes.
	* doc/rtl.texi: Document them.
	* simplify-rtx.c (simplify_unary_operation,
	simplify_binary_operation_1): Don't abort when we see them.

2006-04-24  Mark Mitchell  <mark@codesourcery.com>

	Revert:
	2006-04-23  Mark Mitchell  <mark@codesourcery.com>
	* configure.ac: Completely disregard languages that are not
	enabled.
	* configure: Regenerated.

2006-04-24  Andrew Pinski  <pinskia@gcc.gnu.org>
	Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/27236
	* tree-inline.c (copy_body_r): Make sure to copy
	TREE_THIS_VOLATILE flag.

2006-04-24  Richard Guenther  <rguenther@suse.de>

	PR middle-end/26869
	* tree-complex.c (update_parameter_components): Don't handle
	unused parameters which have no default def.

2006-04-24  Andrew Pinski  <pinskia@gcc.gnu.org>
	Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/27218
	* tree-inline.c (expand_call_inline): Strip useless type
	conversions for the return slot address.

2006-04-24  Richard Guenther  <rguenther@suse.de>

	* cfgloop.h (struct loops): Remove unused field array.  Reorder
	state after num.
	(LOOP_PREFETCH): Remove.

2006-04-24  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/22525
	* value-prof.c (tree_mod_pow2): Remove unnecessary temporary
	variable, adjust types of generated expressions.

2006-04-23  H.J. Lu  <hongjiu.lu@intel.com>

	* Makefile.in (c-convert.o): Add dependency on $(TARGET_H)
	(tree-vect-patterns.o): Likewise.
	(jump.o): Likewise.
	(cselib.o): Likewise.
	(loop-doloop.o): Likewise.
	(regclass.o): Likewise.
	(reload1.o): Likewise.
	(explow.o): Replace target.h with $(TARGET_H).
	(ipa-prop.o): Likewise.
	(ipa-cp.o): Likewise.
	(ipa-inline.o): Likewise.
	(reorg.o): Likewise.
	(reg-stack.o): Likewise.

2006-04-23  Eric Botcazou  <ebotcazou@adacore.com>

	* tree-tailcall.c (pass_tail_recursion): Use gate_tail_calls too.

2006-04-23  Mark Mitchell  <mark@codesourcery.com>

	* print-tree.c (print_node): Print DECL_BIT_FIELD_TYPE.

	* configure.ac: Completely disregard languages that are not
	enabled.
	* configure: Regenerated.

	PR c++/26534
	* c-common.h (c_build_bitfield_integer_type): Declare.
	* c-decl.c (c_build_bitfield_integer_type): Move to ...
	* c-common.c (c_build_bitfield_integer_type): ... here.

2006-04-23  Roger Sayle  <roger@eyesopen.com>

	PR target/21283
	* config/fr30/fr30.md (define_split): Avoid calling gen_lowpart on
	a SImode SUBREG of a floating point register after no_new_pseudos.

2006-04-23  Roger Sayle  <roger@eyesopen.com>

	* config/fr30/fr30.md (addsi_small_int): Use REGNO_PTR_FRAME_P to
	identify potentially eliminable registers to additionally catch
	VIRTUAL_INCOMING_ARGS_REGNUM.
	(addsi3): Update the conditions on when to use addsi_small_int.

2006-04-23  Roger Sayle  <roger@eyesopen.com>

	PR target/16641
	* config/fr30/fr30.h (GO_IF_LEGITIMATE_ADDRESS): Check REGNO for
	STACK_POINTER_RTX and FRAME_POINTER_RTX instead of comparing the
	rtx to stack_pointer_rtx or frame_pointer_rtx directly.

2006-04-23  Eric Botcazou  <ebotcazou@adacore.com>

	* fold-const.c (range_predecessor): Use operand_equal_p
	as the predicate for equality.
	(range_successor): Likewise.

2006-04-22  Kazu Hirata  <kazu@codesourcery.com>

	Revert:
	* config/soft-fp/op-common.h: Fix a typo.

2006-04-22  Frank Ch. Eigler  <fche@redhat.com>

	PR libmudflap/26864
	* common.opt (flag_mudflap_threads): Overload flag_mudflap.
	* tree-mudflap.c (flag_mudflap_threads): Derive from flag_mudflap.

2006-04-22  Kazu Hirata  <kazu@codesourcery.com>

	* config/soft-fp/op-common.h, double-int.h, tree-ssa-dom.c:
	Fix comment typos.
	* doc/tm.texi: Fix a typo.

2006-04-21  Geoffrey Keating  <geoffk@apple.com>

	* dwarf2out.c (struct die_struct): Document that die_sib makes
	a circular linked list.
	(FOR_EACH_CHILD): New.
	(reverse_die_lists): Delete.
	(reverse_all_dies): Delete.
	(add_dwarf_attr): Correct documentation.
	(remove_child_with_prev): New.
	(remove_child_TAG): Update for change to die_struct, use
	remove_child_with_prev.
	(add_child_die): Update for change to die_struct.
	(splice_child_die): Use remove_child_with_prev and add_child_die.
	(print_die): Use FOR_EACH_CHILD.
	(die_checksum): Likewise.
	(assign_symbol_names): Likewise.
	(output_location_lists): Likewise.
	(build_abbrev_table): Likewise.
	(calc_die_sizes): Likewise.
	(mark_dies): Likewise.
	(unmark_dies): Likewise.
	(unmark_all_dies): Likewise.
	(output_die): Likewise.
	(prune_unused_types_mark): Likewise.
	(prune_unused_types_walk): Likewise.
	(same_die_p): Update for change to die_struct.
	(break_out_includes): Likewise.
	(prune_unused_types_prune): Likewise.
	(add_sibling_attributes): Use FOR_EACH_CHILD, simplify logic.
	(prune_unmark_dies): Use FOR_EACH_CHILD, don't clear die_mark if
	it's already clear.
	(dwarf2out_finish): Don't call reverse_all_dies.

2006-04-21  Eric Christopher  <echristo@apple.com>

	* df-core.c, tree-outof-ssa.c, config/i386/i386.c: Fix typos
	in comments and function names.

2006-04-21  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

	PR c/25875
	* c-typeck.c (digest_init): Robustify.

	* c-typeck.c (pop_init_level): Simplify.

2006-04-21  Steve Ellcey  <sje@cup.hp.com>

	* config/pa/t-pa64: Add dependencies on $(GCC_PASSES).

2006-04-21  Paul Brook  <paul@codesourcery.com>

	* config/arm/arm.c (arm_override_options): Error on iWMMXt and
	hardware floating point.

2006-04-21  David Edelsohn  <edelsohn@gnu.org>

	* config/rs6000/rs6000.h (REG_CLASS_CONTENTS): Add sfp to
	NON_FLOAT_REGS.

2006-04-21  Nick Clifton  <nickc@redhat.com>

	* config/sh/t-elf (EXTRA_MULTILIB_PARTS): Include
	OPT_EXTRA_PARTS.

2006-04-21  Alan Modra  <amodra@bigpond.net.au>

	PR target/27230
	* config/rs6000/rs6000.c (rs6000_output_function_epilogue): Use
	C++ lang type in traceback table for Objective-C++.

	* config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Update comment.

2006-04-20  H.J. Lu  <hongjiu.lu@intel.com>

	* config/i386/i386.c (asm_preferred_eh_data_format): Reformat.

2006-04-20  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

	PR mudflap/26789
	* tree-mudflap.c (mudflap_finish_file): Skip function when there
	were errors.  Remove check for erroneous objects.

2006-04-20  Jeff Law  <law@redhat.com>

	PR tree-optimization/26854
	* tree-ssa-dse.c (dse_optimize_stmt): Avoid num_imm_uses when
	checking for zero or one use.
	* tree-ssa-dom.c (propagate_rhs_into_lhs): Similarly.
	* tree-cfgcleanup.c (merge_phi_nodes): Similarly.
	* tree-ssa-reassoc.c (negate_value): Similarly.
	(reassociate_bb): Similarly.

2006-04-20  Jakub Jelinek  <jakub@redhat.com>

	* c-pretty-print.c (pp_c_direct_abstract_declarator): Print
	TYPE_MAX_VALUE (TYPE_DOMAIN (t)) + 1 for ARRAY_TYPE rather
	than plain TYPE_MAX_VALUE (TYPE_DOMAIN (t)).

2006-04-20  Alan Modra  <amodra@bigpond.net.au>

	* config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Consume all
	fp regs if the last fp arg doesn't fit in regs.

2006-04-20  Kaz Kojima  <kkojima@gcc.gnu.org>

	PR target/27182
	* config/sh/sh.md (movsicc_true+3): Tweak condition for the case
	that the last insn has the REG_INC note.

2006-04-19  Carlos O'Donell  <carlos@codesourcery.com>
	    Nathan Sidwell  <nathan@codesourcery.com>

	PR c/26774
	* stor-layout.c (update_alignment_for_field): Do not align
	ERROR_MARK nodes.
	(place_union_field): Place union field at the start of the union.
	(place_field): Move ERROR_MARK check later, and use the current
	allocation position to maintain monotonicity.

2006-04-19  Zdenek Dvorak <dvorakz@suse.cz>

	* dominance.c: Include timevar.h.
	(calculate_dominance_info): Use TV_DOMINANCE.
	* timevar.def (TV_DOMINANCE): New timevar.
	* Makefile.in (dominance.o): Add TIMEVAR_H dependency.

2006-04-19  Andreas Krebbel  <krebbel1@de.ibm.com>

	PR rtl-optimization/14261
	* ifcvt.c (noce_emit_move_insn): Call store_bit_field if the resulting
	move would be an INSV insn.
	(noce_process_if_block): Don't optimize if the destination is a
	ZERO_EXTRACT which can't be handled by noce_emit_move_insn.

2006-04-19  Andreas Krebbel  <krebbel1@de.ibm.com>

	* config/s390/s390.md: Add comments with the instructions emitted
	by an insn pattern if macros are used.

2006-04-19  Alan Modra  <amodra@bigpond.net.au>

	PR rtl-optimization/26026
	* fold-const.c (fold_binary): Optimize div and mod where the divisor
	is a known power of two shifted left a variable amount.

2006-04-18  Geoffrey Keating  <geoffk@apple.com>

	* dwarf2out.c (prune_unused_types_update_strings): Don't add strings
	to hash table twice when the debug_str section has SECTION_MERGE.

2006-04-18  Joseph S. Myers  <joseph@codesourcery.com>

	* config/soft-fp: New directory.  From glibc.
	* config/soft-fp/t-softfp: New.
	* config/soft-fp/README: New.
	* mklibgcc.in: Handle LIB2FUNCS_EXCLUDE.
	* Makefile.in (LIB2FUNCS_EXCLUDE, SFP_MACHINE): New.
	(libgcc.mk): Pass LIB2FUNCS_EXCLUDE.
	(LIBGCC_DEPS): Add $(SFP_MACHINE).
	* config.gcc: Use rs6000/t-fprules-fpbit or
	rs6000/t-fprules-softfp and soft-fp/t-softfp together with
	rs6000/t-fprules.
	* config/rs6000/sfp-machine.h: New.  Based on glibc.
	* config/rs6000/t-fprules-fpbit, config/rs6000/t-fprules-softfp:
	New.
	* config/rs6000/t-fprules: Remove fp-bit rules.
	* config/rs6000/t-ppccomm (LIB2FUNCS_EXTRA): Use +=.
	* config/rs6000/t-linux64: Likewise.  Remove duplicates from
	LIB2FUNCS_EXTRA.  Remove fp-bit rules.
	(softfp_wrap_start, softfp_wrap_end): New.

2006-04-18  DJ Delorie  <dj@redhat.com>

	* config/m32c/m32c.h (PTRDIFF_TYPE): Define.

2006-04-18  Devang Patel  <dpatel@apple.com>

	* doc/invoke.texi (-Wuninitialized): Clarify -O connection.

2006-04-18  Nick Clifton  <nickc@redhat.com>

	* config/sh/t-symbian: Add rule to build sh-c.o
	* config/sh/symbian.c (sh_symbian_mark_dllexport): Replace use
	of DECL_NON_ADDR_CONST_P with DECL_DLLIMPORT_P.
	(sh_symbian_encode_section_info): Likewise.

2006-04-18  Andreas Krebbel  <krebbel1@de.ibm.com>

	* builtins.c (expand_builtin_strcmp): Cover label definition of
	do_libcall with HAVE_cmpstrnsi.

2006-04-18  Kazu Hirata  <kazu@codesourcery.com>

	* function.c (temp_slots_at_level, max_slot_level): Use VEC
	instead of VARRAY.
	* function.h (temp_slot_p): New.
	(function): Change the type of x_used_temp_slots to
	VEC(temp_slot_p,gc) *.

2006-04-18  Nick Clifton  <nickc@redhat.com>

	* config/mmix/mmix.h (OPTIMIZATION_OPTIONS): Remove reference to
	flag_strength_reduce.

	* doc/tm.texi (TARGET_SECTION_TYPE_FLAGS): Fix typo.

2006-04-18  Paolo Bonzini  <bonzini@gnu.org>

	PR target/27117

	Partial revert of revision 112637
	2006-04-03  Paolo Bonzini  <bonzini@gnu.org>
		    Dale Johannesen  <dalej@apple.com>

	PR target/19653
	* regclass.c (struct reg_pref): Update documentation.
	(regclass): Set prefclass to NO_REGS if memory is the best option.
	(record_reg_classes): Cope with a prefclass set to NO_REGS.

2006-04-18  Paolo Bonzini  <bonzini@gnu.org>

	PR tree-optimization/26821
	* tree-ssa-math-opts.c (get_constant_one): New.
	(insert_reciprocals): Use it.

2006-04-17  Geoffrey Keating  <geoffk@apple.com>

	* dwarf2out.c (free_AT): Delete.
	(remove_AT): Update string ref counts.
	(remove_child_TAG): Don't call free_die.
	(free_die): Delete.
	(break_out_includes): Don't call free_die on DW_TAG_GNU_BINCL
	or DW_TAG_GNU_EINCL.
	(prune_unused_types_walk_attribs): Reset string refcounts.
	(prune_unused_types_update_strings): New.
	(prune_unused_types_prune): Don't make unnecessary stores.  Don't
	call free_die.  Do call prune_unused_types_update_strings.
	(prune_unused_types): Empty debug_str_hash.

2006-04-17  Roger Sayle  <roger@eyesopen.com>

	* expr.c (expand_assignment): Optimize away no-op moves where the
	source and destination are equal and have no side-effects.

2006-04-17  Richard Guenther  <rguenther@suse.de>

	PR target/26826
	* reload.c (push_reload): Guard calls to get_secondary_mem
	for memory subregs.

2006-04-16  Kazu Hirata  <kazu@codesourcery.com>

	* alias.c (reg_base_value, old_reg_base_value): Change the
	type to VEC(rtx,gc) *.
	(REG_BASE_VALUE, find_base_value, record_set,
	init_alias_analysis): Use VEC instead of VARRAY.

	* alias.c (alias_sets): Change the type to
	VEC(alias_set_entry,gc) *.
	(get_alias_set_entry, new_alias_set, record_alias_subset): Use
	VEC instead of VARRAY.
	(last_alias_set): Remove.

	* cgraph.h (cgraph_edge_p): New.
	Update the prototype of cgraph_function_versioning.
	* cgraphunit.c (cgraph_copy_node_for_versioning,
	cgraph_function_versioning): Use VEC instead of VARRAY.
	* ipa-cp.c (ipcp_insert_stage): Likewise.

2006-04-16  Roger Sayle  <roger@eyesopen.com>

	PR target/26961
	* fold-const.c (fold_ternary): When converting "A ? B : C" into either
	"A op B" or "A op C", we may need to convert A to the type of B and C.

2006-04-16  Adam Nemet  <anemet@caviumnetworks.com>

	* target.h (struct gcc_target): Add mode_rep_extended.
	* rtlanal.c (num_sign_bit_copies_in_rep): New global.
	(init_num_sign_bit_copies_in_rep): Initialize it using
	mode_rep_extended.
	(truncate_to_mode): Use it.
	(init_rtlanal): Call init_num_sign_bit_copies_in_rep.
	* targhooks.h (default_mode_rep_extended): Declare it.
	* targhooks.c (default_mode_rep_extended): Define it.
	* target-def.h (TARGET_MODE_REP_EXTENDED): New macro.  Default to
	default_mode_rep_extended.
	(TARGET_INITIALIZER): Include it.
	* doc/tm.texi (Misc): Document it.
	* config/mips/mips.c (TARGET_TRUNCATED_TO_MODE): Override it.
	(mips_truncated_to_mode): New function.

2006-04-16  Roger Sayle  <roger@eyesopen.com>

	PR middle-end/25474
	* expr.c (compress_float_constant): Copy the narrow constant into
	a new pseudo before extending it to its final width.

2006-04-16  Roger Sayle  <roger@eyesopen.com>
	    Andrew Pinski  <pinskia@gcc.gnu.org>
	    Dale Johannesen  <dalej@apple.com>

	PR target/24076
	* config/i386/i386.c (ix86_expand_vector_init_duplicate): Add
	special case code to implement V8HImode and V16QImode with SSE2.

2006-04-15  Roger Sayle  <roger@eyesopen.com>

	* config/i386/i386.c (ix86_va_start): Ensure all integer constant
	trees are constructed with a suitable tree type.

2006-04-15  Roger Sayle  <roger@eyesopen.com>

	* tree.c (integer_zerop): Ignore TREE_CONSTANT_OVERFLOW.
	(integer_onep): Likewise.
	(integer_all_onesp): Likewise.
	(integer_pow2p): Likewise.
	(integer_nonzerop): Likewise.
	(real_zerop): Likewise.
	(real_onep): Likewise.
	(real_twop): Likewise.
	(real_minus_onep): Likewise.
	(int_size_in_bytes): Likewise.
	(host_integerp): Likewise.

2006-04-15  Kazu Hirata  <kazu@codesourcery.com>

	* cfgcleanup.c, config/dfp-bit.c, expr.c, fold-const.c,
	jump.c, mips-tfile.c, omp-low.c, sched-int.h,
	tree-ssa-loop-prefetch.c, tree-vrp.c: Fix comment typos.

	* tree-ssa-structalias.h (alias_info): Remove num_references.

2006-04-15  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

	* pa.md (output_bb patterns): Shorten long branch alternatives by 4.
	(output_bvb patterns): Likewise.
	* pa.c (output_bb): Use 'bb' insn for long branch case.
	(output_bvb): Likewise use '{bvb|bb}' for long branch case.
	(output_dbra): Use '{comb|cmpb}' for long branch case for alternative
	1.  Correct length operand for alternatives 1 and 2.
	(output_movb): Use '{comb|cmpb}' for long branch case for alternatives
	1, 2 and 3.  Correct length operand for alternatives 1, 2 and 3.

2006-04-14  Roger Sayle  <roger@eyesopen.com>

	* tree-cfg.c (make_edges, make_omp_sections_edges, move_stmt_r,
	is_ctrl_altering_stmt): Reinstate RTH's changes from r112935 that
	were accidentally reverted by r112959.

2006-04-15  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/26823
	* except.h (eh_region_outermost): New prototype.
	* except.c (eh_region_outermost): New function.
	* tree-cfg.c (find_outermost_region_in_block): Use it.

2006-04-14  Kazu Hirata  <kazu@codesourcery.com>

	* local-alloc.c (rest_of_handle_local_alloc): Use VEC instead
	of VARRAY.
	* reload1.c (reg_equiv_memory_loc_varray): Rename to
	reg_equiv_memory_loc_vec.  Change the type to VEC(rtx,gc) *.
	(init_reload, reload): Use VEC instead of VARRAY.
	* reload.h: Update the prototype for
	reg_equiv_memory_loc_varray.

2006-04-14  Alexey Starovoytov  <alexey.starovoytov@sun.com>
	    Eric Botcazou  <ebotcazou@libertysurf.fr>

	* config/sparc/sparc.c (emit_and_preserve): Allocate space for the
	register save area.

2005-04-13  Uros Bizjak  <uros@kss-loka.si>

	PR middle-end/27134
	* builtins.c (expand_builtin_int_roundingfn): Use expand_normal()
	to expand fallback builtin function call.

2006-04-14  Alan Modra  <amodra@bigpond.net.au>

	PR middle-end/27095
	* builtins.c: (expand_builtin_memset): Stabilize args before expansion
	and emit libcall here in case the builtin fails.
	(expand_builtin_strcmp): Always emit the libcall here on failure.

2006-04-14  Kazu Hirata  <kazu@codesourcery.com>

	* basic-block.h (REG_BASIC_BLOCK): Use VEC instead of VARRAY.
	* flow.c (reg_n_info): Change the type to
	VEC(reg_info_p,heap) *.
	* regclass.c (allocate_reg_info, free_reg_info): Use VEC
	instead of VARRAY.
	* regs.h (reg_info_p): New.
	(REG_N_REFS, REG_FREQ, REG_N_SETS, REG_N_DEATHS,
	REG_N_CALLS_CROSSED, REG_N_THROWING_CALLS_CROSSED,
	REG_LIVE_LENGTH, REGNO_FIRST_UID, REGNO_LAST_UID): Use VEC
	instead of VARRAY.

2006-04-13  Eric Botcazou  <ebotcazou@adacore.com>

	* params.def (PARAM_MAX_SCHED_READY_INSNS): New parameter,
	defaulting to 100.
	* params.h (MAX_SCHED_READY_INSNS): New macro.
	* haifa-sched.c: (queue_to_ready): Re-queue insns for the next cycle
	past MAX_SCHED_READY_INSNS during the first scheduling pass.
	(schedule_block): Delay insns past MAX_SCHED_READY_INSNS in
	the ready list for 1 cycle during the first scheduling pass.
	* doc/invoke.texi (--param): New parameter max-sched-ready-insns.

2006-04-13  Richard Henderson  <rth@redhat.com>

	PR libgomp/26651
	* gimple-low.c (lower_omp_directive): Remove dead code.
	(lower_stmt): Do nothing except for openmp, except for OMP_PARALLEL.
	* gimplify.c (gimplify_expr): Update for OMP_RETURN, OMP_CONTINUE.
	* omp-low.c (struct omp_region): Move to tree-flow.h.
	(root_omp_region): Export.
	(omp_regions, lookup_omp_region): Remove.
	(determine_parallel_type): Update for struct omp_region changes.
	(dump_omp_region): Dump regions with block numbers.
	(new_omp_region): Take type and block instead of stmt; malloc
	instead of ggc.
	(free_omp_region_1, free_omp_regions): New.
	(expand_parallel_call): Take entry_stmt as argument; update for
	changes to omp_region.
	(remove_exit_barrier): Rewrite to update OMP_RETURN_NOWAIT.
	(remove_exit_barriers): New.
	(expand_omp_parallel): Update for struct omp_region changes.
	(expand_omp_synch): Likewise.
	(expand_omp): Likewise.
	(expand_omp_for_static_nochunk): Likewise; update for OMP_CONTINUE.
	(expand_omp_for_static_chunk): Likewise.
	(expand_omp_for): Likewise.
	(expand_omp_for_generic): Likewise; emit the proper GOMP_loop_end call.
	(expand_omp_sections): Similarly, with GOMP_sections_end.
	(expand_omp_single): New.
	(build_omp_regions_1): Update for OMP_CONTINUE.
	(execute_expand_omp): Call remove_exit_barriers, free_omp_regions.
	(lower_omp_sections): Expand with OMP_CONTINUE, do not collect
	OMP_SECTIONS_SECTIONS.
	(lower_omp_single_simple): Don't emit barrier here.
	(lower_omp_single_copy): Likewise.
	(lower_omp_single): Fix bindings, and lower to straightline now.
	(lower_omp_master, lower_omp_ordered): Likewise.
	(lower_omp_critical): Likewise.
	(lower_omp_for): Likewise.  Emit OMP_CONTINUE.
	* tree-cfg.c (make_edges): Collect an omp_region tree, use it for
	omp edges, free it afterward.
	(make_omp_sections_edges): Remove.
	(is_ctrl_altering_stmt): Don't bother checking flag_openmp.
	(move_stmt_r): Handle OMP_CONTINUE.
	* tree-flow.h (struct omp_region): Move from omp-low.c.  Switch
	statement pointers to basic blocks.  Add type member.
	(root_omp_region, new_omp_region, free_omp_regions): Declare.
	* tree-gimple.c (is_gimple_stmt): Handle OMP_RETURN, OMP_CONTINUE.
	* tree-inline.c (estimate_num_insns_1): Likewise.
	* tree-pretty-print.c (dump_generic_node): Likewise.
	* tree-ssa-operands.c (get_expr_operands): Likewise.
	* tree.def (OMP_SECTIONS): Remove OMP_SECTIONS_SECTIONS operand.
	(OMP_RETURN): Rename from OMP_RETURN_EXPR.
	(OMP_CONTINUE): New.
	* tree.h (OMP_DIRECTIVE_P): Add OMP_CONTINUE.
	(OMP_SECTIONS_SECTIONS): Remove.
	(OMP_SECTION_LAST): New.
	(OMP_RETURN_NOWAIT): New.

2006-04-13  Roger Sayle  <roger@eyesopen.com>

	* fold-const.c (native_encode_vector, native_interpret_real):
	Correct obvious mistakes in the previous check-in.

2006-04-13  Roger Sayle  <roger@eyesopen.com>

	* fold-const.c (native_encode_expr): New function to encode
	the target representation of an INTEGER_CST, REAL_CST, COMPLEX_CST
	or VECTOR_CST into a specified buffer.
	(native_encode_int): New function.
	(native_encode_real): New function.
	(native_encode_complex): New function.
	(native_encode_vector): New function.
	(native_interpret_expr): Inverse of native_encode_expr to convert
	a target representation into an INTEGER_CST, REAL_CST etc...
	(native_interpret_int): New function.
	(native_interpret_real): New function.
	(native_interpret_complex): New function.
	(native_interpret_vector): New function.
	(fold_view_convert_expr): New function to constant fold/evaluate
	a VIEW_CONVERT_EXPR of a suitable constant expression.
	(fold_unary) <VIEW_CONVERT_EXPR>: Call fold_view_convert_expr.
	Change call of build1 to fold_build1 when constructing a
	VIEW_CONVERT_EXPR.

2006-04-13  Paolo Bonzini  <bonzini@gnu.org>
	    Ulrich Weigand  <uweigand@de.ibm.com>

	PR target/27006
	* config/rs6000/rs6000.h (EASY_VECTOR_15_ADD_SELF): Require n
	to be even.

2006-04-13  Alan Modra  <amodra@bigpond.net.au>

	PR target/26459
	* config/rs6000/rs6000.c (rs6000_legitimize_reload_address): Don't
	optimize to lo_sum for DFmode if !TARGET_FPRS.

2006-04-12  Kazu Hirata  <kazu@codesourcery.com>

	* tree-ssa-alias.c (set_initial_properties, init_alias_info,
	delete_alias_info, compute_flow_sensitive_aliasing,
	group_aliases): Use VEC instead of VARRAY.
	* tree-ssa-structalias.c (update_alias_info): Likewise.
	* tree-ssa-structalias.h (alias_info): Change the type of
	processed_ptrs to VEC(tree,heap) *.

2006-04-12  J"orn Rennecke <joern.rennecke@st.com>

	PR target/27060
	* config/sh/lib1funcs.h: New file, broken out of:
	* config/sh/lib1funcs.asm.
	* config/sh/lib1funcs.h (DR00, DR01, DR20, DR21, DR40, DR41):
	New macros.
	* config/sh/lib1funcs.asm (udivsi3_i4): Use them.
	* config/sh/lib1funcs-Os-4-200.asm: New file.
	* config/sh/embed-elf.h (LIBGCC_SPEC): Use -lgcc-Os-4-200.
	* config/sh/t-sh (OPT_EXTRA_PARTS): New variable.
	(EXTRA_MULTILIB_PARTS): Include it.
	($(T)sdivsi3_i4i-Os-4-200.o): New rule.
	($(T)udivsi3_i4i-Os-4-200.o, $(T)libgcc-Os-4-200.a): Likewise.
	* config/sh/t-superh (EXTRA_MULTILIB_PARTS): Include OPT_EXTRA_PARTS.
	* config/sh/sh.h (OVERRIDE_OPTIONS): Recognize -mdiv=call-table for
	TARGET_SH2.

2006-04-12  Kazu Hirata  <kazu@codesourcery.com>

	* Makefile.in (TREE_SSA_LIVE_H): Add vecprim.h.
	* tree-ssa-live.c (tpa_init, tpa_remove_partition, tpa_delete,
	tpa_compact, root_var_init, type_var_init): Use VEC instead of
	VARRAY.
	* tree-ssa-live.h: Include vecprim.h.
	(tree_partition_associator_d): Change the type of
	first_partition to VEC(int,heap) *.
	(tpa_first_partition): Use VEC instead of VARRAY.

	* Makefile.in (GTFILES): Move functions.h after tree.h.
	* function.c (reset_block_changes, record_block_change,
	check_block_change, free_block_changes): Use VEC instead of
	VARRAY.
	* function.h (function): Change the type of
	ib_boundaries_block to VEC(tree,gc) *.
	* tree-inline.c (copy_cfg_body): Initialize
	ib_boundaries_block to NULL instead of (varray_type) 0.

2006-04-12  Roger Sayle  <roger@eyesopen.com>

	* expr.c (emit_group_store): Correct operand order in call to
	subreg_lowpart_offset.  Always create paradoxical SUBREGs with
	a SUBREG_BYTE of zero.

2006-04-12  Richard Guenther  <rguenther@suse.de>

	* profile.c (compute_branch_probabilities): Remove code
	encapsulated in !ir_type (), which are remanents of the
	removed RTL profiling code.
	* rtl-profile.c: Remove.

2006-04-12  Alan Modra  <amodra@bigpond.net.au>

	* config/rs6000/rs6000.c (rs6000_mixed_function_arg): Update
	magic NULL_RTX comment.
	(function_arg): Store entire fp arg to mem if any part should go
	on stack.
	(rs6000_arg_partial_bytes): Adjust for above change.

2006-04-11  Roger Sayle  <roger@eyesopen.com>

	* dwarf2out.c (output_call_frame_info): Create debug_frame_section
	if it hasn't been initialized by dwarf2out_init.

2006-04-11  John David Anglin  <dava.anglin@nrc-cnrc.gc.ca>

	* pa.md (MAX_12BIT_OFFSET, MAX_17BIT_OFFSET): Define and use new
	symbolic constants in branch patterns.

2006-04-11  Roger Sayle  <roger@eyesopen.com>

	* caller-save.c: #include "addresses.h" after #include "tm_p.h".

2006-04-11  Richard Sandiford  <richard@codesourcery.com>

	PR rtl-optimization/27073
	* gcse.c (try_replace_reg): Revert last change.  Continue to search
	for both REG_EQUAL and REG_EQUIV notes, but only perform replacements
	on the former.

2006-04-11  Eric Botcazou  <ebotcazou@libertysurf.fr>

	* config/sparc/sparc.c (function_arg_slotno) <BLKmode>: Handle
	aggregate types other than record and union types.
	(function_arg): Likewise.
	(function_arg_pass_by_reference): In 64-bit mode, return 0 for
	small arrays.
	(function_value): In 64-bit mode, return objects that require it
	in FP registers.

2006-04-11  Roger Sayle  <roger@eyesopen.com>

	* dwarf2out.c (premark_used_types): Remove problematic prototype.

2006-04-11  Jakub Jelinek  <jakub@redhat.com>

	* gcc.c (LINK_COMMAND_SPEC): Move link_gomp after %o.

2006-04-03  Jeff Law  <law@redhat.com>

	PR/27087
	* tree-ssa-copy.c (may_propagate_copy): Test flow sensitive
	alias information too.

2006-04-10  Mike Frysinger  <vapier@gentoo.org>

	* Makefile.in (gcc-cross): Add $(exeext) to target name.

2006-04-10  Aldy Hernandez  <aldyh@redhat.com>

	PR/21391
	* dwarf2out.c (struct die_struct): Add die_perennial_p field.
	(premark_used_types_helper): New.
	(premark_used_types): New.
	(gen_subprogram_die): Call premark_used_types.
	(prune_unused_types_walk): Do not prune perennial dies.
	* function.c (used_types_insert): New.
	* function.h (struct function): Add used_types_hash field.
	(used_types_insert): Add prototype.
	* Makefile.in (FUNCTION_H): Depend on HASHTAB_H.
	* c-parser.c (c_parser_cast_expression): Save casted types in used
	types hash table.

2006-04-11  Mark Mitchell  <mark@codesourcery.com>

	PR target/26459
	* config/rs6000/e500-double.h (SUB3TARGET_OVERRIDE_OPTIONS): Test
	rs6000_explicit_options.float_gprs.

2006-04-10  Roger Sayle  <roger@eyesopen.com>

	* config/i386/i386.c (ix86_expand_vector_init_one_nonzero): Renamed
	from ix86_expand_vector_init_low_nonzero.  Take an additional
	one_var argument indicating which element is non-zero.  Support
	one_var != 0 for V4SFmode and V4SImode by permuting the result.
	(ix86_expand_vector_init): Call ix86_expand_vector_init_one_nonzero
	with one_var instead of ix86_expand_vector_init_low_nonzero.

2006-04-10  Kazu Hirata  <kazu@codesourcery.com>

	* Makefile.in (tree-into-ssa.o, tree-outof-ssa.o,
	tree-ssa-live.o, tree-ssa-alias.o, function.o, df-problems.o,
	global.o, cfglayout.o, lambda-code.o, reg-stack.o,
	build/genextract.o): Depend on vecprim.h.
	* cfglayout.c, df-problems.c, function.c, genextract.c,
	global.c, lambda-code.c, reg-stack.c, tree-into-ssa.c,
	tree-outof-ssa.c, tree-ssa-alias.c, tree-ssa-live.c: Include
	vecprim.h.
	* vecprim.h: New.

2006-04-10  Geoffrey Keating  <geoffk@apple.com>

	* dwarf2out.c (struct dw_attr_struct): Remove dw_attr_next.
	Declare VECs of this type.
	(struct die_struct): Make field die_attr a VEC of dw_attr_struct.
	(remove_children): Delete.
	(add_dwarf_attr): Use VEC routines.
	(add_AT_flag): Update for changes to add_dwarf_attr.
	(add_AT_int): Likewise.
	(add_AT_unsigned): Likewise.
	(add_AT_long_long): Likewise.
	(add_AT_vec): Likewise.
	(add_AT_string): Likewise.
	(add_AT_die_ref): Likewise.
	(add_AT_fde_ref): Likewise.
	(add_AT_loc): Likewise.
	(add_AT_loc_list): Likewise.
	(add_AT_addr): Likewise.
	(add_AT_lbl_id): Likewise.
	(add_AT_lineptr): Likewise.
	(add_AT_macptr): Likewise.
	(add_AT_offset): Likewise.
	(add_AT_range_list): Likewise.
	(get_AT): Use VEC_iterate.
	(remove_AT): Use VEC_ordered_remove.
	(free_die): Fold remove_children into here; have it use VEC_iterate.
	(print_die): Use VEC_iterate on attrs.
	(reverse_die_lists): Don't reverse attr lists.
	(die_checksum): Use VEC_iterate on attrs.
	(same_die_p): Likewise.
	(output_location_lists): Likewise.
	(build_abbrev_table): Likewise.
	(size_of_die): Likewise.
	(unmark_all_dies): Likewise.
	(output_abbrev_section): Likewise.
	(output_die): Likewise.
	(prune_unused_types_walk_attribs): Likewise.

2006-04-10  Eric Botcazou  <ebotcazou@libertysurf.fr>

	* doc/install.texi (*-*-solaris2*): Point to the configure page.

2006-04-10  Jakub Jelinek  <jakub@redhat.com>

	PR debug/27057
	* dwarf2out.c (is_symbol_die): Return true also for namespaces.

2006-04-09  Roger Sayle  <roger@eyesopen.com>

	* expr.c (store_constructor): Don't bother clearing target if
	we're about to assign a vector to it using vec_init_optab.

2006-04-10 Daniel Berlin  <dberlin@dberlin.org>

	* tree-ssa-alias.c (lhs_may_store_to): New function.
	(recalculate_used_alone): Handle LHS of calls.

2006-04-09  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

	PR target/27034
	PR target/26508
	* config.gcc (hppa*64*-*-hpux11*): Add 'libgcc_stub.a' to extra_parts.
	* pa64-hpux.h (LIB_SPEC): Correct typo.  Don't append milli.a.
	(LINK_GCC_C_SEQUENCE_SPEC): Define.  Append milli.a here.
	(PA_CXA_FINALIZE_STUB, PA_JV_REGISTERCLASSES_STUB): Delete defines.
	(PA_INIT_FINI_HACK): Rename to PA_CRTBEGIN_HACK.
	(PA_CRTBEGIN_HACK): Ensure __do_global_ctors_aux is placed in text
	section.  Delete PA_CXA_FINALIZE_STUB and PA_JV_REGISTERCLASSES_STUB
	stubs.  Add ".align 8" directives before all ".dword" directives.
	(GTHREAD_USE_WEAK): Revise comment.
	(TARGET_ATTRIBUTE_WEAK): Define.
	* pa/t-pa64 (LIBGCCSTUB_OBJS): Add new rules for stublib.c, rfi-stub.o,
	dfi-stub.o, cxaf-stub.o and jvrc-stub.o.
	* stublib.c: New file.

	PR target/26743
	PR target/11254
	PR target/10274
	* pa.md (cbranch patterns): Revise arguments used in calls to
	output_cbranch, output_bb and output_bvd.  Add long branch length
	attributes.
	(fbranch patterns): Handle long branches.
	(jump): Revise length check.  Revise arguments for output_lbranch call.
	Add long branch length attributes.
	(decrement_and_branch_until_zero): Add long branch length attributes.
	(output_movb, output_parallel_addb and output_parallel_movb patterns):
	Likewise.  Revise arguments for output_parallel_addb and
	output_parallel_movb calls.
	* pa-protos.h (output_cbranch, output_lbranch, output_bb, output_bvb,
	output_parallel_movb and output_parallel_addb): Update prototypes.
	* pa.c (output_cbranch): Revise arguments.  Correct handling of
	nullification in long branches.
	(output_lbranch): Add new argument to control extraction of delay
	instruction.
	(output_bb): Handle long branches.
	(output_bvb, output_dbra, output_movb, output_parallel_movb,
	output_parallel_addb): Likewise.

2006-04-09  Richard Sandiford  <richard@codesourcery.com>

	PR rtl-optimization/27073
	* gcse.c (try_replace_reg): Just propagate into REG_EQUAL notes,
	not REG_EQUIVs.

2006-04-08  Daniel Berlin  <dberlin@dberlin.org>

	* tree.h (tree_memory_tag): Add old_used_alone.
	(SMT_OLD_USED_ALONE): New macro.
	* tree-ssa-alias.c (recalculate_used_alone): Stop
	marking things for renaming unnecessarily.

2006-04-08  Kazu Hirata  <kazu@codesourcery.com>

	* builtins.c, config/arm/arm.c, config/i386/cygwin.h,
	config/i386/i386.c, config/ia64/ia64.c, config/s390/fixdfdi.h,
	config/sh/sh.c, config/sh/sh.h, df-scan.c, except.c,
	haifa-sched.c, optabs.c, rtl.h, sched-deps.c, sched-int.h,
	sched-rgn.c, tree-inline.h, tree-ssa-dom.c,
	tree-ssa-loop-prefetch.c, tree-ssa-operands.c,
	tree-vect-patterns.c, tree-vrp.c: Fix comment typos.  Follow
	spelling convensions.
	* config/ia64/ia64.opt, doc/contrib.texi, doc/invoke.texi,
	doc/passes.texi, doc/tm.texi, doc/tree-ssa.texi: Fix comment
	typos.  Follow spelling conventions.

2006-04-07  DJ Delorie  <dj@redhat.com>

	* config/m32c/m32c.c (m32c_function_arg): Structures are always
	passed on the stack.
	(m32c_init_cumulative_args): When a function returns a structure,
	always pass the pointer to that return area on the stack.
	(m32c_function_arg_advance): Don't increment the parameter number
	if we're processing the returned structure pointer.
	(pushm_info): Reverse order of registers.

2006-04-07  Sebastian Pop  <pop@cri.ensmp.fr>

	* tree-ssa-loop-niter.c (inverse, number_of_iterations_ne,
	assert_no_overflow_lt, assert_loop_rolls_lt, number_of_iterations_lt,
	number_of_iterations_le, number_of_iterations_cond, find_loop_niter,
	estimate_numbers_of_iterations_loop): Use build_int_cst instead of
	build_int_cst_type.
	* tree-chrec.c (chrec_fold_multiply_poly_poly,
	chrec_fold_multiply): Same.
	* tree-ssa-loop-ivopts.c (strip_offset_1, force_expr_to_var_cost,
	force_expr_to_var_cost): Same.
	* tree-mudflap.c (mf_xform_derefs_1): Same.
	* tree-ssa-loop-prefetch.c (idx_analyze_ref): Same.

2006-04-07  David Edelsohn  <edelsohn@gnu.org>

	* config/rs6000/rs6000.c (rs6000_rtx_costs) <CONST_DOUBLE>: Do not
	treat CONST_DOUBLE as INTVAL.  and64_2_operands require an extra
	insn.

2006-04-07  Jan Hubicka  <jh@suse.cz>

	* ipa-inline.c (cgraph_early_inlining): Collect garbage.

2006-04-07  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/26135
	* tree-ssa-copy.c (stmt_may_generate_copy): Handle memory
	loads for store copy-prop.
	(copy_prop_visit_stmt): Likewise.

2006-04-05  Robert Millan  <robertmh@gnu.org>

	* config/i386/linux.h: Add a comment to mark macros that are
	being overriden in config/k*bsd-gnu.h.
	* config/kfreebsd-gnu.h: Redefine GLIBC_DYNAMIC_LINKER instead of
	DYNAMIC_LINKER.
	* config/knetbsd-gnu.h: Ditto.

2006-04-06  Jan Hubicka  <jh@suse.cz>

	PR profile/20815
	PR profile/26399
	* coverage.c (coverage_checksum_string): Reorganize loop to not read
	after buffer.

2006-04-06  Mike Stump  <mrs@apple.com>

	* builtins.c (expand_builtin_longjmp):Use #ifdef instead of #if
	for HAVE_nonlocal_goto to be consistent.
	(expand_builtin_nonlocal_goto): Likewise.
	(expand_builtin_strcmp): Use #ifdef instead of #if
	for HAVE_cmpstrnsi to be consistent.

2006-04-05  DJ Delorie  <dj@redhat.com>

	* config/m32c/m32c.h (INCOMING_FRAME_SP_OFFSET): Adjust for m16c
	vs m32c.

2006-04-05  Bernd Schmidt  <bernd.schmidt@analog.com>

	* config/bfin/bfin.c (bfin_legitimate_address_p): Disallow
	got-relative addressing for anything but SImode.

	* config/bfin/lib1funcs.asm (modsi): P1/P2 can be call-clobbered
	even if the calling function doesn't modify them.

2006-04-05  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/26919
	* ipa-inline.c (cgraph_decide_inlining_incrementally): Fix argument
	to cgraph_estimate_size_after_inlining.

2006-04-05  Alan Modra  <amodra@bigpond.net.au>

	* reload.c (find_dummy_reload): Fix typo in 2006-04-03 change.

2006-04-05  Sebastian Pop  <pop@cri.ensmp.fr>

	PR tree-optimization/26996
	* tree-scalar-evolution.c (analyze_scalar_evolution_1): Don't analyze
	VECTOR_TYPE variables.

2006-04-05  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/26763
	* fold-const.c (fold_comparison): Move folding of
	PTR + CST CMP PTR + CST ...
	(fold_binary): ... here.  Fold only for EQ_EXPR and NE_EXPR.

2006-04-05  Gerald Pfeifer  <gerald@pfeifer.com>

	* doc/install.texi (Prerequisites): Refine some wording on
	bootstrapping and ksh.
	Move the version numbers of DejaGnu here from the testing section
	and fix casing of names.
	Fix markup and clarify wording for autogen requirements.
	Refer to GCJ instead of just java.
	Refer to SVN instead of CVS.
	Describe diffutils as useful instead of necessary.
	(Downloading the source): Refer to SVN instead of CVS.
	Adjust a link to our web site accordingly.
	(Configuration): Fix casing of Bison.
	(Building): Refer to SVN instead of CVS.
	Fix a sentence on the use of Bison and remove duplicate (and
	incorrect) version number of Bison requirement.
	Remove one redundant list of packages needed for building.
	(Specific): Avoid reference to CVS.

2006-04-04  Eric Christopher  <echristo@apple.com>

	* config/rs6000/rs6000.c (TARGET_MS_BITFIELD_LAYOUT_P): Define.
	(TARGET_USE_MS_BITFIELD_LAYOUT): Ditto.
	(rs6000_handle_struct_attribute): New.
	(rs6000_ms_bitfield_layout_p): Ditto.

2006-04-04  Geoffrey Keating  <geoffk@apple.com>

	* config/darwin-crt3.c (atexit): Pass &__dso_handle rather than
	NULL for dso parameter to atexit_common.

2006-04-04  Eric Christopher  <echristo@apple.com>

	* config/i386/i386.c (machopic_output_stub): Output \t
	between instructions and operands.

2006-04-04  David Edelsohn  <edelsohn@gnu.org>

	* config/rs6000/rs6000.c (num_insns_constant_wide): Change
	satisfies_constraint_[IL] to explicit tests on value.

2006-04-04  Sebastian Pop  <pop@cri.ensmp.fr>

	* tree-scalar-evolution.c (compute_overall_effect_of_inner_loop,
	set_nb_iterations_in_loop): Use build_int_cst instead of
	build_int_cst_type.
	* tree-data-ref.c (can_use_analyze_subscript_affine_affine): Use
	build_int_cst instead of convert.

2006-04-04  Carlos O'Donell  <carlos@codesourcery.com>

	* doc/tm.texi (TARGET_STRUCT_VALUE_RTX): Document
	new value 2 for incoming.
	* function.c (expand_function_start): Call struct_value_rtx
	with incoming as 2.
	* config/sparc/sparc.md: Comment updated_return.
	* config/sparc/sparc.opt: Add -mstd-struct-return option.
	* config/sparc/sparc.c (sparc_struct_value_rtx): Use standard
	struct return if sparc_std_struct_return and incoming is 2.
	(print_operand): Do not adjust return if
	sparc_std_struct_return.

2006-04-04  Roger Sayle  <roger@eyesopen.com>

	* builtins.c (fold_builtin_sprintf): Use fold_convert instead of
	convert in the middle-end.
	* expr.c (store_expr, store_constructor, get_inner_reference,
	expand_expr_real_1, string_constant, try_casesi, try_tablejump):
	Likewise.
	* tree.c (build_range_type): Likewise.

2006-04-04  Tom Tromey  <tromey@redhat.com>

	* doc/install.texi (Prerequisites): Mention jar.

2006-04-04  Daniel Berlin  <dberlin@dberlin.org>

	* doc/tree-ssa.texi (Preserving the virtual ssa form): New
	subsection.

2006-04-04  Matthias Klose  <doko@debian.org>

	* Makefile.in (unprotoize.o): Same dependencies as for protoize.o.

	PR bootstrap/26764
	PR bootstrap/27334
	* Makefile.in (s-macro_list): Conform to POSIX rules in single quoted
	strings.

2006-04-03  Geoffrey Keating  <geoffk@apple.com>

	* doc/extend.texi (Function Attributes): Rewrite visibility
	attribute documentation.
	* doc/invoke.texi (C++ Dialect Options): Rewrite
	-fvisibility-inlines-hidden documentation to describe something
	entirely different, although in practise compatible.
	(Code Gen Options): Warn about system headers in -fvisibility=
	documentation.

	* doc/extend.texi (Other Builtins): Document that
	__builtin_nan is a compile-time constant only when its argument
	is valid.

2006-04-03  Adam Nemet  <anemet@caviumnetworks.com>

	* simplify-rtx.c (simplify_unary_operation_1) <TRUNCATE>: When
	trying to remove TRUNCATE check if all bits outside the new mode
	are identical to the sign bit.

2006-04-03  Jeff Law  <law@redhat.com>

	* tree-ssa-dom.c (propagate_rhs_into_lhs): Avoid useless folding
	and operand scanning in some common cases.

2006-04-03  Paolo Bonzini  <bonzini@gnu.org>
	    Dale Johannesen  <dalej@apple.com>

	PR target/19653
	* regclass.c (struct reg_pref): Update documentation.
	(regclass): Set prefclass to NO_REGS if memory is the best option.
	(record_reg_classes): Cope with a prefclass set to NO_REGS.
	* reload.c (find_reloads): Take PREFERRED_OUTPUT_RELOAD_CLASS
	into account.  For non-registers, equate an empty preferred
	reload class to a `!' in the constraint; move the if clause to
	do so after those that reject the insn.
	(push_reload): Allow PREFERRED_*_RELOAD_CLASS to liberally
	return NO_REGS.
	(find_dummy_reload): Likewise.
	* doc/tm.texi (Register Classes): Document what it means
	if PREFERRED_*_RELOAD_CLASS return NO_REGS.
	* config/i386/i386.c (ix86_preferred_reload_class): Force
	using SSE registers (and return NO_REGS for floating-point
	constants) if math is done with SSE.
	(ix86_preferred_output_reload_class): New.
	* config/i386/i386-protos.h (ix86_preferred_output_reload_class): New.
	* config/i386/i386.h (PREFERRED_OUTPUT_RELOAD_CLASS): New.
	* config/i386/i386.md: Remove # register preferences.

2006-04-02  Sebastian Pop  <pop@cri.ensmp.fr>

	PR bootstrap/26992
	* tree-scalar-evolution.c (compute_overall_effect_of_inner_loop,
	chrec_is_positive, set_nb_iterations_in_loop): Use a variable for
	the type of nb_iter.
	(instantiate_parameters_1): Convert the operands before calling
	chrec_fold_minus, chrec_fold_plus, or chrec_fold_multiply.
	* tree-data-ref.c (can_use_analyze_subscript_affine_affine): Same.

2006-04-02  Roger Sayle  <roger@eyesopen.com>

	* builtins.c (dummy_object): Use build_int_cst instead of convert.
	* tree-ssa-ccp.c (maybe_fold_stmt_addition): Use fold_convert
	instead of convert.
	* dojump.c (do_jump): Likewise.
	* expr.h (ADD_PARM_SIZE, SUB_PARM_SIZE, ARGS_SIZE_TREE): Likewise.
	* gimplify.c (gimple_boolify, gimplify_init_constructor,
	gimplify_boolean_expr): Likewise.
	* emit-rtl.c (set_mem_attributes_minus_bitpos): Likewise.
	* varasm.c (array_size_for_constructor): Likewise.
	* tree-object-size.c (compute_object_offset): Likewise.

2006-04-02  Roger Sayle  <roger@eyesopen.com>

	PR middle-end/26977
	* expr.c (emit_group_store): Check whether simplify_gen_subreg returns
	NULL_RTX, indicating it couldn't create a valid paradoxical subreg.

2006-04-02  Sebastian Pop  <pop@cri.ensmp.fr>

	PR tree-optimization/26939
	* tree-chrec.c (chrec_merge): Use eq_evolutions_p.

2006-04-02  Sebastian Pop  <pop@cri.ensmp.fr>

	* tree-scalar-evolution.c (add_to_evolution_1): Pass an extra argument
	at_stmt.  Convert the type of operands before calling
	build_polynomial_chrec.
	(add_to_evolution): Pass an extra argument at_stmt.  Adjust the call to
	add_to_evolution_1.
	(follow_ssa_edge_in_rhs): Adjust call to add_to_evolution.
	(instantiate_parameters_1): Convert the type of operands before calling
	build_polynomial_chrec.
	* tree-chrec.c (chrec_fold_poly_cst, chrec_fold_plus_poly_poly,
	chrec_fold_multiply_poly_poly, chrec_replace_initial_condition,
	reset_evolution_in_loop): Insert asserts to check the types of the
	operands.
	(chrec_type): Moved...
	(eq_evolutions_p): Use operand_equal_p.
	* tree-chrec.h (build_polynomial_chrec): Insert an assert to check
	the types of the operands.
	(chrec_type): ...here.
	* tree-data-ref.c (create_data_ref): Convert the operands before
	calling chrec_replace_initial_condition.
	(same_access_functions, analyze_subscript_affine_affine,
	analyze_miv_subscript, all_chrecs_equal_p): Use eq_evolutions_p.
	(compute_subscript_distance, analyze_ziv_subscript,
	analyze_siv_subscript_cst_affine, compute_overlap_steps_for_affine_1_2,
	analyze_miv_subscript): Convert the operands before calling
	chrec_fold_minus or chrec_fold_plus.

2006-04-02  Sebastian Pop  <pop@cri.ensmp.fr>

	* tree-data-ref.c (compute_all_dependences): Use a pointer to
	the dependence_relations vector.
	(compute_data_dependences_for_loop): Adjust call to
	compute_all_dependences.

2006-04-01  Roger Sayle  <roger@eyesopen.com>
	    Richard Henderson  <rth@redhat.com>

	* gimplify.c (gimplify_scan_omp_clauses) <OMP_CLAUSE_IF>: Call
	gimple_boolify on the condition before calling gimplify_expr.

2006-03-31  Bob Wilson  <bob.wilson@acm.org>

	* config/xtensa/lib1funcs.asm: Rename abi_entry/abi_return macros
	to leaf_entry/leaf_return.  Change leaf_entry to add 16 bytes to
	the frame size.  Update to use the new macros.
	* config/xtensa/ieee754-sf.S: Use new leaf_entry/leaf_return macros.
	* config/xtensa/ieee754-df.S: Likewise.

2006-03-31  Richard Henderson  <rth@redhat.com>

	* tree-cfg.c (make_ctrl_stmt_edges, make_exit_edges): Merge into...
	(make_edges): ... here.  Control fallthru creation with a local
	variable.  Do not play with fake edges.
	(make_omp_sections_edges): Don't set EDGE_ABNORMAL.
	(make_goto_expr_edges): Don't play with fake edges.  Make for_call
	a boolean.

2006-04-01  Joseph S. Myers  <joseph@codesourcery.com>

	* dwarf2.h (DW64_CIE_ID): Define.
	* dwarf2out.c (DWARF_CIE_ID): Define.
	(output_call_frame_info): Output 0xffffffff before standard 8-byte
	length header.  Use DWARF_CIE_ID.
	(value_format): Use DW_FORM_data4 or DW_FORM_data8 for
	dw_val_class_loc_list depending on DWARF_OFFSET_SIZE.

2006-03-31  Kaz Kojima  <kkojima@gcc.gnu.org>

	* config/sh/linux-atomic.asm: New file.
	* config/sh/t-linux (LIB2FUNCS_EXTRA): Add linux-atomic.asm.

2006-03-31  DJ Delorie  <dj@redhat.com>

	* config/m32c/cond.md: Set condition flags properly throughout.
	* config/m32c/minmax.md: Likewise.
	* config/m32c/prologue.md: Likewise.
	* config/m32c/bitops.md: Likewise.
	* config/m32c/muldiv.md: Likewise.
	* config/m32c/mov.md: Likewise.
	* config/m32c/addsub.md: Likewise.
	* config/m32c/m32c.md: Likewise.
	* config/m32c/jump.md: Likewise.
	* config/m32c/shift.md: Likewise.

	* config/m32c/cond.md (cmp<mode>): Call m32c_output_compare to
	conditionally output the pattern for this.
	* config/m32c/m32c.c (flags_needed_for_conditional): New.
	(m32c_compare_redundant): New.
	(m32c_output_compare): New.
	* config/m32c/m32c-protos.h (m32c_output_compare): New.

	* config/m32c/m32c.c (m32c_prepare_shift): Fix logic to clobber
	dest, not src.  Allow other 4-byte modes.

2006-03-30  Denis Chertykov  <denisc@overta.ru>

	* doc/md.texi: Refer to avr/constraints.md instead of
	avr/avr.h.

2006-03-30  Roger Sayle  <roger@eyesopen.com>

	* expr.c (emit_group_store): Make BYTEPOS a HOST_WIDE_INT to
	signed vs. unsigned comparison failures on some hosts.

2006-03-31  Alan Modra  <amodra@bigpond.net.au>

	PR target/26459
	* config/rs6000/rs6000.h (CANNOT_CHANGE_MODE_CLASS): Limit 2003-12-08
	change to FLOAT_REGS.

	* config/rs6000/rs6000.c (rs6000_explicit_options): Add ieee.
	(rs6000_override_options): Use it.
	(rs6000_handle_option): Set it.  Set rs6000_explicit_options.abi
	only for -mabi=spe/no-spe and -mabi=altivec.

2006-03-30  Geoffrey Keating  <geoffk@apple.com>

	* config/darwin.h (LINK_COMMAND_SPEC): Don't try to protect %S with
	!Zdynamiclib.

2006-03-30  Carlos O'Donell  <carlos@codesourcery.com>

	* Makefile.in: Rename docdir to gcc_docdir.

2006-03-30  Roger Sayle  <roger@eyesopen.com>

	PR target/17959
	* expr.c (emit_group_store): Optimize group stores into a pseudo
	register by using a paradoxical subreg to initialize the destination
	if the first or last member of the group specifies a "low part".

2006-03-30  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

	PR target/26734
	* rtl.def (DEPS_LIST): Change type of the second operand to 'int'.
	* target.h (struct gcc_target.speculate_insn): Change type of the
	second parameter to 'int'.
	* lists.c (alloc_DEPS_LIST): Change signature.  Update reference to
	the second operand of the DEPS_LIST.
	(copy_DEPS_LIST_list): Update reference	to the second operand of the
	DEPS_LIST.
	* rtl.h (alloc_DEPS_LIST): Update signature.
	* sched-int.h (ds_t): Change typedef to 'int'.
	(DEP_STATUS, BITS_PER_DEP_STATUS): Update.

2006-03-30  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

	* haifa-sched.c (try_ready): Change condition to restore
	non-speculative pattern	of the instruction.
	(process_insn_depend_be_in_spec): Code to keep probability of the
	speculative dependence non-decreasing.

2006-03-30  Jie Zhang  <jie.zhang@analog.com>

	* config/bfin/bfin.c (single_move_for_strmov): Renamed to...
	(single_move_for_movmem): ... this. Also change all uses.
	(bfin_expand_strmov): Renamed to...
	(bfin_expand_movmem): ... this. Also change all uses.
	* config/bfin/bfin.md (movstrsi): Renamed to...
	(movstrsi): ...this.

2006-03-30  Paolo Bonzini  <bonzini@gnu.org>

	PR tree-optimization/26830

	* tree-ssa-copy.c (copy_prop_visit_assignment): Do not check loop depth.
	(copy_prop_visit_stmt): Remove write-only variable ann.
	(init_copy_prop): Check variable loop depth here.  Do not simulate
	memory-tag and virtual operand PHIs except for store copy prop.

2006-03-30  Richard Guenther  <rguenther@suse.de>

	* config/i386/i386.c: Remove builtins for SSE2 ABI intrinsic
	variants with double arguments.

2006-03-29  David Edelsohn  <edelsohn@gnu.org>

	* genpreds.c (write_tm_constrs_h): Delete variable p.
	* genconditions.c (write_header): Add tm-constrs.h to included
	headers.
	* genpeep.c (main): Add toplev.h to included headers.
	* Makefile.in (build/gencondmd.o): Add tm-constrs.h dependency.
	(build/genpeep.o): Add toplev.h dependency.
	* config/rs6000/constraints.md: Add "W" constraint.

2006-03-29  Roger Sayle  <roger@eyesopen.com>

	* stor-layout.c (mode_for_size_tree): Remove restiction on type
	sizes by correctly testing whether the size fits a host integer.
	(initialize_sizetypes): Use set_min_and_max_values_for_integral_type
	to correctly set TYPE_MIN_VALUE and TYPE_MAX_VALUE to the full
	SImode range for the default sizetype and bitsizetype.

2006-03-29  Roger Sayle  <roger@eyesopen.com>

	* convert.c (convert_to_pointer): Preserve the TREE_OVERFLOW
	and TREE_CONSTANT_OVERFLOW bits of the argument.  Return
	quickly if the argument is already of the correct type.
	Call fold_build1 instead of build1.  Tidy up blank lines.

2006-03-29  David Edelsohn  <edelsohn@gnu.org>

	* genemit.c (main): Add tm-constrs.h to included headers.
	* genoutput.c (output_prologue): Add tm-constrs.h to included headers.
	* genpeep.c (main): Add tm-constrs.h to included headers.
	* genpreds.c (write_satisfies_constraint_fns): Rename to ...
	(write_tm_constrs_h): this and write complete file.
	(write_tm_preds_h): Do not emit satisfies_constraint fns.
	(write_insn_preds_c): Add tm-constrs.h to included headers.
	(gen_constrs): New variable.
	(parse_option): Parse "-c".
	(main): Invoke write_tm_constrs_h.
	* genrecog.c (write_header): Add tm-constrs.h to included headers.
	* Makefile.in (STAGECOPYSTUFF): Add tm-constrs.h.
	(object_out_file): Add tm-constrs.h dependency.
	(insn-emit.o): Same.
	(insn-output.o): Same.
	(insn-peep.o): Same.
	(insn-preds.o): Same.
	(insn-recog.o): Same.
	(tm-constsr.h): New target.
	(s-constrs-h): New target.

	* config/rs6000/constraints.md: New file.
	* config/rs6000/rs6000.c: Include tm-constrs.h.
	(num_insn_constant_wide): Convert to satisfies_constraint.
	(rs6000_rtx_costs): Convert to satisfies_constraint.
	* config/rs6000/rs6000.h (REG_CLASS_FROM_LETTER): Delete.
	(CONST_OK_FOR_LETTER_P): Delete.
	(CONST_DOUBLE_OK_FOR_LETTER_P): Delete.
	(EXTRA_CONSTRAINT): Delete.
	(EXTRA_MEMORY_CONSTRAINT): Delete.
	(EXTRA_ADDRESS_CONSTRAINT): Delete.
	* config/rs6000/predicates.md: Convert to satisfies_constraint.
	* config/rs6000/rs6000.md: Include constraints.md.  Convert to
	satisfies_constraint.

	* config/i386/i386.c: Include tm-constrs.h.

2006-03-29  Sebastian Pop  <pop@cri.ensmp.fr>

	* tree-loop-linear.c (compute_data_dependences_for_loop): Adjust calls.
	* tree-data-ref.c (find_data_references_in_loop,
	compute_data_dependences_for_loop): Use pointers to VEC.
	(analyze_all_data_dependences): Adjust calls.
	* tree-data-ref.h (find_data_references_in_loop,
	compute_data_dependences_for_loop): Adjust declarations.
	* tree-vect-analyze.c (vect_analyze_data_refs): Adjust call to
	compute_data_dependences_for_loop.

2006-03-29  Paul Brook  <paul@codesourcery.com>

	* config/arm/vfp.md (movsf_vfp): Disparage w<->r alternatives.
	(movdf_vfp): Ditto.

2006-03-29  Sebastian Pop  <pop@cri.ensmp.fr>

	PR tree-optimization/26859
	* tree-ssa-loop-niter.c (infer_loop_bounds_from_undefined): Avoid
	division by zero.
	(convert_step): Remove TREE_OVERFLOW and TREE_CONSTANT_OVERFLOW flags
	for the step after fold_convert.

2006-03-29  Paul Brook  <paul@codesourcery.com>

	* reload1.c (choose_reload_regs): Check for all RTX_AUTOINC operators.
	(inc_for_reload): Handle PRE_MODIFY and POST_MODIFY addresses.

2006-03-29  Paul Brook  <paul@codesourcery.com>

	PR middle-end/23623
	* targhooks.c (default_narrow_bitfield): New fuction.
	* targhooks.h (default_narrow_bitfield): add prototype.
	* target.h (gcc_target): Add narrow_volatile_bitfield.
	* target-def.h (TARGET_NARROW_VOLATILE_BITFIELD): Define.
	* stor-layout.c (get_best_mode): Use targetm.narrow_volatile_bitfield.
	* doc/tm.texi: Document TARGET_NARROW_VOLATILE_BITFIELDS.
	* config/arm/arm.c (TARGET_NARROW_VOLATILE_BITFIELD): Define.

2006-03-29  Andreas Krebbel  <krebbel1@de.ibm.com>

	* config.gcc (s390-*-linux-*, s390x-*-linux*): Add t-dfprules to
	tmake_file.
	* config/s390/s390.c (S390_scalar_mode_supported_p): New function.
	(NR_C_MODES): Add TDmode, DDmode and SDmode.
	(s390_output_pool_entry, ): Accept MODE_DECIMAL_FLOAT.
	(s390_hard_regno_mode_ok): Disallow TDmode in integer regs.
	(s390_function_arg_float): Allow SDmode and DDmode values to be
	passed in floating point registers.
	(s390_function_arg_integer, s390_function_value): Replace MODE_FLOAT
	check with SCALAR_FLOAT_MODE_P.
	(TARGET_SCALAR_MODE_SUPPORTED_P): Define target macro.

2006-03-28  Zdenek Dvorak <dvorakz@suse.cz>

	PR tree-optimization/25985
	* tree-ssa-loop-niter.c (number_of_iterations_le,
	number_of_iterations_ne): Make comments more precise.
	(number_of_iterations_cond): Add only_exit argument.  Use the
	fact that signed variables do not overflow only when only_exit
	is true.
	(loop_only_exit_p): New.
	(number_of_iterations_exit): Pass result of loop_only_exit_p to
	number_of_iterations_cond.

2006-03-28  Zdenek Dvorak <dvorakz@suse.cz>

	PR tree-optimization/26643
	* tree-ssa-loop-ivopts.c (find_interesting_uses_address): Do not handle
	bit_field_refs.

2006-03-28  Kaz Kojima  <kkojima@gcc.gnu.org>

	* config/sh/sh.md (udivsi3_i4_int): Clobber MACH_REG and MACL_REG.
	(divsi3_i4_int): Likewise.

2006-03-28  Roger Sayle  <roger@eyesopen.com>

	* expr.c (emit_group_store): Only create a new pseudo reg if the
	quantity it needs to hold isn't already a suitable pseudo.

2006-03-28  Jeff Law  <law@redhat.com>

	* timevar.def (TV_TREE_PHI_CPROP): New timevar.
	* tree-ssa-dom.c (pass_phi_only_cprop): Use it.

2006-03-28  Roger Sayle  <roger@eyesopen.com>

	* fold-const.c (fold_binary) <BIT_XOR_EXPR>: Fold (X & Y) ^ Y as
	the equivalent ~X & Y, and the symmetry related transformations.
	(fold_binary) <BIT_AND_EXPR>: Similarly, fold (X ^ Y) & Y as
	~X & Y, and symmetry related transforms.

2006-03-28  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

	Revert my 2006-03-27 patches.

2006-03-28  Roger Sayle  <roger@eyesopen.com>

	* fold-const.c (fold_unary) <NOP_EXPR>: Fold (T1)(~(T2)X) as
	~(T1)X, when T1 and T2 are integer types of the same precision
	and (T2)X isn't an extension.

2006-03-28  Jeff Law  <law@redhat.com>

	PR tree-optimization/26796
	* tree-ssa-dom.c (propagate_rhs_into_lhs): Queue blocks which
	need EH edge cleanups rather than purging them immediately.
	(eliminate_degenerate_phis): Handle queued EH cleanups.

2006-03-28  Daniel Berlin  <dberlin@dberlin.org>

	* tree-ssa-alias.c (create_sft): Initially inherit TREE_ADDRESSABLE
	from parent_var.

2006-03-27  Roger Sayle  <roger@eyesopen.com>

	PR middle-end/22524
	* fold-const.c (fold_binary) <MINUS_EXPR>: Call fold_convert to
	cast BIT_NOT_EXPR operand to the correct type.

2006-03-27  Sebastian Pop  <pop@cri.ensmp.fr>

	* tree-loop-linear.c: Don't include varray.h.
	(gather_interchange_stats, try_interchange_loops,
	linear_transform_loops): Use VEC instead of VARRAY.
	* lambda-mat.c: Don't include varray.h.
	* tree-chrec.c: Same.
	* lambda-trans.c: Same.
	* tree-vectorizer.c (new_loop_vec_info, destroy_loop_vec_info): Use
	VEC instead of VARRAY.
	* tree-vectorizer.h: Idem.
	* tree-data-ref.c (dump_data_references,
	dump_data_dependence_relations, dump_dist_dir_vectors, dump_ddrs,
	initialize_data_dependence_relation, finalize_ddr_dependent,
	compute_all_dependences, find_data_references_in_loop,
	compute_data_dependences_for_loop, analyze_all_data_dependences,
	free_dependence_relation, free_dependence_relations,
	free_data_refs): Idem.
	* tree-data-ref.h (data_reference_p, subscript_p): New.
	(data_dependence_relation, DDR_SUBSCRIPT, DDR_NUM_SUBSCRIPTS): Use
	VEC instead of VARRAY.
	(DDR_SUBSCRIPTS_VECTOR_INIT): Removed.
	(find_data_references_in_loop, compute_data_dependences_for_loop,
	dump_ddrs, dump_dist_dir_vectors, dump_data_references,
	dump_data_dependence_relations, free_dependence_relations,
	free_data_refs): Adjust declaration.
	(lambda_transform_legal_p): Move declaration here...
	* tree-vect-analyze.c (vect_analyze_data_ref_dependences,
	vect_compute_data_refs_alignment, vect_verify_datarefs_alignment,
	vect_enhance_data_refs_alignment, vect_analyze_data_ref_accesses,
	vect_analyze_data_refs): Use VEC instead of VARRAY.
	* lambda.h (lambda_transform_legal_p): ...from here.
	* lambda-code.c (lambda_transform_legal_p): Use VEC instead of VARRAY.
	* tree-vect-transform.c (vect_update_inits_of_drs): Idem.
	* Makefile.in (tree-loop-linear.o, lambda-mat.o, lambda-trans.o,
	tree-chrec.o): Don't depend on VARRAY_H.

2006-03-27  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

	* rtl.def (Copyright): Update date.
	(DEPS_LIST): Change type of the second operand to 'int'.
	* target.h (Copyright): Update date.
	(struct gcc_target.speculate_insn): Change type of the second parameter
	to 'int'.
	* lists.c (Copyright): Update date.
	(alloc_DEPS_LIST): Change signature.  Update reference to the second
	operand of the DEPS_LIST.
	(copy_DEPS_LIST_list): Update reference	to the second operand of the
	DEPS_LIST.
	* rtl.h (Copyright): Update date.
	(alloc_DEPS_LIST): Update signature.
	* sched-int.h (Copyright): Update date.
	(ds_t): Change typedef to 'int'.
	(DEP_STATUS, BITS_PER_DEP_STATUS): Update.

2006-03-27  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

	* haifa-sched.c (Copyright): Update date.
	(try_ready): Change condition to restore non-speculative pattern
	of the instruction.
	(process_insn_depend_be_in_spec): Code to keep probability of the
	speculative dependence non-decreasing.

2006-03-27  Bernd Schmidt  <bernd.schmidt@analog.com>

	* regrename.c (replace_oldest_value_addr): Initialize a variable to
	shut up the compiler.

2006-03-27  J"orn Rennecke <joern.rennecke@st.com>

	* config/sh/t-sh ($(T)libic_invalidate_array_4-100.a): Fix rule
	to use lib prefix for target.
	($(T)libic_invalidate_array_4-200.a): Likewise.
	($(T)libic_invalidate_array_4a.a): Likewise.

2006-03-27  Andrew Stubbs <andrew.stubbs@st.com>
	    J"orn Rennecke <joern.rennecke@st.com>

	* superh.opt: New file.
	* sh.c (boardtype, osruntime): Remove.
	* superh.h (SUBTARGET_OPTIONS): Remove.
	* config.gcc (sh*-superh-elf): Add sh/superh.opt to extra_options.

	* config.gcc (sh*-*-*): Don't use c-c ranges for tr.  Quote sed
	arguments with ^ and/or [].

	* config.gcc (sh-*-*): Add quoting to account for quirk of
	Solaris /bin/sh.
	Replace == with = in enable_incomplete_targets test.

	* config/sh/superh.h (SUBTARGET_LINK_SPEC): Replace LITTLE_ENDIAN_BIT
	with MASK_LITTLE_ENDIAN.

	* config.gcc (sh*-superh-elf): Add sh/superh.h to tm_file.
	* config/sh/sh.opt: Added to some comments.
	* config/sh/superh.h: Removed some chaff.

	* config/sh/sh.opt: Add m4-[1234]00* options.
	* config/sh/sh.c (sh_handle_option): Likewise.
	* config/sh/t-sh (IC_EXTRA_PARTS, EXTRA_MULTILIB_PARTS): Define.
	(ic_invalidate_array_4-100.o): New rule.
	($(T)libic_invalidate_array_4-100.a): Likewise.
	(ic_invalidate_array_4-200.o): Likewise.
	($(T)libic_invalidate_array_4-200.a): Likewise.
	(ic_invalidate_array_4a.o): Likewise.
	($(T)libic_invalidate_array_4a.a): Likewise.
	* config/sh/t-elf (EXTRA_MULTILIB_PARTS): Add IC_EXTRA_PARTS.
	* config/sh/embed-elf.h (LIBGCC_SPEC): Add clauses for m4-100*,
	m4-200*, and m4a*.
	* config/sh/crt1.asm: Merged in profiling code.
	* config/sh/superh.h (STARTFILE_SPEC): Override.
	* config/sh/t-superh: Override EXTRA_MULTILIB_PARTS.
	Add rules for $(T)crt1-mmu.o, $(T)gcrt1-mmu.o and $(T)gcrt1.o.
	* config.gcc (sh*-superh-elf): Add t-superh to tmake_file.

	* t-sh (MULTILIB_MATCHES): Add sh4-[1245]00* variants.
	* config/sh/t-superh: Removed now-redundant MULTILIB_OPTIONS /
	MULTILIB_DIRNAMES / MULTILIB_MATCHES settings.

	* sh.opt (mpretend-cmove): New option.
	* sh.h (OPERRIDE_OPTIONS): Switch it off if not TARGET_SH1.
	* sh.md (movsicc_t_false, movsicc_t_tru): New patterns.
	(movsicc): Add TARGET_PRETEND_CMOVE code.

2006-03-27  Andreas Krebbel  <krebbel1@de.ibm.com>

	* config/s390/s390-protos.h (s390_hard_regno_mode_ok,
	s390_class_max_nregs): New function prototypes.
	* config/s390/s390.c (REGNO_PAIR_OK): New macro.
	(s390_hard_regno_mode_ok, s390_class_max_nregs): New functions.
	* config/s390/s390.h (HARD_REGNO_NREGS, HARD_REGNO_MODE_OK,
	CLASS_MAX_NREGS): Macro bodies replaced by function calls.

2006-03-26  Geoffrey Keating  <geoffk@apple.com>

	* dwarf2out.c (add_location_or_const_value_attribute): Call
	tree_add_const_value_attribute if nothing else works.
	(reference_to_unused): New.
	(rtl_for_decl_init): Use reference_to_unused to decide whether
	to output an initializer.

2006-03-27  Alan Modra  <amodra@bigpond.net.au>

	PR target/26459
	* config/rs6000/rs6000.md (DF reg move peephole): Prevent
	peephole removing spe frob_di_df_2.

2006-03-26  Sebastian Pop  <pop@cri.ensmp.fr>

	* tree-data-ref.c: Rename DDR_SIZE_VECT to DDR_NB_LOOPS.
	(subscript_dependence_tester_1): Declared.
	(print_dir_vectors, print_dist_vectors): New.
	(debug_data_dependence_relation): New.
	(dump_data_dependence_relation): Print more details.
	(initialize_data_dependence_relation): Initialize DDR_LOOP_NEST.
	(analyze_subscript_affine_affine): Don't ICE when gcd_alpha_beta is 0.
	(save_dist_v, save_dir_v, add_outer_distances,
	build_classic_dist_vector_1): New.
	(build_classic_dist_vector): Rewrite to work on DDR_LOOP_NEST.
	Don't test for lambda_vector_lexico_pos.
	(same_access_functions, add_multivariate_self_dist,
	add_other_self_distances, dir_from_dist): New.
	(build_classic_dir_vector): Replace implementation almost identical to
	build_classic_dist_vector with a walk of DDR_DIST_VECTS with a call to
	dir_from_dist.
	(subscript_dependence_tester_1): New.
	(subscript_dependence_tester): Handle the lexicographically negative
	distance vectors by recomputing the dependence relation.
	(compute_affine_dependence): Remove parameter loop_nest_depth.
	(compute_self_dependence): Don't call compute_subscript_distance.
	(compute_all_dependences): Remove parameters nb_loops, loop_nest_depth.
	Add a parameter for the loop_nest.
	(find_loop_nest_1, find_loop_nest): New.
	(compute_data_dependences_for_loop): Compute the loop nest, and give
	up if the nest is not well formed.
	* tree-data-ref.h (loop_p): New.
	(struct data_dependence_relation): Replace size_vect field with
	loop_nest, a vec of loops.
	(DDR_SIZE_VECT): Renamed DDR_NB_LOOPS.
	(DDR_LOOP_NEST): New.
	(print_dir_vectors, print_dist_vectors,
	debug_data_dependence_relation): Declared.
	(index_in_loop_nest): New.
	* tree-vect-analyze.c (vect_analyze_data_ref_dependence): Use
	DDR_LOOP_NEST and index_in_loop_nest to determine the dependence
	distance.

2006-03-25  Adam Nemet  <anemet@caviumnetworks.com>

	* simplify-rtx.c (simplify_relational_operation): Call
	simplify_relational_operation_1 even if mode is VOIDmode.

2006-03-25  Daniel Berlin  <dberlin@dberlin.org>

	PR tree-optimization/26804
	* tree.h (DECL_CALL_CLOBBERED): New macro.
	(tree_decl_common): Add call_clobbered_flag.
	* tree-flow-inline.h (is_call_clobbered): Use DECL_CALL_CLOBBERED.
	(mark_call_clobbered): Set DECL_CALL_CLOBBERED.
	(clear_call_clobbered): Clear DECL_CALL_CLOBBERED.
	(mark_non_addressable): Ditto.
	* tree-ssa.c (verify_call_clobbered): New function.
	(verify_alias_info): Use it.
	* tree-pass.h (pass_reset_cc_flags): New prototype.
	* tree-ssa-alias.c (pass_reset_cc_flags): New structure.
	(reset_cc_flags): New function.
	* passes.c (init_optimization_passes): Call reset_cc_flags after
	initializing referenced_vars.

2006-03-25  Uros Bizjak  <uros@kss-loka.si>
	    Roger Sayle  <roger@eyesopen.com>

	PR middle-end/26717
	* fold-const.c (fold_binary) [RDIV_EXPR]: Do not optimize A / A
	to 1.0 for non-real operands. Implement A / A optimization for
	complex operands.

2006-03-25  H.J. Lu  <hongjiu.lu@intel.com>

	* config/i386/i386.c (size_cost): Correct the comment for
	cost of storing fp registers.
	(i386_cost): Likewise.
	(i486_cost): Likewise.
	(pentium_cost): Likewise.
	(pentiumpro_cost): Likewise.
	(k6_cost): Likewise.
	(athlon_cost): Likewise.
	(k8_cost): Likewise.
	(pentium4_cost): Likewise.
	(nocona_cost): Likewise.
	(generic64_cost): Likewise.
	(generic32_cost): Likewise.

2006-03-24  Denis Chertykov  <denisc@overta.ru>

	* config/avr/avr-protos.h (extra_constraint): Delete.
	(extra_constraint_Q): New declaration.
	* config/avr/constraints.md: New file.
	* config/avr/avr.md: Include it.
	(REG_X, REG_Y, REG_Z, REG_W): New constants.
	(TMP_REGNO, ZERO_REGNO): Likewise.
	(UNSPEC_STRLEN, UNSPEC_INDEX_JMP): Likewise.
	* config/avr/avr.c (avr_reg_class_from_letter): Delete.
	(extra_constraint): Delete.
	(extra_constraint_Q): Test for memory constraint 'Q'.
	* config/avr/avr.h (REG_X,REG_Y,REG_Z,REG_W): Delete.
	(REG_CLASS_FROM_LETTER): Delete.
	(CONST_OK_FOR_LETTER_P): Delete.
	(CONST_DOUBLE_OK_FOR_LETTER_P): Delete.
	(EXTRA_CONSTRAINT): Delete.
	(TMP_REGNO): Delete.
	(ZERO_REGNO): Delete.

2006-03-24  Jeff Law  <law@redhat.com>

	* tree-ssa-dom.c (propagate_rhs_into_lhs): Don't call update_stmt
	directly.  Call mark_new_vars_to_rename slightly earlier.

2006-03-24  Geoffrey Keating  <geoffk@apple.com>

	* dwarf2out.c (is_c_family): Understand new DWARF3 language types.
	(is_cxx): Likewise.
	(gen_compile_unit_die): Use new language types for Objective-C and
	Objective-C++.
	(dwarf2out_decl): Use is_cxx rather than testing explicitly against
	DW_LANG_C_plus_plus.

	PR 26793
	* config/t-darwin (crt3.o): Work around bug 26840.
	* config/darwin-crt3.c: Rewrite.
	* config/darwin.h (STARTFILE_SPEC): Don't use -l for crt3.o.

2006-03-24  Carlos O'Donell  <carlos@codesourcery.com>

	* doc/invoke.texi: Document -femit-class-debug-always
	* common.opt: Add -femit-class-debug-always.

2006-03-24  Andreas Krebbel  <krebbel1@de.ibm.com>

	* config/s390/s390.c (s390_decompose_address): Allow SImode for
	index and base register.
	(s390_expand_plug_operand, legitimate_address_p, preferred_la_operand_p,
	print_operand_address, print_operand): Replaced REG_OK_FOR_BASE_STRICT_P
	with REGNO_OK_FOR_BASE_P and REG_OK_FOR_INDEX_STRICT_P with
	REGNO_OK_FOR_INDEX_P.
	* config/s390/s390.h (REGNO_OK_FOR_INDEX_P): Replaced check with
	ADDR_REGNO_P.
	(REG_OK_FOR_INDEX_NONSTRICT_P, REG_OK_FOR_BASE_NONSTRICT_P,
	REG_OK_FOR_INDEX_STRICT_P, REG_OK_FOR_BASE_STRICT_P, REG_OK_FOR_INDEX_P,
	REG_OK_FOR_BASE_P): Definitions removed.

2006-03-24  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/26611
	* gimplify.c (gimplify_bind_expr): Only call omp_add_variable on
	non-global variables that don't have DECL_SEEN_IN_BIND_EXPR_P bit
	set yet or weren't marked as local yet.

2006-03-24  Bernd Schmidt  <bernd.schmidt@analog.com>

	* regrename.c (scan_rtx_address): Initialize a variable to shut up
	the compiler.

2006-03-24  Eric Botcazou  <ebotcazou@adacore.com>

	* config/rs6000/rs6000-protos.h (rs6000_offsettable_memref_p): Declare.
	(rs6000_legitimate_small_data_p): Delete.
	* config/rs6000/rs6000.c (rs6000_offsettable_memref_p): New predicate.
	(rs6000_legitimate_small_data_p): Rename to legitimate_small_data_p
	and make static.  Add forward declaration.  Update uses.
	(rs6000_split_multireg_move): Use rs6000_offsettable_memref_p instead
	of offsettable_memref_p.
	* config/rs6000/rs6000.md (movdf_hardfloat32): Revert 2005-08-23 fix.
	Use rs6000_offsettable_memref_p instead of a less accurate predicate.

2006-03-24  Jeff Law  <law@redhat.com>

	* tree-ssa-dom.c (propagate_rhs_into_lhs): Temporarily work
	around bug in immediate-use iterator.

2006-03-24  Alan Modra  <amodra@bigpond.net.au>

	PR target/26607
	* config/rs6000/darwin-ldouble.c: Don't compile when __NO_FPRS__
	or __LITTLE_ENDIAN__.

2006-03-23  J"orn Rennecke <joern.rennecke@st.com>

	* config/sh/divtab-sh4.c, config/sh/divcost-analysis: New files.
	* config/sh/lib1funcs.asm (div_table): Add !__SH5__ variant.
	* config/sh/t-sh (LIB1ASMFUNCS): Add _div_table.
	* config/sh/sh.opt (mdiv=): Amend description.
	* config/sh/sh.h (TARGET_DIVIDE_CALL_DIV1): New macro.
	(TARGET_DIVIDE_CALL_FP, TARGET_DIVIDE_CALL_TABLE): Likewise.
	(sh_divide_strategy_e): Add new members SH_DIV_CALL_DIV1,
	SH_DIV_CALL_FP, SH_DIV_CALL_TABLE and SH_DIV_INTRINSIC.
	(OVERRIDE_OPTIONS): Also process sh_div_str for TARGET_SH1.
	Calculate sh_divsi3_libfunc using TARGET_DIVIDE_* macros.
	* config/sh/sh.md (udivsi3_i4_int, divsi3_i4_int): New patterns.
	(udivsi3, divsi3): Use them.  Check TARGET_DIVIDE_CALL_TABLE /
	TARGET_DIVIDE_CALL_FP.

2006-03-23  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

	* haifa-sched.c (choose_ready): Fix type of the local variable.
	Move local variables.  Add comment.
	(check_reg_live): Change signature.  Make callable from debugger.
	* sched-int.h (check_reg_live): Update signature.
	* sched-ebb.c (check_reg_live): Update parameters.
	* sched-rgn.c (check_reg_live): Ditto.
	(region_head_or_leaf_p): Check pointer before dereferencing.
	* config/ia64/ia64.c (ia64_set_sched_flags): Disable data speculation
	before reload on optimization levels below 1.

2006-03-23  Richard Henderson  <rth@redhat.com>

	* config/alpha/alpha.c (alpha_legitimate_constant_p): Reject
	tls symbols.

	PR target/26347
	* config/alpha/predicates.md (local_symbolic_operand): Reject
	weak symbols.

2006-03-23  Andrew Pinski  <pinskia@physics.uc.edu>

	PR tree-opt/26795
	* tree-ssa-pre.c (create_value_expr_from): Don't reject
	expressions which have overflowed constants.

2006-03-23  Zdenek Dvorak <dvorakz@suse.cz>

	* cse.c (cse_end_of_basic_block): Do not check for LOOP_END note.

2006-03-23  Zdenek Dvorak <dvorakz@suse.cz>

	* cfgloopmanip.c (create_loop_notes): Removed.
	* final.c (final_scan_insn): Do not handle loop notes.
	* jump.c (squeeze_notes): Ditto.
	* cfglayout.c (skip_insns_after_block,
	duplicate_insn_chain): Ditto.
	* cfgcleanup.c (rest_of_handle_jump2): Do not call
	create_loop_notes.
	* cfgloop.h (create_loop_notes): Declaration removed.

2006-03-23  Richard Sandiford  <richard@codesourcery.com>

	* varasm.c (output_constant_pool): Restore fnname and fndecl
	arguments.
	(assemble_start_function): Adjust call accordingly.
	(assemble_end_function): Likewise.

2006-03-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

	PR mudflap/26789
	* tree-mudflap.c (mudflap_finish_file): Skip erroneous objects.

	PR mudflap/26790
	* tree-mudflap.c (mf_xform_derefs_1): Return early on error_mark_node.

2006-03-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

	PR driver/22600
	* system.h (ICE_EXIT_CODE): New macro.
	* diagnostic.c (diagnostic_count_diagnostic): Exit with ICE_EXIT_CODE.
	(diagnostic_action_after_output): Likewise.
	* gcc.c (fatal_ice): New function.
	(execute): Use it instead of fatal.
	(fancy_abort): Likewise.
	* doc/invoke.texi (-pass-exit-codes): Document return code for ICEs.

2006-03-22  Jeff Law  <law@redhat.com>

	* loop-unroll.c (analyze_iv_to_split_insn): Handle
	iv_analyze_result returning false.

2006-03-22  Jie Zhang  <jie.zhang@analog.com>

	* config/bfin/bfin.h (ASM_FORMAT_PRIVATE_NAME): Remove.

2006-03-22  Richard Henderson  <rth@redhat.com>

	PR middle-end/26084
	* except.c (duplicate_eh_regions_0): New.
	(duplicate_eh_region_1): Duplicate the children of the node as
	well as the node itself.  Link them up properly.
	(duplicate_eh_region_2): Merge into ...
	(duplicate_eh_regions): ... here.  Take copy_region argument, and
	copy only a sub-tree if asked.  Simplify copying and fixup.
	(eh_region_outer_p): New.
	* except.h (duplicate_eh_regions): Update decl.
	(eh_region_outer_p): Declare.
	* omp-low.c (lower_omp_single): Fix eh region placement wrt OMP_RETURN.
	(lower_omp_master): Likewise.
	(lower_omp_ordered): Likewise.
	* tree-cfg.c (struct move_stmt_d): Add new_label_map.
	(move_stmt_r): Use it to remap labels.  Handle recursion vs
	remap_decls_p properly.
	(move_block_to_fn): Pass in new_label_map.  Remap RESX_EXPR.
	(find_outermost_region_in_block): New.
	(new_label_mapper): New.
	(move_sese_region_to_fn): Copy eh information to the new function
	properly.
	* tree-inline.c (copy_cfg_body): Update for new duplicate_eh_regions
	argument.
	* tree-pretty-print.c (dump_generic_node): Dump RESX_EXPR region
	number.

2006-03-22  Richard Sandiford  <richard@codesourcery.com>

	* doc/md.texi (-mshared): Mention that -mshared code can be linked
	into shared libraries.

2006-03-22  Richard Sandiford  <richard@codesourcery.com>

	* doc/md.texi: Refer to i386/constraints.md instead of
	i386/predicates.md.
	* config/i386/constraints.md: New file, extracted from...
	* config/i386/predicates.md: ...here.
	* config/i386/i386.md: Include constraints.md.

2006-03-21  Jason Merrill  <jason@redhat.com>

	* builtins.c (expand_builtin_fork_or_exec): Fix pasto.

	PR middle-end/20297
	* expr.c (init_block_move_fn): Force default visibility.
	(init_block_clear_fn): Likewise.
	* builtins.c (expand_builtin_fork_or_exec): Likewise.
	* targhooks.c (default_external_stack_protect_fail): Likewise.

2006-03-21  Richard Sandiford  <richard@codesourcery.com>

	* config/mips/predicates.md (const_call_insn_operand): Allow direct
	calls to locally-defined functions if TARGET_ABSOLUTE_ABICALLS.
	* config/mips/mips.md (jal_macro): Test TARGET_ABSOLUTE_ABICALLS.
	Use TARGET_OLDABI instead of !TARGET_NEWABI.
	(loadgp): Use mips_current_loadgp_style.
	(loadgp_noshared): New pattern.
	(sibcall_internal): Use MIPS_CALL.
	(sibcall_value_internal): Likewise.
	(sibcall_value_multiple_internal): Likewise.
	(call_internal): Likewise.
	(call_value_internal): Likewise.
	(call_value_multiple_internal): Likewise.
	(call_split): Use MIPS_CALL and add an 'S' constraint.
	(call_value_split): Likewise.
	(call_value_multiple_split): Likewise.
	* config/mips/mips.opt (-mabicalls): Tweak docstring.
	(-mshared): New option.
	* config/mips/mips-protos.h (mips_loadgp_style): New enum.
	(mips_current_loadgp_style): Declare.
	* config/mips/mips.c (mips_classify_symbol): Avoid using
	SYMBOL_GOT_LOCAL if TARGET_ABSOLUTE_ABICALLS.  Use SYMBOL_GENERAL
	rather than SYMBOL_GOT_GLOBAL for locally-binding symbols if
	TARGET_ABSOLUTE_ABICALLS.
	(override_options): Adjust comments.  Improve the warning that is
	issued when -mabicalls and -G are used together.
	(mips_file_start): Remove comment.
	(mips_current_loadgp_style): New function.
	(mips_gnu_local_gp): New variable.
	(mips_emit_loadgp): Use mips_current_loadgp_style.  Handle
	LOADGP_ABSOLUTE.
	(mips_output_function_prologue): Use mips_current_laodgp_style.
	(mips_expand_prologue): Call mips_emit_loadgp before emitting
	the cprestore instruction.
	(mips_extra_live_on_entry): Fix reversed test.  Don't make $25
	live for TARGET_ABSOLUTE_ABICALLS.
	* config/mips/mips.h (TARGET_ABSOLUTE_ABICALLS): New macro.
	(ASM_SPEC): Pass down -mshared and -mno-shared.
	(MIPS_CALL): New macro.
	* config/mips/netbsd.h (TARGET_OS_CPP_BUILTINS): Remove __ABICALLS__
	definition.
	* doc/invoke.texi (-mabicalls): Update documentation.
	(-mshared): Document.

2006-03-21  Steve Ellcey  <sje@cup.hp.com>

	* config/ia64/unwind-hpux.c: New file.
	* config/ia64/t-hpux: Add unwind-hpux.c to libgcc.

2006-03-21  Steve Ellcey  <sje@cup.hp.com>

	PR libgomp/26384
	* config/pa/pa64-hpux.h (LIB_SPEC): Fix for -mt and -pthread options.

2006-03-21  Jeff Law  <law@redhat.com>

	* tree-vrp.c (extract_range_from_unary_expr): Derive ranges for
	type conversions of a VR_VARYING source to a wider type.

2006-03-21  Eric Botcazou  <ebotcazou@libertysurf.fr>

	* config.gcc (i[34567]86-*-solaris2*): Add config/sol2-10.h to
	tm_file on Solaris 10 and later.
	(sparc64-*-solaris2*): Likewise.
	(sparc-*-solaris2*): Likewise.
	* config/sol26.h: Rename to config/sol2-6.h.
	* config/sol2-10.h: New file.

2006-03-21  Andrew Pinski  <pinskia@physics.uc.edu>

	PR tree-opt/26781
	* tree-ssa-pre.c (create_component_ref_by_pieces):
	Handle STRING_CST.

2006-03-21  Jakub Jelinek  <jakub@redhat.com>

	PR c++/26690
	* tree.c (get_callee_fndecl): If CALL is error_mark_node,
	return it immediately.

2006-03-21  Michael Matz  <matz@suse.de>

	* genautomata.c (<struct state>, num_out_arcs, presence_signature):
	New members.
	(remove_arc, add_arc): Update num_out_arcs member.
	(set_out_arc_insns_equiv_num): Returns nothing instead of number
	of out arcs.
	(cache_presence): New function.
	(compare_states_for_equiv): New function.
	(state_is_differed): Don't take number of outargs, adjust callers.
	Use new invariant for speeding up.
	(init_equiv_class): Create initial classes based on sorted
	input.
	(partition_equiv_class): Don't track out_arcs_num.
	(evaluate_equiv_classes): Call cache_presence on all states and
	sort them.

2006-03-21  Bernd Schmidt  <bernd.schmidt@analog.com>

	* config/bfin/bfin-protos.h (bfin_dsp_memref_p): Declare.
	* config/bfin/bfin.c (bfin_dsp_memref_p): New function.
	(bfin_valid_reg_p): Test for pseudos explicitly and use only
	REGNO_MODE_CODE_OK_FOR_BASE_P.  New args MODE and OUTER_CODE; all
	callers changed.
	* config/bfin/bfin.h (PREG_P): Use P_REGNO_P.
	(IREG_P, P_REGNO_P, I_REGNO_P): New macros.
	(enum reg_class, REG_CLASS_CONTENTS): Add IPREGS.
	(BASE_REG_CLASS, REG_OK_FOR_BASE_P, REG_OK_FOR_INDEX_P,
	REGNO_OK_FOR_BASE_STRICT_P, REGNO_OK_FOR_BASE_NONSTRICT_P): Delete
	macros.
	(IREG_POSSIBLE_P, MODE_CODE_BASE_REG_CLASS,
	REGNO_MODE_CODE_OK_FOR_BASE_P): New macros.
	(REGNO_REG_CLASS): ARGP is in PREGS.
	* config/bfin/bfin.md (movhi_insn): Allow for addresses containing
	IREGS.
	(zero_extendhisi2, extendhisi2): Likewise; changed to define_and_split
	to deal with those addresses.
	* addresses.h: New file.
	* caller-save.c: Include "addresses.h".
	(init_caller_save): Use new base_reg_class function.
	* rtl-factoring.c: Include "addresses.h".
	(recompute_gain_for_pattern_seq): Use new function ok_for_base_p_1.
	* recog.c: Include "addresses.h".
	(preprocess_constraints): Use new base_reg_class function.
	* regrename.c: Include "addresses.h".
	(scan_rtx_address): Use new regno_ok_for_base_p and base_reg_class
	functions.  Keep track of a new var INDEX_CODE to compute valid
	classes.
	(replace_oldest_value_addr): Likewise.
	(replace_oldest_value_mem): Use base_reg_class.
	* reload.c: Include "addresses.h".
	(REGNO_MODE_OK_FOR_BASE_P, REG_MODE_OK_FOR_BASE_P): Delete macros.
	(find_reloads): Use new base_reg_class function.
	(find_reloads_address): Likewise; also use regno_ok_for_base_p.
	(find_reloads_address_1): Likewise. New args OUTER_CODE and INDEX_CODE;
	all callers and prototype changed.
	* reload1.c: Include "addresses.h".
	(maybe_fix_stack_asms): Use base_reg_class.
	* regclass.c: Include "addresses.h".
	(ok_for_index_p_nonstrict, ok_for_base_p_nonstrict): New functions.
	(init_reg_autoinc): Use new base_reg_class function.
	(record_reg_classes): Likewise.
	(record_address_regs): Delete arg CLASS; add args CONTEXT, MODE,
	OUTER_CODE and INDEX_CODE.  All callers and prototype changed.
	Use new args to compute necessary class.

	* Makefile.in (regclass.o, reload.o, reload1.o, caller-save.o, recog.o,
	regrename.o, rtl-factoring.o): Update dependencies.
	* doc/tm.texi (MODE_CODE_BASE_REG_CLASS): Document.
	(REGNO_MODE_CODE_OK_FOR_BASE_P): Likewise.
	(REG_OK_FOR_BASE_P, REG_MODE_OK_FOR_BASE_P, REG_MODE_OK_FOR_REG_BASE_P,
	REG_OK_FOR_INDEX_P): Delete documentation.

2006-03-21  Alexey Starovoytov  <alexey.starovoytov@sun.com>

	* config.gcc (sparc-*-solaris2*): Change the default CPU setting
	from V7 to V9 for Solaris 7 and above.

2006-03-21  Toon Moene  <toon@moene.indiv.nluug.nl>

	* doc/invoke.texi: Document new flag -fargument-noalias-anything.
	* tree-ssa-alias.c (may_alias_p): If flag_argument_noalias > 2,
	argument pointers may not alias any other storage.
	* common.opt: Define option -fargument-noalias-anything.
	* tree-ssa-structalias.c (intra_create_variable_infos): Fortran
	alias semantics is specified by flag_argument_noalias > 2.

2006-03-20  Jeff Law  <law@redhat.com>

	* tree-pass.h (pass_phi_only_copy_prop): Delete.
	(pass_phi_only_cprop): Declare.
	* passes.c (init_optimization_passes): Replace pass_phi_only_copy_prop
	with phi_only_cprop
	* tree-ssa-dom.c (degenerate_phi_result): New function.
	(remove_stmt_or_phi, get_lhs_or_phi_result): Likewise.
	(get_rhs_or_phi_arg, propagate_rhs_into_lhs): Likewise.
	(eliminate_const_or_copy, eliminate_degenerate_phis_1): Likewise.
	(eliminate_degenerate_phis): Likewise.
	(pass_phi_only_cprop): New pass descriptor.
	* tree-ssa-copy.c (init_copy_prop): Lose PHIS_ONLY argument and
	support code.  Callers updated.
	(execute_copy_prop, do_copy_prop): Likewise and corresponding changes.
	(store_copy_prop): Likewise.
	(do_phi_only_copy_prop, pass_phi_only_copy_prop): Remove.

2006-03-20  Jason Merrill  <jason@redhat.com>

	PR c++/21764
	* c-pragma.c (visstack): Move out of handle_pragma_visibility.
	(push_visibility, pop_visibility): Likewise.
	* c-pragma.h: Declare them.

2006-03-20  Kaz Kojima  <kkojima@gcc.gnu.org>

	* config/sh/sh.c (untangle_mova): Initialize n_addr and n_target.

	* config/sh/sh.c (find_regmode_weight): Change the type of the first
	parameter and use get_ebb_head_tail.
	(sh_md_init_global): Adjust uses of find_regmode_weight.

2006-03-20  Steven Bosscher  <stevenb.gcc@gmail.com>

	* function.h (struct function) <x_tail_recursion_reentry>:
	Rename to x_stack_check_probe_note.
	(tail_recursion_reentry): Rename to stack_check_probe_note.
	* function.c: Replace tail_recursion_reentry with
	stack_check_probe_note everywhere.
	(expand_function_start): Only emit a note for
	stack_check_probe_note with -fstack-protect.
	* stmt.c (expand_case): Don't emit NOTE_INSN_DELETED notes.

	* emit-rtl.c (remove_unnecessary_notes): Remove.
	(pass_remove_unnecessary_notes): Remove.
	* rtl.h (remove_unnecessary_notes): Remove prototype.
	* final.c (final_start_function): Don't call remove_unnecessary_notes.
	* tree-pass.h (pass_remove_unnecessary_notes): Remove.
	* passes.c (pass_remove_unnecessary_notes): Don't run it.

2006-03-20  Andrew Pinski  <pinskia@physics.uc.edu>

	PR tree-opt/26629
	* tree-ssa-pre (phi_translate): Handle ARRAY_REF's operands.
	(valid_in_set): Handle ARRAY_REF.
	Change "if min_variant or VH" to asserts.
	(create_component_ref_by_pieces): Handle ARRAY_REF.
	(create_expression_by_pieces): Likewise.
	(can_PRE_operation): ARRAY_REFs can now be PRE'd.

2006-03-20  David Edelsohn  <edelsohn@gnu.org>

	* genpreds.c (write_insn_extra_address_constraint): Argument `c'
	is operand of switch, not str[0].

2006-03-20  Alan Modra  <amodra@bigpond.net.au>

	* config/rs6000/rs6000.c (rs6000_handle_option): Use
	TARGET_NO_FP_IN_TOC inside #ifdef TARGET_USES_SYSV4_OPT too.

2006-03-19  David Edelsohn  <edelsohn@gnu.org>

	* genpreds.c (write_tm_preds_h): Add semicolon and newline at
	end of insn_extra_address_constraint declaration.

2006-03-19  David Edelsohn  <edelsohn@gnu.org>

	* config/rs6000/rs6000.opt (no-fp-in-toc): Use Var not Mask.
	(no-sum-in-toc): Same.
	* config/rs6000/rs6000.c (rs6000_handle_option): Use new
	variables.
	* config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): Set
	NO_FP_IN_TOC for -fPIC instead of mask.

	* config/rs6000/t-aix43 (T_ADAFLAGS): Delete.
	(BOOT_LDFLAGS): Delete.
	(LDFLAGS): Delete.
	* config/rs6000/t-aix52: Same.

	* config/rs6000/rs6000.md (store_multiple_power): Delete.
	(stmsi[345678]_power): New.

2006-03-17  Steve Ellcey  <sje@cup.hp.com>

	* config/ia64/ia64.opt: Add empty line to end of file.

2006-03-17  Richard Guenther  <rguenther@suse.de>

	PR middle-end/26721
	* builtins.c (get_pointer_alignment): For component style references
	adjust alignment to the component type alignment.  Make sure
	to adjust alignment for component access of constants.

2006-03-17  David Edelsohn  <edelsohn@gnu.org>

	* config/rs6000/rs6000.md (strlensi): Emit barrier after
	unconditional jump.

2006-03-17  Paul Brook  <paul@codesourcery.com>

	* doc/install.texi: Docuemnt --with-mode.
	* config.gcc: Add --with-mode for arm*-*-*.
	* config/arm/arm.h (OPTION_DEFAULT_SPECS): Add "mode".

2006-03-17  J"orn Rennecke <joern.rennecke@st.com>

	* sh.c (max_labelno_before_reorg): New variable.
	(sh_reorg): Initialize it.
	(find_barrier): Check max_labelno_before_reorg before using
	label_to_alignment.  Take length of explicit alignment insns
	into account.  When seeing a UNSPECV_CONST_END, return it.

	* sh.c (fixup_mova): Set mode of affected label to QImode.
	(untangle_mova): New function.
	(find_barrier): Use it.  Check mode of label before decrementing
	num_mova.
	(sh_reorg): Likewise.
	Set mode of all insns back to VOIDmode.

	* sh.c (MOVA_LABELREF): New macro.
	(mova_p, fixup_mova, sh_reorg): Use it.
	(find_barrier, sh_reorg): Don't count num_mova back to 0 unless
	ADDR_DIFF_VEC matches mova.

2006-03-17  Steven Bosscher  <stevenb.gcc@gmail.com>

	* dwarf2asm.c (dw2_asm_output_offset): Mark 'base' argument
	with ATTRIBUTE_UNUSED.

2006-03-17  Alexandre Oliva  <aoliva@redhat.com>

	* dwarf2out.c (dwarf2out_stack_adjust): Always track the stack
	pointer, instead of assuming it is possible to derive the
	correct args size from a call insn.

2006-03-16  Jan-Benedict Glaw  <jbglaw@lug-owl.de>

	* rtl.h (CONST_INT_P): Define.
	* config/vax/vax.c (print_operand_address): Use CONST_INT_P()
	instead of GET_CODE(x) == CONST_INT.
	(vax_rtx_costs): Likewise.
	(vax_output_int_move): Likewise.
	(vax_output_int_add): Likewise.
	(legitimate_constant_address_p): Likewise.
	(index_term_p): Likewise.
	* config/vax/vax.h (PRINT_OPERAND): Likewise.
	* config/vax/vax.md (and<mode>3): Likewise.
	(ashrsi3): Likewise.
	(extv): Likewise.
	(movstricthi): Likewise.
	(movstrictqi): Likewise.
	(rotrsi3): Likewise.
	(five unnamed insns): Likewise.

2006-03-16  Geoffrey Keating  <geoffk@apple.com>

	* doc/tm.texi (SDB and DWARF): Add extra parameter to
	ASM_OUTPUT_DWARF_OFFSET.  Use @var to indicate metavariables.
	* dwarf2asm.h (dw2_asm_output_offset): Add section parameter.
	* dwarf2asm.c (dw2_asm_output_offset): Add base section parameter.
	Pass to ASM_OUTPUT_DWARF_OFFSET.
	* dwarf2out.c (debug_frame_section): New.
	(output_call_frame_info): Use debug_frame_section.  Pass it to
	dw2_asm_output_offset.
	(output_die): Pass appropriate section to dw2_asm_output_offset.
	(output_compilation_unit_header): Likewise.
	(output_pubnames): Likewise.
	(output_aranges): Likewise.
	(enum dw_val_class): Break dw_val_class_lbl_offset into
	dw_val_class_lineptr and dw_val_class_macptr.
	(add_AT_lbl_offset): Delete.
	(add_AT_lineptr): New.
	(add_AT_macptr): New.
	(AT_lbl): Expect a lineptr or macptr.
	(print_die): Handle dw_val_class_lineptr and dw_val_class_macptr.
	(attr_checksum): Likewise.
	(same_dw_val_p): Likewise.
	(size_of_die): Likewise.
	(value_format): Likewise.
	(output_die): Likewise.
	(dwarf2out_finish): Call add_AT_lineptr and add_AT_macptr instead of
	add_AT_lbl_offset.
	* config/i386/cygming.h (ASM_OUTPUT_DWARF_OFFSET): Add extra parameter.
	* config/i386/i386.c (x86_file_start): Call darwin_file_start.
	* config/darwin-protos.h (darwin_file_start): New.
	(darwin_asm_output_dwarf_offset): New.
	* config/ia64/ia64.h (ASM_OUTPUT_DWARF_OFFSET): Add extra parameter.
	* config/rs6000/rs6000.c (rs6000_darwin_file_start): Call
	darwin_file_start.
	* config/darwin.c (darwin_emit_unwind_label): Don't output label
	if not EH section; simplify.
	(darwin_file_start): New.
	(darwin_asm_output_dwarf_offset): New.
	* config/darwin.h (DEBUG_FRAME_SECTION): In __DWARF segment,
	mark as 'debug'.
	(DEBUG_INFO_SECTION): Likewise.
	(DEBUG_ABBREV_SECTION): Likewise.
	(DEBUG_ARANGES_SECTION): Likewise.
	(DEBUG_MACINFO_SECTION): Likewise.
	(DEBUG_LINE_SECTION): Likewise.
	(DEBUG_LOC_SECTION): Likewise.
	(DEBUG_PUBNAMES_SECTION): Likewise.
	(DEBUG_STR_SECTION): Likewise.
	(DEBUG_RANGES_SECTION): Likewise.
	(FRAME_BEGIN_LABEL): Must start with 'L' in debug section.
	(ASM_OUTPUT_DWARF_OFFSET): New.

2006-03-16  Joseph S. Myers  <joseph@codesourcery.com>

	* config.gcc (tm_defines): Always add to previous value rather
	than replacing it.

2006-03-16  Richard Sandiford  <richard@codesourcery.com>

	* config/mips/predicates.md (splittable_const_int_operand): New,
	split from move_operand.
	(splittable_symbolic_operand): New.
	(move_operand): Add commentary.  Use splittable_const_int_operand.
	Inline mips_atomic_symbolic_constant_p.
	* config/mips/mips.md: Add combine splitters for handling moves
	of splittable_const_int_operands and splittable_symbolic_operands.
	* config/mips/mips-protos.h (mips_atomic_symbolic_constant_p): Delete.
	(mips_split_symbol): Declare.
	(mips_move_integer): Declare.
	* config/mips/mips.c (mips_split_p): Make global.
	(TARGET_MIN_ANCHOR_OFFSET): Override default.
	(TARGET_MAX_ANCHOR_OFFSET): Likewise.
	(TARGET_USE_BLOCKS_FOR_CONSTANT_P): Likewise.
	(TARGET_USE_ANCHORS_FOR_SYMBOL_P): Likewise.
	(mips_offset_within_object_p): Handle block symbols.
	(mips_atomic_symbolic_constant_p): Delete.
	(mips_cannot_force_const_mem): Return false for constants that
	mips_legitimize_move can handle.
	(mips_use_blocks_for_constant_p): New function.
	(mips_split_symbol): Make global.
	(mips_move_integer): Likewise.  Add a temporary register argument.
	(mips_legitimize_const_move): Use splittable_const_int_operand and
	splittable_symbolic_operand.
	(mips_use_anchors_for_symbol_p): New function.
	* config/mips/mips.h: Protect externs with !USED_FOR_TARGET.
	(mips_split_p): Declare.

2006-03-16  Richard Sandiford  <richard@codesourcery.com>

	* config.gcc (mips64*-*-linux*): Keep existing tm_defines.
	(mips*-*-linux*): Likewise.

2006-03-16  Roger Sayle  <roger@eyesopen.com>
	    Daniel Speyer  <dspeyer@wam.umd.edu>

	PR middle-end/18259
	* tree-dump.c (dump_real): New function.
	(dequeue_and_dump) <REAL_CST>: Use it to dump FP constants.
	* Makefile.in (REAL_H): New macro for dependencies on real.h.
	(tree-dump.o): Add $(REAL_H) to the dependencies.

2006-03-16  Roger Sayle  <roger@eyesopen.com>

	PR middle-end/21781
	* real.c (real_from_string): If the mantissa is zero, don't bother
	parsing the exponent as the result should always be zero.

2006-03-16  Andreas Krebbel  <krebbel1@de.ibm.com>

	* simplify-rtx.c (simplify_plus_minus): Simplify within CONST terms.

2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>

	* config/ia64/ia64.c (stops_p): Added explicit initialization.
	(ia64_first_cycle_multipass_dfa_lookahead_guard_spec,
	ia64_h_i_d_extended, ia64_set_sched_flags, ia64_speculate_insn,
	ia64_needs_block_p, ia64_gen_check, ia64_sched_init_global,
	ia64_sched_finish_global): New static functions to implement
	hooks from gcc_target.sched.
	(spec_check_no, max_uid, pending_data_specs): New static variables.
	(ia64_mode_to_int, ia64_gen_spec_insn, ia64_spec_check_p,
	ia64_spec_check_src_p): New static functions.
	(ia64_adjust_cost): Renamed to ia64_adjust_cost_2.
	(TARGET_SCHED_ADJUST_COST): Removed.
	(TARGET_SCHED_ADJUST_COST_2, TARGET_SCHED_INIT_GLOBAL,
	TARGET_SCHED_FINISH_GLOBAL, TARGET_SCHED_H_I_D_EXTENDED,
	TARGET_SCHED_SPECULATE_INSN, TARGET_SCHED_NEEDS_BLOCK_P,
	TARGET_SCHED_GEN_CHECK,
	TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD_SPEC,
	TARGET_SCHED_SET_SCHED_FLAGS): New macros.
	(update_set_flags, group_barrier_needed, set_src_needs_barrier):
	Fixed to handle speculation checks.
	(rtx_needs_barrier): Fixed to handle speculative loads and
	their checks.
	(ia64_variable_issue): Added code to count speculative loads and their
	checks.
	(ia64_first_cycle_multipass_dfa_lookahead_guard): Fixed to handle
	speculative loads.
	(enum SPEC_MODES, enum SPEC_GEN_LD_MAP, SPEC_GEN_CHECK_OFFSET):
	New enumerations.
	(SPEC_GEN_EXTEND_OFFSET, SPEC_N, SPEC_GEN_CHECK_MUTATION_OFFSET):
	New constants.
	(ia64_ld_address_bypass_p): Fixed to handle speculative loads.
	(ia64_reorg): Reset stops_p to NULL after it is freed.
	* config/ia64/ia64.md (UNSPEC_LDA, UNSPEC_LDS, UNSPEC_LDSA,
	UNSPEC_LDCCLR, UNSPEC_CHKACLR, UNSPEC_CHKS): New constants.
	(itanium_class): chk_s renamed to chk_s_i.  New constants: chk_s_f,
	chk_a.
	(data_speculative, control_speculative, check_load): New attributes.
	(mov<mode>_advanced, mov<mode>_speculative,
	mov<mode>_speculative_advanced, zero_extend<mode>di2_advanced,
	zero_extend<mode>di2_speculative,
	zero_extend<mode>di2_speculative_advanced): New patterns for
	data and control speculative loads.
	(mov<mode>_clr, zero_extend<mode>di2_clr): New patterns for
	check loads.
	(advanced_load_check_clr_<mode>, speculation_check_<mode>):
	New pattern for data and control speculation checks.
	(MODE, MODE_FOR_EXTEND, output_a, output_s, output_sa, output_c_clr,
	ld_reg_constr, ldc_reg_constr, chk_reg_constr, mem_constr,
	reg_pred_prefix, ld_class, chka_class, chks_class, attr_yes):
	Auxiliary definitions for the patterns.
	* config/ia64/itanium1.md (1_fldc, 1_fldpc, 1_ldc, 1_chk_s_f, 1_chk_a,
	1b_fldc, 1b_fldpc, 1b_ldc, 1b_chk_s_f, 1b_chk_a): New resource
	constraints.
	(1_fld, 1_fldp, 1_ld, 1b_fld, 1b_fldp, 1b_ld): Add a condition
	for speculation.
	(1_chk_s, 1b_chk_s): Renamed to 1_chk_s_i, 1b_chk_s_i.
	* config/ia64/itanium2.md (2_flda, 2_fldc, 2_fldpc, 2_ldc, 2_chk_s_f,
	2_chk_a, 2b_flda, 2b_fldc, 2b_fldpc, 2b_ldc, 2b_chk_s_f, 2b_chk_a):
	New resource constraints.
	(2_fld, 2_fldp, 2_ld, 2b_fld, 2b_fldp, 2b_ld): Add a condition
	for speculation.
	(2_chk_s, 2b_chk_s): Renamed to 2_chk_s_i, 2b_chk_s_i.
	* config/ia64/ia64.opt (msched-br-data-spec, msched-ar-data-spec,
	msched-control-spec, msched-br-in-data-spec, msched-ar-in-data-spec,
	msched-in-control-spec, msched-ldc, msched-control-ldc,
	msched-spec-verbose, msched-prefer-non-data-spec-insns,
	msched-prefer-non-control-spec-insns,
	msched-count-spec-in-critical-path): New flags to tune speculative
	scheduling.
	* doc/invoke.texi (msched-br-data-spec, msched-ar-data-spec,
	msched-control-spec, msched-br-in-data-spec, msched-ar-in-data-spec,
	msched-in-control-spec, msched-ldc, msched-control-ldc,
	msched-spec-verbose, msched-prefer-non-data-spec-insns,
	msched-prefer-non-control-spec-insns,
	msched-count-spec-in-critical-path): Document new flags.

2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>

	* target.h (struct spec_info_def): New opaque declaration.
	(struct gcc_target.sched): New fields: adjust_cost_2, h_i_d_extended,
	speculate_insn, needs_block_p, gen_check,
	first_cycle_multipass_dfa_lookahead_guard_spec, set_sched_flags.
	* target-def.h (TARGET_SCHED_ADJUST_COST_2,
	TARGET_SCHED_H_I_D_EXTENDED, TARGET_SCHED_SPECULATE_INSN,
	TARGET_SCHED_NEEDS_BLOCK_P, TARGET_SCHED_GEN_CHECK,
	TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD_SPEC,
	TARGET_SCHED_SET_SCHED_FLAGS): New macros to initialize fields in
	gcc_target.sched.
	(TARGET_SCHED): Use new macros.
	* rtl.h (copy_DEPS_LIST_list): New prototype.
	* sched-int.h (struct sched_info): Change signature of new_ready field,
	adjust all initializations. New fields: add_remove_insn,
	begin_schedule_ready, add_block, advance_target_bb, fix_recovery_cfg,
	region_head_or_leaf_p.
	(struct spec_info_def): New structure declaration.
	(spec_info_t): New typedef.
	(struct haifa_insn_data): New fields: todo_spec, done_spec, check_spec,
	recovery_block, orig_pat.
	(glat_start, glat_end): New variables declaraions.
	(TODO_SPEC, DONE_SPEC, CHECK_SPEC, RECOVERY_BLOCK, ORIG_PAT):
	New access macros.
	(enum SCHED_FLAGS): New constants: SCHED_RGN, SCHED_EBB,
	DETACH_LIFE_INFO, USE_GLAT.
	(enum SPEC_SCHED_FLAGS): New enumeration.
	(NOTE_NOTE_BB_P): New macro.
	(extend_dependency_caches, xrecalloc, unlink_bb_notes, add_block,
	attach_life_info, debug_spec_status, check_reg_live): New functions.
	(get_block_head_tail): Change signature to get_ebb_head_tail, adjust
	all uses in ddg.c, modulo-sched.c, haifa-sched.c, sched-rgn.c,
	sched-ebb.c
	(get_dep_weak, ds_merge): Prototype functions from sched-deps.c .
	* ddg.c (get_block_head_tail): Adjust all uses.
	* modulo-sched.c (get_block_head_tail): Adjust all uses.
	(sms_sched_info): Initialize new fields.
	(contributes_to_priority): Removed.
	* haifa-sched.c (params.h): New include.
	(get_block_head_tail): Adjust all uses.
	(ISSUE_POINTS): New macro.
	(glat_start, glat_end): New global variables.
	(spec_info_var, spec_info, added_recovery_block_p, nr_begin_data,
	nr_be_in_data, nr_begin_control, nr_be_in_control, bb_header,
	old_last_basic_block, before_recovery, current_sched_info_var,
	rgn_n_insns, luid): New static variables.
	(insn_cost1): New function.  Move logic from insn_cost to here.
	(find_insn_reg_weight1): New function.  Move logic from
	find_insn_reg_weight to here.
	(reemit_notes, move_insn, max_issue): Change signature.
	(move_insn1): Removed.
	(extend_h_i_d, extend_ready, extend_global, extend_all, init_h_i_d,
	extend_bb): New static functions to support extension of scheduler's
	data structures.
	(generate_recovery_code, process_insn_depend_be_in_spec,
	begin_speculative_block, add_to_speculative_block,
	init_before_recovery, create_recovery_block, create_check_block_twin,
	fix_recovery_deps): New static functions to support
	generation of recovery code.
	(fix_jump_move, find_fallthru_edge, dump_new_block_header,
	restore_bb_notes, move_block_after_check, move_succs): New static
	functions to support ebb scheduling.
	(init_glat, init_glat1, attach_life_info1, free_glat): New static
	functions to support handling of register live information.
	(associate_line_notes_with_blocks, change_pattern, speculate_insn,
	sched_remove_insn, clear_priorities, calc_priorities, bb_note,
	add_jump_dependencies):	New static functions.
	(check_cfg, has_edge_p, check_sched_flags): New static functions for
	consistancy checking.
	(debug_spec_status): New function to call from debugger.
	(priority): Added code to handle speculation checks.
	(rank_for_schedule): Added code to distinguish speculative instructions.
	(schedule_insn): Added code to handle speculation checks.
	(unlink_other_notes, rm_line_notes, restore_line_notes, rm_other_notes):
	Fixed to handle ebbs.
	(move_insn): Added code to handle ebb scheduling.
	(max_issue): Added code to use ISSUE_POINTS of instructions.
	(choose_ready): Added code to choose between speculative and
	non-speculative instructions.
	(schedule_block): Added code to handle ebb scheduling and scheduling of
	speculative instructions.
	(sched_init): Initialize new variables.
	(sched_finish): Free new variables.  Print statistics.
	(try_ready): Added code to handle speculative instructions.
	* lists.c (copy_DEPS_LIST_list): New function.
	* sched-deps.c (extend_dependency_caches): New function.  Move logic
	from create_dependency_caches to here.
	(get_dep_weak, ds_merge): Make global.
	* genattr.c (main): Code to output prototype for
	dfa_clear_single_insn_cache.
	* genautomata.c (DFA_CLEAR_SINGLE_INSN_CACHE_FUNC_NAME): New macros.
	(output_dfa_clean_insn_cache_func): Code to output
	dfa_clear_single_insn_cache function.
	* sched-ebb.c (target_n_insns): Remove.  Adjust all users to use
	n_insns.
	(can_schedule_ready_p, fix_basic_block_boundaries, add_missing_bbs):
	Removed.
	(n_insns, dont_calc_deps, ebb_head, ebb_tail, last_bb):
	New static variables.
	(begin_schedule_ready, add_remove_insn, add_block1, advance_target_bb,
	fix_recovery_cfg, ebb_head_or_leaf_p): Implement hooks from
	struct sched_info.
	(ebb_sched_info): Initialize new fields.
	(get_block_head_tail): Adjust all uses.
	(compute_jump_reg_dependencies): Fixed to use glat_start.
	(schedule_ebb): Code to remove unreachable last block.
	(schedule_ebbs): Added code to update register live information.
	* sched-rgn.c (region_sched_info): Initialize new fields.
	(get_block_head_tail): Adjust all uses.
	(last_was_jump): Removed.  Adjust users.
	(begin_schedule_ready, add_remove_insn, insn_points, extend_regions,
	add_block1, fix_recovery_cfg, advance_target_bb, region_head_or_leaf_p):
	Implement new hooks.
	(check_dead_notes1): New static function.
	(struct region): New fields: dont_calc_deps, has_real_ebb.
	(RGN_DONT_CALC_DEPS, RGN_HAS_REAL_EBB): New access macros.
	(BB_TO_BLOCK): Fixed to handle EBBs.
	(EBB_FIRST_BB, EBB_LAST_BB): New macros.
	(ebb_head): New static variable.
	(debug_regions, contributes_to_priority): Fixed to handle EBBs.
	(find_single_block_regions, find_rgns, find_more_rgns): Initialize
	new fields.
	(compute_dom_prob_ps): New assertion.
	(check_live_1, update_live_1): Fixed to work with glat_start instead of
	global_live_at_start.
	(init_ready_list): New assertions.
	(can_schedule_ready_p): Split update code to begin_schedule_ready.
	(new_ready): Add support for BEGIN_CONTROL speculation.
	(schedule_insns): Fixed code that updates register live information
	to handle EBBs.
	(schedule_region): Fixed to handle EBBs.
	(init_regions): Use extend_regions and check_dead_notes1.
	* params.def (PARAM_MAX_SCHED_INSN_CONFLICT_DELAY,
	PARAM_SCHED_SPEC_PROB_CUTOFF): New parameters.
	* doc/tm.texi (TARGET_SCHED_ADJUST_COST_2, TARGET_SCHED_H_I_D_EXTENDED,
	TARGET_SCHED_SPECULATE_INSN, TARGET_SCHED_NEEDS_BLOCK_P,
	TARGET_SCHED_GEN_CHECK,
	TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD_SPEC,
	TARGET_SCHED_SET_SCHED_FLAGS): Document.
	* doc/invoke.texi (max-sched-insn-conflict-delay,
	sched-spec-prob-cutoff): Document.

2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>

	* sched-int.h (struct haifa_insn_data): New fields: resolved_deps,
	inter_tick, queue_index.
	(struct sched_info): Change signature of init_ready_list field.
	Adjust all initializations.
	(RESOLVED_DEPS): New access macro.
	(ready_add): Remove prototype.
	(try_ready): Add prototype.
	* sched-rgn.c (init_ready_list): Use try_ready.
	(schedule_region): Initialize
	current_sched_info->{sched_max_insns_priority, queue_must_finish_empty}.
	* sched-ebb.c (new_ready): Remove.  Adjust ebb_sched_info.
	(init_ready_list): Use try_ready.
	(schedule_ebb): Initialize current_sched_info->sched_max_insns_priority.
	* lists.c (remove_list_elem): Remove `static'.
	(remove_free_INSN_LIST_elem): New function.
	* rtl.h (remove_list_elem, remove_free_INSN_LIST_elem): Add prototypes.
	* haifa-sched.c (INTER_TICK, QUEUE_INDEX): New macros.
	(INVALID_TICK, MIN_TICK, QUEUE_SCHEDULED, QUEUE_NOWHERE, QUEUE_READY):
	New constants.
	(readyp): New variable.
	(queue_remove, ready_remove_insn, fix_inter_tick, fix_tick_ready,
	change_queue_index, resolve_dep): New static functions.
	(try_ready): New function.  Adjust callers in sched-rgn.c and
	sched-ebb.c to use it instead of ready_add.
	(clock_var): Move at the begining of file.
	(rank_for_schedule): Fix typo.
	(queue_insn): Add assertion.  Handle QUEUE_INDEX.
	(ready_lastpos): Enforce assertion.
	(ready_add): Make it static.  Handle QUEUE_INDEX.  Add new argument,
	update all callers.
	(ready_remove_first, ready_remove): Handle QUEUE_INDEX.
	(schedule_insn): Rewrite to use try_ready and resolve_dep.
	(queue_to_ready): Use free_INSN_LIST_list.
	(early_queue_to_ready): Fix typo.
	(schedule_block): Init readyp.  Move init_ready_list call after the
	initialization of clock_var.  Fix error in rejecting insn by
	targetm.sched.dfa_new_cycle.  Add call to fix_inter_tick.  Remove code
	that previously	corrected INSN_TICKs.  Add code for handling
	QUEUE_INDEX.
	(set_priorities): Fix typo.
	(sched_init): Initialize INSN_TICK, INTER_TICK and QUEUE_INDEX.
	Clarify comment and code that keeps current_sched_info->next_tail
	non-null.

2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>

	* sched-rgn.c (extend_rgns): New static function.
	(find_rgns): Use it.
	(gather_region_statistics, print_region_statistics): New static
	functions.
	* params.def (PARAM_MAX_SCHED_EXTEND_REGIONS_ITERS): New parameter.
	* doc/invoke.texi (max-sched-extend-regions-iters): Document.

2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
	    Andrey Belevantsev <abel@ispras.ru>

	* ddg.c (build_intra_loop_deps): Adjust add_forward_dependence call.
	* lists.c (unused_deps_list): New variable.
	(free_list): Add assertions to verify the proper distinguishing
	between INSN_LISTs and DEPS_LISTs.
	(find_list_elem, remove_list_elem, remove_list_node): New static
	functions.
	(alloc_DEPS_LIST, free_DEPS_LIST, free_DEPS_LIST_node,
	remove_free_INSN_LIST_elem, remove_free_DEPS_LIST_elem,
	remove_free_INSN_LIST_node, remove_free_DEPS_LIST_node): New functions.
	(alloc_INSN_LIST): Assert that the list we're working on is indeed
	an INSN_LIST.
	(free_INSN_LIST_node): Likewise.
	* modulo-sched.c (current_sched_info): Initialize flags field.
	* reg-notes.def: Exchange DEP_ANTI and DEP_OUTPUT.
	* rtl.def (DEPS_LIST): Define.
	* rtl.h: Declare new functions from lists.c.
	* sched-deps.c (spec_dependency_cache): New static variable.
	(maybe_add_or_update_back_dep_1, add_back_dep): New static functions.
	(add_dependence): Change return type to void.  Move the logic to ...
	(add_or_update_back_dep_1): ... here.  Handle speculative dependencies.
	(delete_all_dependences): Add comment about forward_dependency_cache.
	Handle spec_dependency_cache.  Handle DEPS_LISTs.
	(fixup_sched_groups): Clarify the change of priority of output
	and anti dependencies.
	(sched_analyze_2): Adjust add_dependence calls to create data
	speculative dependence.
	(add_forward_dependence): Renamed to add_forw_dep, change prototype.
	Adjust all callers.  Handle DEPS_LISTS.
	(compute_forward_dependences): Use add_forw_dep.  Sort LOG_LINKs in
	presence of speculation.
	(init_dependency_caches, free_dependency_caches):
	Handle spec_dependency_cache.
	(adjust_add_sorted_back_dep, adjust_back_add_forw_dep, delete_forw_dep,
	estimate_dep_weak, get_dep_weak, ds_merge, check_dep_status):
	New static functions.
	(add_or_update_back_dep, add_or_update_back_forw_dep,
	add_back_forw_dep, delete_back_forw_dep): New functions.
	* sched-int.h (ds_t, dw_t): New typedefs.
	(struct sched_info): Add new field flags.
	(struct haifa_insn_data): Add new bitfield has_internal_dep.
	Prototype new sched-deps.c functions.
	(HAS_INTERNAL_DEP, DEP_STATUS): New access macros.
	(BITS_PER_DEP_STATUS, BITS_PER_DEP_WEAK, DEP_WEAK_MASK, MAX_DEP_WEAK,
	MIN_DEP_WEAK, NO_DEP_WEAK, UNCERTAIN_DEP_WEAK, BEGIN_DATA, BE_IN_DATA,
	BEGIN_CONTROL, BE_IN_CONTROL, BEGIN_SPEC, DATA_SPEC, CONTROL_SPEC,
	SPECULATIVE, BE_IN_SPEC, FIRST_SPEC_TYPE, LAST_SPEC_TYPE,
	SPEC_TYPE_SHIFT, DEP_TRUE, DEP_OUTPUT, DEP_ANTI, DEP_TYPES, HARD_DEP):
	New constants.
	(enum SPEC_TYPES_OFFSETS, enum DEPS_ADJUST_RESULT, enum SCHED_FLAGS):
	New enums.
	* sched-rgn.c (current_sched_info): Initialize flags field.
	(schedule_insns): Initialize current_sched_info before the sched_init
	call.
	* sched-ebb.c (current_sched_info): Initialize flags field.
	(add_deps_for_risky_insns): Use control_flow_insn_p instead of JUMP_P.
	Call add_or_update_back_dep instead of add_dependence.
	Create control speculative dependencies.
	(schedule_insns): Initialize current_sched_info before the sched_init
	call.

2006-03-16  Kaz Kojima  <kkojima@gcc.gnu.org>

	* config/sh/linux-unwind.h (shmedia_fallback_frame_state): Set
	fs->signal_frame.
	(sh_fallback_frame_state): Likewise.

2006-03-15  Geoffrey Keating  <geoffk@apple.com>

	* config.gcc (*-*-darwin*): Don't build crt2.o for all Darwin ports.
	Do switch on default_use_cxa_atexit.
	(powerpc*-*-darwin*): Build crt2.o on powerpc.
	* config/darwin-crt3.o: New.
	* config/darwin.h (LINK_SPEC): If -shared-libgcc, make linker default
	to 10.3.  Pass '-multiply_defined suppress' if crt3.o is in use.
	(STARTFILE_SPEC): Add crt3.o when -shared-libgcc and appropriate
	OS version.
	* config/rs6000/t-darwin: Move crt2.o building to here.
	* config/rs6000/darwin.h (C_COMMON_OVERRIDE_OPTIONS): Update
	Mac OS version for using __cxa_get_exception_ptr.  Don't test versions
	of __cxa_atexit.

2006-03-15  Jan-Benedict Glaw  <jbglaw@lug-owl.de>

	* config/vax/vax.c (nonindexed_address_p): Change logical negation
	from '! xxx' to '!xxx' for coding-style conformance.
	* config/vax/vax.h (PCC_BITFIELD_TYPE_MATTERS): Likewise.
	(EXTRA_CONSTRAINT): Likewise.
	* config/vax/vax.md (four unnamed insns): Likewise.

2006-03-15  Paul Brook  <paul@codesourcery.com>

	* config/arm/arm.c (minipool_pad): New.
	(add_minipool_forward_ref): Include pool alignment padding in address
	calculation.
	(push_minipool_fix): Set minipool_pad.
	(minipool_pad): Ditto.

2006-03-15  Jan-Benedict Glaw  <jbglaw@lug-owl.de>

	* config/vax/vax.c (split_quadword_operands): Use MEM_P()
	instead of GET_CODE() == MEM and REG_P() instead of
	GET_CODE() == REG.
	(print_operand_address): Likewise.
	(vax_address_cost): Likewise.
	(vax_rtx_costs): Likewise.
	(vax_notice_update_cc): Likewise.
	(vax_output_int_add): Likewise.
	(INDEX_REGISTER_P): Likewise.
	(BASE_REGISTER_P): Likewise.
	(nonindexed_address_p): Likewise.
	(vax_mode_dependent_address_p): Likewise.
	* config/vax/vax.h (EXTRA_CONSTRAINT): Likewise.
	(PRINT_OPERAND): Likewise.
	* config/vax/vax.md (ashlsi3): Likewise.
	(ashlsi3): Likewise.
	(some more unnamed insns): Likewise.

2006-03-15  Kazu Hirata  <kazu@codesourcery.com>

	* tree-ssa-dce.c (EXECUTE_IF_CONTROL_DEPENDENT): Make it an
	iterator-style macro.
	(mark_control_dependent_edges_necessary): Update the use of
	EXECUTE_IF_CONTROL_DEPENDENT.

2006-03-15  J"orn Rennecke <joern.rennecke@st.com>

	* config/sh/predicates.md (cache_address_operand): Special.
	(ua_address_operand): Likewise.

2006-03-15  Zdenek Dvorak <dvorakz@suse.cz>

	* haifa-sched.c (unlink_other_notes, reemit_notes): Do not handle
	loop notes.
	* sched-deps.c (sched_analyze_insn, sched_analyze): Ditto.

2006-03-15  Andreas Schwab  <schwab@suse.de>

	* gensupport.c (identify_predicable_attribute): Don't free p_false
	when it is still in use.

2006-03-15  Eric Botcazou  <ebotcazou@libertysurf.fr>

	* config.gcc (default with_cpu setting) <sparc*-*-*>: Do not modify
	the default setting here.

2006-03-14  Steven Bosscher  <stevenb.gcc@gmail.com>

	* tree-pass.h (pass_cfg): Remove.
	* alias.c (rest_of_handle_cfg, pass_cfg): Remove.
	* passes.c (pass_cfg): Don't run it.

2006-03-14  Kazu Hirata  <kazu@codesourcery.com>

	* Makefile.in (reg-stack.o): Don't depend on gt-reg-stack.h.
	* reg-stack.c (stack_regs_mentioned_data): Change the type to
	VEC(char,heap) *.
	(stack_regs_mentioned): Update the uses of
	stack_regs_mentioned_data.  Don't access the array beyond its
	end.
	(reg_to_stack): Update the uses of stack_regs_mentioned_data.
	Don't include gt-reg-stack.h.

	* config/bfin/bfin.h (UNALIGNED_WORD_ASM_OP): Remove.
	* system.h (UNALIGNED_WORD_ASM_OP): Poison.

	* combine.c (UWIDE_SHIFT_LEFT_BY_BITS_PER_WORD): Remove.

	PR middle-end/26684
	* reg-stack.c (stack_regs_mentioned_data): Put it undef #ifdef
	STACK_REGS.

2006-03-14  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

	* pa/pa32-linux.h (CRT_CALL_STATIC_FUNCTION): Fix typo.

2006-03-14  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/26672
	* tree-ssa-propagate.c (set_rhs): Don't walk DEFs if not in
	SSA form.

2006-03-14  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/26667
	* ipa-inline.c (cgraph_check_inline_limits): Walk the correct
	node for the callees.  Always allow inlining if it will shrink
	the function size.

2006-03-14  Richard Guenther  <rguenther@suse.de>

	PR middle-end/26659
	* builtins.c (get_pointer_alignment): Prefer alignment
	information from decls over that from types.

2006-03-14  Andrew Pinski  <pinskia@physics.uc.edu>

	PR target/26657
	* config/darwin.h (LINK_COMMAND_SPEC): Handle -fopenmp.

2006-03-14  Joseph S. Myers  <joseph@codesourcery.com>

	* config/rs6000/rs6000.opt (mdlmzb): New option.
	(msched-prolog, msched-epilog): Use Var not Mask.
	* doc/invoke.texi (-mdlmzb): Document.
	* config/rs6000/rs6000.c (TARGET_DEFAULT_TARGET_FLAGS): Remove
	MASK_SCHED_PROLOG.
	(rs6000_override_options): Enable -mdlmzb for 405 and 440.
	* config/rs6000/rs6000.md: Add dlmzb support for 405 and 440.

2006-03-13  Uttam Pawar  <uttamp@us.ibm.com>

	PR rtl-optimization/25739
	* bt-load.c (augment_live_range): Free tos pointer.

	* gensupport.c (identify_predicable_attribute): Free
	p_false pointer.
	* gcov.c (create_file_names): Free name pointer.

2006-03-13  Roger Sayle  <roger@eyesopen.com>

	PR middle-end/26557
	* stmt.c (emit_case_nodes): Handle the case where the index is a
	CONST_INT, where the comparison mode is specified by the index type.

2006-03-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

	* pa/pa32-linux.h (CRT_CALL_STATIC_FUNCTION): Define when CRTSTUFFS_O
	is defined.

2006-03-13  Richard Sandiford  <richard@codesourcery.com>

	* config/mips/mips.md (*branch_fp): Use %Z2 for the condition.
	(*branch_fp_inverted): Likewise.

2006-03-13  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/25989
	* omp-low.c (expand_omp_for_generic): Mark istart0
	and iend0 as addressable.

2006-03-13  Jie Zhang  <jie.zhang@analog.com>

	* config/bfin/uclinux.h: Define _GNU_SOURCE in CPLUSPLUS_CPP_SPEC.

2006-03-13  Jeff Law  <law@redhat.com>

	* tree-vrp.c (stmt_interesting_for_vrp): Some statements with
	virtual operands are interesting.
	(vrp_visit_stmt): Corresponding changes.

2006-03-13  Bernd Schmidt  <bernd.schmidt@analog.com>

	* config/bfin/lib1funcs.asm (___umodsi3): Use stack to save contents
	of RETS.
	* config/bfin/bfin.h (TARGET_CPU_CPP_BUILTINS): If
	TARGET_ID_SHARED_LIBRARY, define __ID_SHARED_LIB__.
	* config/bfin/crti.S: Use it instead of __PIC__.
	* config/bfin/crtn.S: Likewise.

	* config/bfin/bfin.md (call_value_symbol, sibcall_value_symbol,
	call_symbol, sibcall_symbol): Disallow if TARGET_ID_SHARED_LIBRARY,
	not if flag_pic.
	Lose 'G' modifier for call operand.
	* config/bfin/bfin.c (print_operand) <case SYMBOL_REF>: Don't
	recognize 'G' modifier.

2006-03-13  Eric Botcazou  <ebotcazou@adacore.com>

	PR middle-end/18859
	* gimplify.c (gimplify_switch_expr): Discard empty ranges.
	* stmt.c (expand_case): Likewise.

2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>

	PR rtl-optimization/26254
	* loop-invariant.c (seq_insns_valid_p): New function.
	(move_invariant_reg): Only emit new code if it is valid.

2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>

	* cfgrtl.c (last_loop_beg_note, back_edge_of_syntactic_loop_p):
	Removed.
	(force_nonfallthru_and_redirect): Do not use last_loop_beg_note.
	(rtl_split_edge): Do not use back_edge_of_syntactic_loop_p.
	(commit_one_edge_insertion): Do not look for loop notes.

2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>

	* jump.c (follow_jumps): Do not check for loop notes.  Move check for
	flag_test_coverage out of loop.

2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>

	* final.c (shorten_branches): Remove outdated comment, and turn
	the if branch that guards it to continue.

2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>

	* cfgloop.c (flow_loop_dump): Do not dump loop->invalid field.
	* cfgloop.h (struct loop): Remove unused fields.

2006-03-13  Kazu Hirata  <kazu@codesourcery.com>

	* doc/invoke.texi (-fdump-rtl-loop): Remove.
	(-dL, -fdump-rtl-loop2): Update the dump file names

	* doc/invoke.texi: Update dump file names.

2006-03-12  Steven Bosscher  <stevenb.gcc@gmail.com>

	* predict.c (estimate_probability): Remove.
	* profile.c (rest_of_handle_branch_prob, pass_branch_prob): Remove.
	* basic-block.h (estimate_probability): Remove prototype.
	* passes.c (finish_optimization_passes): Dump branch prediction or
	profiling heuristics to the .profile tree dump.
	(init_optimization_passes): Unqueue pass_branch_prob.

	* doc/invoke.texi (-fdump-rtl-bp): Remove.

2006-03-11  Steven Bosscher  <stevenb.gcc@gmail.com>

	* rtl.def (LABEL_REF): Remove the field for LABEL_NEXTREF.
	* rtl.h (LABEL_NEXTREF): Remove field accessor.

2006-03-11  Eric Botcazou  <ebotcazou@adacore.com>

	* function.h (frame_offset_overflow): Declare.
	* function.c (frame_offset_overflow): New function.
	(assign_stack_local_1): Call it to detect that the offset overflows.
	* cfgexpand.c (alloc_stack_frame_space): Likewise.

2006-03-11  Steven Bosscher  <stevenb.gcc@gmail.com>

	* config/sh/sh.c: Include alloc-pool.h.
	(label_ref_list_pool): New alloc pool.
	(label_ref_list_t): New type for lists of labels.
	(struct pool_node): Make wend a label_ref_list_t.
	(add_constant): Use the new type, eradicate LABEL_NEXTREF
	references.
	(dump_table): Likewise.
	(sh_reorg): Set up the alloc pool before using add_constant and
	dump_table, and destroy it when finishing.

2006-03-11  Richard Sandiford  <richard@codesourcery.com>

	* config/mips/mips.c: Remove redundant comment.

2006-03-10  Jason Merrill  <jason@redhat.com>

	PR c/26004
	* gimplify.c (gimplify_modify_expr_rhs): Don't do return slot opt if
	the target was declared 'register'.

2006-03-10  Adam Nemet  <anemet@caviumnetworks.com>

	* genpreds.c (write_insn_constraint_len): Change definition of
	insn_constraint_len to return size_t to match the declaration.

2006-03-10  DJ Delorie  <dj@redhat.com>

	* config/m32c/m32c.c (m32c_const_ok_for_constraint_p): Bit numbers
	start at zero.
	(m32c_expand_insv): Fix test for an AND mask.

2006-03-10  Richard Guenther  <rguenther@suse.de>

	PR middle-end/26565
	* builtins.c (get_pointer_alignment): Handle component
	references for field alignment.

2006-03-10  J"orn Rennecke <joern.rennecke@st.com>

	* config.gcc (sh*-superh-elf, sh*elf (newlib)): Use newlib.h
	when building with libgloss.
	(sh*elf): Implement --without-fp option.
	(sh64-superh-linux*): Don't multilib.

2006-03-10  J"orn Rennecke <joern.rennecke@st.com>

	* struct-equiv.c (rtx_equiv_p): Fix POST_MODIFY case.

2006-03-09  Andrew Pinski  <pinskia@physics.uc.edu>

	* tree-ssa-phiopt.c (tree_ssa_phiopt): Add cfgchanged variable.
	Set it when one of the replacement functions returned true.
	Return TODO_cleanup_cfg if cfgchanged is true.
	(pass_phiopt) <todo_flags_finish>: Remove TODO_cleanup_cfg.

2006-03-09  Adam Nemet  <anemet@caviumnetworks.com>

	* combine.c (simplify_shift_const_1): Use gen_lowpart_or_truncate
	instead of gen_lowpart.

2006-03-09  Richard Sandiford  <richard@codesourcery.com>

	* config/mips/mips-protos.h (mips_output_conditional_branch): Change
	interface.
	(mips_output_order_conditional_branch): Declare.
	* config/mips/mips.h (MIPS_BRANCH): New macro.
	* config/mips/mips.c (gen_conditional_branch): Use VOIDmode
	for the comparison.  Use gen_condjump.
	(mips_output_conditional_branch): Rework interface to take the
	asm templates for a direct branch and the inverse of a direct branch.
	(mips_output_order_conditional_branch): New function.
	(mips_builtin_branch_and_move): New function.
	(mips_expand_builtin_compare): Use it.  Use VOIDmode for the
	branch condition.  Use gen_single_cc as the condition for
	__builtin_mips_upper_* or __builtin_mips_lower_*.
	(mips_expand_builtin_bposge): Use mips_builtin_branch_and_move.
	Use VOIDmode for the branch condition.
	* config/mips/predicates.md (order_operator): New predicate.
	* config/mips/mips.md (UNSPEC_SINGLE_CC): New constant.
	(branch_fp): Rename to...
	(*branch_fp): ...this.  Remove mode from comparison operator.
	Use new mips_output_conditional_branch interface.
	(branch_fp_inverted): Rename to...
	(*branch_fp_inverted): ...this and update as for *branch_fp.
	(*branch_zero<mode>): Rename to...
	(*branch_order<mode>): ...this.  Remove mode from comparison operator.
	Use mips_output_order_conditional_branch.  Only accept ordered
	comparisons.
	(*branch_zero<mode>_inverted): Rename to...
	(*branch_order<mode>_inverted): ...this and update as for
	*branch_order<mode>.
	(*branch_equality<mode>): Accept zero as the second operand to
	the equality operator.  Use the new mips_output_conditional_branch
	interface.
	(*branch_equality<mode>_inverted): Likewise.
	(condjump): New expander.
	* config/mips/mips-dsp.md (mips_bposge): Remove mode from comparison
	operator.
	* config/mips/mips-ps-3d.md (bc1any4t, bc1any4f): Likewise.
	(bc1any2t, bc1any2f): Likewise.
	(single_cc): New expander.
	(*branch_upper_lower, *branch_upper_lower_inverted): New patterns.

2006-03-09  Richard Sandiford  <richard@codesourcery.com>

	* doc/md.texi: Update documentation of MIPS constraints.
	* config/mips/constraints.md: New file.
	* config/mips/mips.md: Include it.
	* config/mips/mips.c (mips_char_to_class): Delete.
	(override_options): Don't initialize mips_char_to_class.
	* config/mips/mips.h (mips_char_to_class): Delete.
	(REG_CLASS_FROM_LETTER): Delete.
	(CONST_OK_FOR_LETTER_P): Delete.
	(CONST_DOUBLE_OK_FOR_LETTER_P): Delete.
	(EXTRA_CONSTRAINT_Y): Delete.
	(EXTRA_CONSTRAINT_STR): Delete.
	(CONSTRAINT_LEN): Delete.
	(EXTRA_MEMORY_CONSTRAINT): Delete.

2006-03-09  Diego Novillo  <dnovillo@redhat.com>

	* tree-cfg.c (move_block_to_fn): Remove the statements from the
	original fn's eh regions.

2006-03-09  Eric Botcazou  <ebotcazou@adacore.com>

	* fold-const.c (build_range_check): Make sure to use a valid type to
	apply the "(c>=low) && (c<=high) into (c-low>=0) && (c-low<=high-low)"
	transformation.

	(range_predecessor): New static function.
	(range_successor): Likewise.
	(merge_ranges): Use them to compute predecessors and successors of
	range bounds.

2006-03-09  Roger Sayle  <roger@eyesopen.com>

	PR middle-end/26561
	* fold-const.c (fold_div_compare): When optimizing X/C1 op C2 as
	X op C3, consider whether C3 overflows towards +Inf or -Inf.

2006-03-08  DJ Delorie  <dj@redhat.com>

	* config/m32c/addsub.md (addqi3): Disparage a0/a1.
	(addpsi3): Expand to include memory operands.  Remove
	reload-specific splits.
	* config/m32c/bitops.md (bset_qi, bset_hi, bclr_qi): New.
	(andqi3_16, andhi3_16, iorqi3_16, iorhi3_16): New.
	(andqi3_24, andhi3_24, iorqi3_24, iorhi3_24): New.
	(andqi3, andhi3, iorqi3, iorhi3): Convert to expanders.
	(shift1_qi, shift1_hi, insv): New.
	* config/m32c/cond.md (cbranchqi4, cbranchhi4): Remove.
	(cbranch<mode>4, stzx_16, stzx_24_<mode>, stzx_reversed,
	cmp<mode>, b<code>, s<code>, s<code>_24, movqicc, movhicc,
	cond_to_int): New.
	* config/m32c/m32c-protos.h: Update as needed.
	* config/m32c/m32c.c (m32c_reg_class_from_constraint): Don't
	default the Rcr, Rcl, Raw, and Ral constraints.  Add Ra0 and Ra1.
	Fail for unrecognized R* constraints.
	(m32c_cannot_change_mode_class): Be more picky about pseudos.
	(m32c_const_ok_for_constraint_p): Add Imb, Imw, and I00.
	(m32c_extra_constraint_p2): Allow (mem (plus (plus fb int) int)).
	Add Sp constraint.
	(m32c_init_libfuncs): New.
	(m32c_legitimate_address_p): Add debug wrapper.
	(m32c_rtx_costs): New.
	(m32c_address_cost): New.
	(conversions): Add 'B' prefix.
	(m32c_print_operand): 'h' and 'H' pick lower and upper halves of
	operands, or word regnames for QI operands.  'B' prints bit
	position.
	(m32c_expand_setmemhi): New.
	(m32c_expand_movmemhi): New.
	(m32c_expand_movstr): New.
	(m32c_expand_cmpstr): New.
	(m32c_prepare_shift): Shift counts are limited to 16 bits at a time.
	(m32c_expand_neg_mulpsi3): Handle non-ints.
	(m32c_cmp_flg_0): New.
	(m32c_expand_movcc): New.
	(m32c_expand_insv): New.
	(m32c_scc_pattern): New.
	* config/m32c/m32c.h (reg classes): Add AO_REGS and A1_REGS.  Take
	a0/a1 out of SIregs.
	(STORE_FLAG_VALUE): New.
	* config/m32c/m32c.md: Add unspecs for string moves.  Define various mode and
	code macros.
	(no_insn): New.
	* config/m32c/mov.md: Make constraints more liberal.
	(zero_extendqihi2): Optimize r0/r1 case.
	* config/m32c/muldiv.md (mulpsi3): Check for intvals.
	* config/m32c/predicates.md (m32c_any_operand): New.
	(m32c_nonimmediate_operand): New.
	(m32c_hl_operand): New.
	(m32c_r3_operand): New.
	(ap_operand): New.
	(ma_operand): New.
	(memsym_operand): New.
	(memimmed_operand): New.
	(a_qi_operand): New.
	(m32c_eqne_operator): New.
	(m32c_1bit8_operand): New.
	(m32c_1bit16_operand): New.
	(m32c_1mask8_operand): New.
	(m32c_1mask16_operand): New.
	* config/m32c/blkmov.md: New file.
	* config/m32c/t-m32c (MD_FILES): Add blkmov.

2006-03-08  Andreas Tobler  <a.tobler@schweiz.ch>

	* dwarf2out.c (expand_builtin_dwarf_sp_column): Make dwarf_regnum
	unsigned to fix signed/unsigned comparison issue in
	DWARF2_FRAME_REG_OUT.
	(expand_builtin_init_dwarf_reg_sizes): Make i unsigned to fix signed/
	unsigned comparison issue in DWARF2_FRAME_REG_OUT.

	* tree-ssa-operands.c (finalize_ssa_def_ops): Move the declaration
	of ptr into the ENABLE_CHECKING section.

2006-03-08  Jeff Law  <law@redhat.com>

	* tree-vrp.c (infer_value_range): Only count pointer uses
	and dereferences if -fdelete-null-pointer-checks is enabled.

	* tree-vrp.c (find_assert_locations): Infer value ranges for
	single use pointers, but do not create ASSERT_EXPRs for them.
	When a non-null range is inferred for a pointer, backwards
	propagate that range to other equivalent pointers through the
	use-def chain.

2006-03-08  Paolo Bonzini  <bonzini@gnu.org>

	PR bootstrap/26500
	* Makefile.in (dvi, html, install-info): Invoke the corresponding
	language hook targets.
	* ada/Make-lang.in, cp/Make-lang.in, objc/Make-lang.in,
	objcp/Make-lang.in: Create stub rules for dvi, html, install-info
	if language hook targets were missing.

2006-03-07  Zdenek Dvorak <dvorakz@suse.cz>

	* tree-ssa-opfinalize.h: Removed.
	* Makefile.in (tree-ssa-operands.o): Remove tree-ssa-opfinalize.h
	dependency.
	* tree-ssa-operands.c: Do not include tree-ssa-opfinalize.h.
	(ALLOC_OPTYPE, APPEND_OP_AFTER, MOVE_HEAD_AFTER, MOVE_HEAD_TO_FREELIST,
	INITIALIZE_USE, add_def_op, add_use_op, add_vuse_op, add_maydef_op,
	add_mustdef_op, finalize_ssa_def_ops, finalize_ssa_use_ops,
	finalize_ssa_v_may_def_ops, finalize_ssa_vuse_ops,
	finalize_ssa_v_must_def_ops): New.

2006-03-07  Kenneth Zadeck <zadeck@naturalbridge.com>

	* df-scan.c: (df_bb_refs_record): Fix obvious typo with wrong
	block as parameter.

2006-03-07  Geoffrey Keating  <geoffk@apple.com>

	* varasm.c (assemble_end_function): Say that 'fnname' is unused.

	* config/i386/i386.c (ix86_delegitimize_address): Handle Darwin
	addresses with offsets; reorganize.

	* dwarf2out.c (DWARF2_FRAME_REG_OUT): Move up in file.
	(expand_builtin_dwarf_sp_column): Call DWARF2_FRAME_REG_OUT.
	(expand_builtin_init_dwarf_reg_sizes): Likewise.

2006-03-08  David Billinghurst <David.Billinghurst@riotinto.com>

	PR target/26588
	* config/i386/cygwin.h (GOMP_SELF_SPECS): Define.

2006-03-08  Ben Elliston  <bje@au.ibm.com>

	* config/fp-bit.h (CMPtype): Typedef to a word mode integer.

2006-03-07  Aldy Hernandez  <aldyh@redhat.com>

	PR gomp/26238
	* doc/passes.texi (Tree-SSA passes): Document omp lowering and
	expansion.

2006-03-07  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/26587
	* tree-ssa-structalias.c (handle_ptr_arith): Handle MINUS_EXPR.

2006-03-07  Richard Sandiford  <richard@codesourcery.com>

	* varasm.c (assemble_variable): Fix setting of DECL_IN_TEXT_SECTION.

2006-03-07  Richard Sandiford  <richard@codesourcery.com>

	* hooks.c (hook_bool_mode_rtx_true): New function.
	* hooks.h (hook_bool_mode_rtx_true): Declare.
	* toplev.c (compile_file): Call output_shared_constant_pool.
	* varasm.c (shared_constant_pool): New variable.
	(assemble_start_function, assemble_end_function): Remove arguments
	from call to output_constant_pool.
	(create_constant_pool): New function, split out from...
	(init_varasm_status): ...here.
	(force_const_mem): Choose between the shared and per-function constant
	pools.  Set current_function_uses_const_pool when reusing old entries
	as well as when creating new ones.
	(mark_constant): Ignore data argument.
	(mark_constants): Remove pool argument.
	(mark_constant_pool): Likewise.  Use current_function_uses_const_pool
	to decide whether the function uses a constant pool.
	(output_constant_pool_contents): New function, split out from...
	(output_constant_pool): ...here.
	(output_shared_constant_pool): New function.
	(init_varasm_once): Initialize shared_constant_pool.
	* output.h (output_constant_pool): Delete.
	(output_shared_constant_pool): Declare.
	* config/s390/s390-protos.h (s390_output_constant_pool): Delete.
	* config/i386/i386.c (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Override.

2006-03-06  Nick Clifton  <nickc@redhat.com>

	* config/m32r/m32r.h (OPTIMIZATION_OPTIONS): Remove reference to
	flag_strength_reduce.

2006-03-06  Ben Elliston  <bje@au.ibm.com>

	* config.gcc: Add t-dfprules to $tmake_file for i*86-*-linux* and
	x86_64-*-linux* configurations.

	* config/dfp-bit.h (CMPtype): Typedef to a word mode integer.
	(LIBGCC2_WORDS_BIG_ENDIAN): Define.

2006-03-05  Kazu Hirata  <kazu@codesourcery.com>

	* tree-ssa-threadupdate.c (rediscover_loops_after_threading):
	Remove.
	* basic-block.h: Remove the extern for
	rediscover_loops_after_threading.

	* cfgloop.c (cancel_loop): Make it static.
	* cfgloop.h: Remove the prototype for cancel_loop.

	* flow.c (recompute_reg_usage): Make it static.
	* rtl.h: Remove the prototype for recompute_reg_usage.

	* function.c (use_return_register): Make it static.
	* function.h: Remove the prototype.

2006-03-05  Kazu Hirata  <kazu@codesourcery.com>

	* recog.c (volatile_mem_p, validate_change_maybe_volatile):
	Remove.
	* recog.h: Remove the prototype for
	validate_change_maybe_volatile.

2006-03-05  Kazu Hirata  <kazu@codesourcery.com>

	* rtlanal.c (replace_reg): Remove.
	* rtl.h: Remove the prototype for replace_reg.

2006-03-05  Kazu Hirata  <kazu@codesourcery.com>

	* regclass.c (reg_scan_update): Remove.
	(reg_scan_mark_refs): Remove the last argument.
	* rtl.h: Remove the prototype for reg_scan_update.

2006-03-04  Kazu Hirata  <kazu@codesourcery.com>

	* builtins.c, c-pragma.h, c-typeck.c, cgraph.c, cgraphunit.c,
	combine.c, common.opt, config/dfp-bit.c, config/i386/i386.c,
	config/m68k/m68k.c, config/m68k/m68k.md, config/mt/mt.c,
	config/mt/mt.h, config/s390/s390.md, df-core.c, df-problems.c,
	df-scan.c, df.h, diagnostic.c, expr.c, function.h, gimplify.c,
	loop-invariant.c, omp-low.c, opts.c, passes.c,
	rtl-factoring.c, rtlanal.c, struct-equiv.c, tree-cfgcleanup.c,
	tree-ssa-loop-niter.c, tree-ssa-loop-prefetch.c,
	tree-ssa-structalias.c, tree-ssa-threadedge.c,
	tree-ssa-threadupdate.c, tree-vect-patterns.c,
	tree-vect-transform.c, tree-vectorizer.h, tree-vrp.c,
	unwind-dw2.c: Fix comment typos.  Follow spelling conventions.

2006-03-04  Kazu Hirata  <kazu@codesourcery.com>

	* dwarf2out.c (dwarf2out_add_library_unit_info): Remove.
	* dwarf2out.h: Remove the prototype for
	dwarf2out_add_library_unit_info.

2006-03-04  Kazu Hirata  <kazu@codesourcery.com>

	* tree.c (add_var_to_bind_expr): Remove.
	* tree.h: Remove the prototype for add_var_to_bind_expr.

2006-03-04  Kazu Hirata  <kazu@codesourcery.com>

	* regclass.c (n_non_fixed_regs): Remove.
	(init_reg_sets_1, globalize_reg): Remove all uses of
	n_non_fixed_regs.
	* hard-reg-set.h: Remove the extern for n_non_fixed_regs.

2006-03-04  Kazu Hirata  <kazu@codesourcery.com>

	* rtlanal.c (insns_safe_to_move_p): Remove.
	* rtl.h: Remove the prototype for insns_safe_to_move_p.

2006-03-04  Kazu Hirata  <kazu@codesourcery.com>

	* expmed.c (expand_mult_add): Remove.
	* expr.h: Remove the prototype for expand_mult_add.

2006-03-04  Jakub Jelinek  <jakub@redhat.com>

	* unwind-dw2.h (_Unwind_FrameState): Add REG_SAVED_VAL_OFFSET
	and REG_SAVED_VAL_EXP constants.
	* unwind-dw2.c (struct _Unwind_Context): Add by_value array.
	(_Unwind_GetGR, _Unwind_SetGR, _Unwind_GetGRPtr, _Unwind_SetGRPtr):
	Handle regs stored by value.
	(_Unwind_SetGRValue, _Unwind_GRByValue): New functions.
	(execute_cfa_program): Handle DW_CFA_val_offset,
	DW_CFA_val_offset_sf and DW_CFA_val_expression.
	(uw_update_context_1): Handle REG_SAVED_REG with regs stored by
	value specially.  Handle REG_SAVED_VAL_OFFSET and REG_SAVED_VAL_EXP.
	(uw_install_context_1): Handle target regs stored by value.

2006-03-03  Daniel Berlin  <dberlin@dberlin.org>

	* tree-sra.c (tree_sra): Return todoflags;
	(generate_one_element): Set TODO_update_smt_usage if needed.
	(pass_sra): Remove TODO_update_smt_usage.
	* tree-ssa-forwprop.c (forward_propagate_addr_expr): Add some
	parameter.
	(tree_ssa_forward_propagate_single_use_vars): Return
	TODO_update_smt_usage if we need to update SMT usage.
	(pass_forwprop): Remove TODO_update_smt_usage.

2006-03-03  Diego Novillo  <dnovillo@redhat.com>

	* tree-ssa-operands.c: Tidy whitespace.  Fix spelling.
	(correct_use_link): Remove reference to get_stmt_operands.
	(update_stmt_operands): Likewise.
	(get_modify_expr_operands): New function factored out of
	parse_ssa_operands and get_expr_operands.
	Try to create V_MUST_DEFs for LHS by default.
	(get_expr_operands) <case MODIFY_EXPR>: Call
	get_modify_expr_operands.
	<case ARRAY_RANGE_REF>: Handle together with ARRAY_REF.
	<case BIT_FIELD_REF>: Clear opf_kill_def from FLAGS.
	(parse_ssa_operands) <case MODIFY_EXPR>: Call
	get_modify_expr_operands.

2006-03-03  Kazu Hirata  <kazu@codesourcery.com>

	* tree-dfa.c (referenced_var_lookup_if_exists): Remove.
	* tree-flow.h: Remove the prototype for
	referenced_var_lookup_if_exists.

2006-03-03  Steve Ellcey  <sje@cup.hp.com>

	PR rtl-optimization/26345
	PR target/19061
	* config/ia64/predicates.md (basereg_operand): Don't look in subregs.

2006-03-03  Roger Sayle  <roger@eyesopen.com>

	PR tree-optimization/26524
	* tree-scalar-evolution.c (interpret_rhs_modify_expr): Use
	fold_convert to create a constant of the appropriate type.

2006-03-03  Richard Sandiford  <richard@codesourcery.com>

	* doc/tm.texi: Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
	SYMBOL_REF_IN_BLOCK_P.
	* doc/rtl.texi: Likewise.  Refer to SYMBOL_FLAG_HAS_BLOCK_INFO instead
	of SYMBOL_FLAG_IN_BLOCK.
	* gengtype.c (adjust_field_rtx_def): Use SYMBOL_REF_HAS_BLOCK_INFO_P
	instead of SYMBOL_REF_IN_BLOCK_P.
	* explow.c (use_anchored_address): Likewise.
	* rtl.c (rtx_size): Likewise.
	* varasm.c (create_block_symbol): Set SYMBOL_FLAG_HAS_BLOCK_INFO
	instead of SYMBOL_FLAG_IN_BLOCK.
	(make_decl_rtl): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
	SYMBOL_REF_IN_BLOCK_P.
	(assemble_variable): Likewise.
	(output_constant_def_contents): Likewise.
	(output_constant_pool): Likewise.
	(default_encode_section_info): Preserve SYMBOL_FLAG_HAS_BLOCK_INFO
	instead of SYMBOL_FLAG_IN_BLOCK.
	* rtl.h (block_symbol): Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
	SYMBOL_REF_IN_BLOCK_P.
	(SYMBOL_REF_BLOCK): Likewise.
	(SYMBOL_REF_OFFSET): Likewise.
	(BLOCK_SYMBOL_CHECK): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
	SYMBOL_REF_IN_BLOCK_P.
	(SYMBOL_FLAG_IN_BLOCK): Replace with...
	(SYMBOL_FLAG_HAS_BLOCK_INFO): ...this.
	(SYMBOL_REF_IN_BLOCK_P): Replace with...
	(SYMBOL_REF_HAS_BLOCK_INFO_P): ...this.

2006-03-03  Jakub Jelinek  <jakub@redhat.com>

	* config/arm/unwind-arm.h (_Unwind_GetIPInfo): Fix pasto.

2006-03-02  Roger Sayle  <roger@eyesopen.com>

	* simplify-rtx.c (simplify_unary_operation): When simplifying
	(neg (lt X 0)) into (ashiftrt X C) or (lshiftrt X C), make sure
	that we perform the right shift in the appropriate mode, and
	then extend or truncate the result to requested mode.

2006-03-03  Zdenek Dvorak <dvorakz@suse.cz>

	* gengtype.c (main): Handle double_int type.
	* tree.h (struct tree_int_cst): Make type of int_cst double_int.
	* double-int.c: New file.
	* double-int.h: New file.
	* system.h: Include doubleint.h.
	* Makefile.in (SYSTEM_H): Include double-int.h.
	(double-int.o): Add.

2006-03-03  Joseph S. Myers  <joseph@codesourcery.com>

	PR bootstrap/26478
	* Makefile.in (stmp-int-hdrs): Remove include/unwind.h before
	copying over it.

2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>

	* tree-vrp.c (remove_range_assertions): Do not update statements
	unnecessarily.

2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>

	* cse.c (rest_of_handle_cse): Do not pass CLEANUP_PRE_LOOP to cfg
	cleanup.
	* gcse.c (rest_of_handle_gcse): Ditto.
	* except.c (gate_handle_eh): Ditto.
	* cfgcleanup.c (rest_of_handle_jump2): Ditto.
	* basic-block.h (CLEANUP_PRE_LOOP): Remove.

2006-03-02  Eric Christopher  <echristo@apple.com>

	* config/i386/i386.c (machopic_output_stub): Add indirection to
	jump.

2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>

	* loop.c: Removed.

2006-03-02  David S. Miller  <davem@sunset.davemloft.net>

	Sun Niagara specific optimizations.
	* config.gcc: Recognize niagara as target.
	* config/sparc/sparc.h (SPARC_RELAXED_ORDERING): Mention Niagara.
	(TARGET_CPU_niagara): Define.
	(CPP_CPU64_DEFAULT_SPEC): Define __sparc_v9__ for Niagara.
	(ASM_CPU64_DEFAULT_SPEC): Pass -Av9b for Niagara.
	(CPP_CPU_SPEC): Handle -mcpu=niagara.
	(ASM_CPU_SPEC): Likewise.
	(PROCESSOR_NIAGARA): New enum entry.
	(REGISTER_MOVE_COST): Handle Niagara.
	(BRANCH_COST, PREFETCH_BLOCK, SIMULTANEOUS_PREFETCHES): Likewise.
	* config/sparc/sparc.c (niagara_costs): New processor_costs entry.
	(sparc_override_options): Recognize "niagara", set appropriate
	default MASK_* values for it, and align functions to 32-bytes
	by default just like ULTRASPARC/ULTRASPARC3.
	(sparc_initialize_trampoline): Handle niagara like ultrasparc.
	(sparc64_initialize_trampoline): Likewise.
	(sparc_use_sched_lookahead): Use zero for niagara.
	(sparc_issue_rate): Use one for niagara.
	* config/sparc/niagara.md: New file.
	* config/sparc/sparc.md: Include it.
	* config/sparc/sol2-bi.h (CPP_CPU64_DEFAULT_SPEC,
	ASM_CPU32_DEFAULT_SPEC, ASM_CPU64_DEFAULT_SPEC): Set appropriately
	when default cpu is niagara.
	(CPP_CPU_SPEC): Handle -mcpu=niagara.
	(ASM_CPU_SPEC): Likewise.
	* config/sparc/sol2.h (ASM_CPU_DEFAULT_SPEC): Set appropriately
	when default cpu is niagara.
	(ASM_CPU_SPEC): Handle -mcpu=niagara.
	* config/sparc/linux64.h: Handle a default of TARGET_CPU_niagara
	just like v9/ultrasparc/ultrasparc3.
	* doc/invoke.texi: Add documentation for "niagara" and improve
	existing documentation for ultrasparc variants.

2006-03-02  Diego Novillo  <dnovillo@redhat.com>

	* tree-ssa-operands.c (update_stmt_operands): Update documentation.

2006-03-02  Richard Sandiford  <richard@codesourcery.com>

	* doc/tm.texi (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Document.
	(ASM_OUTPUT_BSS): Describe the two ways of handling global BSS,
	and say that only one is needed.
	* doc/rtl.texi (SYMBOL_REF_BLOCK): Say that the block can be null.
	* target.h (have_switchable_bss_sections): New hook.
	* explow.c (use_anchored_address): Check that the symbol is in a block.
	* varasm.c (tls_comm_section, comm_section, lcomm_section)
	(bss_noswitch_section): New variables.
	(get_unnamed_section): Add SECTION_UNNAMED to the flags.
	(get_noswitch_section): New function.
	(get_block_for_section): Allow SECT to be null.
	(unlikely_text_section_p): Use SECTION_STYLE.
	(bss_initializer_p): New function.
	(get_variable_section): Move earlier in file.  Take a new argument,
	prefer_noswitch_p.  Move bss checks from assemble_variable to here.
	Return one of the new *_sections in such cases.
	(get_block_for_decl): New function, extracting some logic from
	use_blocks_for_decl_p.
	(change_symbol_section): Remove in favor of...
	(change_symbol_block): ...this new function.
	(use_blocks_for_decl_p): Remove checks now performed by
	get_block_for_decl.
	(make_decl_rtl): Use change_symbol_block and get_block_for_decl.
	(ASM_EMIT_LOCAL, ASM_EMIT_BSS, ASM_EMIT_COMMON): Delete in favor of...
	(emit_local, emit_bss, emit_common): ...these new functions.
	Return true if the alignment was honored.
	(emit_tls_common): New function.
	(asm_emit_uninitialised): Delete.
	(assemble_variable_noswitch): New function, split out from...
	(assemble_variable): ...here.  Don't make decisions about common
	variables here.  Globalize all public decls that go into non-common
	sections.  Check whether SYMBOL_REF_BLOCK is null.
	(output_constant_def_contents): Check whether SYMBOL_REF_BLOCK is null.
	(output_constant_pool): Likewise.
	(init_varasm_once): Initialize the new section variables.
	(have_global_bss_p): New function.
	(categorize_decl_for_section): Use bss_initializer_p.
	(switch_to_section): Use SECTION_STYLE.  Abort for SECTION_NOSWITCH.
	(place_block_symbol): Assert that the symbol must be in a block.
	* target-def.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): New macro.
	(TARGET_INITIALIZER): Include it.
	* rtl.h (SYMBOL_REF_BLOCK): Document the null alternative.
	* output.h (SECTION_STYLE_MASK, SECTION_COMMON): New macros.
	(SECTION_MACH_DEP): Bump by two.
	(SECTION_UNNAMED, SECTION_NOSWITCH): New macros.
	(unnamed_section): Mention SECTION_UNNAMED in comment.
	(named_section): Likewise SECTION_NAMED.
	(noswitch_section_callback): New type.
	(noswitch_section): New structure.
	(section): Add a noswitch_section alternative.
	(SECTION_STYLE): New macro.
	(tls_comm_section, comm_section, lcomm_section): Declare.
	(bss_noswitch_section, have_global_bss_p): Declare.
	* config/elfos.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
	* config/iq2000/iq2000.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
	Override.
	* config/v850/v850.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
	* config/stormy16/stormy16.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
	Override.

2006-03-02  Daniel Berlin <dberlin@dberlin.org>

	* tree-vrp.c (execute_vrp): Return value.
	* regrename.c (rest_of_handle_regrename): Ditto.
	* tree-into-ssa.c (rewrite_into_ssa): Ditto.
	* tree-complex.c (tree_lower_complex): Ditto.
	(tree_lower_complex_O0): Ditto.
	* tracer.c (rest_of_handle_tracer): Ditto.
	* postreload-gcse.c (rest_of_handle_gcse2): Ditto.
	* postreload.c (rest_of_handle_postreload): Ditto.
	* tree-tailcall.c (execute_tail_recursion): Ditto.
	(execute_tail_calls): Ditto.
	* tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
	* tree.h (init_function_for_compilation): Ditto.
	* ipa-cp.c (ipcp_driver): Ditto.
	* tree-scalar-evolution.c (scev_const_prop): Ditto.
	* tree-scalar-evolution.h (scev_const_prop): Ditto.
	* final.c (compute_alignments): Ditto.
	(rest_of_handle_final): Ditto.
	(rest_of_handle_shorten_branches): Ditto.
	(rest_of_clean_state): Ditto.
	* omp-low.c (execute_expand_omp): Ditto.
	(execute_lower_omp): Ditto.
	* tree-ssa-dse.c (tree_ssa_dse): Ditto.
	* ipa-reference.c (static_execute): Ditto.
	* tree-ssa-uncprop.c (tree_ssa_uncprop): Ditto.
	* reorg.c (rest_of_handle_delay_slots): Ditto.
	(rest_of_handle_machine_reorg): Ditto.
	* cgraphunit.c (rebuild_cgraph_edges): Ditto.
	* flow.c (recompute_reg_usage): Ditto.
	(rest_of_handle_remove_death_notes): Ditto.
	(rest_of_handle_life): Ditto.
	(rest_of_handle_flow2): Ditto.
	* tree-ssa-copyrename.c (rename_ssa_copies): Ditto.
	* tree-ssa-ccp.c (do_ssa_ccp): Ditto.
	(do_ssa_store_ccp): Ditto.
	(execute_fold_all_builtins): Ditto.
	* mode-switching.c (rest_of_handle_mode_switching): Ditto.
	* modulo-sched.c (rest_of_handle_sms): Ditto.
	* ipa-pure-const.c (static_execute): Ditto.
	* cse.c (rest_of_handle_cse): Ditto.
	(rest_of_handle_cse2): Ditto.
	* web.c (rest_of_handle_web): Ditto.
	* tree-stdarg.c (execute_optimize_stdarg): Ditto.
	* tree-ssa-math-opts.c (execute_cse_reciprocals): Ditto.
	* tree-ssa-dom.c (tree_ssa_dominator_optimize): Ditto.
	* tree-nrv.c (tree_nrv): Ditto.
	(execute_return_slot_opt): Ditto.
	* tree-ssa-alias.c (compute_may_aliases): Ditto.
	(create_structure_vars): Ditto.
	* loop-init.c (rtl_loop_init): Ditto.
	(rtl_loop_done): Ditto.
	(rtl_move_loop_invariants): Ditto.
	(rtl_unswitch): Ditto.
	(rtl_unroll_and_peel_loops): Ditto.
	(rtl_doloop): Ditto.
	* gimple-low.c (lower_function_body): Ditto.
	(mark_used_blocks): Ditto.
	* tree-ssa-sink.c (execute_sink_code): Ditto.
	* ipa-inline.c (cgraph_decide_inlining): Ditto.
	(cgraph_early_inlining): Ditto.
	* global.c (rest_of_handle_global_alloc): Ditto.
	* jump.c (cleanup_barriers): Ditto.
	(purge_line_number_notes): Ditto.
	* ifcvt.c (rest_of_handle_if_conversion): Ditto.
	(rest_of_handle_if_after_reload): Ditto.
	* tree-ssa-loop.c (tree_ssa_loop_init): Ditto.
	(tree_ssa_loop_im): Ditto.
	(tree_ssa_loop_unswitch): Ditto.
	(tree_vectorize): Ditto.
	(tree_linear_transform): Ditto.
	(tree_ssa_loop_ivcanon): Ditto.
	(tree_ssa_empty_loop): Ditto.
	(tree_ssa_loop_bounds): Ditto.
	(tree_complete_unroll): Ditto.
	(tree_ssa_loop_prefetch): Ditto.
	(tree_ssa_loop_ivopts): Ditto.
	(tree_ssa_loop_done): Ditto.
	* predict.c (tree_estimate_probability): Ditto.
	* recog.c (split_all_insns_noflow): Ditto.
	(rest_of_handle_peephole2): Ditto.
	(rest_of_handle_split_all_insns): Ditto.
	* tree-eh.c (lower_eh_constructs): Ditto.
	* regmove.c (rest_of_handle_regmove): Ditto.
	(rest_of_handle_stack_adjustments): Ditto.
	* local-alloc.c (rest_of_handle_local_alloc): Ditto.
	* function.c (instantiate_virtual_regs): Ditto.
	(init_function_for_compilation): Ditto.
	(rest_of_handle_check_leaf_regs): Ditto.
	* gcse.c (rest_of_handle_jump_bypass): Ditto.
	(rest_of_handle_gcse): Ditto.
	* ipa-type-escape.c (type_escape_execute): Ditto.
	* alias.c (rest_of_handle_cfg): Ditto.
	* tree-if-conv.c (main_tree_if_conversion): Ditto.
	* profile.c (rest_of_handle_branch_prob): Ditto.
	* tree-ssa-phiopt.c (tree_ssa_phiopt): Ditto.
	* rtl-factoring.c (rest_of_rtl_seqabstr): Ditto.
	* bt-load.c (rest_of_handle_branch_target_load_optimize): Ditto
	* tree-dfa.c (find_referenced_vars): Ditto.
	* except.c (set_nothrow_function_flags): Ditto.
	(convert_to_eh_region_ranges): Ditto.
	(rest_of_handle_eh): Ditto.
	* emit-rtl.c (unshare_all_rtl): Ditto.
	(remove_unnecessary_notes): Ditto.
	* except.h (set_nothrow_function_flags): Ditto.
	(convert_to_eh_region_ranges): Ditto.
	* cfgexpand.c (tree_expand_cfg): Ditto.
	* tree-cfgcleanup.c (merge_phi_nodes): Ditto.
	* tree-ssa-pre.c (do_pre): Ditto.
	(execute_fre): Ditto.
	* cfgcleanup.c (rest_of_handle_jump): Ditto.
	(rest_of_handle_jump2): Ditto.
	* tree-sra.c (tree_sra): Ditto.
	* tree-mudflap.c (execute_mudflap_function_ops): Ditto.
	(execute_mudflap_function_decls): Ditto.
	* tree-ssa-copy.c (do_copy_prop): Ditto.
	(do_store_copy_prop): Ditto.
	* ipa-prop.h (ipcp_driver): Ditto.
	* cfglayout.c (insn_locators_initialize): Ditto.
	* tree-ssa-forwprop.c
	(tree_ssa_forward_propagate_single_use_vars): Ditto.
	* cfglayout.h (insn_locators_initialize): Ditto.
	* tree-ssa-dce.c (tree_ssa_dce): Ditto.
	* tree-ssa.c (execute_early_warn_uninitialized): Ditto.
	(execute_late_warn_uninitialized): Ditto.
	* rtl.h (cleanup_barriers): Ditto.
	(split_all_insns_noflow): Ditto.
	(purge_line_number_notes): Ditto.
	(unshare_all_rtl): Ditto.
	(remove_unnecessary_notes): Ditto.
	(recompute_reg_usage): Ditto.
	(variable_tracking_main): Ditto.
	* integrate.c (emit_initial_value_sets): Ditto.
	* integrate.h (emit_initial_value_sets): Ditto.
	* tree-optimize.c (execute_free_datastructures): Ditto
	(execute_free_cfg_annotations): Ditto.
	(execute_fixup_cfg): Ditto.
	(execute_cleanup_cfg_pre_ipa): Ditto.
	(execute_cleanup_cfg_post_optimizing): Ditto.
	(execute_init_datastructures): Ditto.
	* tree-object-size.c (compute_object_sizes): Ditto.
	* combine.c (rest_of_handle_combine): Ditto.
	* tree-outof-ssa.c (rewrite_out_of_ssa): Ditto.
	* bb-reorder.c (duplicate_computed_gotos): Ditto.
	(rest_of_handle_reorder_blocks): Ditto.
	(rest_of_handle_partition_blocks): Ditto.
	* var-tracking.c (variable_tracking_main): Ditto.
	* tree-profile.c (tree_profiling): Ditto.
	* tree-vect-generic.c (expand_vector_operations): Ditto.
	* reg-stack.c (rest_of_handle_stack_regs): Ditto.
	* sched-rgn.c (rest_of_handle_sched): Ditto.
	(rest_of_handle_sched2): Ditto.
	* basic-block.h (free_bb_insn): Ditto.
	* tree-ssa-structalias.c (ipa_pta_execute): Ditto.
	* tree-cfg.c (execute_build_cfg): Ditto.
	(remove_useless_stmts): Ditto.
	(split_critical_edges): Ditto.
	(execute_warn_function_return): Ditto.
	(execute_warn_function_noreturn): Ditto.
	* tree-ssa-reassoc.c (execute_reassoc): Ditto.
	* cfgrtl.c (free_bb_for_insn): Ditto.
	* passes.c (execute_one_pass): Run additional
	todos returned by execute function.
	* tree-pass.h (struct tree_opt_pass): Make execute
	return a value.

2006-03-02  Richard Guenther  <rguenther@suse.de>

	* tree-ssa-alias.c (find_used_portions): Consider taking
	the address as making the variable not write-only.

2006-03-02  Nick Clifton  <nickc@redhat.com>

	* config.gcc (default_use_cxa_atexit): Extend the description of
	this configure variable.  Set its default value to "yes" for
	Linux, NetBSD and ELF targets on the assumption that they will
	use C libraries with the __cxa_atexit function.

2006-03-02  Ben Elliston  <bje@au.ibm.com>

	* config/rs6000/linux-unwind.h (frob_update_context): Mark `fs'
	parameter as unused to suppress a build warning.

2006-03-02  Ben Elliston  <bje@au.ibm.com>

	* mklibgcc.in: Depend on config/dfp-bit.h in rules that compile
	config/dfp-bit.c.

2006-03-01  Roger Sayle  <roger@eyesopen.com>

	PR other/26489
	* gthr-posix.h (__gthrw2): Define to take three parameters, the
	declared name, the weak reference name, and the typeof name.
	(__gthrw): Avoid expanding the declared name suffix.
	(__gthrw3): New Tru64 specific macro to simplify the OSF/1 decls.

2006-03-01  Jakub Jelinek  <jakub@redhat.com>

	* dwarf2.h (DW_TAG_condition, DW_TAG_shared_type): New constants
	from DWARF 3.
	(DW_AT_description, DW_AT_binary_scale, DW_AT_decimal_scale,
	DW_AT_small, DW_AT_decimal_sign, DW_AT_digit_count,
	DW_AT_picture_string, DW_AT_mutable, DW_AT_threads_scaled,
	DW_AT_explicit, DW_AT_object_pointer, DW_AT_endianity,
	DW_AT_elemental, DW_AT_pure, DW_AT_recursive): New.
	(DW_OP_form_tls_address, DW_OP_call_frame_cfa, DW_OP_bit_piece): New.
	(DW_ATE_packed_decimal, DW_ATE_numeric_string, DW_ATE_edited,
	DW_ATE_signed_fixed, DW_ATE_unsigned_fixed): New.
	(DW_DS_unsigned, DW_DS_leading_overpunch, DW_DS_trailing_overpunch,
	DW_DS_leading_separate, DW_DS_trailing_separate): New.
	(DW_END_default, DW_END_big, DW_END_little): New.
	(DW_END_lo_user, DW_END_hi_user): Define.
	(DW_LNE_lo_user, DW_LNE_hi_user): Define.
	(DW_CFA_val_offset, DW_CFA_val_offset_sf, DW_CFA_val_expression): New.
	(DW_LANG_PLI, DW_LANG_ObjC, DW_LANG_ObjC_plus_plus, DW_LANG_UPC,
	DW_LANG_D): New.

2006-03-01  Diego Novillo  <dnovillo@redhat.com>

	* tree.def (SYMBOL_MEMORY_TAG): Rename from TYPE_MEMORY_TAG.
	Update all users.
	* tree-pass.h (PROP_smt_usage): Rename from PROP_tmt_usage.
	Update all users.
	(TODO_update_smt_usage): Rename from TODO_update_tmt_usage.
	Update all users.
	* tree.h (SMT_USED_ALONE): Rename from TMT_USED_ALONE.
	Update all users.
	* tree-flow.h (struct var_ann_d): Rename field 'type_mem_tag'
	to 'symbol_mem_tag'.
	Update all users.
	* doc/tree-ssa.texi: Update documentation to reflect TMT->SMT
	rename.

2006-03-01  Roger Sayle  <roger@eyesopen.com>

	* builtins.c (fold_builtin_copysign): Delete unreachable code.

2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>

	PR target/25761
	* config/darwin.h (MACHOPIC_JUST_INDIRECT): Check just
	MACHO_DYNAMIC_NO_PIC_P.
	(MACHOPIC_PURE): Check flag_pic and not MACHO_DYNAMIC_NO_PIC_P.

2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>

	PR target/26389
	* config/darwin-protos.h (darwin_asm_output_anchor):
	Declare.
	* config/darwin-sections.def (cstring_section):
	Add SECTION_MERGE to the flags.
	(literal4_section): Likewise.
	(literal8_section): Likewise.
	(objc_selector_refs_section): Likewise.
	(objc_cls_refs_section): Likewise.
	* config/darwin.c (darwin_asm_output_anchor): New
	function.
	* config/darwin.h (TARGET_ASM_OUTPUT_ANCHOR): Define.

2006-03-01  Daniel Berlin  <dberlin@dberlin.org>

	Fix PR tree-optimization/26443
	* tree-vrp.c (pass_vrp): Add TODO_update_tmt_usage
	to todo and PROP_tmt_usage to properties_destroyed.
	* tree-ssa-ccp.c (pass_ccp): Ditto.
	(pass_store_ccp): Ditto.
	* tree-ssa-dom.c (pass_dominator): Ditto.

2006-03-01  Diego Novillo  <dnovillo@redhat.com>

	* tree-ssa-operands.c: Cleanup whitespace.
	(get_asm_expr_operands): Move before first invocation.
	(get_indirect_ref_operands): Likewise.
	(get_tmr_operands): Likewise.
	(get_call_expr_operands): Likewise.
	(append_def): Likewise.
	(append_use): Likewise.
	(append_v_may_def): Likewise.
	(append_v_must_def): Likewise.
	(add_call_clobber_ops): Likewise.
	(add_call_read_ops): Likewise.
	(add_stmt_operand): Likewise.
	(add_virtual_operand): Likewise.
	(build_ssa_operands): Likewise.

2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>

	PR middle-end/26022
	Revert:
	PR middle-end/24437
	* tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
	with a call expr to ...
	* fold-const.c (fold_ternary) <case CALL_EXPR>: Here.

2006-03-01  Diego Novillo  <dnovillo@redhat.com>

	* tree-vrp.c (extract_range_from_assert): Remove special
	handling for types with super-types.

2006-03-01  Ben Elliston  <bje@au.ibm.com>

	* config.gcc: Add t-dfprules to $tmake_file for powerpc-*-linux*
	and powerpc64-*-linux* configurations.
	* config/t-dfprules: New file.

	* mklibgcc.in: Add logic to handle $DFP_ENABLE and $DFP_CFLAGS.
	Compile dfp-bit.c from the source directory using -DWIDTH and
	$DFP_CFLAGS to control the compilation of that file, rather than
	generating width-specific versions in the build directory.
	* Makefile.in (libgcc.mk): Pass down DFP_ENABLE and DFP_CFLAGS.
	(LIBGCC_DEPS): Replace $(D32PBIT) et al with config/dfp-bit.[hc].

2006-02-28  Zack Weinberg  <zackw@panix.com>

	* doc/md.texi: Avoid use of @headitem so that makeinfo <4.7
	continues to work.

2006-02-28  Eric Christopher  <echristo@apple.com>

	* config/rs6000/darwin.h (ENABLE_STACK_EXECUTE): Define.
	Set up IN_LIBGCC definition of TARGET_64BIT.
	* config/i386/darwin.h (ENABLE_STACK_EXECUTE): Define.

2006-02-28  Roger Sayle  <roger@eyesopen.com>

	PR middle-end/14752
	* c-common.c (c_common_truthvalue_conversion) <MINUS_EXPR,
	BIT_XOR_EXPR, BIT_AND_EXPR>: Delete.  Let fold optimize these
	cases via the construction of "expr != 0".

2006-02-28  Steven Bosscher  <stevenb.gcc@gmail.com>

	* alias.c (alias_invariant, alias_invariant_size): Remove.
	(record_base_value): Remove.
	(memrefs_conflict_p): Don't look at alias_invariant.
	(end_alias_analysis): Don't free it.
	* alias.h (record_base_value): Remove prototype.

2006-02-28  Paolo Bonzini  <bonzini@gnu.org>
	    Adam Nemet  <anemet@caviumnetworks.com>

	* rtl.h (truncated_to_mode): Declare it.
	(struct rtl_hooks): Add reg_truncated_to_mode hook.
	* rtlhooks-def.h (RTL_HOOKS_REG_TRUNCATED_TO_MODE): New macro.
	(RTL_HOOKS_INITIALIZER): Include it.
	* rtlhooks.c (reg_truncated_to_mode_general): New function.
	* combine.c (RTL_HOOKS_REG_TRUNCATED_TO_MODE): Override to
	reg_truncated_to_mode.
	* rtlanal.c (truncated_to_mode): Define it.
	* simplify-rtx.c (simplify_unary_operation_1): Use it.

2006-02-28  Jeff Law  <law@redhat.com>

	* tree-chrec.c (chrec_convert_aggressive): Do not eliminate
	conversions where TYPE_MIN_VALUE/TYPE_MAX_VALUE do not cover
	the range allowed by TYPE_PRECISION.

	* tree.h (strct phi_arg_d): Remove unused NONZERO field.

2006-02-28  Dorit Nuzman  <dorit@il.ibm.com>

	PR tree-optimization/26419
	* doc/invoke.texi (ftree-vectorizer-verbose): Add information on
	values of n.

2006-02-27  Zack Weinberg  <zackw@panix.com>

	* doc/md.texi: Fix typo in previous change.

2006-02-27  Kenneth Zadeck <zadeck@naturalbridge.com>

	* df.c: Remove.

2006-02-27  Zack Weinberg  <zackw@panix.com>

	* rtl.def (define_constraint, define_register_constraint)
	(define_memory_constraint, define_address_constraint): New MD forms.
	* gensupport.c (process_rtx): Put define_constraint etc on the
	predicate queue.
	* genpreds.c (process_define_predicate): Adjust comment.  Validate
	the name, and call validate_exp to validate the expression.
	(mark_mode_tests, write_extract_subexp): Can assume correct input.
	(write_predicate_expr): Likewise.  NAME argument no longer necessary;
	all callers changed.
	(validate_exp, needs_variable, struct constraint_data)
	(constraints_by_letter_table, first_constraint, last_constraint_ptr)
	(FOR_ALL_CONSTRAINTS, generic_constraint_letters, const_int_constraints)
	(const_dbl_constraints, constraint_max_namelen)
	(have_register_constraints, have_memory_constraints)
	(have_address_constraints, have_address_constraints)
	(have_extra_constraints, have_const_int_constraints)
	(have_const_dbl_constraints, mangle, add_constraint)
	(process_define_constraint, process_define_register_constraint)
	(write_enum_constraint_num, write_lookup_constraint)
	(write_insn_constraint_len, write_regclass_for_constraint)
	(write_constraint_satisfied_p, write_insn_const_int_ok_for_constraint)
	(write_insn_extra_memory_constraint)
	(write_insn_extra_address_constraint)
	(write_satisfies_constraint_fns): New.
	(write_tm_preds_h): If we have new-style constraint definitions,
	prototype the functions generated from them, and define the
	old constraint interface (still used by generic code) in terms of
	those functions.
	(write_insn_preds_c): If we have new-style constraint definitions,
	generate all relevant functions from those definitions.
	(main): Handle define_constraint etc.
	* genoutput.c (struct constraint_data, indep_constraints)
	(mdep_constraint_letters, constraints_by_letter_table, note_constraint)
	(mdep_constraint_len): New data structures and functions, defined
	#ifdef USE_MD_CONSTRAINTS.
	(check_constraint_len): Don't define #ifdef USE_MD_CONSTRAINTS.
	(validate_insn_alternatives): If USE_MD_CONSTRAINTS is defined,
	use new logic to validate operand constraints against constraint
	definitions.
	(main): Process define_constraint etc. if USE_MD_CONSTRAINTS is
	defined.
	* defaults.h: If none of the old-style constraint macros are
	defined, define USE_MD_CONSTRAINTS; do not provide defaults for any
	old-style macros; and poison REG_CLASS_FROM_LETTER,
	CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P, and
	EXTRA_CONSTRAINT.
	* recog.c (reg_fits_class_p): If cl is NO_REGS, return 0 immediately.
	* doc/md.texi: Document new constraint-definition mechanism and the
	C interface it provides.  Remove references to old mechanism
	elsewhere in the document.
	(Machine Constraints): Use pathnames relative to gcc directory,
	i.e. config/ARCH/FILE.  Change i386 section to refer to
	config/i386/predicates.md; update that section to match docstrings.
	* doc/tm.texi: Move all documentation of the old constraint-
	definition macros to their own section, clearly mark as obsolete.

	* config/i386/predicates.md (R, q, Q, l, a, b, c, d, S, D, A, f, t)
	(u, y, x, Y, I, J, K, L, M, N, O, G, C, e, Z): New constraint
	definitions.
	* config/i386/i386.h (REG_CLASS_FROM_LETTER, CONST_OK_FOR_LETTER_P)
	(CONST_DOUBLE_OK_FOR_LETTER_P, EXTRA_CONSTRAINT): Delete.
	* config/i386/i386.md (*movdf_nointeger): Remove stray 'H' from
	constraint strings.
	(splits and peepholes): Use satisfies_constraint_*.
	* config/i386/i386.c (memory_address_length)
	(ix86_attr_length_immediate_default): Use satisfies_constraint_*.

2006-02-27  Daniel Berlin  <dberlin@dberlin.org>

	* lambda-code.c (can_convert_to_perfect_nest): Allow any type of
	scalar operation to be put back into the loop.

2006-02-27  Jakub Jelinek  <jakub@redhat.com>

	PR other/26208
	* unwind-dw2.c (struct _Unwind_Context): Add signal_frame field.
	(extract_cie_info): Handle S flag in augmentation string.
	(execute_cfa_program): If context->signal_frame, execute also
	fs->pc == context->ra instructions.
	(uw_frame_state_for): If context->signal_frame, don't subtract one
	from context->ra to find FDE.
	(uw_update_context_1): Set context->signal_frame to
	fs->signal_frame.
	(_Unwind_GetIPInfo): New function.
	* unwind-dw2.h (_Unwind_FrameState): Add signal_frame field.
	* unwind-c.c (PERSONALITY_FUNCTION): Use _Unwind_GetIPInfo instead
	of _Unwind_GetIP.
	* unwind-sjlj.c (_Unwind_GetIPInfo): New function.
	* unwind-generic.h (_Unwind_GetIPInfo): New prototype.
	* unwind-compat.c (_Unwind_GetIPInfo): New function.
	* libgcc-std.ver (_Unwind_GetIPInfo): Export @@GCC_4.2.0.
	* config/ia64/unwind-ia64.c (_Unwind_GetIPInfo): New function.
	* config/arm/unwind-arm.h (_Unwind_GetIPInfo): Define.
	* config/i386/linux-unwind.h (x86_fallback_frame_state,
	x86_64_fallback_frame_state): Set fs->signal_frame.
	* config/rs6000/linux-unwind.h (ppc_fallback_frame_state): Likewise.
	(MD_FROB_UPDATE_CONTEXT): Define unconditionally.
	(frob_update_context): Likewise.  Workaround missing S flag in
	Linux 2.6.12 - 2.6.16 kernel vDSOs.
	* config/s390/linux-unwind.h (s390_fallback_frame_state): Likewise.
	Remove the psw_addr + 1 hack.

2006-02-27  Daniel Berlin  <dberlin@dberlin.org>

	* tree-ssa-structalias.c (get_constraint_for): Move code to deal
	with aggregates here.
	(find_func_aliases): Remove code for &<aggregate> from here.

2006-02-26  Roger Sayle  <roger@eyesopen.com>

	* fold-const.c (fold_binary) <EQ_EXPR>: Fold (~X & C) eq/ne 0 as
	(X & C) ne/eq 0, where C is a single bit, i.e. a power of two.
	Fold both "((X & C) ^ C) eq/ne 0" and "((X ^ C) & C) eq/ne 0"
	as (X & C) ne/eq 0.

2006-02-26  Roger Sayle  <roger@eyesopen.com>

	PR middle-end/19983
	* real.c (real_nan): Allow both 0x and 0X as hexadecimal prefixes.

2006-02-26  Zdenek Dvorak <dvorakz@suse.cz>

	* opts.c (decode_options): Do not handle flag_strength_reduce.
	(common_handle_option): Handle OPT_floop_optimize, OPT_frerun_loop_opt
	and OPT_fstrength_reduce.
	* tree-ssa-loop.c (tree_ssa_loop_prefetch): Only test
	flag_prefetch_loop_arrays for being nonzero.
	* common.opt (floop-optimize, frerun-loop-opt): Resurrected as
	no-ops.
	(fprefetch-loop-arrays-rtl): Removed.
	(flag_prefetch_loop_arrays): Do not specify the value.

	* doc/passes.texi: Update documentation of loop optimizer
	passes.
	* doc/invoke.texi (-fstrength-reduce, -fprefetch-loop-arrays-rtl,
	-frerun-loop-opt): Remove.

2006-02-26  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/26421
	* tree-ssa-alias.c (find_used_portions): Don't treat parameters
	in function calls that are ADDR_EXPRs as using the whole structure.

2006-02-26  Steven Bosscher  <stevenb.gcc@gmail.com>

	* common.opt (-floop-optimize, -frerun-loop-opt): Remove.
	* tree-pass.h (pass_loop_optimize): Remove.
	* passes.c (pass_loop_optimize): Never run it.
	* toplev.c (backend_init): Don't call init_loop.
	* opts.c (flag_loop_optimize_set): Remove.
	(decode_options): Never set flag_loop_optimize or flag_rerun_loop_opt.
	(common_handle_option) <OPT_floop_optimize>: Remove.  Don't disable
	the old RTL loop optimizer when profiling enabled.
	* predict.c (tree_estimate_probability): Always strip builtin_expect.
	* cfgcleanup.c (try_forward_edges): Don't avoid killing loop
	pre-headers for the sake of the old RTL loop optimizer.
	* Makefile.in: Remove all references to loop.o.

	* doc/invoke.texi: Remove all references to -floop-optimize
	and -frerun-loop-opt.

2006-02-26  Zack Weinberg  <zackw@panix.com>

	* doc/md.texi (Machine Constraints): Refer to all files with paths
	relative to gcc directory (i.e. config/CPU/file).  Add missing
	@table @code ... @end table to M32C subsection.

2006-02-26  Roger Sayle  <roger@eyesopen.com>

	* fold-const.c (fold_binary) <BIT_XOR_EXPR>: Fold (X & 1) ^ 1 as
	(X & 1) == 0.
	<BIT_AND_EXPR>: Fold (X ^ 1) & 1 and ~X & 1 as (X & 1) == 0.

2006-02-26  Roger Sayle  <roger@eyesopen.com>
	    James A. Morrison  <phython@gcc.gnu.org>

	PR middle-end/21137
	* fold-const.c (fold_binary) <EQ_EXPR>: Fold ((X>>C1)&C2) eq/ne 0,
	when C2 is a power of two, as either (X&(C2<<C1)) eq/ne 0 if the
	new constant C2<<C1, or as (X<0) or (X,false) depending upon the
	signedness of the shift operation.

2006-02-26  Dorit Nuzman  <dorit@il.ibm.com>

	PR tree-optimization/26359
	* tree-ssa-alias.c (new_type_alias): Set fields for new tag.

2006-02-25  Roger Sayle  <roger@eyesopen.com>

	* simplify-rtx.c (simplify_relational_operation_1): Simplify
	(X^Y) == 0 as X == Y and (X^Y) != 0 as X != Y.  Simplify (X^Y) == Y
	as X == 0, and some symmetry related transformations.
	Simplify (X^C1) == C2 as X == (C1^C2).  Split long comment line.

2006-02-25  Roger Sayle  <roger@eyesopen.com>

	PR middle-end/23673
	* fold-const.c (fold_binary) <EQ_EXPR>: Fold (X^Y) == 0 as X == Y
	and (X^Y) != 0 as X != Y.  Fold (X^Y) == Y as X == 0, and some
	symmetry related transformations.  Fold (X^C1) == C2 as
	X == (C1^C2).

2006-02-25  Juergen Weigert  <jw@suse.de>
	Richard Guenther  <rguenther@suse.de>

	* scan-decls.c (scan_decls): Don't fetch new statement after CPP_EOF.

2006-02-24  Adam Nemet  <anemet@caviumnetworks.com>

	* combine.c (gen_lowpart_or_truncate): Call
	simplify_gen_unary(TRUNCATE, ...) instead of gen_rtx_TRUNCATE.

2006-02-24  Diego Novillo  <dnovillo@redhat.com>

	* doc/invoke.texi: Move -fopenmp description to "Options for
	Code Generation".
	Remove reference to -lgomp.

2006-02-24  David Edelsohn  <edelsohn@gnu.org>

	* doc/install.texi: Require GNU tar version 1.14.

2006-02-24  Geoffrey Keating  <geoffk@apple.com>

	* doc/tm.texi (Run-time Target): Document C_COMMON_OVERRIDE_OPTIONS.
	* doc/invoke.texi (C++ Dialect Options): Document
	-fno-use-cxa-get-exception-ptr.
	* configure.ac: Define DEFAULT_USE_CXA_ATEXIT to 2 not 1.
	* configure: Regenerate.
	* c.opt (fuse-cxa-get-exception-ptr): New.
	* c-opts.c (c_common_handle_option): Handle
	OPT_fuse_cxa_get_exception_ptr.
	* c-common.c (flag_use_cxa_atexit): Update documentation.
	(flag_use_cxa_get_exception_ptr): New.
	* c-common.h (flag_use_cxa_get_exception_ptr): New.
	* config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): Improve
	documentation.
	(C_COMMON_OVERRIDE_OPTIONS): New.

2006-02-24  Roger Sayle  <roger@eyesopen.com>

	PR middle-end/24952
	* combine.c (try_combine): Explicitly check whether GET_CODE is
	a SET or a CLOBBER, instead on checking that it isn't a USE.

2006-02-24  Roger Sayle  <roger@eyesopen.com>

	* fold-const.c (fold_comparison): New subroutine of fold_binary
	containing transformations common to both the equality and
	ordering relational operators, factored out of fold_binary.
	(fold_binary): Separate out the equality operators (EQ_EXPR
	and NE_EXPR) from the ordering operators (LT_EXPR, GT_EXPR,
	LE_EXPR and GE_EXPR), calling fold_comparison to perform the
	transformations common to both.
	(fold_div_compare): Fix latent bugs in the previously unreachable
	LT_EXPR and GE_EXPR cases.

2006-02-24  David Edelsohn  <edelsohn@gnu.org>

	* config/rs6000/rs6000.c (rs6000_init_builtins): Change
	decl libname for clog to __clog on AIX.

	* config/rs6000/xcoff.h (MAX_OFILE_ALIGNMENT): Define.

2006-02-24  Alan Modra  <amodra@bigpond.net.au>

	PR target/26453
	* config/rs6000/rs6000.c (rs6000_output_function_epilogue): Don't
	output traceback table for thunks.  Localise rs6000_stack_info call.

2006-02-23  Roger Sayle  <roger@eyesopen.com>
	    Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

	* gthr-posix.h (__gthrw): Fix typo in comment.

2006-02-23  Geoffrey Keating  <geoffk@apple.com>

	* doc/cpp.texi (Character sets): Document that we do support
	input files to be in any character set.

2006-02-23  Jeff Law  <law@redhat.com>

	* tree.h (PHI_ARG_NONZERO): Remove.
	* tree-phinodes.c (add_phi_arg): No longer initialize PHI_ARG_NONZERO.
	(remove_phi_arg_num): No longer copy PHI_ARG_NONZERO from the old
	node to the new node.

	PR tree-optimization/26425
	* tree-vrp.c (vrp_visit_assignment): If the LHS's type has a NULL
	min/max, then assume its varying.

2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>

	PR rtl-optimization/26316
	* rtlanal.c (enum may_trap_p_flags): New.
	(may_trap_p_1): Take flags instead of unaligned_mems argument.  Ignore
	MEM_NOTRAP_P if flags & MTP_AFTER_MOVE.
	(may_trap_p, may_trap_or_fault_p): Pass flags to may_trap_p_1.
	(may_trap_after_code_motion_p): New function.
	* loop-invariant.c (find_identical_invariants): Fix dump formating.
	(find_invariant_insn): Use may_trap_after_code_motion_p.
	* rtl.h (may_trap_after_code_motion_p): Declare.

2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>

	* emit-rtl.c (immed_double_const): Cleanup.

2006-02-23  Daniel Berlin  <dberlin@dberlin.org>

	Fix PR tree-optimization/26376
	* tree-ssa-structalias.c (find_func_aliases): Use get_id_for_tree,
	remove assert.

2006-02-23  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/26412
	* gimplify.c (omp_add_variable): Guard variable size decl test with
	DECL_SIZE (decl) check.

2006-02-23  Richard Guenther  <rguenther@suse.de>

	PR middle-end/26439
	* tree-ssa-structalias.c (find_func_aliases): Handle complex types
	like aggregate types.

2006-02-23  Jakub Jelinek  <jakub@redhat.com>

	* configure.ac: Add --with{,out}-long-double-128 configure option.
	(TARGET_DEFAULT_LONG_DOUBLE_128): New test.
	* configure: Rebuilt.
	* config.in: Rebuilt.
	* doc/install.texi (Options specification): Document
	--with-long-double-128.

	* config/rs6000/linux.h [TARGET_DEFAULT_LONG_DOUBLE_128]
	(RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
	* config/rs6000/linux64.h [TARGET_DEFAULT_LONG_DOUBLE_128]
	(RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.

2006-02-23  Aldy Hernandez  <aldyh@redhat.com>

	* config/s390/s390.c (override_options): Handle
	TARGET_DEFAULT_LONG_DOUBLE_128.

	* config/alpha/alpha.c (override_options): Handle
	TARGET_DEFAULT_LONG_DOUBLE_128.

	* config/sparc/sparc.c (sparc_override_options): Handle
	TARGET_DEFAULT_LONG_DOUBLE_128.

2006-02-22  Daniel Jacobowitz  <dan@codesourcery.com>

	* Makefile.in (stmp-fixinc): Use real-$(INSTALL_HEADERS_DIR).
	(real-install-headers-tar, real-install-headers-cpio)
	(real-install-headers-cp): New targets.

2006-02-22  Richard Sandiford  <richard@codesourcery.com>

	* tree.h (variable_section): Delete.
	* varasm.c (variable_section): Delete.

2006-02-22  Paolo Bonzini  <bonzini@gnu.org>

	* install.texi: Add notes on install.texi2html.
	(Building in parallel): Do not use footnotes.

2006-02-21  Aldy Hernandez  <aldyh@redhat.com>

	PR libgomp/26234
	* doc/install.texi (Configuration): Document --disable-libgomp.

2006-02-21  Geoffrey Keating  <geoffk@apple.com>

	* config/i386/darwin.h (DWARF2_FRAME_REG_OUT): New.

2006-02-21  Alexandre Oliva  <aoliva@redhat.com>

	* config/i386/sse.md (vec_extractv2df_1_sse): New.
	(vec_extractv2df_0_sse): New.

2006-02-21  Alexandre Oliva  <aoliva@redhat.com>

	* defaults.h (CFA_FRAME_BASE_OFFSET): Define.
	* config/ia64/ia64.h (CFA_FRAME_BASE_OFFSET): Override.
	* doc/tm.texi (CFA_FRAME_BASE_OFFSET): Document.
	* dwarf2out.c (build_cfa_loc): New offset parameter.  Add it
	to the result of the expression.
	(def_cfa_1): Adjust.
	(frame_pointer_cfa_offset): Rename to...
	(frame_pointer_fb_offset): ... this.  Adjust all uses.
	(convert_cfa_to_loc_list): Rename to...
	(convert_cfa_to_fb_loc_list): ... this.  New offset parameter.
	Pass it on to build_cfa_loc.
	(compute_frame_pointer_to_cfa_displacement): Rename to...
	(compute_frame_pointer_to_fb_displacement): ... this.  New
	offset parameter.  Use it in computation.
	(gen_subprogram_die): Compute cfa_fb_offset with the new
	macro, and use it to compute the fb loc list and the
	displacement.

2006-02-21  Bernd Schmidt  <bernd.schmidt@analog.com>

	* config/bfin/predicates.md (cc_operand): Delete predicate.  All uses
	replaced with register_operand.
	* config/bfin/bfin.c (bfin_register_move_cost): Moving CC to any
	non-DREG is expensive.
	* config/bfin/bfin.h (FIXED_REGISTERS): CC isn't fixed.
	* config/bfin/bfin.md (movbi): Fix constraints and template for moves
	involving memory.

2006-02-21  Joseph S. Myers  <joseph@codesourcery.com>

	* doc/install.texi2html: Use set -e.

2006-02-21  Richard Sandiford  <richard@codesourcery.com>

	* doc/tm.texi (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
	(ASM_OUTPUT_SHARED_LOCAL): Delete.
	* doc/invoke.texi (-fshared-data): Delete.
	* common.opt (fshared-data): Delete.
	* varasm.c (asm_emit_uninitialised): Remove flag_shared_data handling.
	(assemble_static_space): Remove #if 0 code.
	* system.h (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
	(ASM_OUTPUT_SHARED_LOCAL): Poison.
	* config/cris/cris.h: Remove FIXME.

2006-02-21  Paolo Bonzini  <bonzini@gnu.org>

	* doc/sourcebuild.texi (Front End Directory): No more double-colon
	hooks.

2006-02-21  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/26379
	* combine.c (simplify_shift_const_1): Disable nested shifts
	optimization for vector shifts.

2006-02-20  Roger Sayle  <roger@eyesopen.com>

	PR tree-optimization/26361
	* tree-vrp.c (extract_range_from_unary_expr): Handle NEGATE_EXPR
	of unsigned integer types.

2006-02-20  Sebastian Pop  <pop@cri.ensmp.fr>

	* tree-chrec.c (eq_evolutions_p): New.
	* tree-chrec.h (eq_evolutions_p): Declared.
	* tree-data-ref.c: Fix formatting.
	(datadep_stats, dependence_stats): New.
	(gcd): Moved...
	(print_direction_vector): New.
	(dump_data_dependence_relation): Use print_direction_vector.
	(object_analysis, create_data_ref): Handle COMPONENT_REF.
	(compute_subscript_distance): Static.
	(initialize_data_dependence_relation): Static.  Get the number
	of loops surrounding the references from the callers, and initialize
	DDR_SIZE_VECT to nb_loops.  Use both base_addr_differ_p and
	base_object_differ_p analyzers.
	(analyze_ziv_subscript, analyze_siv_subscript_cst_affine,
	compute_overlap_steps_for_affine_1_2,
	analyze_subscript_affine_affine): Count the classified dependences.
	Print a message when a test failed.
	(can_use_analyze_subscript_affine_affine): New.
	(analyze_siv_subscript): Compute the data dependences on symbolic
	scevs that verify can_use_analyze_subscript_affine_affine.
	(chrec_steps_divide_constant_p): Returns true, false, or unknown.
	(analyze_miv_subscript): Update use of chrec_steps_divide_constant_p.
	Handle symbolic scevs.
	(analyze_overlapping_iterations): Let symbolic affine scevs to be
	analyzed.
	(subscript_dependence_tester): Moved...
	(build_classic_dist_vector, build_classic_dir_vector): Don't use
	lambda_vector_clear on newly allocated vectors.  Get nb_loops from
	DDR_SIZE_VECT instead of getting it in parameter.
	(subscript_dependence_tester): ... here.  Take as a parameter
	loop_nest_depth.  Call build_classic_dist_vector and
	build_classic_dir_vector.
	(compute_affine_dependence): Update subscript_dependence_tester
	parameters.  Update datadep_stats counters.  Call
	compute_subscript_distance.
	(compute_self_dependence): Save the dist and dir vectors.  Call
	compute_subscript_distance.
	(ddr_p, DEF_VEC_P(ddr_p), DEF_VEC_ALLOC_P(ddr_p,heap)): Moved...
	(compute_all_dependences): Reorder parameters as they were before
	conversion to VEC.  Pass nb_loops and loop_nest_depth.  Don't call
	compute_subscript_distance.  Update the use of
	compute_affine_dependence and initialize_data_dependence_relation.
	(find_data_references_in_loop): Handle COMPONENT_REF.
	(compute_data_dependences_for_loop): Initialize dependence_stats.
	Don't call build_classic_dist_vector and build_classic_dir_vector.
	Update the parameters of initialize_data_dependence_relation and
	compute_all_dependences.  Print the statistics from datadep_stats.
	(analyze_all_data_dependences): Static.  Not used until the pass for
	checking the data dependences is contributed.
	* tree-data-ref.h (ddr_p, DEF_VEC_P(ddr_p),
	DEF_VEC_ALLOC_P(ddr_p,heap)): ... here.
	(initialize_data_dependence_relation, compute_affine_dependence,
	analyze_all_data_dependences, compute_subscript_distance): Removed.
	(print_direction_vector): New.
	* lambda.h (gcd): ... here.
	(lambda_vector_gcd): Moved here from gcd_vector.
	* lambda-code.c (gcd, gcd_vector): Removed.
	(lambda_compute_target_space): Use lambda_vector_gcd.  Fix formatting.
	* Makefile.in (tree-vect-patterns.o): Depends on TREE_DATA_REF_H.

2006-02-20  Diego Novillo  <dnovillo@redhat.com>

	* ipa-type-escape.c: Tidy some comments and white space.
	* tree-ssa-operands.c: Likewise.

2006-02-20  Andrew Pinski  <pinskia@physics.uc.edu>

	PR tree-opt/25879
	* tree-pretty-print.c (debug_tree_chain): Walk the chains.
	(dump_decl_name): Do not walk the decl tree chains.
	* tree-pass.h (TDF_CHAIN): Remove.