re PR tree-optimization/31522 (False overflow warning with phi nodes)

[thirdparty/gcc.git] / gcc / ChangeLog

2007-04-16  Ian Lance Taylor  <iant@google.com>

	PR tree-optimization/31522
	* tree-vrp.c (vr_phi_edge_counts): New static variable.
	(vrp_initialize): Allocate vr_phi_edge_counts.
	(vrp_visit_phi_node): Don't push to infinity if we saw a new
	executable edge.  Drop test for all constants.
	(vrp_finalize): Free vrp_phi_edge_counts.

	* doc/cpp.texi (Common Predefined Macros): Clarify description of
	__GNUC_GNU_INLINE__ and __GNUC_STDC_INLINE__.

	* tree-ssa-propagate.c (cfg_blocks_add): Insert blocks with fewer
	predecessors at head rather than tail.

2007-04-16  Matthias Klose  <doko@debian.org>

	* gcc/config/alpha/linux.h (CPP_SPEC): Define.
	* gcc/config/arm/linux-gas.h (SUBTARGET_CPP_SPEC): Extend.

2007-04-16  Aldy Hernandez  <aldyh@redhat.com>

        * function.h: Remove sequence_stack extern declaration.

2007-04-16  Kazu Hirata  <kazu@codesourcery.com>

	* config/m68k/m68k.h (LONG_DOUBLE_TYPE_SIZE): Change to 64 on
	TARGET_FIDOA.
	(LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Change to 64 if __mfido__ is
	defined.

2007-04-16  Anatoly Sokolov <aesok@post.ru>

	* config/avr/avr.c (avr_arch_types): Rearranging  array.
	(enum avr_arch): Add.
	(avr_mcu_types): Use avr_arch enumeration constants instead of 
	numbers.
	* config/avr/avr.h (LINK_SPEC): Simplify.

2007-04-16  Kazu Hirata  <kazu@codesourcery.com>

	* config/m68k/m68k.c (m68k_libcall_value,
	m68k_function_value): Use macros for register names more.

	* config/m68k/m68k.h (FRAME_POINTER_REGNUM): Use A6_REG
	instead.
	(M68K_REGNAME): Use A6_REG.
	* config/m68k/m68k.md (FP_REG): Rename to A6_REG.

2007-04-16  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>

	PR middle-end/28071
	* sched-int.h (struct deps): Split field 'pending_lists_length' into
	'pending_read_list_length' and 'pending_write_list_length'.  Update
	comment.
	* sched-deps.c (add_insn_mem_dependence): Change signature.  Update
	to handle two length counters instead of one.  Update all uses.
	(flush_pending_lists, sched_analyze_1, init_deps): Update to handle
	two length counters instead of one.
	* sched-rgn.c (propagate_deps): Update to handle two length counters
	instead of one.

2007-04-16  H.J. Lu  <hongjiu.lu@intel.com>

	PR target/31582
	* config/i386/i386.c (ix86_expand_vec_set_builtin): Make a
	copy of source, pass it to ix86_expand_vector_set and return
	it as target.

2007-04-16  David Ung  <davidu@mips.com>
	    Joseph Myers  <joseph@codesourcery.com>

	* config/mips/mips.h (PROCESSOR_74KC, PROCESSOR_74KF,
	PROCESSOR_74KX, TUNE_74K, GENERATE_MADD_MSUB): Define.
	* config/mips/mips.c (mips_cpu_info_table, mips_rtx_cost_data):
	Add 74K processor information.
	* config/mips/mips.md: Include 74k.md.
	(cpu): Add 74kc,74kf,74kx.
	(ISA_HAS_MADD_MSUB): Change to GENERATE_MADD_MSUB throughout.
	* config/mips/74k.md: New.
	* doc/invoke.texi (MIPS Options): Document 74K support.

2007-04-16  Dorit Nuzman  <dorit@il.ibm.com>

	* tree-vect-analyze.c (vect_analyze_operations): Reorganize calls to
	vectorizable_* functions.
	* tree-vect-transform.c (vectorizable_call): Add check for
	STMT_VINFO_RELEVANT_P, STMT_VINFO_DEF_TYPE and STMT_VINFO_LIVE_P.
	(vectorizable_store): likewise.
	(vectorizable_conversion): Add check for STMT_VINFO_DEF_TYPE.
	Add comments.
	(vectorizable_operation, vectorizable_type_demotion): Likewise.
	(vectorizable_type_promotion, vectorizable_load): Likewise.
	(vectorizable_live_operation, vectorizable_condition): Likewise.
	(vectorizable_assignment): Add check for STMT_VINFO_DEF_TYPE and
	STMT_VINFO_LIVE_P.
	(vect_transform_stmt): Reorganize calls to vectorizable_* functions.

2007-04-15  Kazu Hirata  <kazu@codesourcery.com>

	* config/m68k/linux.h (FUNCTION_VALUE_REGNO_P): Use macros for
	register numbers more.
	* config/m68k/m68k.h (STACK_POINTER_REGNUM,
	FRAME_POINTER_REGNUM, STATIC_CHAIN_REGNUM,
	M68K_STRUCT_VALUE_REGNUM, FUNCTION_VALUE, LIBCALL_VALUE,
	FUNCTION_VALUE_REGNO_P): Likewise.
	* config/m68k/m68kelf.h (M68K_STRUCT_VALUE_REGNUM,
	STATIC_CHAIN_REGNUM): Likewise.
	* config/m68k/m68kemb.h (FUNCTION_VALUE_REGNO_P): Likewise.
	* config/m68k/netbsd-elf.h (M68K_STRUCT_VALUE_REGNUM,
	STATIC_CHAIN_REGNUM, FUNCTION_VALUE_REGNO_P): Likewise.
	* config/m68k/m68k.md (FP_REG): New.

2007-04-15  Kazu Hirata  <kazu@codesourcery.com>

	* config/m68k/m68k.h (PREFERRED_STACK_BOUNDARY): Prefer 32-bit
	alignment on fido.

2007-04-15  Kazu Hirata  <kazu@codesourcery.com>

	* config/i386/i386.c, config/s390/s390.c, config/s390/s390.md,
	tree-ssa-loop-niter.c, tree-ssa-structalias.c, tree-vrp.c: Fix
	comment typos.

2007-04-11  Zdenek Dvorak  <dvorakz@suse.cz>

	* tree-ssa-loop-prefetch.c (loop_prefetch_arrays): Ignore
	cold loops.

2007-04-14  Andrew Pinski  <andrew_pinski@playstation.sony.com>

	PR c/31520
        * c-decl.c (finish_decl): Grab the type of the decl after the call
	to store_init_value.

2007-04-14  Steven Bosscher  <steven@gcc.gnu.org>

	* common.opt (fforward-propagate): Fix "Optimization" annotation.

2007-04-14  Jakub Jelinek  <jakub@redhat.com>

	PR c++/25874
	* omp-low.c (expand_omp_parallel): If child_cfun->cfg, free dominators,
	post dominators and cleanup cfg before returning.

2007-04-14  Bernd Schmidt  <bernd.schmidt@analog.com>

	* config/bfin/bfin.h (MODES_TIEABLE_P): Allow more modes to be tied.
	* config/bfin/bfin.md (movsi_insn): Delete two unused alternatives.

2007-04-14  Kazu Hirata  <kazu@codesourcery.com>

	* config.gcc: Recognize fido.
	* config/m68k/m68k-devices.def (fidoa): New.
	* config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Define
	__mfido__.
	(FL_FIDOA, TARGET_FIDOA): New.
	* config/m68k/m68k.opt (mfidoa): New.

2007-04-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

	PR middle-end/31322
	* dwarf2out.c (output_call_frame_info): Call assemble_external_libcall
	when a personality function is used.

2007-04-13  Bob Wilson  <bob.wilson@acm.org>

	* config/xtensa/xtensa.c (xtensa_expand_builtin): Use CALL_EXPR_FN.

2007-04-13  Mike Stump  <mrs@apple.com>

	* config/darwin-c.c (handle_c_option): Handle -fapple-kext here so
	we can...
	* config/darwin.opt (fapple-kext): Make C++ only.
	* config/darwin.c (darwin_override_options): Remove code to ensure
	-fapple-kext is given for C++ only.

2007-04-13  Richard Sandiford  <richard@codesourcery.com>

	* config/mips/vxworks.h (SUBTARGET_OVERRIDE_OPTIONS): Define.
	* config/mips/mips.c (override_options): Call
	SUBTARGET_OVERRIDE_OPTIONS, if defined.

2007-04-13  H.J. Lu  <hongjiu.lu@intel.com>

	* config/i386/i386.opt (msvr3-shlib): Removed.

	* doc/invoke.texi: Remove -msvr3-shlib.

2007-04-13  H.J. Lu  <hongjiu.lu@intel.com>

	* config/i386/i386.opt (mpopcnt): Replace "popcount" instruction
	with "popcnt" instruction.

2007-04-13  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/21258
	* tree-vrp.c (compare_case_labels): New helper.
	(find_switch_asserts): New function.
	(find_assert_locations): Call it for SWITCH_EXPRs.

2007-04-13  Uros Bizjak  <ubizjak@gmail.com>

	* config/i386/i386.h (X87_FLOAT_MODE_P): Check for TARGET_80387.
	* config/i386/i386.md (*cmpfp0): Remove check for TARGET_80387, this
	check is now implied in X87_FLOAT_MODE_P.
	(*cmpfp_u, *cmpfp_<mode>, *cmpfp_i_i387): Ditto.
	(*cmpfp_iu_387, fix_trunc<mode>_fisttp_i386_1): Ditto.
	(fix_trunc<mode>_i386_fisttp): Ditto.
	(fix_trunc<mode>_i387_fisttp_with_temp): Ditto.
	(*fix_trunc<mode>_i387_1, fix_truncdi_i387): Ditto.
	(fix_truncdi_i387_with_temp, fix_trunc<mode>_i387): Ditto.
	(fix_trunc<mode>_i387_with_temp, *fp_jcc_1_387): Ditto.
	(*fp_jcc_2_387, *fp_jcc_5_387, *fp_jcc_6_387): Ditto.
	(*fp_jcc_7_387, *fp_jcc_8<mode>_387): Ditto.
	(unnamed_splitters): Ditto.
	* config/i386/i386.c (function_value_32): Generate FIRST_FLOAT_REG
	for X87_FLOAT_MODE_P mode.  Override FIRST_FLOAT_REG with
	FIRST_SSE_REG for local functions when SSE math is enabled or
	for functions with sseregparm attribute.
	(standard_80387_constant_p): Return -1 if mode is not
	X87_FLOAT_MODE_P.
	(ix86_cc_mode): Assert that scalar mode is not DECIMAL_FLOAT_MODE_P.
	(ix86_expand_compare): Ditto.
	(ix86_expand_carry_flag_compare): Ditto.
	(ix86_expand_int_movcc): Check for SCALAR_FLOAT_MODE_P instead
	of FLOAT_MODE_P for cmp_mode and assert that cmp_mode is not
	DECIMAL_FLOAT_MODE_P.
	(ix86_preferred_output_reload_class): Use X87_FLOAT_MODE_P instead
	of SCALAR_FLOAT_MODE_P.
	(ix86_rtx_costs) [PLUS] Remove FLOAT_MODE_P and fall through to ...
	[MINUS]: ... here.  Add SSE_FLOAT_MODE_P and X87_FLOAT_MODE_P
	checks before FLOAT_MODE_P.
	[MULT]: Add SSE_FLOAT_MODE_P and X87_FLOAT_MODE_P checks
	before FLOAT_MODE_P.
	[DIV]: Ditto.
	[NEG]: Ditto.
	[ABS]: Ditto.
	[SQRT]: Ditto.
	[FLOAT_EXTEND]: Use SSE_FLOAT_MODE_P.

2007-04-12  Paolo Bonzini  <bonzini@gnu.org>
            Charles Wilson  <libtool@cwilson.fastmail.fm>

	* Makefile.in (stamp-as, stamp-collect-ld, stamp-nm): Remove.
	(libgcc.mvars): Don't depend on them.
	* configure.ac (as, collect-ld, nm): Create from exec-tool.in.
	* exec-tool.in: New.

2007-04-12  Brooks Moses  <brooks.moses@codesourcery.com>

	* doc/invoke.text (--help): Document --help=common.

2007-04-12  Thomas Neumann  <tneumann@users.sourceforge.net>

	* stub-objc.c (objc_build_keyword_decl): Avoid C++ keywords.

2007-04-12  Richard Sandiford  <richard@codesourcery.com>

	* Makefile.in (insn-emit.o): Depend on $(INTEGRATE_H).
	* genemit.c (main): Emit #include "integrate.h".
	* config/mips/mips-protos.h (SYMBOL_HALF): New mips_symbol_type.
	(LOADGP_RTP): New mips_loadgp_style.
	* config/mips/mips.h: Include config/vxworks-dummy.h.
	(TARGET_RTP_PIC): New macro.
	(TARGET_USE_GOT): Return true for TARGET_RTP_PIC.
	(TARGET_USE_PIC_FN_ADDR_REG): Return true for TARGET_VXWORKS_RTP.
	(ASM_OUTPUT_ADDR_DIFF_ELT): Emit function-relative case tables
	for TARGET_RTP_PIC.
	* config/mips/vxworks.h (SUBTARGET_ASM_SPEC): Define.  Pass down
	-mvxworks-pic when using -mrtp and a PIC option.
	* config/mips/mips.c (mips_classify_symbol): Return SYMBOL_GOT_DISP
	for RTP PIC.
	(mips_symbolic_constant_p, mips_symbolic_address_p)
	(mips_symbol_insns): Handle SYMBOL_HALF.
	(override_options): Warn about -G and -mrtp being used together.
	Initialize mips_lo_relocs[SYMBOL_HALF].
	(mips_current_loadgp_style): Return LOADGP_RTP for RTP PIC.
	(mips_emit_loadgp): Handle LOADGP_RTP.
	(mips_in_small_data_p): Return false for TARGET_VXWORKS_RTP.
	* config/mips/mips.md (loadgp_rtp): New insn and splitter.
	(tablejump): Handle function-relative case table entries if
	TARGET_RTP_PIC.
	* config/mips/predicates.md (symbol_ref_operand): New predicate.

2007-04-12  Richard Sandiford  <richard@codesourcery.com>

	* config/mips/mips.md (load_call<mode>): Allow any general register.
	destination.
	(sibcall_value_internal, sibcall_value_multiple_internal)
	(call_value_internal, call_value_split, call_value_multiple_internal)
	(call_value_multiple_split): Remove constraints from operand 0.

2007-04-12  Richard Sandiford  <richard@codesourcery.com>

	* config/mips/mips-protos.h: In comments, refer to loadgp_absolute
	rather than loadgp_noshared.
	* config/mips/mips.c (mips_emit_loadgp): Use gen_loadgp_absolute
	instead of gen_loadgp_noshared.  Use gen_loadgp_newabi instead of
	gen_loadgp.
	* config/mips/mips.md (loadgp): Rename to...
	(loadgp_newabi): ...this.
	(loadgp_noshared): Rename to...
	(loadgp_absolute): ...this.

2007-04-12  Richard Sandiford  <richard@codesourcery.com>

	* config/mips/mips.c (mips_ok_for_lazy_binding_p): Always return
	false for locally-binding symbols.
	(mips_dangerous_for_la25_p): Check mips_global_symbol_p.

2007-04-12  Richard Sandiford  <richard@codesourcery.com>

	* config/mips/mips-protos.h (SYMBOL_GOT_LOCAL): Rename to...
	(SYMBOL_GOT_PAGE_OFST): ...this.
	(SYMBOL_GOT_GLOBAL): Rename to...
	(SYMBOL_GOT_DISP): ...this.
	(SYMBOL_GOTOFF_GLOBAL): Rename to...
	(SYMBOL_GOTOFF_DISP): ...this.  Update comments accordingly.
	* config/mips/mips.c (mips_global_symbol_p): New function.
	(mips_symbol_binds_local_p): Likewise.
	(mips_classify_symbol): Rename SYMBOL_GOT_GLOBAL to SYMBOL_GOT_DISP
	and SYMBOL_GOT_LOCAL to SYMBOL_GOT_PAGE_OFST.  Use mips_global_symbol_p
	and mips_symbol_binds_local_p.
	(mips_symbolic_constant_p, mips_symbolic_address_p, mips_symbol_insns)
	(override_options): Rename SYMBOL_GOT_GLOBAL to SYMBOL_GOT_DISP,
	SYMBOL_GOT_LOCAL to SYMBOL_GOT_PAGE_OFST and SYMBOL_GOTOFF_GLOBAL to
	SYMBOL_GOTOFF_DISP.
	(mips_ok_for_lazy_binding_p): New function.
	(mips_load_call_address, mips_expand_call): Use it.
	(mips_dangerous_for_la25_p): Likewise.
	* config/mips/mips.md (*xgot_hi<mode>, *xgot_lo<mode>)
	(*got_disp<mode>): Use got_disp_operand instead of
	global_got_operand.  Use SYMBOL_GOTOFF_DISP instead of
	SYMBOL_GOTOFF_GLOBAL.
	(*got_page<mode>): Use got_page_ofst_operand instead of
	local_got_operand.
	* config/mips/predicates.md (const_call_insn_operand): Use
	SYMBOL_GOT_DISP instead of SYMBOL_GOT_GLOBAL.
	(global_got_operand): Rename to...
	(got_disp_operand): ...this and use SYMBOL_GOT_DISP instead of
	SYMBOL_GOT_GLOBAL.
	(local_got_operand): Rename to...
	(got_page_ofst_operand): ...this and use SYMBOL_GOT_PAGE_OFST instead
	of SYMBOL_GOT_LOCAL.

2007-04-12  Richard Sandiford  <richard@codesourcery.com>

	* config/mips/mips.h (TARGET_SPLIT_CALLS): Check
	TARGET_CALL_CLOBBERED_GP.
	(TARGET_SIBCALLS): Check TARGET_USE_GOT instead of TARGET_ABICALLS.
	(TARGET_USE_GOT, TARGET_CALL_CLOBBERED_GP): New macros.
	(TARGET_CALL_SAVED_GP, TARGET_USE_PIC_FN_ADDR_REG): Likewise.
	(STARTING_FRAME_OFFSET): Check TARGET_CALL_CLOBBERED_GP instead
	of TARGET_ABICALLS && !TARGET_NEWABI.
	(MIPS_CALL): Check TARGET_USE_GOT instead of TARGET_ABICALLS.
	* config/mips/mips.c (mips_load_call_address): Check
	TARGET_CALL_SAVED_GP instead of TARGET_NEWABI.
	(mips_global_pointer): Check TARGET_USE_GOT instead of TARGET_ABICALLS.
	Check TARGET_CALL_SAVED_GP instead of TARGET_NEWABI.
	(mips_save_reg_p): Check TARGET_CALL_SAVED_GP instead of
	TARGET_ABICALLS && TARGET_NEWABI.
	(mips_current_loadgp_style): Check TARGET_USE_GOT instead of
	TARGET_ABICALLS.
	(mips_expand_prologue): Check TARGET_OLDABI instead of !TARGET_NEWABI.
	(mips_expand_epilogue): Check TARGET_CALL_SAVED_GP instead of
	TARGET_ABICALLS && TARGET_NEWABI.
	(mips_output_mi_thunk): Check TARGET_USE_GOT instead of
	TARGET_ABICALLS.  Check TARGET_CALL_SAVED_GP instead of
	TARGET_NEWABI.  Use TARGET_USE_PIC_FN_ADDR_REG to decide
	whether indirect calls must use $25.
	(mips_extra_live_on_entry): Check TARGET_GOT instead of
	TARGET_ABICALLS.
	* config/mips/mips.md (jal_macro): Check flag_pic and
	TARGET_CALL_CLOBBERED_GP instead of TARGET_ABICALLS and TARGET_NEWABI.
	(builtin_setjmp_setup, builtin_longjmp): Check TARGET_USE_GOT
	instead of TARGET_ABICALLS.
	(exception_receiver): Check TARGET_CALL_CLOBBERED_GP instead of
	TARGET_ABICALLS && TARGET_OLDABI.
	(load_call<mode>): Check TARGET_USE_GOT instead of TARGET_ABICALLS.
	(sibcall): In the comment above the define_insn, mention
	TARGET_USE_PIC_FN_ADDR_REG instead of TARGET_ABICALLS.
	* config/mips/constraints.md (c): Check TARGET_USE_PIC_FN_ADDR_REG
	instead of TARGET_ABICALLS.

2007-04-12  Bernd Schmidt  <bernd.schmidt@analog.com>

	* doc/md.texi (Blackfin family constraints): Document PA and PB.
	* config/bfin/bfin.h (CONST_OK_FOR_P): Handle PA and PB.
	(MACFLAGS_MATCH_P): New macro.
	* config/bfin/bfin.c (print_operand): Handle MACFLAG_IS_M.
	(bfin_secondary_reload): Treat EVEN_AREGS and ODD_AREGS like AREGS.
	* config/bfin/bfin.md (MACFLAG_IS_M): New constant.  Renumber some of
	the other MACFLAG constants.
	(sum_of_accumulators, lshrpdi3, ashrpdi3): New patterns.
	(flag_machi): Tighten constraints.  Renumber some of the operands.
	(flag_machi_acconly): Tighten constraints.  Correct operand numbers in
	output template.
	(flag_machi_parts_acconly): New pattern.
	(flag_macinithi): Tighten constraints.  Allow any accumulator to be
	used.
	(flag_macinit1hi): Tighten constraints.
	(flag_mul_macv2hi_parts_acconly): New pattern.

	* config/bfin/lib1funcs.asm (___umulsi3_highpart, __smulsi3_highpart):
	Use a more efficient implementation.
	* config/bfin/bfin.md (umulsi3_highpart, smulsi3_highpart): Emit
	inline sequences when not optimizing for size.

	* config/bfin/bfin.md (movhi_low2high, movhi_high2high, movhi_low2low,
	movhi_high2low): Delete, merge functionality into...
	(packv2hi): ... this pattern.

	2007-02-11  Jie Zhang  <jie.zhang@analog.com>
	* config/bfin/bfin.opt (msim): New option.
	(mcpu=): New option.
	* config/bfin/bfin-protos.h (enum bfin_cpu): New.
	(bfin_cpu_t): Typedef of enum bfin_cpu.
	(bfin_cpu_type): New declaration.
	* config/bfin/elf.h (STARTFILE_SPEC): Add support for
	-msim and -mcpu= options.
	(LIB_SPEC): Likewise.
	* config/bfin/bfin.c (bfin_cpu_type): Define.
	(bfin_handle_option): Handle -mcpu= option.
	* config/bfin/bfin.h (DEFAULT_CPU_TYPE): Define as BFIN_CPU_BF532.
	(TARGET_CPU_CPP_BUILTINS): Define __ADSPBF531__, __ADSPBF532__,
	__ADSPBF533__ or __ADSPBF537__ according to the cpu type.

2007-04-12  Richard Sandiford  <richard@codesourcery.com>

	* config.gcc (*-*-vxworks*): Don't add to tm_files in this stanza.
	(arm-wrs-vxworks, mips-wrs-vxworks, powerpc-wrs-vxworks)
	(powerpc-wrs-vxworksae): Use ${tm_file}.
	(i[4567]86-wrs-vxworks, i[4567]86-wrs-vxworksae): Add svr4.h
	after elfos.h.  Remove i386/sysv4.h and add i386/vx-common.h.
	* config/i386/vx-common.h: New file.

2007-04-12  Richard Sandiford  <richard@codesourcery.com>

	* config/vxworks.h (VXWORKS_STARTFILE_SPEC): Use -l:crt0.o instead
	of crt0.o%s.

2007-04-12  Andreas Krebbel  <krebbel1@de.ibm.com>

	* config/s390/s390.md ("trunctddd2"): Use TDmode for the target of
	ldxtr.

2007-04-12  Douglas Gregor  <doug.gregor@gmail.com>

	PR c++/31078
	PR c++/31103
	* c-common.c (c_build_qualified_type): Set canonical type
	appropriately.  

2007-04-12  Richard Guenther  <rguenther@suse.de>

	* tree-pretty-print.c (dump_generic_node): Print ARRAY_REF
	lower bound and element size if lower bound is not zero
	or either of the ARRAY_REF operands is set.

2007-04-12  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/24689
	PR tree-optimization/31307
	* fold-const.c (operand_equal_p): Compare INTEGER_CST array
	indices by value.
	* gimplify.c (canonicalize_addr_expr): To be consistent with
	gimplify_compound_lval only set operands two and three of
	ARRAY_REFs if they are not gimple_min_invariant.  This makes
	it never at this place.
	* tree-ssa-ccp.c (maybe_fold_offset_to_array_ref): Likewise.

2007-04-11  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

	* pa.c (pa_som_asm_init_sections): Ensure that cfun->machine is not
	null before emitting a .nsubspa directive.

2007-04-11  Diego Novillo  <dnovillo@redhat.com>

	* tree-ssa-alias.c (dump_mem_ref_stats): Do not call
	need_to_partition_p if there are no memory statements in the
	function.

2007-04-11  Zdenek Dvorak  <dvorakz@suse.cz>

	* tree-data-ref.c (chrec_steps_divide_constant_p): Removed.
	(gcd_of_steps_may_divide_p): New function.
	(analyze_miv_subscript): Use gcd_of_steps_may_divide_p.

2007-04-11  Bernd Schmidt  <bernd.schmidt@analog.com>

	* reload.c (find_reloads_toplev, find_reloads_address,
	find_reloads_address_1, find_reloads_subreg_address): Use rtx_equal_p,
	not a pointer equality test, to decide if we need to call
	push_reg_equiv_alt_mem.

2007-04-11  Sebastian Pop  <sebastian.pop@inria.fr>

	* tree-data-ref.c (affine_function_zero_p, constant_access_functions,
	insert_innermost_unit_dist_vector, add_distance_for_zero_overlaps): New.
	(build_classic_dist_vector): Call add_distance_for_zero_overlaps.

2007-04-11  Zdenek Dvorak  <dvorakz@suse.cz>

	* tree-data-ref.c (add_multivariate_self_dist): Force the distance
	vector to be positive.

2007-04-11  Diego Novillo  <dnovillo@redhat.com>

	PR 30735
	PR 31090
	* doc/invoke.texi: Document --params max-aliased-vops and
	avg-aliased-vops.
	* tree-ssa-operands.h (get_mpt_for, dump_memory_partitions,
	debug_memory_partitions): Move to tree-flow.h
	* params.h (AVG_ALIASED_VOPS): Define.
	* tree-ssa-alias.c (struct mp_info_def): Remove.  Update all
	users.
	(mp_info_t): Likewise.
	(get_mem_sym_stats_for): New.
	(set_memory_partition): Move from tree-flow-inline.h.
	(mark_non_addressable): Only clear the set of symbols for the
	partition if it exists.
	(dump_memory_partitions): Move from tree-ssa-operands.c
	(debug_memory_partitions): Likewise.
	(need_to_partition_p): New.
	(dump_mem_ref_stats): New.
	(debug_mem_ref_stats): New.
	(dump_mem_sym_stats): New.
	(debug_mem_sym_stats): New.
	(update_mem_sym_stats_from_stmt): New.
	(compare_mp_info_entries): New.
	(mp_info_cmp): Call it.
	(sort_mp_info): Change argument to a list of mem_sym_stats_t
	objects.
	(get_mpt_for): Move from tree-ssa-operands.c.
	(find_partition_for): New.
	(create_partition_for): Remove.
	(estimate_vop_reduction): New.
	(update_reference_counts): New.
	(build_mp_info): New.
	(compute_memory_partitions): Refactor.
	Document new heuristic.
	Call build_mp_info, update_reference_counts,
	find_partition_for and estimate_vop_reduction.
	(compute_may_aliases): Populate virtual operands before
	calling debugging dumps.
	(delete_mem_sym_stats): New.
	(delete_mem_ref_stats): New.
	(init_mem_ref_stats): New.
	(init_alias_info): Call it.
	(maybe_create_global_var): Remove alias_info argument.
	Get number of call sites and number of pure/const call sites
	from gimple_mem_ref_stats().
	(dump_alias_info): Call dump_memory_partitions first.
	(dump_points_to_info_for): Show how many times a pointer has
	been dereferenced.
	* opts.c (decode_options): For -O2 set --param
	max-aliased-vops to 500.
	For -O3 set --param max-aliased-vops to 1000 and --param
	avg-aliased-vops to 3.
	* fortran/options.c (gfc_init_options): Remove assignment to
	MAX_ALIASED_VOPS.
	* tree-flow-inline.h (gimple_mem_ref_stats): New.
	* tree-dfa.c (dump_variable): Dump memory reference
	statistics.
	Dump NO_ALIAS* settings.
	(referenced_var_lookup): Tidy.
	(mem_sym_stats): New.
	* tree-ssa-copy.c (may_propagate_copy): Return true if DEST
	and ORIG are different SSA names for a memory partition.
	* tree-ssa.c (delete_tree_ssa): Call delete_mem_ref_stats.
	* tree-flow.h (struct mem_sym_stats_d): Define.
	(mem_sym_stats_t): Define.
	(struct mem_ref_stats_d): Define.
	(struct gimple_df): Add field mem_ref_stats.
	(enum noalias_state): Define.
	(struct var_ann_d): Add bitfield noalias_state.
	(mem_sym_stats, delete_mem_ref_stats, dump_mem_ref_stats,
	debug_mem_ref_stats, debug_memory_partitions,
	debug_mem_sym_stats): Declare.
	* tree-ssa-structalias.c (update_alias_info): Update call
	sites, pure/const call sites and asm sites in structure
	returned by gimple_mem_ref_stats.
	Remove local variable IS_POTENTIAL_DEREF.
	Increase NUM_DEREFS if the memory expression is a potential
	dereference.
	Call update_mem_sym_stats_from_stmt.
	If the memory references memory, call
	update_mem_sym_stats_from_stmt for all the direct memory
	symbol references found.
	(intra_create_variable_infos): Set noalias_state field for
	pointer arguments according to the value of
	flag_argument_noalias.
	* tree-ssa-structalias.h (struct alias_info): Remove fields
	num_calls_found and num_pure_const_calls_found.
	(update_mem_sym_stats_from_stmt): Declare.
	* params.def (PARAM_MAX_ALIASED_VOPS): Change description.
	Set default value to 100.
	(PARAM_AVG_ALIASED_VOPS): Define.

2007-04-11  Richard Guenther  <rguenther@suse.de>

	PR middle-end/31530
	* simplify-rtx.c (simplify_binary_operation_1): Do not simplify
	a * -b + c as c - a * b if we honor sign dependent rounding.

2007-04-11  Bernd Schmidt  <bernd.schmidt@analog.com>

	* config/bfin/bfin-protos.h (bfin_expand_movmem): Renamed from
	bfin_expand_strmov.
	* config/bfin/bfin.c (bfin_expand_prologue, bfin_delegitimize_address,
	bfin_function_ok_for_sibcall, split_load_immediate): Remove unused
	variables.
	(initialize_trampoline): Don't use old-style function definition.
	(bfin_secondary_reload): Mark IN_P argument as unused.

2007-04-10  Sebastian Pop  <sebastian.pop@inria.fr>

	PR tree-optimization/31343
	* tree-chrec.h (chrec_zerop): Moved before build_polynomial_chrec.
	(build_polynomial_chrec): Return a scalar when the evolution is zero.
	* testsuite/gcc.dg/vect/pr31343.c: New.

2007-04-10  Eric Christopher  <echristo@apple.com>

	* config/i386/i386.h (X87_FLOAT_MODE_P): New.
	* config/i386/i386.md (*cmpfp0): Use.
	(*cmpfp_u, *cmpfp_<mode>, *cmpfp_i_i387): Ditto.
	(*cmpfp_iu_387, fix_trunc<mode>_fisttp_i386_1): Ditto.
	(fix_trunc<mode>_i386_fisttp): Ditto.
	(fix_trunc<mode>_i387_fisttp_with_temp): Ditto.
	(*fix_trunc<mode>_i387_1, fix_truncdi_i387): Ditto.
	(fix_truncdi_i387_with_temp, fix_trunc<mode>_i387): Ditto.
	(fix_trunc<mode>_i387_with_temp, *fp_jcc_1_387): Ditto.
	(*fp_jcc_2_387, *fp_jcc_5_387, *fp_jcc_6_387): Ditto.
	(*fp_jcc_7_387, *fp_jcc_8<mode>_387): Ditto.
	(unnamed_splitters): Ditto.
	* config/i386/i386.c (output_fix_trunc): Assert that
	we're not being passed a TFmode operand.

2007-04-10  Zdenek Dvorak  <dvorakz@suse.cz>

	PR tree-optimization/31526
	* tree-inline.c (copy_cfg_body): Use last_basic_block instead of
	n_basic_blocks to find newly added blocks.

2007-04-10  Uros Bizjak  <ubizjak@gmail.com>

	* config/i386/i386.md (fix_trunc<mode>di_sse): Remove "x" from "xm"
	alternative.
	(fix_trunc<mode>si_sse): Ditto.
	(*floatsisf2_mixed, *floatsisf2_sse): Ditto.
	(*floatsidf2_mixed, *floatsidf2_sse): Ditto.
	(*floatdisf2_mixed, *floatdisf2_sse): Ditto.
	(*floatdidf2_mixed, *floatdidf2_sse): Ditto.
	(floathi<mode>2): Rename from floathisf2 and floathidf2. Macroize
	expander using SSEMODEF mode macro.
	(floatsi<mode>2): Rename from floatsisf2 and floashidf2. Macroize
	expander using SSEMODEF mode macro.
	(*floathi<mode>2_i387): Rename from *floathisf2_i387 and
	*floathidf2_i387. Macroize insn using X87MODEF12 mode macro.
	(*floatsi<mode>2_i387): Rename from *floatsisf2_i387 and
	*floatsidf2_i387. Macroize insn using X87MODEF12 mode macro.
	(*floatdi<mode>2_i387): Rename from *floatdisf2_i387 and
	*floatdidf2_i387. Macroize insn using X87MODEF12 mode macro.
	(float<mode>xf2): Rename from floathixf2, floatsixf2 and floatdixf2.
	Macroize insn using X87MODEF mode macro.

2007-04-09  H.J. Lu  <hongjiu.lu@intel.com>

	* config/i386/sse.md (sse2_pinsrw): Removed.
	(sse2_pextrw): Renamed to ...
	(*sse2_pextrw): This.

2007-04-09  Jan Hubicka  <jh@suse.cz>

	PR target/27869
	* config/i386/sse.md
	(sse_vmaddv4sf3, sse_vmmulv4sf3): Remove '%' modifier.
	(sse_vmsmaxv4sf3_finite, sse_vmsminv4sf3_finite): Remove.
	(sse2_vmaddv2df3, sse2_vmmulv2df3): Remove '%' modifier.
	(sse2_vmsmaxv2df3_finite, sse2_vmsminv2df3_finite): Remove.

2007-04-09  Jan Hubicka  <jh@suse.cz>

	* tree-ssa-ccp (maybe_fold_offset_to_component_ref): Recurse into
	multiple fields of union.

2007-04-09  Zdenek Dvorak  <dvorakz@suse.cz>

	* cfgloopmanip.c (create_preheader): Do not use loop_preheader_edge.
	(create_preheaders): Check that loops are available.
	(fix_loop_structure): Clean up, improve comments.
	* tree-ssa-loop-manip.c (rewrite_into_loop_closed_ssa):
	Check that loops are available.  Set LOOP_CLOSED_SSA to the loops
	state flags.
	* tree-scalar-evolution.c (scev_finalize): Clear scalar_evolution_info.
	* predict.c (tree_estimate_probability): Do not call
	calculate_dominance_info.  Call create_preheaders.
	* tree-cfgcleanup.c (cleanup_tree_cfg_loop): Only call
	rewrite_into_loop_closed_ssa if LOOP_CLOSED_SSA is set in loops state
	flags.
	* cfgloop.c (loop_preheader_edge): Assert that loops have preheaders.
	* cfgloop.h (LOOP_CLOSED_SSA): New constant.
	* tree-cfg.c (tree_split_edge): Make an assert more precise.
	* tree-ssa-threadedge.c (thread_across_edge): Comment the function
	arguments.

2007-04-08  Jan Hubicka  <jh@suse.cz>

	* tree.h (maybe_fold_offset_to_component_ref): Declare.
	* tree-ssa-ccp.c (maybe_fold_offset_to_component_ref): Export.
	* fold-const.c (fold_unary): Use it.

2007-04-08  Andrew Pinski  <andrew_pinski@playstation.sony.com>

	* varasm.c (assemble_variable): Remove call to
	lang_hooks.decls.prepare_assemble_variable.
	* langhooks-def.h (LANG_HOOKS_PREPARE_ASSEMBLE_VARIABLE): Kill.
	(LANG_HOOKS_DECLS): Remove LANG_HOOKS_PREPARE_ASSEMBLE_VARIABLE.
	* langhooks.h (lang_hooks_for_decls): Remove
	prepare_assemble_variable.

2007-04-08  Mike Stump  <mrs@apple.com>

	* config/i386/i386.c: Use inc/dec on Core2.

2007-04-08  Steven Bosscher  <steven@gcc.gnu.org>

	* langhooks.c (lhd_tree_inlining_add_pending_fn_decls,
	lhd_tree_inlining_anon_aggr_type_p, lhd_tree_inlining_start_inlining,
	lhd_tree_inlining_end_inlining): Remove.
	* langhooks.h (struct lang_hooks_for_tree_inlining): Remove then
	add_pending_fn_decls, anon_aggr_type_p, start_inlining, and
	end_inlining hooks.
	* langhooks-def.h (lhd_tree_inlining_add_pending_fn_decls,
	lhd_tree_inlining_anon_aggr_type_p, lhd_tree_inlining_start_inlining,
	lhd_tree_inlining_end_inlining): Remove prototypes.
	(LANG_HOOKS_TREE_INLINING_ADD_PENDING_FN_DECLS,
	LANG_HOOKS_TREE_INLINING_ANON_AGGR_TYPE_P,
	LANG_HOOKS_TREE_INLINING_START_INLINING,
	LANG_HOOKS_TREE_INLINING_END_INLINING): Remove.

	* c-objc-common.h (LANG_HOOKS_TREE_INLINING_ANON_AGGR_TYPE_P): Do
	not set it.

2007-04-08  Anatoly Sokolov <aesok@post.ru>

	PR target/29932
	* config/avr/predicates.md (io_address_operand): Delete predicate.
	(low_io_address_operand): Don't use 'mode' argument.
	(higth_io_address_operand): Rename ...
	(high_io_address_operand): ... to this. Don't use 'mode' argument.
	* config/avr/avr.md (*sbix_branch_tmp, *sbix_branch_tmp_bit7): Adjust
	for above change.

2007-04-07  Daniel Berlin  <dberlin@dberlin.org>

	Revert change removing staticp.

2007-04-07  Anatoly Sokolov <aesok@post.ru>

	PR target/30289
	* config/avr/avr.md (*clrmemqi, *clrmemhi): Mark operand 4 as
	earlyclobber.

2007-04-07  Bruce Korb  <bkorb@gnu.org>

	* c.opt: Add -Wformat-contains-nul.
	* c-format.c (set_Wformat):  Set warn_format_contains_nul to the
	  -Wformat setting.
	(check_format_info_main): Check OPT_Wformat_contains_nul before emitting
	the NUL byte warning.

2007-04-07  H.J. Lu  <hongjiu.lu@intel.com>

	* config/i386/i386.c (ix86_handle_option): Handle SSSE3.

2007-04-06  Daniel Berlin  <dberlin@dberlin.org>

	* tree.c (staticp): No longer use staticp langhook.
	* langhooks.c (lhd_staticp): Removed.
	* langhooks.h (struct lang_hooks): Remove staticp.
	* c-common.c (c_staticp): Remove.
	* c-common.h (c_staticp): Ditto.
	* langhooks-defs.h (lhd_staticp): Ditto.
	(LHD_HOOKS_STATICP): Ditto
	* tree.h (gcc_assert_lowered): New macro.

2007-04-06  Zdenek Dvorak  <dvorakz@suse.cz>

	* tree-ssa-loop-niter.c (idx_infer_loop_bounds): Add and use
	argument "reliable".
	(infer_loop_bounds_from_ref, infer_loop_bounds_from_array):
	Add argument "reliable".  Propagate it through calls.
	(infer_loop_bounds_from_undefined):  Derive number of iterations
	estimates from references in blocks that do not dominate loop latch.
	(gcov_type_to_double_int): New function.
	(estimate_numbers_of_iterations_loop): Use gcov_type_to_double_int
	and expected_loop_iterations_unbounded.
	* cfgloopanal.c (expected_loop_iterations_unbounded): New function.
	(expected_loop_iterations): Use expected_loop_iterations_unbounded.
	* tree-data-ref.c (estimated_loop_iterations): Export.
	(get_references_in_stmt): Fix -- do not return addresses of local
	objects.
	* cfgloop.h (expected_loop_iterations_unbounded,
	estimated_loop_iterations): Declare.

2007-04-06  Andreas Tobler  <a.tobler@schweiz.org>

	* tree-sra.c (sra_build_elt_assignment): Initialize min/maxshift.

2007-04-06  Uros Bizjak  <ubizjak@gmail.com>

	* config/i386/i386.md (extend<mode>xf2): Rename from extendsfxf2
	and extenddfxf2. Macroize expander using X87MODEF12 mode macro.
	(*truncdfsf_mixed, *truncdfsf_i387, *truncdfsf2_i387_1):
	Use output_387_reg_move().
	(*truncxf<mode>2): Rename from *truncxfsf2 and truncxfdf2. Macroize
	expander using X87MODEF12 mode macro.
	(*truncxfsf2_mixed): Combine alternatives, ignore "r" alternative when
	choosing register preferences.  Use output_387_reg_move().
	(*truncxfdf2_mixed): Combine alternatives, use "r" alternative
	instead of "x".  Use output_387_reg_move().
	(*truncxf<mode>2_i387_noop): Rename from *truncxfsf2_i387_noop and
	*truncxfdf2_i387_noop.  Macroize insn using X87MODEF12 mode macro.
	(*truncxf<mode>2_i387): Rename from *truncxfsf2_i387 and
	*truncxfdf2_i387.  Macroize insn using X87MODEF12 mode macro.
	Use output_387_reg_move().
	(*truncxf?f_mixed splitter): Macroize splitter using X87MODEF12
	mode macro.
	(*truncxf?f_i387 splitter): Ditto.

2007-04-06  Daniel Berlin  <dberlin@dberlin.org>

	* langhooks-def.h (LANG_HOOKS_INITIALIZER): Remove
	LANG_HOOKS_SAFE_FROM_P.
	* expr.c (safe_from_p): Remove langhook call.
	* langhooks.h (lang_hooks): Remove safe_from_p.
	(lhd_safe_from_p): Remove prototype.
	* langhooks.c (lhd_safe_from_p): Remove.

2007-04-06  Jan Hubicka  <jh@suse.cz>

	* cgraphunit.c (decide_is_function_needed): Do not keep always_inline
	functions.

2007-04-06  Uros Bizjak  <ubizjak@gmail.com>

	* config/i386/i386.c (output_387_reg_move): Handle memory operand[0].
	* config/i386/i386.md (*movsf_1, *movdf_nointeger,
	*movdf_integer_rex64, *movdf_integer, *movxf_nointeger,
	*movxf_integer): Use output_387_reg_move() for x87 reg->mem
	alternative.
	(*extendsfdf2_mixed, *extendsfdf2_i387, *extendsfxf2_i387,
	*extenddfxf2_i387, *truncdfsf_fast_mixed): Ditto.

2007-04-05  Richard Henderson  <rth@redhat.com>

	* config/alpha/alpha.c (print_operand) [+]: Remove.
	(alpha_end_function): Print nop if call at end of function.
	* config/alpha/alpha.h (PRINT_OPERAND_PUNCT_VALID_P): Remove +.
	* config/alpha/alpha.md (UNSPEC_LDGP1): New.
	(call_osf_1_er_noreturn, call_value_osf_1_er_noreturn): New.
	(call_osf_2_er_nogp, call_value_osf_2_er_nogp): New.
	(call_osf_2_er, call_value_osf_2_er): Merge the ldgp highpart into
	the call pattern. Update peepholes to match.

2007-04-05  Janis Johnson  <janis187@us.ibm.com>

	* doc/extend.texi (Other Builtins): Add decimal float variants
	of signbit.
	* builtins.def: Ditto.
	* builtins.c (expand_builtin): Ditto.

2007-04-05  Uros Bizjak  <ubizjak@gmail.com>
	    H.J. Lu  <hongjiu.lu@intel.com>

	PR target/31478
	* config/i386/sse.md (sse2_umulv2siv2di3): Use V4SImode instead
	of V8HImode when calling ix86_binary_operator_ok.
	(sse2_pmaddwd): Call ix86_binary_operator_ok.
	(sdot_prodv8hi): Operands 1 and 2 must be register.

2007-04-05  Alexandre Oliva  <aoliva@redhat.com>

	* tree-sra.c (try_instantiate_multiple_fields): Needlessly
	initialize align to silence bogus warning.

2007-04-05  Alexandre Oliva  <aoliva@redhat.com>

	PR middle-end/22156
	* tree-sra.c (struct sra_elt): Add in_bitfld_block.  Remove
	all_no_warning.
	(struct sra_walk_fns): Remove use_all parameter from use.
	(sra_hash_tree): Handle BIT_FIELD_REFs.
	(sra_elt_hash): Don't hash bitfld blocks.
	(sra_elt_eq): Skip them in parent compares as well.  Handle
	BIT_FIELD_REFs.
	(sra_walk_expr): Don't maintain or pass down use_all_p.
	(scan_use): Remove use_all parameter.
	(scalarize_use): Likewise.  Re-expand assignment to
	BIT_FIELD_REF of gimple_reg.  De-scalarize before input or
	output, and re-scalarize after output.  Don't mark anything
	for no warning.
	(scalarize_ldst): Adjust.
	(scalarize_walk_gimple_modify_statement): Likewise.
	(build_element_name_1): Handle BIT_FIELD_REFs.
	(instantiate_element): Don't warn for any element whose parent
	is used as a whole.
	(instantiate_missing_elements_1): Return the sra_elt.
	(canon_type_for_field): New.
	(try_instantiate_multiple_fields): New.
	(instantiate_missing_elemnts): Use them.
	(mark_no_warning): Removed.
	(generate_one_element_ref): Handle BIT_FIELD_REFs.
	(REPLDUP, sra_build_elt_assignment): New.
	(generate_copy_inout): Use them.
	(generate_element_copy): Likewise.  Handle bitfld differences.
	(generate_element_zero): Don't recurse for blocks.  Use
	sra_build_elt_assignment.
	(generate_one_element_int): Take elt instead of var.  Use
	sra_build_elt_assignment.
	(generate_element_init_1): Adjust.
	(scalarize_use, scalarize_copy): Use REPLDUP.
	(scalarize_ldst): Move assert before dereference.
	(dump_sra_elt_name): Handle BIT_FIELD_REFs.

2007-04-05  Steven Bosscher  <steven@gcc.gnu.org>

	* regmove.c: Fix unused variable warnings due to previous commit.

2007-04-05  Steven Bosscher  <steven@gcc.gnu.org>

	* regmove.c (STACK_GROWS_DOWNWARD): Don't boolean-ize.
	(regmove_bb_head): Remove.
	(copy_src_to_dest): Don't update regmove_bb_head and BB_HEAD.
	(regmove_optimize): Don't do unnecessary CFG fixes for non-existing
	problems with fixup_match_1.
	Don't initialize/free regmove_bb_head.

	(reg_is_remote_constant_p): If an insn is in the same basic block
	but not before INSN, consider it remote, too.

2007-04-05  Anatoly Sokolov <aesok@post.ru>

	PR target/25448
	* config/avr/avr.c (avr_handle_fndecl_attribute): Use the
	DECL_ASSEMBLER_NAME, not the DECL_NAME.

2007-04-05  H.J. Lu  <hongjiu.lu@intel.com>

	* config/i386/i386.h (TARGET_CPU_CPP_BUILTINS): Reformat.
	(CONDITIONAL_REGISTER_USAGE): Likewise.

2007-04-04  Richard Henderson  <rth@redhat.com>

	* config/alpha/lib1funcs.asm: Remove unused file.

2007-04-04  Brooks Moses  <brooks.moses@codesourcery.com>

	PR other/31356
	* opts.c (print_specific_help): Fix --help=<language>
	header line.
	(common_handle_option): Support --help=common.

2007-04-04  Brooks Moses  <brooks.moses@codesourcery.com>

	PR other/31353
	* gcc.c (main): Do not run the linker if
	print_subprocess_help indicates that it shouldn't be
	run.

2007-04-04  Brooks Moses  <brooks.moses@codesourcery.com>

	PR doc/31355
	* doc/invoke.texi (--help=): Document <languages> value, fix
	formatting in tables of values.

2007-04-04  Danny Smith  <dannysmith.users.sourceforge.net>

	* config/i386/winnt-cxx.c (i386_pe_type_dllimport_p): Don't ignore
	dllimport attribute of virtual methods.

2007-04-04  Chen Liqin  <liqin@sunnorth.com.cn>

        * config/score/crti.asm: Change _bss_start to __bss_start.
        * config/score/score.h (CONDITIONAL_REGISTER_USAGE): Added.
        (OUTGOING_REG_PARM_STACK_SPACE) update.
        * config/score/score.opt: add options to make backend support
        score5, score5u, score7 and score7d.
        * config/score/score.md: Likewise.
        * config/score/misc.md: Likewise.
        * config/score/mac.md: Likewise.
        * doc/invoke.texi: Likewise.
        * doc/md.texi: update constraints define.

2007-04-03  Richard Henderson  <rth@redhat.com>

	* expr.c (store_expr): If get_signed_or_unsigned_type doesn't yield
	an appropriate type, use the mode instead.

2007-04-03  Richard Sandiford  <richard@codesourcery.com>

	* config.gcc (mips-wrs-vxworks): Add vx-common.h to tm_file.
	Set the default --with-arch setting to mips2.
	* config/mips/t-vxworks (MULTILIB_OPTIONS, MULTILIB_MATCHES)
	(MULTILIB_EXCEPTIONS): Redefine with new multilibs.
	(MULTILIB_OSDIRNAMES): Delete.
	(MULTILIB_DIRNAMES): Define.
	* config/mips/vxworks.h (LINK_SPEC): Add VXWORKS_LINK_SPEC.
	(LIB_SPEC, STARTFILE_SPEC, ENDFILE_SPEC): Define.
	(TARGET_OS_CPP_BUILTINS): Incorporate old SUBTARGET_CPP_SPEC
	definitions, except for _WRS_R3K_EXC_SUPPORT.  Call
	VXWORKS_OS_CPP_BUILTINS.
	(SUBTARGET_CPP_SPEC): Redefine to VXWORKS_ADDITIONAL_CPP_SPEC.
	(MIPS_DEBUGGING_INFO): Undefine.
	(FUNCTION_PROFILER): Define to VXWORKS_FUNCTION_PROFILER.

2007-04-03  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/30704
	* fold-const.c (native_encode_real): Encode real.c provided longs
	as a series of 32-bit native integers.
	(native_interpret_real): Interpret buffer as a series of 32-bit
	native integers.

2007-04-03  Richard Guenther  <rguenther@suse.de>

	* genpreds.c (write_insn_constraint_len): Write function
	optimized for CONSTRAINT_LEN implementation.
	(write_tm_preds_h): Output insn_constraint_len inline and
	use it for CONSTRAINT_LEN.
	(write_insn_preds_c): Don't output insn_constraint_len.
	* doc/md.texi (define_register_constraint): Document multi-letter
	constraints shall have the same length if they start with the same
	letter.

2007-04-03  Uros Bizjak  <ubizjak@gmail.com>

	PR target/31175
	* config/i386/i386.md (isinf<mode>2): Expand only when
	TARGET_C99_FUNCTIONS is set.

2007-04-03  Uros Bizjak  <ubizjak@gmail.com>

	* config.gcc (i[34567]86-*-linux*): Add i386/t-crtpc to tm-file.
	(x86_64-*-linux*): Ditto.
	* config/i386/i386.opt (mpc): New option.
	* config/i386/i386.c (overrride_options): Handle
	ix87_precision_string.
	* config/i386/crtprec.c: New file.
	* config/i386/t-crtpc: Ditto.
	* config/i386/linux.h (ENDFILE_SPEC): Add handling of -mpc32, -mpc64
	and -mpc80 options.
	* config/i386/linux64.h (ENDFILE_SPEC): Ditto.
	* config/i386/t-linux64 (EXTRA_MULTILIB_PARTS): Add
	crtprec32.o, crtprec64.o and crtprec80.o.

	* doc/invoke.texi (Machine Dependent Options): Add -mpc32, -mpc64
	and -mpc80 options.
	(i386 and x86-64 Options): Document -mpc32, -mpc64 and -mpc80 options.

2007-04-02  Eric Christopher  <echristo@apple.com>

	* doc/invoke.texi (i386 and x86-64 Options): Document -m64
	limitations on darwin.

2007-04-02  Anatoly Sokolov <aesok@post.ru>

	PR target/31137
	* config/avr/avr.c (avr_rtx_costs): Add missing 'break' statements.

2007-04-02  Dave Korn  <dave.korn@artimi.com>

	* doc/tm.texi (FUNCTION_MODE): Update and extend documentation.

2007-04-02  Dave Korn  <dave.korn@artimi.com>

	* libgcc2.h (exception_descriptor): Don't forward-declare.
	(__get_eh_table_language, __get_eh_table_version): Delete
	prototypes of long-dead functions.

2007-04-01  Daniel Berlin  <dberlin@dberlin.org>

	* ebitmap.h: New file
	* ebitmap.c: New file
	* Makefile.in (ebitmap.o): New target.

2007-04-01  Jan Hubicka  <jh@suse.cz>

	* emit-rtl.c (emit_insn_before_setloc): Do not ICE when asked to emit
	before very first instruction.

2007-04-01  Jan Hubicka  <jh@suse.cz>

	* ggc-page.c (ggc_print_statistics): Fix formatting string to avoid
	waring on 64bit hosts.
	* bitmap.h: Fix typo in bitmap_head_def.

2007-04-01  Steven Bosscher  <steven@gcc.gnu.org>

	PR rtl-optimization/31391
	* cfgcleanup.c (try_optimize_cfg): If a removed label is turned
	into a DELETED_LABEL note, and the label is in an empty basic
	block, update BB_END as well as BB_HEAD.

2007-04-01  Richard Henderson  <rth@redhat.com>

	PR tree-optimization/31169
	* tree-vrp.c (extract_range_from_binary_expr) <RSHIFT_EXPR>: Drop
	to varying if the range is outside [0,  prec-1].

2007-04-01  Richard Sandiford  <richard@codesourcery.com>

	PR target/31388
	* config/mips/mips.md (load_const_gp): New insn.
	* config/mips/mips.c (mips_split_symbol): Avoid using or creating
	the MIPS16 GP pseudo register if no_new_pseudos.
	(mips16_gp_pseudo_reg): Use gen_load_const_gp.

2007-03-31  Andrew Pinski  <andrew_pinski@playstation.sony.com>

	PR target/31364
	* config/rs6000/rs6000.md (call): Convert to LR hard reg for
	secureplt.
	(call_value): Likewise.

2007-03-31  Wolfgang Bangerth  <bangerth@dealii.org>
	    Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

	PR 14737
	* doc/invoke.texi: (optimization options): Reword description
	of -ffast-math. Document its primary purpose.

2007-03-31  Richard Guenther  <rguenther@suse.de>

	* omp-low.c (splay-tree.h): Include.
	(lookup_decl): Replace splay-tree usage by pointer-map.
	(maybe_lookup_decl): Likewise.
	(new_omp_context): Likewise.
	(delete_omp_context): Likewise.
	* gimplify.c (splay-tree.h): Include.
	* tree-inline.c (insert_decl_map): Replace splay-tree usage by
	pointer-map.
	(remap_ssa_name): Likewise.
	(remap_decl): Likewise.
	(remap_type_1): Likewise.
	(remap_type): Likewise.
	(copy_body_r): Likewise.
	(expand_call_inline): Likewise.
	(clone_body): Likewise.
	(copy_tree_r): Likewise.
	(remap_save_expr): Likewise.
	(unsave_r): Likewise.
	(unsave_expr_now): Likewise.
	(tree_function_versioning): Likewise.
	(build_duplicate_type): Likewise.
	* tree-inline.h (pointer-set.h): Include instead of splay-tree.h.
	(struct copy_body_data): Replace splay-tree by pointer-map.
	* Makefile.in (TREE_INLINE_H): Depend on pointer-map.h,
	not $(SPLAY_TREE_H).
	(gimplify.o): Depend on $(SPLAY_TREE_H).
	(omp-low.p): Likewise.

2007-03-31  Anatoly Sokolov <aesok@post.ru>

	* config/avr/predicates.md (even_register_operand,
	odd_register_operand): New predicates.
	* config/avr/avr.md (movw peephole2): New.
	(movw_r peephole2): New.

2007-03-30  Rafael Avila de Espindola  <espindola@google.com>

	* tree.h (get_signed_or_unsigned_type): New.
	* fold-const.c (operand_equal_for_comparison_p): Use
	get_signed_or_unsigned_type instead of
	lang_hooks.types.signed_or_unsigned_type.
	* expr.c (store_expr): Ditto.
	* langhooks.c (get_signed_or_unsigned_type): New.
	(lhd_signed_or_unsigned_type): New.
	* langhooks.h (lhd_signed_or_unsigned_type): New.
	* langhooks-def.h (LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE): Define.

2007-03-30  Richard Henderson  <rth@redhat.com>

	* tree-ssa-loop-ivopts.c: Include target.h.
	(produce_memory_decl_rtl): Pass the rtx through encode_section_info.
	(get_address_cost): Force SYMBOL_FLAG_LOCAL set.
	(force_expr_to_var_cost): Use produce_memory_decl_rtl.
	* Makefile.in (tree-ssa-loop-ivopts.o): Depend on TARGET_H.

2007-03-30  Richard Henderson  <rth@redhat.com>
	    Kai Tietz  <kai.tietz@onevision.com>

	* config/i386/cygming.h (DWARF2_DEBUGGING_INFO): Enable by
	default for 64-bit.
	(PREFERRED_DEBUGGING_TYPE): Prefer dwarf2 for 64-bit.
	(TARGET_64BIT_MS_ABI): New.
	(DBX_REGISTER_NUMBER): Handle 64-bit.
	(SIZE_TYPE, PTRDIFF_TYPE): Use long long for 64-bit.
	(LONG_TYPE_SIZE): Force to 32.
	(REG_PARM_STACK_SPACE): New.
	(OUTGOING_REG_PARM_STACK_SPACE): New.
	(REGPARM_MAX, SSE_REGPARM_MAX): New.
	(HANDLE_PRAGMA_PUSH_POP_MACRO): New.
	(STACK_BOUNDARY): Use 128 for 64-bit.
	* config/i386/cygwin.asm: Use push/ret to preserve call stack.
	Add 64-bit implementation.
	* config/i386/gthr-win32.c (__gthr_win32_key_create): Mark dtor
	argument unused.
	* config/i386/i386.c (x86_64_ms_abi_int_parameter_registers): New.
	(override_options): Set ix86_cmodel for TARGET_64BIT_MS_ABI.
	Warn for -mregparm, -mrtd in 64-bit mode; force ix86_regparm
	for 64-bit; use TARGET_SUBTARGET64_DEFAULT.
	(ix86_handle_cconv_attribute): Don't warn when ignoring if
	TARGET_64BIT_MS_ABI.
	(ix86_function_arg_regno_p): Handle TARGET_64BIT_MS_ABI.
	(ix86_pass_by_reference): Likewise.
	(ix86_function_value_regno_p): Likewise.
	(ix86_build_builtin_va_list): Likewise.
	(ix86_va_start, ix86_gimplify_va_arg): Likewise.
	(function_arg_advance_ms_64): New.
	(function_arg_advance): Call it.
	(function_arg_ms_64): New.
	(function_arg): Call it.
	(function_value_ms_64): New.
	(ix86_function_value_1): Call it.
	(return_in_memory_ms_64): New.
	(ix86_return_in_memory): Call it.
	(setup_incoming_varargs_ms_64): New.
	(ix86_setup_incoming_varargs): Call it.
	(ix86_expand_prologue): Handle 64-bit stack probing.
	(legitimize_pic_address): Handle TARGET_64BIT_MS_ABI.
	(output_pic_addr_const): Likewise.
	(x86_this_parameter): Likewise.
	(x86_output_mi_thunk): Likewise.
	(x86_function_profiler): Likewise.
	(TARGET_STRICT_ARGUMENT_NAMING): New.
	* config/i386/i386.h (TARGET_SUBTARGET64_DEFAULT): New.
	(TARGET_64BIT_MS_ABI): New.
	(CONDITIONAL_REGISTER_USAGE): Handle TARGET_64BIT_MS_ABI.
	* config/i386/i386.md (allocate_stack_worker): Remove.
	(allocate_stack_worker_32): Rename from allocate_stack_worker_1;
	describe the clobber of eax without a match_scratch.
	(allocate_stack_worker_postreload): Remove.
	(allocate_stack_worker_64): Rename from allocate_stack_worker_rex64;
	describe the clobbers of rax, r10, r11 properly; use __chkstk symbol.
	(allocate_stack_worker_rex64_postreload): Remove.
	(allocate_stack): Handle 64-bit.
	* config/i386/i386elf (TARGET_SUBTARGET_DEFAULT): Remove.
	* config/i386/mingw32.h (TARGET_VERSION): Set correctly for 64-bit.
	(EXTRA_OS_CPP_BUILTINS): Handle 64-bit.
	(STANDARD_INCLUDE_DIR): Handle TARGET_64BIT_DEFAULT.
	(STANDARD_STARTFILE_PREFIX_1): Likewise.
	* config/i386/unix.h (TARGET_SUBTARGET64_DEFAULT): New.
	* config.build (x86_64-*-mingw*): New host.
	* config.host (x86_64-*-mingw*): New host.
	* config.gcc (x86_64-*-mingw*): New target.
	* gthr-win32.h (__gthread_key_create): Mark dtor unused.

2007-03-30  Richard Henderson  <rth@redhat.com>
	    Kai Tietz  <kai.tietz@onevision.com>

	* c-pragma.c (struct def_pragma_macro_value): New.
	(struct def_pragma_macro): New.
	(pushed_macro_table): New.
	(dpm_hash, dpm_eq): New.
	(handle_pragma_push_macro, handle_pragma_pop_macro): New.
	(init_pragma): Install them.
	* doc/tm.texi (HANDLE_PRAGMA_PUSH_POP_MACRO): New.

2007-03-30  Anatoly Sokolov <aesok@post.ru>

	* config/avr/avr.c (avr_override_options): Clear
	'flag_delete_null_pointer_checks'.

2007-03-30  Paolo Carlini  <pcarlini@suse.de>

	PR c++/26099
	* c-common.h (enum rid): Add RID_HAS_NOTHROW_ASSIGN,
	RID_HAS_NOTHROW_CONSTRUCTOR, RID_HAS_NOTHROW_COPY,
	RID_HAS_TRIVIAL_ASSIGN, RID_HAS_TRIVIAL_CONSTRUCTOR,
	RID_HAS_TRIVIAL_COPY, RID_HAS_TRIVIAL_DESTRUCTOR,
	RID_HAS_VIRTUAL_DESTRUCTOR, RID_IS_ABSTRACT, RID_IS_BASE_OF,
	RID_IS_CONVERTIBLE_TO, RID_IS_CLASS, RID_IS_EMPTY, RID_IS_ENUM,
	RID_IS_POD, RID_IS_POLYMORPHIC, RID_IS_UNION, as
	C++ extensions.
	* doc/extend.texi (Extensions to the C++ Language): Add Type Traits.

2007-03-30  Steven Bosscher  <steven@gcc.gnu.org>

	* regmove.c: Move all of pass_stack_adjustments from here...
	* combine-stack-adj.c: ...to this new file.
	* Makefile.in: Add rules for combine-stack-adj.o.

2007-03-30  Zdenek Dvorak  <dvorakz@suse.cz>

	PR tree-optimization/31383
	* tree-data-ref.c (affine_function_equal_p): Do not require the vectors
	to have the same length.

2007-03-30  Jan Hubicka  <jh@suse.cz>

	PR middle-end/30700
	* dwarf2out.c (reference_to_unused): Ask cgraph for functions
	availablility; add more sanity checking; ask varpool only about
	VAR_DECL.

2007-03-29  Richard Henderson  <rth@redhat.com>

	* unwind-generic.h (_sleb128_t, _uleb128_t): Don't use HAVE_LONG_LONG
	to decide, but __SIZEOF_LONG_LONG__.

2007-03-29  Richard Henderson  <rth@redhat.com>

	* emutls.c (struct __emutls_array): New.
	(emutls_destroy): Use it instead of casting element 0 from void*.
	(__emutls_get_address): Likewise.

2007-03-29  Richard Henderson  <rth@redhat.com>

	* varasm.c (initializer_constant_valid_p): Don't deny
	DECL_DLLIMPORT_P on functions.

	* config/i386/cygming.h: Remove function declarations.
	(SUBTARGET_ENCODE_SECTION_INFO): Don't undef first.
	(ASM_OUTPUT_LABELREF): Remove.
	(COMMON_ASM_OP): Remove.
	(ASM_OUTPUT_COMMON): Remove.
	(ASM_OUTPUT_ALIGNED_DECL_COMMON): New.
	(ASM_DECLARE_OBJECT_NAME): Use i386_pe_maybe_record_exported_symbol.
	(ASM_DECLARE_FUNCTION_NAME): Likewise.
	* config/i386/i386-interix.h (SUBTARGET_ENCODE_SECTION_INFO):
	Rename from TARGET_ENCODE_SECTION_INFO.
	* config/i386/netware.h: Likewise.
	* config/i386/i386-protos.h: Update.
	* config/i386/i386.c (ix86_function_ok_for_sibcall): Turn ifdef
	of TARGET_DLLIMPORT_DECL_ATTRIBUTES into straight if.
	(legitimate_constant_p): Reject dllimports.
	(dllimport_map, get_dllimport_decl): New.
	(legitimize_dllimport_symbol): New.
	(legitimize_address, ix86_expand_move): Use it.
	(TARGET_BINDS_LOCAL_P): Redefine for TARGET_DLLIMPORT_DECL_ATTRIBUTES.
	* config/i386/i386.h (DLL_IMPORT_EXPORT_PREFIX): Remove.
	(SYMBOL_FLAG_DLLIMPORT, SYMBOL_REF_DLLIMPORT_P): New.
	(SYMBOL_FLAG_DLLEXPORT, SYMBOL_REF_DLLEXPORT_P): New.
	* config/i386/predicates.md (constant_call_address_operand): Only
	accept symbols; reject dllimport_p symbols.
	* config/i386/uwin.h (ASM_DECLARE_FUNCTION_NAME): Use
	i386_pe_maybe_record_exported_symbol.
	* config/i386/winnt.c (DLL_IMPORT_PREFIX, DLL_EXPORT_PREFIX): Remove.
	(i386_pe_determine_dllexport_p): Rename from i386_pe_dllexport_p.
	(i386_pe_determine_dllimport_p): Rename from i386_pe_dllimport_p;
	trust the setting of DECL_DLLIMPORT_P.
	(i386_pe_dllexport_name_p, i386_pe_dllimport_name_p): Remove.
	(i386_pe_mark_dllexport, i386_pe_mark_dllimport): Remove.
	(gen_stdcall_or_fastcall_suffix): Return NULL if no change required;
	tidy the argument scanning loop.
	(i386_pe_encode_section_info): Set SYMBOL_FLAG_DLLIMPORT and
	SYMBOL_FLAG_DLLEXPORT in SYMBOL_REF_FLAGS.
	(i386_pe_strip_name_encoding): Remove.
	(i386_pe_binds_local_p): New.
	(i386_pe_strip_name_encoding_full): Use default_strip_name_encoding.
	(i386_pe_output_labelref): Remove.
	(i386_pe_asm_output_aligned_decl_common): New.
	(i386_pe_maybe_record_exported_symbol): Rename from
	i386_pe_record_exported_symbol; check for dllexported symbols.

2007-03-29  Zack Weinberg  <zack@mrtock.ucsd.edu>

	* gengtype.c (oprintf): Mostly revert changes from 2007-03-26;
	add comment explaining why vsnprintf cannot be used.

2007-03-29  Douglas Gregor  <doug.gregor@gmail.com>

	PR tree-optimization/30666
	* tree.c (build_complex_type): When creating type names for DWARF2
	debug info, create TYPE_DECLs for TYPE_NAME instead of
	IDENTIFIER_NODEs.
	(build_common_tree_nodes_2): Use build_complex_type when building
	predefined complex types, to preserve canonical types.

2007-03-29  Steven Bosscher  <steven@gcc.gnu.org>

	* ifcvt.c (struct noce_if_info): Add then_else_reversed field.
	(noce_get_alt_condition): Look at it to determine whether to
	reverse the condition or not.
	(noce_get_condition): Substitute the truth for lies.
	(noce_find_if_block): Set the then_else_reversed field.

2007-03-29  Lars Poeschel <larsi@wh2.tu-dresden.de>

	* config/fr30/fr30.md (movdi): Do not accept immediates as the
	destination of this insn.
	* config/fr30/fr30.c (fr30_move_double): Use emit_move_insn rather
	than calling gen_rtx_SET directly.  Use r0 to hold the value of
	'address + 4' rather than a stack based temporary which can be
	mis-optimized away.

2007-03-29  Andreas Krebbel  <krebbel1@de.ibm.com>

	* config/s390/s390.c (s390_secondary_input_reload_class,
	s390_secondary_output_reload_class): Functions removed.
	(s390_secondary_reload): New function.
	(TARGET_SECONDARY_RELOAD): Target macro defined.
	* config/s390/s390.h (SECONDARY_INPUT_RELOAD_CLASS,
	SECONDARY_OUTPUT_RELOAD_CLASS): Macro definitions removed.
	* config/s390/s390.md ("reload_outti", "reload_outdi",
	"reload_indi", "reload_insi", "reload_out<mode>", "reload_in<mode>",
	"reload_out<mode>"): Expanders removed.
	("reload<mode>_plus", "reload<mode>_nonoffmem_in",
	"reload<mode>_nonoffmem_out"): Expanders added.

2007-03-29  Andreas Krebbel  <krebbel1@de.ibm.com>

	* regmove.c (optimize_reg_copy_1): Don't perform DEST->SRC repair action if
	SRC->DEST replacement failed anyway.

2007-03-28  Mike Stump  <mrs@apple.com>

	* config/darwin9.h (ASM_OUTPUT_ALIGNED_COMMON): Add.
	* config/darwin.h (MAX_OFILE_ALIGNMENT): Fix.
	* config/rs6000/darwin.h (ASM_OUTPUT_ALIGNED_COMMON): Removed #undef.

2007-03-28  Dwarakanath Rajagopal  <dwarak.rajagopal@amd.com>

	* config.gcc: Accept barcelona as a variant of amdfam10.
	* config/i386/i386.c (override_options): Likewise.
	* doc/invoke.texi: Likewise.

2007-03-28  Eric Botcazou  <ebotcazou@adacore.com>

	* tree-dfa.c (get_ref_base_and_extent): Do not expect positive
	offsets for BIT_FIELD_REF and COMPONENT_REF.

2007-03-28  Richard Guenther  <rguenther@suse.de>

	* tree.c (is_global_var): Move ...
	* tree-flow-inline.h (is_global_var): ... here.
	* tree.h (is_global_var): Remove declaration.

2007-03-28  Uros Bizjak  <ubizjak@gmail.com>

	* config/i386/i386.h (X86_TUNE_PROMOTE_HIMODE_IMUL): New tuning
	option.
	(TARGET_TUNE_PROMOTE_HIMODE_IMUL): New define. Use new tuning option.
	* config/i386/i386.c (ix86_tune_features): Initialize new
	tuning option.
	* config/i386/predicates.md (promotable_binary_operator): Use
	TARGET_TUNE_PROMOTE_HIMODE_IMUL.

2007-03-28  Grigory Zagorodnev <grigory_zagorodnev@linux.intel.com>

	PR target/31380
	* config/i386/sse.md (uminv16qi3): Use UMIN instead of UMAX.

2007-03-28  Lars Poeschel <larsi@wh2.tu-dresden.de>

	* config/fr30/fr30.md (movsi_internal): Change destination
	constraint from m to V and add m to the end.

2007-03-28  Christian Bruel  <christian.bruel@st.com>

	* config/sh/sh.md (movsi_i): Fix type attribute.

2007-03-28  Christian Bruel  <christian.bruel@st.com>

	* config/sh/sh.md (movsi_ie): Fix memory constraints attribute length.
	(movsf_ie): Likewise.

2007-03-28  Christian Bruel  <christian.bruel@st.com>

	* config.gcc: Add sh4-300 to multilib.
	* config/sh/t-mlib-sh4-300: New file.

2007-03-28  Andreas Krebbel  <krebbel1@de.ibm.com>

	* config/s390/s390.md ("fix_trunc<mode>di2"): New expander.
	("fix_trunc<DFP:mode>di2_dfp"): New insn definition renamed from
	fix_trunc<mode>di2.
	("fixuns_truncdddi2", "fixuns_trunctddi2"): Use
	fix_trunc<DFP:mode>di2_dfp instead of fix_trunc<mode>di2.
	("fix_truncdfsi2", "fix_truncsfsi2", "fixuns_truncdddi2",
	"fixuns_trunctddi2"): Whitespace fix.

2007-03-28  Kaz Kojima  <kkojima@gcc.gnu.org>

	* config/sh/sh.h (CALL_COOKIE_RET_TRAMP_SHIFT): Move after
	the definition of struct sh_args.
	(CALL_COOKIE_RET_TRAMP, CALL_COOKIE_STACKSEQ_SHIFT,
	CALL_COOKIE_INT_REG_GET): Likewise.

2007-03-28  Steven Bosscher  <steven@gcc.gnu.org>

	* ifcvt.c (cond_exec_find_if_block): Return FALSE if no
	transformations are applied successfully.

2007-03-27  Douglas Gregor  <doug.gregor@gmail.com>

	* tree.c (tree_contains_struct): Permit 512 tree codes.
	* tree.h (tree_contains_struct): Ditto.
	(MAX_TREE_CODES): Ditto.
	(struct tree_base): Make CODE 16 bits, instead of 8 bits. Add
	SPARE member to store remaining padding bits.

2007-03-27  Anatoly Sokolov <aesok@post.ru>

	* config/avr/avr.c (avr_mcu_types): Move at90usb82 device to 'avr4'
	architecture.

2007-03-27  Janis Johnson  <janis187@us.ibm.com>

	* configure.ac: Fix assembler test for powerpc*-linux decimal float.
	* configure: Regenerate.

	* configure: Regenerate using the correct version of autoconf.

2007-03-27  Anatoly Sokolov  <aesok@post.ru>

	* config/avr/avr.c (avr_hard_regno_mode_ok): Disallow QImode in stack
	pointer regs.
	* config/avr/avr.h (REGISTER_NAMES): Rename "__SPL__" and "__SPH__"
	regs to "__SP_L__" and "__SP_H__".

2007-03-27  Richard Guenther  <rguenther@suse.de>

	* tree-dfa.c (get_ref_base_and_extent): Replace bit_offset and
	computations with it with a HOST_WIDE_INT variable.

2007-03-26  Mike Stump  <mrs@apple.com>

	* config/rs6000/darwin.h (DARWIN_MINVERSION_SPEC): Add
	objective-c-header, objective-c++-header and objc++-cpp-output
	support.
	* config/i386/darwin.h (DARWIN_MINVERSION_SPEC): Likewise.

2007-03-26  Richard Henderson  <rth@redhat.com>

	PR target/31361
	* config/i386/i386.c (IX86_BUILTIN_PSLLDQ128, IX86_BUILTIN_PSLLW128,
	IX86_BUILTIN_PSLLD128, IX86_BUILTIN_PSLLQ128, IX86_BUILTIN_PSRAW128,
	IX86_BUILTIN_PSRAD128, IX86_BUILTIN_PSRLW128, IX86_BUILTIN_PSRLD128,
	IX86_BUILTIN_PSRLQ128): New.
	(ix86_init_mmx_sse_builtins): Add them.
	(ix86_expand_builtin): Expand them.
	* config/i386/sse.md (ashr<mode>3, lshr<mode>3, ashl<mode>3): Make
	operand 2 be TImode.
	* config/i386/emmintrin.h (_mm_slli_epi64, _mm_srai_epi16,
	_mm_srai_epi32, _mm_srli_epi16, _mm_srli_epi32,
	_mm_srli_epi64): Mark __B const.
	(_mm_srli_si128, _mm_srli_si128): Fix disabled inline versions.
	(_mm_sll_epi16, _mm_sll_epi32, _mm_sll_epi64, _mm_sra_epi16,
	_mm_sra_epi32, _mm_srl_epi16, _mm_srl_epi32, _mm_srl_epi64): Use
	new two-vector shift builtins.

2007-03-26  Ian Lance Taylor  <iant@google.com>

	PR tree-optimization/31345
	* tree-vrp.c (extract_range_from_binary_expr): Turn ranges like
	[+INF, +INF(OVF)] into VARYING.

2007-03-26  Zack Weinberg  <zackw@panix.com>

	* gengtype-parse.c: New file.
	* gengtype-yacc.y: Delete.
	* gengtype-lex.l: Don't include gengtype-yacc.h.
	Define YY_DECL and yyterminate appropriately for recursive
	descent parser.  yylval is now a string out-parameter to yylex.
	(HWS, EOID): New shorthand.
	(IWORD): Add a couple more types.
	(yylex): Add a setup stanza.  Remove the complex rules for
	detecting GTY'ed types and typedefs; replace with simple
	keyword detectors.  Adjust everything for the changed
	definition of yylval.  Ignore all pp-directives, not just #define.
	(yyerror): Delete.
	(parse_file): Rename yybegin; do not call yyparse.
	(yyend): New.
	* gengtype.c (xasprintf): Export again.
	(this_file): New.  Use everywhere __FILE__ was being used.
	(get_lang_bitmap): Special case types defined in gengtype.c.
	(do_typedef, new_structure): Suppress definition of certain types.
	(new_structure): Improve diagnostics of duplicate definitions.
	Make sure location_s is associated with input.h.
	(nreverse_pairs, define_location_structures): New functions.
	(main): Improve tagging of kludge types.  Remove old kludges
	for input.h types; use define_location_structures.
	* gengtype.h: Update prototypes.  Define token codes here.
	* Makefile.in: Remove all references to gengtype-yacc.
	Add rules for gengtype-parse.o.  Adjust rules for gengtype-lex.o
	and gengtype.
	* bitmap.h (struct bitmap_head_def): Coalesce definitions,
	add GTY((skip)) to the field that's only conditionally there.
	* doc/install.texi: Document that Bison is no longer required
	unless building treelang.

	* gengtype.c: Don't include gtyp-gen.h.
	(srcdir): Declare here.
	(base_files, lang_dir_names): Allocate dynamically.
	(gt_files, num_gt_files, num_lang_dirs): New globals.
	(measure_input_list, read_input_line, read_input_list)
	(set_lang_bitmap): New functions.
	(get_base_file_bitmap): Rename get_lang_bitmap and drastically
	simplify, relying on read_input_list to set up the bitmaps.
	(main): Arguments are no longer unused.  Check for correct number
	of command line arguments, set srcdir and srcdir_len, then call
	read_input_list, before doing anything else.  No need to worry
	about duplicates in main loop.
	* configure.ac: Simplify the calculation of all_gtfiles.
	Put language tags in there.  Don't set or substitute
	all_gtfiles_files_langs or all_gtfiles_files_frags.
	* Makefile.in: Revamp the way gengtype is invoked, now that it
	takes a file on its command line with a much simpler format.
	Remove or replace with gtyp-input.list all references to gtyp-gen.h.
	(GTFILES): Remove duplicates and C source files.
	* c-config-lang.in, cp/config-lang.in, objc/config-lang.in
	* objcp/config-lang.in: Add c-pragma.h to gtfiles.
	* configure: Regenerate.

	* gengtype.h: Remove all type definitions to gengtype.c; leave
	only definitions of options_p, type_p, and pair_p as opaque
	pointers.  Update prototypes.
	* gengtype.c: Many type definitions moved here from gengtype.h.
	Consolidate type definitions at the top of the file.
	(xvasprintf): Delete.
	(xasprintf): Make static.
	(create_nested_pointer_option): Add 'next' parameter.
	(create_field_all, create_field_at): New functions.
	(create_field): Now a thin wrapper around create_field_all.
	(create_optional_field): Rename create_optional_field_ and add
	line argument.  Original name is now a macro which supplies
	__LINE__.
	(oprintf): Use vsnprintf directly.
	(close_output_files): Use fatal rather than perror/exit.
	(note_def_vec, note_def_vec_alloc): Use create_field_at.
	(main): Set progname.  Don't use exit.
	* gengtype-yacc.y (struct_fields): Use create_field_at.
	(option, optionseqopt): Delete.
	(optionseq): Consolidate productions from option here so we
	can use the first argument to create_option.

	* gengtype-lex.l: Distinguish unions from structures in the
	token type.  Don't call find_structure; return the tag as a string.
	* gengtype-yacc.y: Add new token types ENT_TYPEDEF_UNION and ENT_UNION.
	Type of these, ENT_TYPEDEF_STRUCT, and ENT_STRUCT is string.
	Reorganize typedef_struct production accordingly.
	Use create_nested_ptr_option.
	* gengtype.c (create_nested_ptr_option): New function.
	* gengtype.h: Declare it.

	* gengtype.h (struct type): Replace 'sc' with boolean, scalar_is_char.
	(string_type): Don't declare.
	(do_scalar_typedef): Declare.
	(create_scalar_type): Update prototype.
	* gengtype.c (string_type): Make static.
	(scalar_nonchar, scalar_char): New.
	(do_scalar_typedef): Export.  Always use scalar_nonchar for the type.
	(resolve_typedef): Use scalar_nonchar for error recovery.
	(create_scalar_type): Remove name_len field.  Return scalar_char
	or scalar_nonchar as appropriate.
	(adjust_field_type): Look at scalar_is_char boolean to decide whether
	to use string_type.
	(throughout): Use scalar_nonchar instead of calling create_scalar_type,
	whenever possible.
	(main): Initialize scalar_char and scalar_nonchar before calling
	gen_rtx_next.
	* gengtype-lex.l: Adjust for removal of second argument to
	create_scalar_type.  Use yylval.s instead of yylval.t when
	returning SCALAR.
	* gengtype-yacc.y: Type of SCALAR is string.  Call
	create_scalar_type from type:SCALAR rule.  Adjust for removal of
	second argument to create_scalar_type.

	* vec.h: Remove all #if IN_GENGTYPE blocks.
	Add comment saying that changes may require adjustments to gengtype.
	* gengtype.c: Don't include coretypes.h or tm.h.
	Add comment to inclusion of errors.h.
	(note_def_vec, note_def_vec_alloc): New functions.
	* gengtype.h: Declare new functions.
	* gengtype-lex.l: Don't include coretypes.h.
	(YY_INPUT, macro_input, push_macro_expansion, mangle_macro_name):
	Delete.
	(update_lineno): Remove unnecessary prototype.
	(DEF_VEC_* rules): Simplify using note_def_vec / note_def_vec_alloc.
	(VEC rule): Just return VEC_TOKEN.
	* gengtype-yacc.y (VEC_TOKEN): New token type.
	(type): Add a production for VEC(a,b).
	* Makefile.in: Update dependencies.

	* gengtype-lex.l: Remove rules for parsing pointer-to-function
	typedefs that use the old PARAMS macro.

	* gengtype-lex.l: Remove all rules and states relating to yacc
	input files.
	* gengtype-yacc.y: Similarly.
	* gengtype.c (note_yacc_type): Delete function.
	* gengtype.h: Update prototypes.

2007-03-26  Joseph Myers  <joseph@codesourcery.com>

	* tree-pretty-print.c (dump_generic_node): Report precision of
	unnamed integer types.

2007-03-26  Steven Bosscher  <steven@gcc.gnu.org>

	* ifcvt.c (noce_try_store_flag_constants): Don't check
	no_new_pseudos here.
	(noce_try_store_flag_constants): Don't check no_new_pseudos.
	(noce_try_addcc, noce_try_store_flag_mask, noce_try_cmove_arith,
	noce_try_cmove_arith, noce_try_minmax, noce_try_abs,
	noce_try_sign_mask): Likewise.
	(if_convert): Check no_new_pseudos here.

	(cond_exec_process_if_block, noce_process_if_block, find_if_block):
	Remove prototypes.
	(struct noce_if_info): Add then_bb, else_bb, join_bb members.
	(noce_get_condition): Handle new then_else_reversed argument.
	(noce_init_if_info): Remove, fold into noce_find_if_block.
	(noce_process_if_block): Take a struct noce_if_info as the
	argument.  Don't set up one based on ce_if_info.  Update pointer
	references accordingly.
	(cond_move_process_if_block): Likewise.
	(process_if_block): Removed.
	(find_if_block): Removed.  Move functionality two new functions,
	noce_find_if_block and cond_exec_find_if_block.
	(noce_find_if_block): New function.  Be aware of IF-THEN-JOIN
	blocks and the symmetric IF-ELSE-JOIN case.
	(cond_exec_find_if_block): Also new function mostly based on old
	find_if_block and process_if_block.
	(find_if_header): Replace find_if_block call with separately
	guarded calls to noce_find_if_block and cond_exec_find_if_block.
	(find_cond_trap): Update noce_get_condition call.
	(dead_or_predicable): Likewise.

2007-03-26  Jakub Jelinek  <jakub@redhat.com>

	* config/i386/i386.c (IX86_BUILTIN_CMPNEPD, IX86_BUILTIN_CMPNESD):
	Remove.
	(IX86_BUILTIN_PSLLW128, IX86_BUILTIN_PSLLD128, IX86_BUILTIN_PSLLQ128,
	IX86_BUILTIN_PSRAW128, IX86_BUILTIN_PSRAD128, IX86_BUILTIN_PSRLW128,
	IX86_BUILTIN_PSRLD128, IX86_BUILTIN_PSRLQ128): Remove.
	(ix86_init_mmx_sse_builtins): Remove v8hi_ftype_v8hi_v2di and
	v4si_ftype_v4si_v2di.  Remove __builtin_ia32_psllw128,
	__builtin_ia32_pslld128, __builtin_ia32_psllq128,
	__builtin_ia32_psrlw128, __builtin_ia32_psrld128,
	__builtin_ia32_psrlq128, __builtin_ia32_psraw128 and
	__builtin_ia32_psrad128 builtins.

2007-03-26  Uros Bizjak  <ubizjak@gmail.com>

	* reg-stack.c (replace_reg): Use IN_RANGE macro in gcc_assert().
	* config/i386/constraints.md
	(define_constraint "I"): Use IN_RANGE macro.
	(define_constraint "J"): Ditto.
	(define_constraint "K"): Ditto.
	(define_constraint "M"): Ditto.
	(define_constraint "N"): Ditto.
	(define_constraint "O"): Ditto.
	* config/i386/predicates.md
	(define_predicate "register_no_elim_operand"): Use IN_RANGE macro.
	(define_predicate "const_0_to_3_operand"): Ditto.
	(define_predicate "const_0_to_7_operand"): Ditto.
	(define_predicate "const_0_to_15_operand"): Ditto.
	(define_predicate "const_0_to_63_operand"): Ditto.
	(define_predicate "const_0_to_255_operand"): Ditto.
	(define_predicate "const_1_to_31_operand"): Ditto.
	(define_predicate "const_2_to_3_operand"): Ditto.
	(define_predicate "const_4_to_7_operand"): Ditto.

2007-03-25  David Edelsohn  <edelsohn@gnu.org>

	* config/rs6000/rs6000.c (rs6000_emit_prologue): Always clobber LR
	in SImode for save_world.
	* config/rs6000/altivec.md (save_world, restore_world): Convert to
	LR hard reg.

2007-03-25  Dorit Nuzman  <dorit@il.ibm.com>

	PR tree-optimization/30784
	* fold-const.c (fold_ternary): Handle CONSTRUCTOR in case
	BIT_FIELD_REF.

2007-03-25  Revital Eres  <eres@il.ibm.com>

	* tree-if-conv.c (if_convertible_gimple_modify_stmt_p):
	  Fold movement_possibility function into it.

2007-03-25  David Edelsohn  <edelsohn@gnu.org>

	* config/rs6000/darwin.md (load_macho_picbase): Ignore operand 0.
	(load_macho_picbase_{si,di}): Convert to LR hard reg.
	(call_indirect_nonlocal_darwin64): Same.
	(call_nonlocal_darwin64): Same.
	(call_value_indirect_nonlocal_darwin64): Same.
	(call_value_nonlocal_darwin64): Same.
	(sibcall_nonlocal_darwin64): Same.
	(sibcall_value_nonlocal_darwin64): Same.
	(sibcall_symbolic_64): Same.
	(sibcall_value_symbolic_64): Same.
	* config/rs6000/rs6000.c (rs6000_legitimize_tls_address): Remove
	LR pseudo.
	(rs6000_emit_load_toc_table): Same.
	* config/rs6000/altivec.md (restore_world): Convert to LR hard reg.
	* config/rs6000/rs6000.md (mulh_call): Convert to LR hard reg.
	(mull_call): Same.
	(divss_call): Same.
	(divus_call): Same.
	(quoss_call): Same.
	(quous_call): Same.
	(load_toc_v4_pic_si): Same
	(load_toc_v4_PIC_1): Same.
	(load_toc_v4_PIC_1b): Same.
	(call_indirect_aix{32,64}): Same.
	(call_value_indirect_aix{32,64}): Same.
	(call): Same.
	(call_value): Same.
	(call_local{32,64}): Same.
	(call_value_local{32,64}): Same.
	(call_indirect_nonlocal_aix{32,64}): Same.
	(call_nonlocal_aix{32,64}): Same.
	(call_value_indirect_nonlocal_aix{32,64}): Same.
	(call_value_nonlocal_aix{32,64}): Same.
	(call_indirect_nonlocal_sysv<mode>): Same.
	(call_nonlocal_sysv<mode>): Same.
	(call_value_indirect_nonlocal_sysv<mode>): Same.
	(call_value_nonlocal_sysv<mode>): Same.
	(sibcall): Same.
	(sibcall_local{32,64}): Same.
	(sibcall_value_local{32,64}): Same.
	(sibcall_nonlocal_aix{32,64}): Same.
	(sibcall_value_nonlocal_aix{32,64}): Same.
	(sibcall_nonlocal_sysv<mode>): Same.
	(sibcall_value): Same.
	(sibcall_value_nonlocal_sysv<mode>): Same.

2007-03-24  Paul Brook  <paul@codesourcery.com>

	* config/arm/lib1funcs.asm (div0): Use ARM_FUNC_START and do_push.
	* config/arm/linux-eabi.h: Remove legacy syscall hack.

2007-03-24  Richard Henderson  <rth@redhat.com>

	* config/ia64/constraints.md: New file.
	* config/ia64/predicates.md: Replace CONST_OK_FOR_? with
	satisfies_constraint_?.
	* config/ia64/ia64.c (ia64_move_ok, ia64_legitimate_constant_p,
	ia64_reload_gp, spill_restore_mem, ia64_expand_prologue,
	ia64_expand_epilogue, ia64_split_return_addr_rtx, ia64_rtx_costs,
	ia64_output_mi_thunk): Likewise.
	(ia64_const_ok_for_letter_p): Remove.
	(ia64_const_double_ok_for_letter_p): Remove.
	(ia64_extra_constraint): Remove.
	* config/ia64/ia64.h (REG_CLASS_FROM_LETTER): Remove.
	(CONST_OK_FOR_I, CONST_OK_FOR_J, CONST_OK_FOR_K, CONST_OK_FOR_L,
	CONST_OK_FOR_M, CONST_OK_FOR_N, CONST_OK_FOR_O, CONST_OK_FOR_P,
	CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_G,
	CONST_DOUBLE_OK_FOR_LETTER_P, EXTRA_CONSTRAINT,
	EXTRA_MEMORY_CONSTRAINT): Remove.
	* config/ia64/ia64.md: Include constriants.md.  Replace
	CONST_OK_FOR_? with satisfies_constraint_?.

2007-03-23  Michael Meissner  <michael.meissner@amd.com>
	    H.J. Lu  <hongjiu.lu@intel.com>

	* config/dfp-bit.h (DPD_BID_NAME): New macro to give either the
	DPD or BID name.
	(name macros): Use DPD_BID_NAME to convert names properly.

	* optabs.c (DECIMAL_PREFIX): Prefix string to use for the current
	decimal floating point format.
	(init_floating_libfuncs): Change decimal functions so that they
	have a "bid_" prefix if the decimal system uses the BID format,
	and "dpd_" prefix if the decimal system uses the DPD format.
	(init_interclass_conv_libfuncs): Ditto.
	(init_intraclass_conv_libfuncs): Ditto.

	* config.in (ENABLE_DECIMAL_BID_FORMAT): New macro to say we are
	using the BID format.

	* configure.ac (ENABLE_DECIMAL_BID_FORMAT): Set to 1/0 to say
	whether we are using the BID decimal format.
	* configure: Regenerate.

	* c-cppbuiltin.c (c_cpp_builtins): Define __STDC_WANT_DEC_FP__ if
	the compiler has decimal floating point enabled.  Define
	__DECIMAL_BID_FORMAT__ if BID decimal floating point is used
	instead of DPD.

	* config.in (ENABLE_DECIMAL_BID_FORMAT): New macro to say we are
	using the BID format.

	* configure.ac (ENABLE_DECIMAL_BID_FORMAT): Set to 1/0 to say
	whether we are using the BID decimal format.
	* configure: Regenerate.

	* c-cppbuiltin.c (c_cpp_builtins): Define __STDC_WANT_DEC_FP__ if
	the compiler has decimal floating point enabled.  Define
	__DECIMAL_BID_FORMAT__ if BID decimal floating point is used
	instead of DPD.

	* doc/install.texi (--enable-decimal-float): Document BID and DPD
	options, and that it is enabled for i386/x86_64 systems.

	* Makefile.in (enable_decimal_float): New.
	(DECNUMFMT): New.
	(DECNUMINC): Add  -I$(DECNUMFMT).
	(DECNUM_H): Mov decimal32.h, decimal64.h and decimal128.h
	to $(DECNUMFMT) from $(DECNUM).

	* configure.ac: Support * --enable-decimal-float={no,yes,bid,dpd}.
	Substitute enable_decimal_float.
	* configure: Regenerated.

	PR other/30529
	* config/dfp-bit.c (__dec_byte_swap): Use uint32_t instead of
	unsigned long.

	* configure.ac: Enable decimal float for x86_64-*-linux*.
	* configure: Regenerated.

	PR other/30530
	* dfp.c (decimal_real_arithmetic): Use decimal128FlipSign and
	decimal128ClearSign to flip and clear the sign bit in decimal128.
	(decimal_real_maxval): Set decimal128SetSign to set the sign
	bit in decimal128.

2007-03-23  Ian Lance Taylor  <iant@google.com>

	* fold-const.c (fold_binary): Correct warning for X - c >= X.

2007-03-23  Ian Lance Taylor  <iant@google.com>

	* tree-dump.c (dump_files): Correct comment.

2007-03-23  Ian Lance Taylor  <iant@google.com>

	* tree-vrp.c (operand_less_p): Ignore fold overflow warnings.

2007-03-23  Steven Bosscher  <steven@gcc.gnu.org>

	* tracer.c (tracer): Don't take FLAGS argument.  Assert we are
	in cfglayout mode.  Don't go into and out of cfglayout mode.
	Link the blocks in the order of the constructed traces.
	(rest_of_handle_tracer): Adjust call to tracer.
	* loop-init.c (rtl_loop_init): Assert we are in cfglayout mode.
	Don't go into cfglayout mode.
	(rtl_loop_done): Don't go out of cfglayout mode.
	* cfglayout.c (relink_block_chain): New function, split out from...
	(fixup_reorder_chain): ...here.  Remove redundant checking.
	(cfg_layout_finalize): Don't clear the header, footer, and aux
	fields here, move the code to do so to relink_block_chain.  Likewise
	for free_original_copy_tables.
	* rtl.h (tracer): Update prototype.
	* bb-reorder.c (reorder_basic_blocks): Don't take FLAGS argument.
	Assert we are in cfglayout mode.  Don't go into and out of cfglayout
	mode.  Use relink_block_chain to serialize the CFG according to the
	new basic block order.  Move targetm.cannot_modify_jumps_p check from
	here...
	(gate_handle_reorder_blocks): ...to here.
	(duplicate_computed_gotos): Move targetm.cannot_modify_jumps_p check
	from here...
	(gate_duplicate_computed_gotos): ...to here.
	(rest_of_handle_reorder_blocks): Don't see if anything has changed,
	something always changes when going into and out of cfglayout mode.
	Perform an expensive cfg cleanup while going into cfglayout mode.
	Always update liveness information on HAVE_conditional_execution
	targets.  Reserialize the basic blocks and go out of cfglayout mode.
	* reg-stack.c: Include cfglayout.h.
	(rest_of_handle_stack_regs): Go into and out of cfglayout mode around
	the call to reorder_basic_blocks.
	* basic-block.h (reorder_basic_blocks): Update prototype.
	(relink_block_chain): New prototype.
	* passes.c (pass_outof_cfg_layout_mode): Move after cse2.

2007-03-23  Joseph Myers  <joseph@codesourcery.com>

	* config/mips/mips.md (type, hazard, *movdi_32bit,
	*movdi_gp32_fp64, *movdi_64bit, *movsi_internal, movcc,
	*movhi_internal, *movqi_internal, *movsf_hardfloat,
	*movdf_hardfloat_64bit, *movdf_hardfloat_32bit, *movdf_softfloat,
	movv2sf_hardfloat_64bit, load_df_low, load_df_high, store_df_high,
	mthc1, mfhc1): Change xfer instruction type to mfc and mtc, as
	applicable.
	(movcc): Change first xfer to multi.
	* config/mips/24k.md, config/mips/4100.md, config/mips/4300.md,
	config/mips/5000.md, config/mips/5400.md, config/mips/5500.md,
	config/mips/5k.md, config/mips/7000.md, config/mips/9000.md,
	config/mips/generic.md: Change reservations using "xfer" to use
	"mfc,mtc".
	* config/mips/sb1.md (ir_sb1_mtxfer): Use "mtc" instead of
	using match_operand.
	(ir_sb1_mfxfer): Use "mfc" instead of using match_operand.
	* config/mips/sr71k.md (ir_sr70_xfer_from): Use "mfc" instead of
	examining mode.
	(ir_sr70_xfer_to): Use "mtc" instead of examining mode.

2007-03-22  Richard Henderson  <rth@redhat.com>

	* config/i386/i386.c: Remove unnecessary function declarations.
	Move targetm definition, and all related macros, to the end of
	the file.  Resort some functions to put definitions before uses.
	(ix86_attribute_table): Make static.  Move to end of file.
	(ix86_gimplify_va_arg): Make static.

2007-03-22  Richard Henderson  <rth@redhat.com>

	* config/i386/i386.c (ix86_function_regparm): Early exit for 64-bit;
	don't increase local_regparm with force_align_arg_pointer check.
	(ix86_function_sseregparm): Assert 32-bit.
	(type_has_variadic_args_p): New.
	(ix86_return_pops_args): Early exit for 64-bit.  Reindent; use
	type_has_variadic_args_p.
	(ix86_function_arg_regno_p): Use == 0 instead of ! test for eax.
	(init_cumulative_args): Remove TARGET_DEBUG_ARG.  Remove zero_cum;
	use memset instead.  Do maybe_vaarg check first; skip attribute
	tests if true; skip attribute tests for 64-bit.
	(construct_container): Remove TARGET_DEBUG_ARG.
	(function_arg_advance_32, function_arg_advance_64): Split out ...
	(function_arg_advance): ... from here.
	(function_arg_32, function_arg_64): Split out ...
	(function_arg): ... from here.
	(ix86_pass_by_reference): Tidy.
	(ix86_function_value_regno_p): Rearrange w/ switch on regno.
	(function_value_32): New, from parts of ix86_function_value
	and ix86_value_regno.
	(function_value_64): New, from parts of ix86_function_value
	and ix86_libcall_value.
	(ix86_function_value_1): New.
	(ix86_function_value, ix86_libcall_value): Use it.
	(return_in_memory_32, return_in_memory_64): Split out ...
	(ix86_return_in_memory): ... from here.
	(ix86_struct_value_rtx): Skip for 64-bit.
	(ix86_libcall_value, ix86_value_regno): Remove.
	(setup_incoming_varargs_64): Split out ...
	(ix86_setup_incoming_varargs): ... from here.
	(ix86_va_start): Remove TARGET_DEBUG_ARG.
	(legitimate_address_p, legitimize_address): Remove TARGET_DEBUG_ADDR.
	* config/i386/i386-protos.h (ix86_function_value): Remove.
	* config/i386/i386.opt (TARGET_DEBUG_ADDR, TARGET_DEBUG_ARG): Remove.

2007-03-22  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

	PR other/23572
	* c-lex.c (interpret_float): On overflow, emit pedantic warning if
	infinities not supported, otherwise emit warning if -Woverflow. On
	underflow, emit warning if -Woverflow.
	* real.c (real_from_string): Return -1 if underflow, +1 if overflow
	and 0 otherwise.
	* real.h (real_from_string): Update declaration

2007-03-22  Kai Tietz  <kai.tietz@onevision.com>
	    Richard Henderson  <rth@redhat.com>

	* defaults.h (OUTGOING_REG_PARM_STACK_SPACE): Provide default.
	* calls.c (compute_argument_block_size, expand_call,
	emit_library_call_value_1): Don't ifdef OUTGOING_REG_PARM_STACK_SPACE.
	* expr.c (block_move_libcall_safe_for_call_parm): Likewise.
	* function.c (STACK_DYNAMIC_OFFSET): Likewise.
	* doc/tm.texi (OUTGOING_REG_PARM_STACK_SPACE): Update.
	* config/alpha/unicosmk.h, config/bfin/bfin.h, config/iq2000/iq2000.h,
	config/mips/mips.h, config/mn10300/mn10300.h, config/mt/mt.h,
	config/pa/pa.h, config/rs6000/rs6000.h, config/score/score.h,
	config/spu/spu.h, config/v850/v850.h (OUTGOING_REG_PARM_STACK_SPACE):
	Set to 1.

2007-03-22  Joseph Myers  <joseph@codesourcery.com>

	* c-incpath.c (add_sysroot_to_chain): New.
	(merge_include_chains): Add sysroot argument.  Call
	add_sysroot_to_chain if sysrooted.
	(register_include_chains): Update call to merge_include_chains.
	* doc/cppopts.texi: Document use of '=' in include directory
	arguments.

2007-03-22  Uros Bizjak  <ubizjak@gmail.com>

	* config/i386/i386.md (cmp<mode>): Rename from cmpsf and cmpdf.
	Macroize expander using SSEMODEF mode macro.  Use SSE_FLOAT_MODE_P.
	(*cmpfp_<mode>): Rename from *cmpfp_sf and *cmpfp_df. Macroize
	insn pattern using X87MODEF12 mode macro.

2007-03-21  Seongbae Park <seongbae.park@gmail.com>

	* regmove.c (regmove_optimize): Use reg_mentioned_p
	instead of reg_overlap_mentioned_p for DST.

2007-03-21  Mike Stump  <mrs@apple.com>

	* c.opt: Fixup for Objective-C/C++.

2007-03-21  Steve Ellcey  <sje@cup.hp.com>

	* explow.c (convert_memory_address): Fold memory reference when
	POINTERS_EXTEND_UNSIGNED < 0

2007-03-21  Richard Henderson  <rth@redhat.com>

	PR target/31245
	* config/i386/emmintrin.h (__m128i, __m128d): Mark may_alias.
	* config/i386/mmintrin.h (__m64): Likewise.
	* config/i386/xmmintrin.h (__m128): Likewise.

2007-03-21  Richard Sandiford  <richard@codesourcery.com>

	* config/vxworks.h (VXWORKS_ADDITIONAL_CPP_SPEC): Remove -D options.
	(VXWORKS_OS_CPP_BUILTINS): Define.
	* config/i386/vxworks.h (VXWORKS_CPU_DEFINE): Fold into...
	(TARGET_OS_CPP_BUILTINS): ...here.  Use VXWORKS_OS_CPP_BUILTINS.

2007-03-21  Richard Sandiford  <richard@codesourcery.com>

	* rtl.h (constant_pool_reference_p): Delete.
	(find_constant_src): Declare.
	* rtlanal.c (find_constant_src): New function.
	* simplify-rtx.c (constant_pool_reference_p): Delete.
	* config/i386/i386.md: Use find_constant_src instead of
	constant_pool_reference_p/avoid_constant_pool_reference pairs.

2007-03-21  Richard Sandiford  <richard@codesourcery.com>

	* doc/invoke.texi (-fpie, -fPIE): Document __pie__ and __PIE__.
	* c-cppbuiltin.c (c_cpp_builtins): Define them.

2007-03-20  Mark Mitchell  <mark@codesourcery.com>

	* config/arm/elf.h (TARGET_ASM_DESTRUCTOR): Define.
	* config/arm/arm.c (arm_elf_asm_cdtor): New function.
	(arm_elf_asm_constructor): Use it.
	(arm_elf_asm_destructor): New function.

2007-03-20  Bernd Schmidt  <bernd.schmidt@analog.com>

	* jump.c (mark_jump_label): Treat SEQUENCE specially.

2007-03-20  Nathan Sidwell  <nathan@codesourcery.com>

	* config/vxlib.c (tls_delete_hook): Use TCB for kernel tasks.

2007-03-19  Andrew Haley  <aph@redhat.com>

	PR tree-optimization/31264
	* tree-vrp.c (register_edge_assert_for_1): Don't look though
	VIEW_CONVERT_EXPRs.

2007-03-19  Paolo Bonzini  <bonzini@gnu.org>

	PR rtl-optimization/30907
	* fwprop.c (forward_propagate_into): Never propagate inside a loop.
	(fwprop_init): Always call loop_optimizer_initialize.
	(fwprop_done): Always call loop_optimizer_finalize.
	(fwprop): We always have loop info now.
	(gate_fwprop_addr): Remove.
	(pass_fwprop_addr): Use gate_fwprop as gate.

	PR rtl-optimization/30841
	* df-problems.c (df_ru_local_compute, df_rd_local_compute,
	df_chain_alloc): Call df_reorganize_refs unconditionally.
	* df-scan.c (df_rescan_blocks, df_reorganize_refs): Change
	refs_organized to refs_organized_size.
	(df_ref_create_structure): Use refs_organized_size instead of
	bitmap_size if refs had been organized, and keep refs_organized_size
	up-to-date.
	* df.h (struct df_ref_info): Change refs_organized to
	refs_organized_size.
	(DF_DEFS_SIZE, DF_USES_SIZE): Use refs_organized_size instead of
	bitmap_size.

2007-03-19  Mark Mitchell  <mark@codesourcery.com>

	* except.c (output_function_exception_table): Do not reference the
	EH personality routine for functions that do not require an
	exception table.

2007-03-20  Jakub Jelinek  <jakub@redhat.com>

	PR c/30762
	* c-typeck.c (convert_for_assignment): Call comptypes for
	RECORD_TYPE or UNION_TYPE.

	PR inline-asm/30505
	* reload1.c (reload): Do invalid ASM checking after
	cleanup_subreg_operands.

2007-03-19  Jeff Law  <law@redhat.com>

	* tree-cfg.c (find_taken_edge): Tighten conditions for
	optimizing computed gotos.

2007-03-19  Michael Matz  <matz@suse.de>

	* builtins.c (expand_builtin_sync_operation,
	expand_builtin_compare_and_swap,
	expand_builtin_lock_test_and_set): Care for extending CONST_INTs
	correctly.

	* config/i386/sync.md (sync_double_compare_and_swapdi_pic,
	sync_double_compare_and_swap_ccdi_pic): Use "SD" as constraint
	for operand 3.

2007-03-19  Andreas Krebbel  <krebbel1@de.ibm.com>

	* doc/tm.texi: Add brackets around the return type of
	TARGET_SECONDARY_RELOAD.

2007-03-19  Andrew Pinski  <andrew_pinski@playstation.sony.com>
	Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/31254
	* tree-ssa-forwprop.c (forward_propagate_addr_expr_1):
	Use handled_component_p () where appropriate.  Continue
	propagating into the rhs if we propagated into an INDIRECT_REF
	on the lhs.

2007-03-19  Andreas Krebbel  <krebbel1@de.ibm.com>

	* config/s390/s390.md (op_type attribute): RRR instruction type added.
	(FP, DFP, SD_SF, DD_DF, TD_TF): New mode macros.
	(xde, xdee): Mode attributes adjusted to support DFP modes.
	(RRer, f0, op1, Rf, bt, bfp, HALF_TMODE): New mode attributes added.
	("cmp<mode>", "*cmp<mode>_css_0", "*cmp<mode>_ccs", TF move splitters,
	DF move splitters, "floatdi<mode>2", "add<mode>3", "*add<mode>3",
	"*add<mode>3_cc", "*add<mode>3_cconly", "sub<mode>3", "*sub<mode>3",
	"*sub<mode>3_cc", "*sub<mode>3_cconly", "mul<mode>3", "*mul<mode>3",
	"div<mode>3", "*div<mode>3", "*neg<mode>2_nocc", "*abs<mode>2_nocc",
	"*negabs<mode>2_nocc", "copysign<mode>3"): Adjusted to support DFP
	numbers.
	("*movtf_64", "*movtf_31", "*movdf_64dfp", "*movdf_64", "*movdf_31",
	"movsf"): Insn definitions removed.
	("*mov<mode>_64", "*mov<mode>_31", "mov<mode>", "*mov<mode>_64dfp",
	"*mov<mode>_64", "*mov<mode>_31", "fix_trunc<DFP:mode>di2",
	"trunctddd2", "truncddsd2", "extendddtd2", "extendsddd2"): Insn
	definitions added.
	("fixuns_truncdddi2", "fixuns_trunctddi2", "mov<mode>",
	"reload_in<mode>", "reload_out<mode>"): Expander added.
	("movtf", "movdf", "reload_outtf", "reload_outdf", "reload_intf"):
	Expander removed.

2007-03-19  Andreas Krebbel  <krebbel1@de.ibm.com>

	* config/s390/s390.md: Only non-functional changes.  Renamed
	FPR mode macro to BFP all over the file.

2007-03-19  Andreas Krebbel  <krebbel1@de.ibm.com>

	* config/s390/s390.md (UNSPEC_COPYSIGN): New constant.
	(op_type attribute): RRF instruction type added.
	(fT0): New mode attribute.
	("*movdi_64dfp", "*movdf_64dfp", "*neg<mode>2_nocc", "*abs<mode>2_nocc",
	"*negabs<mode>2_nocc", "copysign<mode>3"): Insn definitions added.
	* config/s390/s390.h (SECONDARY_MEMORY_NEEDED): Due to a new instruction
	no secondary memory is needed when moving DFmode values between GPRs
	and FPRs.

2007-03-19  Andreas Krebbel  <krebbel1@de.ibm.com>

	* config/s390/s390.opt ("mhard-float", "msoft-float"): Bit value
	inverted and documentation adjusted.
	("mhard-dfp", "msoft-dfp"): New options.
	* config/s390/s390.c (s390_handle_arch_option): New architecture
	switch: z9-ec.
	(override_options): Sanity checks for the new options added.
	* config.gcc: New architecture switch: z9-ec.
	* config/s390/s390.h (processor_flags): PF_DFP added.
	(TARGET_CPU_DFP, TARGET_DFP): Macro definitions added.
	(TARGET_DEFAULT): Due to the s390.opt changes hard float is enabled
	when the bit is NOT set so remove it from the defaults.

2007-03-19  Andreas Krebbel  <krebbel1@de.ibm.com>

	* genemit.c (main): Print include statement for dfp.h.
	* dfp.h (decimal_real_arithmetic): Hide prototype if tree_code enum
	is not available.

2007-03-19  Hans-Peter Nilsson  <hp@axis.com>

	* config/cris/t-elfmulti (EXTRA_MULTILIB_PARTS): Do not define here.

2007-03-19  Kaz Kojima  <kkojima@gcc.gnu.org>

	PR target/31022
	* config/sh/sh.c (sh_adjust_cost): Use the result of single_set
	instead of PATTERN.

2007-03-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

	* pa.c (output_deferred_plabels, output_bb, output_millicode_call,
	attr_length_call, output_call, output_indirect_call): Cleanup
	formatting of targetm calls.

2007-03-19  Hans-Peter Nilsson  <hp@axis.com>

	* config/cris/cris.h (HANDLE_PRAGMA_PACK_PUSH_POP): Define to 1.

2007-03-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

	* pa.md: Add fpstore_load and store_fpload instruction types.  Provide
	reservation, bypass and anti-bypass descriptions for these instructions.
	Update move patterns.
	* pa.c (hppa_fpstore_bypass_p): Check for both TYPE_FPSTORE_LOAD and
	TYPE_FPSTORE.

2007-03-18  Dorit Nuzman  <dorit@il.ibm.com>

	* tree-vect-transform.c (get_initial_def_for_induction): Replace
	GET_MODE_NUNITS with TYPE_VECTOR_SUBPARTS.
	(get_initial_def_for_reduction): Likewise.

2007-03-16  Daniel Berlin  <dberlin@dberlin.org>

	Fix PR tree-optimization/29922
	* tree-ssa-pre.c (bb_bitmap_sets): Remove RVUSE_* members.
	(get_representative): Removed.
	(value_dies_in_block_x): Update for rvuse removal.
	(valid_in_sets): Update for renaming of vuses_dies_in_block_x.
	(compute_antic_aux): Handle when PHI nodes appear in
	non-single-successors.
	(dump_bitmap_of_names): Removed.
	(compute_antic_safe): Renamed and removed rvuse calculation.
	Calculate only antic safe.
	(insert_into_preds_of_block): Remove assert.
	(execute_pre): Update for renamed functions.
	(defer_or_phi_translate_block): New function.

2007-03-17  Kazu Hirata  <kazu@codesourcery.com>

	* config/arm/arm.c, config/arm/thumb2.md, config/m68k/m68k.c,
	config/spu/spu.c, omega.h, passes.c, predict.c: Fix comment
	typos.
	* doc/cpp.texi, doc/extend.texi, doc/invoke.texi: Fix typos.
	Follow spelling conventions.

	* tree-data-ref.h: Remove the prototype for analyze_array.

2007-03-17  Dorit Nuzman  <dorit@il.ibm.com>

	PR tree-optimization/31041
	* tree-vect-transform.c (get_initial_def_for_induction): Call
	force_gimple_operand.

2007-03-17  Olga Golovanevsky  <olga@il.ibm.com>

  	* ipa-type-escape.c (look_for_casts) : Revert code to use
	handled_component_p due to ada test a-numaux.adb.

2007-03-17  Kazu Hirata  <kazu@codesourcery.com>

	* final.c (final_scan_insn): Alter the condition of a
	conditional trap if we have nonstandard CC.

2007-03-16  Alexandre Oliva  <aoliva@redhat.com>

	* configure.ac: Remove excess quoting from asm line 0 test.
	* configure: Rebuilt.

2007-03-16  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

	* doc/invoke.texi (-Wconversion): Document warnings specific to C++.
	* c-common.c (convert_and_check): Move warning logic to...
	(warnings_for_convert_and_check): ...here. Define.
	* c-common.h (warnings_for_convert_and_check): Declare.

2007-03-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

	* pa.c (attr_length_call): Partially revert change of 2007-03-09.
	(output_call): Likewise.

2007-03-16  Richard Sandiford  <richard@codesourcery.com>

	* config/vxworks.h (SUPPORTS_INIT_PRIORITY): Define.

2007-03-16  Richard Sandiford  <richard@codesourcery.com>

	* config/vx-common.h (WINT_TYPE, WINT_TYPE_SIZE): Define.

2007-03-16  Uros Bizjak  <ubizjak@gmail.com>

	* config/i386/i386.c (override_options): Add PTA_NO_SAHF to k8,
	opteron, athlon-64 and athlon-fx processor_alias_table entries.

2007-03-16  Sebastian Pop  <sebastian.pop@inria.fr>

	PR tree-optimization/31183
	* tree-loop-linear.c (gather_interchange_stats, try_interchange_loops):
	Use double_int instead of unsigned int for representing access_strides.
	* testsuite/gcc.dg/tree-ssa/pr31183.c: New.

2007-03-16  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/31146
	* tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Restructure
	to allow recursion of forward_propagate_addr_expr.
	(forward_propagate_addr_into_variable_array_index): Likewise.
	(forward_propagate_addr_expr): Likewise.
	(tree_ssa_forward_propagate_single_use_vars): Likewise.
	(forward_propagate_addr_expr_1): Recurse on simple copies
	instead of propagating into them.  Do so for useless conversions
	as well.
	(forward_propagate_addr_expr): Clean up unused statements after
	recursion.

2007-03-16  Richard Guenther  <rguenther@suse.de>

	* builtins.c (expand_builtin_cexpi): Use the right argument
	for the expansion via cexp.

2007-03-16  Alexandre Oliva  <aoliva@redhat.com>

	* configure.ac: Don't require ELF binutils to tolerate # 0 "".
	* configure: Rebuilt.

2007-03-16  Alexandre Oliva  <aoliva@redhat.com>

	PR debug/29906
	* dwarf2out.c (force_type_die): Adjust comment.
	(dwarf2out_imported_module_or_decl): Handle base AT_import types.

2007-03-15  DJ Delorie  <dj@redhat.com>

	* config/frv/predicates.md (minmax_operator): Don't check operands
	here.

2007-03-15  Zdenek Dvorak  <dvorakz@suse.cz>

	* tree-ssa-loop-niter.c (record_estimate): Add "upper" argument.
	Update constant estimates of number of iterations.
	(record_nonwrapping_iv): Add "upper" argument.  "data_size_bounds_p"
	argument renamed to "realistic".
	(compute_estimated_nb_iterations): Removed.
	(record_niter_bound): New function.
	(idx_infer_loop_bounds): For possible but unlikely tail arrays,
	call record_nonwrapping_iv with upper = false.
	(infer_loop_bounds_from_signedness): Pass upper argument to
	record_nonwrapping_iv.
	(estimate_numbers_of_iterations_loop): Do not call
	compute_estimated_nb_iterations.  Record estimate based on profile
	information.  Initialize the constant estimates of number of
	iterations.
	* tree-data-ref.c (estimated_loop_iterations): Return the recorded
	estimates.
	* tree-ssa-loop-prefetch.c (loop_prefetch_arrays): Add dump when
	number of iterations is too small.
	* cfgloop.h (struct nb_iter_bound): Remove "realistic" field.
	(EST_NOT_AVAILABLE): Removed.
	(struct loop): Replace estimated_nb_iterations by any_upper_bound,
	nb_iterations_upper_bound, any_estimate and nb_iterations_estimate
	fields.

2007-03-15  Zdenek Dvorak  <dvorakz@suse.cz>

	* tree-ssa-loop-niter.c (refine_bounds_using_guard, bound_difference):
	Handle NE_EXPR guards.

2007-03-15  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

	PR c++/24924
	* c-opts.c (c_common_post_options): Handle C++ post-processing here.
	Set also -pedantic-errors by default for the  preprocessor unless
	-fpermissive is given.

2007-03-15  Richard Guenther  <rguenther@suse.de>

	PR middle-end/29719
	PR middle-end/31161
	* builtins.c (expand_builtin_cexpi): As a fallback if we
	don't have builtins for sincos or cexp create a function
	declaration for cexp and expand to a call to that.
	(expand_builtin_int_roundingfn): Always fall
	back to floor/ceil and its variants even if they may be
	not available.

2007-03-15  Steven Bosscher  <steven@gcc.gnu.org>

	PR middle-end/31159
	* cfglayout.c (fixup_reorder_chain): Postpone deleting dead
	jump tables, move the call to delete_dead_jumptables from here...
	(cfg_layout_finalize): ...to here.  But rebuild jump labels first.
	* cfgrtl.c (cfg_layout_can_merge_blocks_p): When not optimizing,
	don't allow merging of blocks that try_redirect_by_replacing_jump
	also does not handle when not optimizing.

2007-03-15  Uros Bizjak  <ubizjak@gmail.com>
	    Francois-Xavier Coudert  <coudert@clipper.ens.fr>

	* config/i386/i386.md (x86_sahf_1): Correctly handle
	HAVE_AS_IX86_SAHF.

2007-03-15  Uros Bizjak  <ubizjak@gmail.com>

	PR target/31167
	* config/i386/i386.md (*addti3_1, *addti3_1 splitter): Use
	x86_64_general_operand as operand[2] predicate.  Remove "iF"
	from operand constraints and use "e" constraint instead.
	(*subti3_1, *subti3_1 splitter): Ditto.
	(*negti2_1, *negti2_1 splitter): Use nonimmediate_operand as
	operand[1] predicate.

2007-03-14  Sebastian Pop  <sebastian.pop@inria.fr>

	* tree-loop-linear.c (gather_interchange_stats): For multidimensional
	arrays, multiply the access strides by the size of the sub-array.
	* testsuite/gcc.dg/tree-ssa/ltrans-5.c: New.

2007-03-14  Uros Bizjak  <ubizjak@gmail.com>

	* configure.ac (HAVE_AS_IX86_SAHF): On x86 targets check whether
	the configured assembler supports the sahf mnemonic.
	* configure: Regenerate.
	* config.in: Regenerate.

	* config/i386/i386.md (x86_sahf_1): Depending on HAVE_AS_IX86_SAHF,
	emit "sahf" or ".byte\t0x9e" as asm template.

2007-03-14  Michael Meissner  <michael.meissner@amd.com>

	PR 31018
	* config/i386/i386.h (X86_TUNE_SHORTEN_X87_SSE): New tuning
	option to replace hard coded TARGET_xxx in md file.
	(X86_TUNE_AVOID_VECTOR_DECODE): Ditto.
	(X86_TUNE_SLOW_IMUL_IMM32_MEM): Ditto.
	(X86_TUNE_SLOW_IMUL_IMM8): Ditto.
	(X86_TUNE_MOVE_M1_VIA_OR): Ditto.
	(X86_TUNE_NOT_UNPAIRABLE): Ditto.
	(X86_TUNE_NOT_VECTORMODE): Ditto.
	(TUNE_SHORTEN_X87_SSE): Use new tuning option.
	(TUNE_AVOID_VECTOR_DECODE): Ditto.
	(TUNE_SLOW_IMUL_IMM32_MEM): Ditto.
	(TUNE_SLOW_IMUL_IMM8): Ditto.
	(TUNE_MOVE_M1_VIA_OR): Ditto.
	(TUNE_NOT_UNPAIRABLE): Ditto.
	(TUNE_NOT_VECTORMODE): Ditto.

	* config/i386/i386.c (ix86_tune_features): Fill in new tuning
	options.

	* config/i386/i386.md (fix_trunc?f?1_sse peephole2): Use new
	tuning options instead of hard coded TARGET_xxx.
	(fix ssemode peephole2's): Ditto.
	(imul peephole2's): Ditto.
	(movsi_or): Ditto.
	(movdi_or_rex64): Ditto.
	(move peephole2): Ditto.
	(not peephole2's): Ditto.

2007-03-14  Dirk Mueller  <dmueller@suse.de>

	* c-common.h (empty_body_warning): Rename to empty_if_body_warning.
	* c-common.c (empty_if_body_warning): Rephrase diagnostic message.
	* c-parser.c (c_parser_if_body): Always add an empty statement in case
	of empty body.
	* c-parser.c (c_parser_do_statement): Warn about empty body in
	do/while statement.
	* c-typeck (c_finish_if_stmt): Call empty_if_body_warning.
	* doc/invoke.texi (-Wempty-body): Update documentation.

2007-03-14  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

	PR c/21438
	* c-common.h (warn_for_div_by_zero): Declare.
	* c-common.c (warn_for_div_by_zero): Define.
	* c-typeck.c (build_binary_op): Call warn_for_div_zero instead of
	warning.

2007-03-14  Richard Sandiford  <richard@codesourcery.com>

	* Makefile.in (PREPROCESSOR_DEFINES): Add directory terminators
	to PREFIX and STANDARD_PREFIX.

2007-03-14  Richard Sandiford  <richard@codesourcery.com>
	    Phil Edwards  <phil@codesourcery.com>

	* gthr-vxworks.h: Add an extern "C" wrapper for C++.
	(__gthread_once_t): Remove busy field for RTPs.
	(__GTHREAD_ONCE_INIT): Update accordingly.

2007-03-14  Richard Sandiford  <richard@codesourcery.com>

	* doc/invoke.texi: Document VxWorks options.

2007-03-14  Uros Bizjak  <ubizjak@gmail.com>

	* doc/invoke.texi (i386 and x86-64 Options): Clarify -msahf option.

2007-03-13  Seongbae Park <seongbae.park@gmail.com>

	PR tree-optimization/30590
	* tree-nrv.c (tree_nrv): Check for the partial update of the
	return value.

2007-03-13  Alexandre Oliva  <aoliva@redhat.com>

	* flags.h (flag_random_seed): Remove declaration, in favor of...
	* toplev.h (get_random_seed, set_random_seed): ... these.
	* tree.c (get_file_function_name): Use the former.
	* opts.c (common_handle_option): Use the latter.
	* toplev.c

2007-03-13  Steven Bosscher  <steven@gcc.gnu.org>

	PR middle-end/31127
	* cse.c (cse_find_path): Do not bail out if a basic block that
	we already visited now becomes part of a path that starts at a
	different basic block.  Just disallow this, to make sure we
	visit each basic block at most once.

2007-03-13  Jan Hubicka  <jh@suse.cz>

	* ipa-inline.c (cgraph_maybe_hot_edge_p): Look for hot/cold attributes,
	when profile esitmate is present, calls with very low frequency are
	cold.

2007-03-13  Zdenek Dvorak  <dvorakz@suse.cz>

	PR tree-optimization/30730
	PR tree-optimization/26900
	* tree-ssa-loop-niter.c: Include gmp.h.
	(bounds): New type.
	(mpz_set_double_int, get_type_bounds, mpz_to_double_int,
	split_to_var_and_offset, determine_value_range,
	bound_difference_of_offsetted_base, refine_bounds_using_guard,
	bound_difference, bounds_add, bounds_negate,
	number_of_iterations_ne_max, dump_affine_iv): New functions.
	(number_of_iterations_ne, number_of_iterations_lt_to_ne,
	assert_loop_rolls_lt, assert_loop_rolls_le): Use bounds on the
	difference of initial and final value of control iv to validate
	results.
	(number_of_iterations_cond): Add loop parameter.  Determine bounds
	on the difference of the extremes of the control iv.  Add dumps.
	(expand_simple_operations): Handle phi nodes.
	(simplify_using_initial_conditions): Do not record used conditions.
	(number_of_iterations_exit): Pass loop to number_of_iterations_cond.
	Do not set additional_info.
	(implies_nonnegative_p, implies_ge_p): Removed.
	(derive_constant_upper_bound): Do not use parameter `additional'.
	(record_estimate): Parameter `additional' removed.  Parameter
	`i_bound' added.  Do not call derive_constant_upper_bound.
	(record_nonwrapping_iv): Use derive_constant_upper_bound to
	bound the number of iterations estimate.
	(estimate_numbers_of_iterations_loop): Pass the estimate from
	the number of iterations analysis to record_estimate.
	* tree.h (multiple_of_p): Declare.
	* tree-scalar-evolution.c (expression_expensive_p): Removed.
	(scev_const_prop): Do not check expression_expensive_p.
	* fold-const.c (multiple_of_p): Exported.
	* double-int.c (double_int_mask): Exported.
	* double-int.h (double_int_mask): Declare.
	* tree-flow.h (struct tree_niter_desc): Removed additional_info
	field.  Added max field.

2007-03-13  David Taylor  <taylor@candd.org>

	PR driver/12448:
	* gcc.c (cpp_unique_options): If -MT or -MQ is seen, don't pass
	default -MQ.

2007-03-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

	PR target/31123
	* pa.md (vdepi_ior): Don't allow zero length deposit.  Likewise for
	two unamed patterns.

2007-03-13  Uros Bizjak  <ubizjak@gmail.com>

	* config/i386/i386.opt (mcx16, msahf): New options.
	* config/i386/i386.c (x86_cmpxchg16b, x86_sahf): Remove.
	(ix86_tune_features) [X86_TUNE_USE_SAHF]: Enable for m_GENERIC.

	* config/i386/driver-i386.c (bit_LAHF_LM): New define.
	(host_detect_local_cpu): Detect cx16 and lahf_lm cpuid bits.
	Output -mcx16 and -msahf options when corresponding bit is set.

	* doc/invoke.texi (i386 and x86-64 Options): Document -mcx16
	and -msahf options.

2007-03-13  Alexandre Oliva  <aoliva@redhat.com>

	* configure.ac: Test for assembler tolerance to # 0 "".
	* configure, config.in: Rebuilt.
	* final.c (final_scan_insn): Emit it if HAVE_AS_LINE_ZERO.

2007-03-13  Geoffrey Keating  <geoffk@apple.com>

	* doc/invoke.texi (Spec Files): Update for '%{,' spec.

	* config/rs6000/darwin-fallback.c: Compile file only on powerpc.
	(handle_syscall): Handle direct system calls.
	* config/rs6000/darwin.h (HAS_MD_FALLBACK_FRAME_STATE_FOR): Delete.

2007-03-12  Brooks Moses  <brooks.moses@codesourcery.com>

	* doc/invoke.texi: Fix cpp.info cross-reference.
	* doc/passes.texi: Fix gcc.info cross-reference.

2007-03-12  Zdenek Dvorak  <dvorakz@suse.cz>

	PR tree-optimization/30835
	* lambda-code.c (can_convert_to_perfect_nest): Check whether
	bb_for_stmt is not NULL before accessing it.

2007-03-12  Joseph Myers  <joseph@codesourcery.com>

	* gcc.c (main): Handle target_sysroot_hdrs_suffix being NULL for
	some multilibs.

2007-03-12  Brooks Moses  <brooks.moses@codesourcery.com>

	PR 30635
	* doc/install.texi: Document --enable-stage1-languages

2007-03-12  Steven Bosscher  <steven@gcc.gnu.org>

	* tree-pass.h (pass_into_cfg_layout_mode,
	pass_outof_cfg_layout_mode): Declare.
	* cfglayout.c (into_cfg_layout_mode, outof_cfg_layout_mode,
	pass_into_cfg_layout_mode, pass_outof_cfg_layout_mode): New.
	* passes.c (pass_into_cfg_layout_mode): Schedule before jump2.
	(pass_outof_cfg_layout_mode): Schedule after pass_rtl_ifcvt.

2007-03-12  Seongbae Park <seongbae.park@gmail.com>

	* c-decl.c (warn_variable_length_array): New function.
	Refactored from grokdeclarator to handle warn_vla
	and handle unnamed array case.
	(grokdeclarator): Refactored VLA warning case.
	* c.opt (Wvla): New flag.
	* doc/invoke.texi (Wvla): New warning.

2007-03-12  Richard Henderson  <rth@redhat.com>

	* config/alpha/alpha.c (alpha_elf_section_type_flags): New.
	(TARGET_SECTION_TYPE_FLAGS): New.

2007-03-12  Richard Henderson  <rth@redhat.com>

	* config/darwin.c (machopic_reloc_rw_mask): New.
	* config/darwin-protos.h (machopic_reloc_rw_mask): Declare.
	* config/darwin.h (TARGET_ASM_RELOC_RW_MASK): New.

2007-03-12  Mark Mitchell  <mark@codesourcery.com>

	* cppdefault.c (cpp_EXEC_PREFIX): New variable.
	* cppdefault.h (cpp_PREFIX): Document.
	(cpp_PREFIX_len): Likewise.
	(cpp_EXEC_PREFIX): New variable.
	* Makefile.in (PREPROCESSOR_DEFINES): Add STANDARD_EXEC_PREFIX.
	* c-incpath.c (add_standard_paths): Correct logic for relocating
	paths within prefix.

2007-03-12  Uros Bizjak  <ubizjak@gmail.com>

	* config/i386/i386.md (fixuns_trunc<mode>hi2): Implement from
	fixuns_truncsfhi2 and fixuns_truncdfhi2 using SSEMODEF
	mode macro.
	(fix_trunc<mode>di_sse): Implement from fix_truncsfdi_sse and
	fix_truncdfdi_sse using SSEMODEF mode macro.
	(fix_trunc<mode>si_sse): Implement from fix_truncsfsi_sse and
	fix_truncdfsi_sse using SSEMODEF mode macro.
	(fix_trunc?f?i_sse peephole2): Implement using SSEMODEF mode macro.
	(fix_trunc?f?i_sse K8 peephole2): Fix register constraint.

2007-03-12  Richard Sandiford  <richard@codesourcery.com>

	* config.gcc (i[4567]86-wrs-vxworks, i[4567]86-wrs-vxworksae): Add
	elfos.h to tm_file.

2007-03-12  Olga Golovanevsky  <olga@il.ibm.com>

  	* tree.h : Add multiple_of_p declaration.
  	* fold-const.c (multiple_of_p): Make multiple_of_p public.
  	* ipa-type-escape.c (results_of_malloc): Redundant.
  	(visited_stmts): New. Visited stmt for walk_use_def_chains.
  	(cast_type): Extended with new members.
  	(check_cast): Returns cast_type.
  	(cast): New structure for data of walk_use_def_chains.
  	(is_malloc_result, is_cast_from_non_pointer_1,
  	is_cast_from_non_pointer,
  	is_array_access_through_pointer_and_index): New functions.
  	(look_for_casts): Returns cast types.
 	(check_call): Returns void.
  	(okay_pointer_operation): Use support of pointer plus index,
  	pointer plus constant and allow all multiplications.

2007-03-11  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/31115
	* tree-vrp.c (extract_range_from_binary_expr): Make sure
	the shift count is positive and non-anti-range for RSHIFT_EXPR.
	A shift count of zero is not special as with *_DIV_EXPR.
	(vrp_int_const_binop): Handle RSHIFT_EXPR for determining overflow
	direction.

2007-03-11  Ian Lance Taylor  <iant@google.com>

	* tree-vrp.c (vrp_int_const_binop): Handle PLUS_EXPR and
	the *_DIV_EXPR codes correctly with overflow infinities.

2007-03-11  Ira Rosen  <irar@il.ibm.com>

	* tree-data-ref.c (analyze_offset): Add a return value (bool) to
	indicate success/failure of the analysis. Add negation to subtrahend
	in case of subtraction. Fail if both operands contain constants.
	(create_data_ref): Fail if analyze_offset fails.

2007-03-11  Uros Bizjak  <ubizjak@gmail.com>

	* config/i386/i386.md (frndintxf2): Rename to ...
	(rintxf2): ... this. Remove expander having same name.
	(rintsf2, rintdf2): Implement using SSEMODEF macro.
	(roundsf2, rounddf2): Ditto.
	(lrint<mode>di2, lrint<mode>si2): Implement using SSEMODEI24 macro.
	(lround<mode>di2, lround<mode>si2): Ditto.

2007-03-11  Steven Bosscher  <steven@gcc.gnu.org>

	* lower-subreg.c: Include except.h.
	(decompose_multiword_subregs): Verify that the only control flow
	insns we can split are loads to multi-words pseudos.
	Handle breaking such blocks after splitting, instead of calling
	find_many_sub_basic_blocks.

	* loop-unroll.c (split_edge_and_insert): Don't set BB_SUPERBLOCK
	on the new basic block.  Add a lengthy comment explaining why we
	thought this was necessary.
	* cfglayout.c (cfg_layout_finalize): Don't break superblocks.

2007-03-10  Mark Mitchell  <mark@codesourcery.com>

	PR c++/30924
	* tree.c (walk_type_fields): Recurse into the element type of
	ARRAY_TYPEs if there is a pointer set.

2007-03-10  Dirk Mueller  <dmueller@suse.de>

	* c-common.c (warn_logical_operator): Fix condition.