Apply Philip Blundell's patch to add arm-conix target.

[thirdparty/gcc.git] / gcc / ChangeLog

2000-02-29  Philip Blundell  <pb@futuretv.com>

	* config/arm/conix-elf.h: New file.
	* configure.in (arm*-*-conix*): New configuration.
	* configure: Regenerate.

2000-02-28  Jason Merrill  <jason@casey.cygnus.com>

	* dwarf2out.c (gen_block_die): Output abstract blocks even if they
	don't have TREE_ASM_WRITTEN set.

Mon Feb 28 21:07:59 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* Eliminate DECL_FIELD_SIZE.
	* builtins.c (built_in_class_names, built_in_names): New variables.
	* c-decl.c (finish_struct): Set specified size in DECL_SIZE.
	* expr.c (expand_expr, case COMPONENT_REF): Get field size from
	DECL_SIZE, not DECL_FIELD_SIZE.
	* print-tree.c (print_node): Remove code that prints extra blank
	lines in some cases.
	Properly handle inline and builtin function cases.
	* stor-layout.c (layout_decl): Get specified size from DEC_SIZE.
	* tree.h (built_in_class_named, built_in_names): New declarations.
	(union tree_decl): Rename internal unions to u1 and u2 and change
	some of their components.
	Add new field built_in_class.
	(DECL_ALIGN, DECL_INCOMING_RTL, DECL_SAVED_INSNS, DECL_FRAME_SIZE):
	Reflect above changes.
	(DECL_FUNCTION_CODE, DECL_BUILT_IN_CLASS): Likewise.
	(DECL_SET_FUNCTION_CODE, DECL_FIELD_SIZE): Deleted.
	* objc/objc-act.c (objc_copy_list): Use DECL_SIZE, not DECL_FIELD_SIZE.
	(encode_field_decl): Likewise; also remove obsolete test for bitfield.

2000-02-28  Dmitri Makarov  <dim@windriver.com>

	* extend.texi: Document ARM's support for long/short calls.

	* invoke.texi: Document ARM's -mlong-calls command line switch.
	
	* config/arm/arm-protos.h (arm_is_longcall_p): Add prototype.
	(arm_encode_call_attribute): Add prototype.
	(arm_set_default_type_attribute): Add prototype.
	(arm_strip_name_encoding): Add prototype.

	* config/arm/arm.c (arm_init_cumulative_args): replace
	initialisation og 'long_calls' field with initialisation of
	'call_cookie' field.
	(enum arm_pragma_enum): New enum.
	(arm_pragma_long_calls): New static variable.
	(arm_process_pragma): Also process "#pragma long_calls_off".
	(arm_valid_type_attribute_p): Accept short_call attribute.
	(arm_comp_type_attributes): Check long/short call attributes.
	(arm_encode_call_attribute):  New function:  Encode long_call
	or short_call attribute in function name.
	(arm_set_default_type_attributes): New function: Assign
	default attributes to newly defined type.
	(current_file_function_operand): New function: Return true if
	the symbol is a function which has already been compiled.
	(arm_is_longcall_p): New function: Return true if the
	indicated function should be called via a long call.
	(arm_get_strip_length): New function.  Returns number of
	prefix characters to be stripped from a function's name.
	(arm_strip_name_encoding): New function.  Strip prefix characters
	from a function's name.

	* config/arm/arm.h (CUMULATIVE_ARGS): Replace 'long_call' field
	with 'call_cookie'.
	(SHORT_CALL_FAG_CHAR): Define.
	(LONG_CALL_FAG_CHAR): Define.
	(ENCODED_SHORT_CALL_ATTR_P): Define.
	(ENCODED_LONG_CALL_ATTR_P): Define.
	(ARM_NAME_ENCODING_LENGTHS): Define.
	(STRIP_NAME_ENCODING): Define.
	(ASM_OUTPUT_LABELREF): Define, and use to strip name encoding.
	(ARM_ENCODE_CALL_TYPE): Define.
	(ENCODE_SECTION): Invoke ARM_ENCODE_CALL_TYPE.
	(ARM_DECLARE_FUNCTION_SIZE): Define.
	(SET_DEFAULT_TYPE_ATTRIBUTES): Define.

	* config/arm/arm.md (call): Call arm_is_longcall_p to decide
        if a long call is needed.
	(call_value): Ditto.
	(call_symbol): Ditto.

	* config/arm/elf.h (ASM_DECLARE_FUNCTION_SIZE): Add invocation of
	ARM_DECLARE_FUNCTION_SIZE.

	* config/arm/pe.h (ARM_PE_FLAG_CHAR): Define.
	(SUBTARGET_NAME_ENCODING_LENGTHS): Define.
	(ARM_STRIP_NAME_ENCODING): Undefine.
	(STRIP_NAME_ENCODING): Undefine.
	(ASM_OUTPUT_LABELREF): Use arm_strip_name_encoding.
	(ASM_DECLARE_FUNCTION_NAME): Ditto.
	(ASM_OUTPUT_COMMON): Ditto.
	(ASM_DECLARE_OBJECT_NAME): Ditto.

	* config/arm/pe.c (arm_dllexport_name_p): Check for
	ARM_PE_FLAG_CHAR.
	(arm_dllimport_name_p): Ditto.
	(arm_mark_dllexport): Use ARM_PE_FLAG_CHAR.
	(arm_mark_dllimport): Ditto.
	
Mon Feb 28 22:11:12 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

	* sh.h (DWARF_LINE_MIN_INSTR_LENGTH): Define.

2000-02-28  Mark Mitchell  <mark@codesourcery.com>

	* xcoffout.c (xcoffout_begin_function): Fix typo in previous change.

2000-02-28  Zack Weinberg  <zack@wolery.cumb.org>

	* tm.texi: Document new target switch, NO_BUILTIN_WCHAR_TYPE.
	* cppinit.c (builtin_array): Define __WCHAR_TYPE__ only if
	NO_BUILTIN_WCHAR_TYPE is not defined.
	(CPP_WCHAR_TYPE): Delete.
	* cccp.c (main): Don't change wchar_type if cplusplus.
	(special_symbol, initialize_builtins): Honor NO_BUILTIN_WCHAR_TYPE.

2000-02-28  Nick Clifton  <nickc@cygnus.com>

	* config/arm/arm-wince-pe.h (SIZE_TYPE): Define to "unsigned long".

Mon Feb 28 14:21:15 2000  Catherine Moore  <clm@cygnus.com>

	* config/pa/som.h (MAKE_DECL_ONE_ONLY): Define.
 	(ASM_WEAKEN_LABEL): Define.
 
Mon Feb 28 13:07:19 MET 2000  Jan Hubicka  <jh@suse.cz>

	* expr.c (store_constructor): Do not emit USE.
	* rtl.h (stupid_life_analysis): Remove.

Mon Feb 28 07:03:27 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* function.c (number_blocks): Reset next_block_index based on
	what debugging format is used, not what is defined.
	
	* lcm.c: Minor reformatting throughout.
	(reg_dies, reg_becomes_live): Properly handle multiple hard regs.
	
	* toplev.c (rest_of_compilation): Account for time in
	optimize_mode_switching.

	* jump.c (jump_optimize_1): Don't call delete_barrier_successors
	if only marking labels.

Mon Feb 28 12:53:57 MET 2000  Jan Hubicka  <jh@suse.cz>

	* calls.c (expand_call): Attempt to combine stack adjustments with
	pending stack adjustments.

Mon Feb 28 11:34:43 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

	* loop.c (reg_in_basic_block_p): Don't abort when falling through
	to the end of the function.

2000-02-27  Mark Mitchell  <mark@codesourcery.com>

	* emit-rtl.c (remove_unncessary_notes): Remove notes for empty
	blocks.
	* final.c (next_block_index): Remove.
	(max_block_depth): Likewise.
	(pending_blocks): Likewise.
	(init_final): Don't initialize them.
	(final_start_function): Don't set next_block_index.  Set up
	BLOCK_NUMBER.
	(final_scan_insn): Use BLOCK_NUMBER, not next_block_index.
	* function.h (number_blocks): New function.
	* function.c (get_block_vector): New function.
	(identify_blocks): Use it.
	(reorder_blocks): Set NOTE_BLOCK.
	(number_blocks): New function.
	* tree.def (BLOCK): Add documentation for TREE_ASM_WRITTEN flag.
	* tree.h (BLOCK_NUMBER): New macro.
	(tree_block): Add block_num field.
	* dbxout.c (next_block_number): Remove.
	(dbxout_init): Don't set it.
	(dbxout_block): Only output blocks that have TREE_ASM_WRITTEN
	set.  Use BLOCK_NUMBER, rather than next_block_num, to determine
	block numbers.
	* toplev.c (rest_of_compilation): Always call
	find_loop_tree_blocks.  Fix indentation.
	* dwarf2out.c (next_block_number): Remove.
	(gen_lexical_block_die): Use BLOCK_NUMBER, not next_block_number,
	to determine block numbers.
	(gen_inlined_subroutine_die): Likewise.
	(gen_block_die): Only output blocks that have TREE_ASM_WRITTEN set.
	(decls_for_scope): Don't increment next_block_number.
	* dwarfout.c (next_block_number): Remove.
	(output_lexical_block_die): Use BLOCK_NUMBER, not next_block_number,
	to determine block numbers. 
	(output_inlined_subroutine_die): Likewise.
	(output_block): Only output blocks that have TREE_ASM_WRITTEN set.
	(output_decls_for_scope): Don't increment next_block_number.
	* sdbout.c (next_block_number): Remove.
	(sdbout_block): Use BLOCK_NUMBER.
	(sdbout_begin_block): Simplify.
	* xcoffout.c (next_block_number): Remove.
	(xcoffout_block): Use BLOCK_NUMBER, not next_block_number.
	(xcoffout_begin_block): Don't set next_block_number.
	(xcoffout_begin_function): Likewise. Use BLOCK_NUMBER, not
	next_block_number.
	
Sun Feb 27 16:40:33 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* builtins.c (c_strlen): Use size_diffop and return ssizetype value.
	(expand_builtin_strcpy): Pass correct type to size_binop.
	(expand_builtin_strcmp): Likewise.
	Clean up conditional structure.
	* c-decl.c (init_decl_processing): Don't call set_sizetype twice.
	(complete_array_type): Don't use size_binop for MAXINDEX.
	* c-typeck.c (c_sizeof): Use size_one_node and TYPE_SIZE_UNIT.
	(c_sizeof_nowarn, c_size_in_bytes): Likewise.
	(c_alignof): Use size_one_node.
	(build_unary_op): Pass arg of proper type to size_binop.
	(really_start_incremental_init, push_init_level): Use sizetype for
	constructor{,_bit,_unfilled}_index.
	(pop_init_label, output_init_element): Likewise.
	(output_pending_init_elements, process_init_element): Likewise.
	* calls.c (compute_argument_block_size): Field VAR is ssizetype.
	* expr.c (store_expr): Use size_int.
	(store_constructor): Use proper types for size_binop args.
	(get_inner_reference, expand_expr, case ARRAY_REF): Likewise.
	(expand_expr_unaligned): Likewise.
	(string_contant): Return object of sizetype.
	* expr.h (SUB_PARM_SIZE): Call size_diffop and pass proper types.
	(ARGS_SIZE_RTX): Call ARGS_SIZE_TREE.
	(ARGS_SIZE_TREE): Pass proper types to size_binop.
	* fold-const.c (int_const_binop): Refine when size_int is called.
	(fold_convert): Likewise.
	(size_int_wide): Rework to take KIND as arg, only take low order
	bits, handle new sizetype_tab datatype, and chain entries in
	size_table.
	(size_int_type_wide): New function.
	(size_binop): Validate types of arguments.
	(ssize_binop): Deleted.
	(size_diffop): New function.
	(extract_muldiv): Only fold division into multiplication for sizetypes.
	* function.c (assign_parms): Use size_diffop and make sure
	VAR field is of ssizetype; also pass proper type to size_binop.
	(locate_and_pad_parm, pad_to_arg_alignment): Likewise.
	(round_down): Deleted from here.
	* store-layout.c (sizetype_tab): Now an array.
	(sizetype_set, early_root_list): New variables.
	(variable_size): Use size_one_node.
	(round_up): Pass proper type to size_binop.
	(round_down): Moved to here and corrected as above.
	(layout_record): Pass proper arg types to size_binop.
	(layout_type): Likewise.
	If sizetype_set is zero, record the type just laid out.
	(make_unsigned_type): Don't call set_sizetype;
	(make_signed_type): Likewise; also, call fixup_signed_type.
	(initialize_sizetypes): New function.
	(set_sizetype): Make copy of types, set TYPE_IS_SIZETYPE, and
	set name of bitsizetype to "bit_size_type".
	Fix up type of sizes of all types made before call.
	* tm.texi (ROUND_TYPE_SIZE_UNIT): New macro.
	* tree.c (fix_sizetype): Deleted.
	(build_common_tree_nodes): Call initialize_sizetypes.
	(build_common_tree_nodes_2): Don't call fix_sizetype.
	* tree.h (TYPE_IS_SIZETYPE): New macro.
	(initialize_sizetype): New declaration.
	(enum size_type_kind): New type.
	(struct sizetype_tab): Deleted.
	(sizetype_tab): Now array; adjust sizetype macros.
	(size_diffop, size_int_type_wide): New functions.
	(size_int_wide): Change number of args and type; access macros changed.
	(ssize_int, sbitsize_int): New macros.
	* config/i960/i960.h (ROUND_TYPE_SIZE): Use size_int.
	(ROUND_TYPE_SIZE_UNIT): New macro.

2000-02-27  Zack Weinberg  <zack@wolery.cumb.org>

	* c-lex.c (putback_buffer): Make 'buffer' an unsigned char *.

Sun Feb 27 07:44:17 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* gcov-io.h (__fetch_long, __store_long, __read_long, __write_long):
	Mark as possibly unused.

	* cse.c (cse_insn): Delete dead code involving tablejump.
	Pass CODE_LABEL, not LABEL_REF to gen_jump and reset INSN_CODE.

	* Makefile.in (libcpp.a): Start by deleting it.

2000-02-27  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>

	* cpplib.h (enum file_change_code): Added rename_file.
	* cpplib.c (do_line): If a filename is given, set file_change to
	rename_file.
	(output_line_command): If file_change is rename_file, always
	output a # directive with the file name.

	* cpplib.c (do_pragma): Accept #pragma without consecutive token.

2000-02-26  Mark Mitchell  <mark@codesourcery.com>

	* integrate.c (copy_decl_for_inlining): Preserve TREE_ADDRESSABLE
	when copying a PARM_DECL or RESULT_DECL.

2000-02-26  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* fix-header.c (recognized_function): Also fix prototypes for
	functions taking "void".

2000-02-26  Geoff Keating  <geoffk@cygnus.com>

	* reload1.c (do_output_reload): Check reg_reloaded_valid before
	looking at reg_reloaded_contents.

2000-02-26  Zack Weinberg  <zack@wolery.cumb.org>

	* Makefile.in (STMP_FIXINC): New toggle.
	(LIBGCC2_DEPS): Delete all references.
	(stmp-headers): Delete target.  All references either deleted
	or changed to stmp-int-headers.
	(all.cross): Don't depend on stmp-headers or STMP_FIXPROTO.
	(LIBCPP_OBJS): Take out cppalloc.o.
	(cppalloc.o): Delete target.
	(stmp-int-hdrs): Depend on $(STMP_FIXINC).
	(gen-protos, fix-header): Link with libiberty.a.
	* build-make: Don't change FIXINCLUDES.  Override STMP_FIXINC
	to empty.

	* configure.in: Remove refs to strerror.
	* acconfig.h: Take out NEED_DECLARATION_STRERROR.
	* system.h: Take out strerror stanza.

	* cpperror.c (my_strerror): Delete function.
	(cpp_error_from_errno, cpp_notice_from_errno): Use xstrerror.
	* cppmain.c (main): Call xmalloc_set_program_name first thing.
	* cppalloc.c: Delete file.
	* gen-protos.c: Don't provide xrealloc.

	* fixinc/fixincl.c, fixinc/fixlib.c, fixinc/procopen.c: Use
	xstrerror throughout.

2000-02-26  Bruce Korb  <bkorb@gnu.org>

	* fixinc/inclhack.def (undefine_null): the bypass pattern needs to
	match for DOS headers, too.
	* fixinc/inclhack.sh,fixincl.x: Regenerate.

2000-02-26  Geoff Keating  <geoffk@cygnus.com>

	* config/elfos.h (ASM_OUTPUT_LABELREF): Don't define.  The default
	is right for most ELF targets.
	* config/ns32k/ns32k.h (ASM_OUTPUT_LABELREF): Don't define.
	Let the default file use %U properly.
	* config/sh/elf.h (ASM_OUTPUT_LABELREF): Don't define.  Use the
	default.

	* config/fp-bit.c (pack_d): Properly handle rounding of denormal
	numbers.

Sat Feb 26 09:39:16 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* toplev.c (documented_lang_options): Correct spelling error.
	(decode_d_option, decode_f_option, main): Likewise.

	* toplev.c (print_time): Avoid SIGFPE when all_time is zero.

	* config/alpha/alpha.h (ASM_OUTPUT_MI_THUNK): Use .set at
	to tell assembler it is permitted to expand large constants.

2000-02-25  Mumit Khan  <khan@xraylith.wisc.edu>

	* protoize.c: (AUX_INFO_SUFFIX): New macro.
	(aux_info_suffix): Use.
	(SAVE_SUFFIX): New macro.
	(save_suffix): Use.
	(munge_compile_parms): Fix typo in NUL. DJGPP supports /dev/null.
	(gen_aux_info_file): Use aux_info_suffix instead of ".X".
	(edit_file): Handle 8.3 restriction for DOS/DJGPP filenames.

	* invoke.texi (Running Protoize): Update documentation.

2000-02-25 Mark Elbrecht <snowball3@bigfoot.com>

	* i386/djgpp.h (CPP_PREDEFINES): Remove Unix defines.

2000-02-25  John Wehle  (john@feith.com)

	* rtlanal.c (find_last_value): Allow NULL_RTX for valid_to.

2000-02-25  Anthony Green  <green@cygnus.com>

	* toplev.c (rest_of_compilation): Rebuild jump labels if
	combine_instructions has created a new direct jump.
	* combine.c (try_combine): Add new_direct_jump_p argument.  Set it
	when appropriate.
	(combine_instructions): Call try_combine with new argument.
	Return non-null value when new direct jump instruction is created.
	* rtl.h: combine_instructions returns an int.

Fri Feb 25 19:49:08 2000  Jeffrey A Law  (law@cygnus.com)

	* cse.c (cse_insn): Replace the PATTERN of the insn with an new
	jump when changing a computed jump into a jump to a known
	target.

Fri Feb 25 19:22:44 2000  Graham Stott <grahams@rcp.co.uk>

	* resource.c (mark_referenced_resources): Changed use SET_DEST (...)
	to XEXP (..., 0) on RTL nodes which are not SET or CLOBBER.

	* i386.md (define_expand "clrstrsi"): Fix typo.

Fri Feb 25 18:49:39 2000  "K. Richard Pixley" <rich@microunity.com>

	* rtl.texi: Fix typo.

Fri Feb 25 20:02:35 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

	* sh.c (calc_live_regs): Multiply value assigned to *COUNT_PTR by
	UNITS_PER_WORD.  Change caller initial_elimination_offset.
	(rounded_frame_size): Take into account that argument pushed has
	changed.  Fix TARGET_ALIGN_DOUBLE problem.

2000-02-25  Geoff Keating  <geoffk@cygnus.com>

	* haifa-sched.c (schedule_block): Explain the real reason
	we delete REG_SAVE_NOTEs on the first insn of a block.
	Don't delete REG_SAVE_NOTES for NOTE_INSN_SETJMP.

2000-02-24  Mark Mitchell  <mark@codesourcery.com>

	* input.h (push_srcloc): New function.
	(pop_srcloc): Likewise.
	* toplev.c (push_srcloc): Define it.
	(pop_srcloc): Likewise.

2000-02-24  Richard Henderson  <rth@cygnus.com>

	* flow.c (life_analysis): When collecting reg info, clear
	regs_ever_live.

Thu Feb 24 22:06:52 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

	Fix bug exposed by reload.c no longer rounding the frame
	size to BIGGEST_ALIGNMENT:
	* sh.c (rounded_frame_size): New function.
	(sh_expand_prologue, sh_expand_epilogue): Use it.
	(initial_elimination_offset): Likewise.

Thu Feb 24 20:04:11 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

	Fix breakage from 6th Feb thread_prologue_and_epilogue_insns change:
	* sh-protos.h (sh_need_epilogue): Declare.
	* sh.c (sh_need_epilogue_known): New static variable.
	(sh_need_epilogue): New function.
	(function_epilogue): Clear need_epilogue_known.
	* sh.md (return): Split into expander / insn pattern.
	Make the expander conditional on ! sh_need_epilogue ().

2000-02-24  Nathan Sidwell  <nathan@codesourcery.com>

	* machmode.h (get_mode_alignment): Declare.
	(GET_MODE_ALIGNMENT): Call it.
	* stor-layout.c (get_mode_alignment): New function. Make
	sure alignment is always power of 2.

2000-02-23  Zack Weinberg  <zack@wolery.cumb.org>

	* i386.h: Remove useless definition of "I386" and misleading
	comment above it.

2000-02-23  Zack Weinberg  <zack@wolery.cumb.org>

	* tree.h (TREE_SET_PERMANENT): New macro.  Document conditions
	under which TREE_PERMANENT will be set.
	* tree.c (make_node, copy_node, make_tree_vec, tree_cons,
	build1): Use TREE_SET_PERMANENT.
	* print-tree.c (print_node): Don't report value of
	TREE_PERMANENT if ggc_p is true.

	* c-common.c (c_get_alias_set): Don't use TREE_PERMANENT to
	decide whether to give a type a new alias set.
	* objc/objc-act.c (build_objc_string_object): Never copy the string.
	* tree.c (make_node): Set DECL_IN_SYSTEM_HEADER irrespective
	of value of 'obstack'.


2000-02-24  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.c (c4x_process_after_reload): Split all insns.

2000-02-23  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>

	* cpplib.h (enum cpp_token): Added CPP_WCHAR and CPP_WSTRING.
	* cpplib.c (cpp_get_token): Produce them.
	* cppexp.c (cpp_lex): Handle them.

2000-02-23  Nick Clifton  <nickc@cygnus.com>

	* config/arm/arm.c (arm_comp_type_attributes): Simply and
	comment tests on type attributes.

Wed Feb 23 16:42:21 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

	* final.c (shorten_branches): Make value passed to LOOP_ALIGN
	conform to documentation.
	* sh.h (LOOP_ALIGN): If aligning loops, call sh_loop_align
	to check for special cases.
	* sh-protos.h (sh_loop_align): Declare.
	* sh.c (sh_loop_align): Define.

2000-02-22  Andrew Haley  <aph@cygnus.com>

	* config/mips/mips.h (GAS_ASM_SPEC): Pass -mgp32/-mgp64 to gas.
	(SIZE_TYPE): Is 32 bits when using -mgp32.
	(PTRDIFF_TYPE): Ditto.

Wed Feb 23 07:26:27 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* diagnostic.c (init_output_buffer): Handle case of null PREFIX.

2000-02-23  Zack Weinberg  <zack@wolery.cumb.org>

	* config/i386/i386.h: If IN_TARGET_LIBS is defined, make
	BIGGEST_FIELD_ALIGNMENT a constant.

2000-02-21  Jason Merrill  <jason@casey.cygnus.com>

	* dwarf2out.c (output_line_info): Put the marker for the end of
	the line number info at the actual end.
	(gen_struct_or_union_type_die): Use decl_function_context 
	to check for local classes.
	* dwarfout.c (output_type): Likewise.

Tue Feb 22 01:38:57 2000  Jeffrey A Law  (law@cygnus.com)

	* pa.h (FUNCTION_ARG_PASS_BY_REFERENCE): Handle pass-by-reference
	for arguments with a mode, but no type.
	(FUNCTION_ARG_CALLEE_COPIES): Similarly.
	* t-pa (LIB2FUNCS_EXTRA): Add quadlib.asm.
	* pa/long_double.h: New file.
	* configure.in (hpux10, hpux11 configurations): hpux10 and hpux11
	both have 128bit wide long doubles.
	* configure: Rebuilt.

2000-02-21  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* defaults.h (ASM_OUTPUT_ASCII): Constify a char*.

	* flow.c (get_common_dest, chain_reorder_blocks, make_reorder_chain,
	fixup_reorder_chain, skip_insns_between_block): Add static prototypes.
	(life_analysis): Wrap variable `i' with macro ELIMINABLE_REGS.

	* haifa-sched.c (rank_for_schedule): Don't cast away const-ness.

	* integrate.c (compare_blocks, find_block): Likewise.

	* rtl.c (fatal_with_file_and_line): Add ATTRIBUTE_PRINTF_2.

	* rtl.h (set_file_and_line_for_stmt): Constify a char*.

	* stmt.c (stmt_status, set_file_and_line_for_stmt,
	expand_asm_operands): Likewise.

Mon Feb 21 17:06:27 2000  Jason Eckhardt  <jle@cygnus.com>

	* predict.c (estimate_probability): Added the pointer heuristic to
	the collection of static branch predictors.

2000-02-21  Catherine Moore  <clm@cygnus.com>

	* config/mips/mips.h (ASM_SPEC): Add -mfix700.
	* invoke.texi (-mfix7000): Document.

2000-02-21  Gabriel Dos Reis  <gdr@codesourcery.com>

	* diagnostic.c (init_output_buffer): Make it possible to output at
	least 32 characters if we're given a too long prefix.

2000-02-20  Mark Mitchell  <mark@codesourcery.com>

	* varasm.c (initializer_constant_valid_p): Call
	lang_expand_constant to	simplify the constant.

2000-02-20  Bruce Korb  <bkorb@gnu.org>

	* fixinc/inclhack.def(stdio_va_list):
	typedef needs to be disabled.
	* fixinc/inclhack.sh: regen
	* fixinc/fixincl.x: regen

2000-02-20  Geoff Keating  <geoffk@cygnus.com>

	* print-rtl.c (print_rtx): Don't print addresses when
	flag_dump_unnumbered.

2000-02-20  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* sparc.c (sparc_output_scratch_registers): Mark parameter with
	ATTRIBUTE_UNUSED.
	(sparc_va_arg, sparc_flat_output_function_prologue,
	sparc_flat_output_function_epilogue): Cast value to unsigned in
	comparison.
	(sparc_emit_float_lib_cmp): Remove unused variable `cmp'.
	
	* sparc.md: Add default case in switch.

2000-02-19  Richard Henderson  <rth@cygnus.com>

	* c-typeck.c (add_pending_init): Don't abort for multiple
	fields at the same offset.
	(pending_init_member): Test the correct member.

2000-02-19  Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

	* except.c (start_dynamic_handler) : Use TYPE_MODE (integer_type_node)
	instead of SImode.
	(start_catch_handler) : Same.

2000-02-19  Brad Lucier  (lucier@math.purdue.edu)

	* Makefile.in: Have flow.o depend on $(EXPR_H)

Sat Feb 19 18:43:13 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* c-common.c (decl_attributes): Set DECL_SIZE_UNIT.
	* c-decl.c (duplicate_decls, finish_enum): Likewise.
	(finish_decl): Remove -Wlarger-than code from here.
	* flags.h (id_clash_len): Now int.
	(larger_than_size): Now HOST_WIDE_INT.
	* fold-const.c (size_int_wide): No more HIGH parm; NUMBER is signed.
	Clean up checking to see if in table.
	(make_bit_field_ref): Remove extra parm to bitsize_int.
	* ggc-common.c (ggc_mark_tree_children): Mark DECL_SIZE_UNIT.
	* print-tree.c (print_node): Print DECL_SIZE_UNIT and TYPE_SIZE_UNIT.
	* stmt.c (expand_decl): Use DECL_SIZE_UNIT for stack checking size
	and for computing size of decl.
	* stor-layout.c (layout_decl): Set DECL_SIZE_UNIT.
	Move -Wlarger-than code to here.
	(layout_record): Remove extra arg to bitsize_int.
	Set TYPE_BINFO_SIZE_UNIT.
	(layout_union): Remove extra arg to bitsize_int.
	Use proper type for size of QUAL_UNION.
	(layout_type): Remove extra arg to bitsize_int.
	* toplev.c (id_clash_len): Now int.
	(larger_than_size): Now HOST_WIDE_INT.
	(decode_W_option): Clean up id-clash and larger-than- cases.
	* tree.c (get_identifier, maybe_get_identifier): Remove unneeded casts.
	(expr_align, case FUNCTION_DECL): DECL_ALIGN is not defined.
	* tree.h (BINFO_SIZE_UNIT, TYPE_BINFO_SIZE_UNIT, DECL_SIZE_UNIT): New.
	(struct tree_decl): New field size_unit.
	(size_int_wide): No HIGH operand; NUMBER is now signed.
	(size_int_2): Deleted.
	(size_int, bitsize_int): Don't use it and rework args.
	* varasm.c (assemble_variable, output_constructor): Use DECL_SIZE_UNIT.

Fri Feb 18 20:01:58 2000  Jeffrey A Law  (law@cygnus.com)

	* pa/quadlib.asm (_U_QFgt, _U_Qfge): Fix flags for _U_Qfcmp call.

2000-02-18  Geoff Keating  <geoffk@cygnus.com>

	* invoke.texi (Warning Options): Add an explanation of why
	you might want the -Wfloat-equal flag.

Fri Feb 18 20:08:57 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* bitmap.c (bitmap_operation): Avoid using -1 for index since unsigned.
	* cppinit.c (new_pending_define): Add cast to avoid warning.
	* expmed.c (extract_bit_field): Likewise.
	* flow.c (enum reorder_skip_type): New type.
	(skip_insns_between_blcok): New it.
	Rework to avoid warning about possibly undefined variable.
	* function.c (assign_parms): Make thisparm_boundary unsigned.
	* genrecog.c (write_switch): Cast XWINT result to int.
	* lcm.c: Many static fcns and vars now #ifdef OPTIMIZE_MODE_SWITCHING.
	* mips-tfile.c (init_file): Make two versions of FDR intializer:
	one for MIPS and one for Alpha.
	(get_tag, copy_object): Add casts to avoid warnings.
	* optabs.c (init_one_libfunc): Cast NAME to (char *).
	* reload.c (find_reloads): Make TYPE enum reload_type.
	* sbitmap.c (dump_sbitmap): J is unsigned; don't use "1L".
	* unroll.c (unroll_loop): Initialize UNROLL_NUMBER.
	* varasm.c (compare_constant_1): Add cast to avoid warning.
	* config/alpha/alpha.c (alpha_emit_xfloating_libcall): Cast FUNC
	to (char *).
	(alpha_expand_unaligned_load, alpha_expand_unaligned_store):
 	Cast switch operand of size to int.
	(alpha_expand_epilogue): Always initialize fp_offset and sa_reg.
	* config/alpha/alpha.h (INITIAL_ELIMINATION_OFFSET): Add abort
	in unhandled case.

2000-02-18  Nick Clifton  <nickc@cygnus.com>

	* config/arm/elf.h (ASM_OUTPUT_ALIGN): Do not generate
	anything for an alignment of zero.

	* config/arm/thumb.h (ASM_OUTPUT_ALIGN): Do not generate
	anything for an alignment of zero.

2000-02-18  Martin von Loewis  <loewis@informatik.hu-berlin.de>

	* gcc.texi (Bug Reporting): Refer to bugs.html.
	(Bug Lists): Likewise.
	* system.h (GCCBUGURL): New preprocessor define.
	* rtl.c (fancy_abort): Use it.
	* gcc.c (main): Likewise.

2000-02-18  Richard Henderson  <rth@cygnus.com>

	* flow.c (INSN_VOLATILE, SET_INSN_VOLATILE, uid_volatile): Remove.
	(life_analysis_1): Subsume into ...
	(life_analysis): ... here.  Force PROP_REG_INFO off after reload.
	Use update_life_info for the relaxation.
	(update_life_info): Update REG_BASIC_BLOCK for registers live on
	entry and regs_live_at_setjmp.
	(set_noop_p): Simplify.
	(notice_stack_pointer_modification_1): Renamed from s/_1//.
	(record_volatile_insns): Split into ...
	(delete_noop_moves): ... here,
	(notice_stack_pointer_modification): ... here,
	(insn_dead_p): ... and here.
	(propagate_block): Don't query INSN_VOLATILE.
	(mark_used_regs): Mind !PROP_REG_INFO.
	* toplev.c (rest_of_compilation): Call mark_constant_function here,
	not in life_analysis.

Fri Feb 18 01:29:22 EST 2000  John Wehle  (john@feith.com)

	* loop.c (canonicalize_condition): New function,
	broken out of get_condition.
	(get_condition): Use it.
	* expr.h (canonicalize_condition): Prototype it.

	* tree.h (tree_int_cst_msb): Declare.
	* tree.c (tree_int_cst_msb): New function.

2000-02-17  Mark Mitchell  <mark@codesourcery.com>

	* stmt.c (set_file_and_line_for_stmt): Don't crash if cfun->stmt
	isn't set.

	* invoke.texi (-fmessage-length=n): Document.

2000-02-17  Jason Merrill  <jason@casey.cygnus.com>

	* bitmap.c (bitmap_operation): Don't leak bitmap elements.

2000-02-17  Mark Mitchell  <mark@codesourcery.com>

	* function.c (thread_prologue_and_epilogue_insns): Put a line note
	after the prologue.

2000-02-17  Nick Clifton  <nickc@cygnus.com>

	* config/arm/thumb.c: Replace includes of system headers with
	#include "system.h".

2000-02-16  Richard Henderson  <rth@cygnus.com>

	* configure.in (alpha-linux*, alpha-netbsd) [extra_parts]:
	Add crtbeginS.o and crtendS.o.
	* alpha/elf.h (STARTFILE_SPEC): Use crtbeginS.o.
	(ENDFILE_SPEC): Use crtendS.o.
	* alpha/t-crtbe (crtbeginS.o, crtendS.o): New targets.

	* alpha/crtbegin.asm (__do_frame_takedown): Merge into ...
	(__do_global_dtors_aux): ... here.  Call __cxa_finalize if
	shared and present.
	(__dso_handle): New variable.
	* alpha/crtend.asm (__do_global_ctors_aux): Remove runtime
	bias to __CTOR_END__.
	
2000-02-16  Richard Henderson  <rth@cygnus.com>

	* Makefile.in (s-crtS, crtbeginS, crtendS): Prefix usage with $(T).

Wed Feb 16 21:40:04 2000  Hans-Peter Nilsson  <hp@bitrange.com>

	* longlong.h (__clz_tab): Declare as static to match definition.

2000-02-16 Mark Elbrecht <snowball3@bigfoot.com>
	* i386/xm-djgpp.h (LIBSTDCXX): Delete. Moved to config/i386/djgpp.h.
	(XREF_FILE_NAME): Define.

	* i386/djgpp.h (DATA_SECTION_ASM_OP): Define.
	(EH_FRAME_SECTION_ASM_OP): Define.
	(IDENT_ASM_OP): Define.
	(TEXT_SECTION_ASM_OP): Define.
	(CPP_SPEC): Define.
	(CTORS_SECTION_ASM_OP): Define.
	(CTOR_SECTION_FUNCTION): Use it.
	(DTORS_SECTION_ASM_OP): Define.
	(DTOR_SECTION_FUNCTION): Use it.

2000-02-16  Zack Weinberg  <zack@wolery.cumb.org>

	* reg-stack.c (emit_swap_insn): Do not put a new insn before a
	NOTE_BASIC_BLOCK.

	* flow.c (dump_regset, debug_regset, dump_bb, debug_bb,
	debug_bb_n): New functions.
	(dump_flow_info, print_rtl_with_bb): Use dump_regset.
	* basic-block.h: Prototype new functions.

Wed Feb 16 21:07:53 2000  Denis Chertykov  <denisc@overta.ru>

	* configure.in: Add support for avr target.
	* configure: Rebuilt.

	* invoke.texi: Add AVR invocation docs.
	* install.texi: Add information about AVR.
	* md.texi: Add AVR constraint letters description.
	* extend.texi: Add description for AVR specific attributes.

2000-02-16  Jason Merrill  <jason@casey.cygnus.com>

	* fixinc/fixinc.svr4: Wrap byteorder.h with extern "C".

2000-02-16  Nick Clifton  <nickc@cygnus.com>

	* emit-rtl.c (emit_insn): Move RTL check into make_insn_raw.
	(make_insn_raw): Move RTL check here.

2000-02-16  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* version.c: Include gansidecl.h and version.h.

	* version.h: Wrap entire file in macro __GCC_VERSION_H__.
	
	* configure.in (gcc_version): When setting, narrow search to
	lines containing `version_string'.

	* Makefile.in (mainversion): Likewise. 
	(GCC_H): New variable.
	(gcc.h): Delete target.
	(gcc.o, gccspec.o, cppspec.o): Depend on $(GCC_H), not gcc.h.
	(version.o): Depend on version.h.
	(dbxout.o): Don't depend on gcc.h.

Wed Feb 16 15:04:49 2000  Hans-Peter Nilsson  <hp@bitrange.com>
			  Michael Meissner  <meissner@cygnus.com>

	* md.texi (Simple Constraints): Add item about whitespace.
	* genoutput.c (strip_whitespace): New.
	(scan_operands) [MATCH_OPERAND, MATCH_SCRATCH]: Call
	strip_whitespace for constraints.
	Test pointer using NULL, not 0.

2000-02-16  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>

	* cpplib.c (do_line): Pedwarn for #line > 32767.

	* c-lex.c (readescape): Warn about '\x', but do not reject it.

2000-02-15  Jonathan Larmour  <jlarmour@redhat.co.uk>

	* gcc.c (default_compilers): Add new __GNUC_PATCHLEVEL__ define
	to default cpp spec.
	(do_spec_1): Add support for %v3 spec used by __GNUC_PATCHLEVEL__.
	* cpp.texi: Document __GNUC_PATCHLEVEL__.
	* cpp.1: Likewise.

	* objc/lang-specs.h: Add new __GNUC_PATCHLEVEL__ define to
	default spec.

2000-02-15  Denis Chertykov  <denisc@overta.ru>

	* configure.in: Add support for avr target.

Wed Feb 16 03:21:43 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

	* sh.h (OVERRIDE_OPTIONS): Don't set sh_addr_diff_vec_mode.
	(sh_addr_diff_vec_mode): Don't declare.
	* sh.c (sh_addr_diff_vec_mode): Delete.

Wed Feb 16 01:27:52 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

	* sh.md (mulsi3_highpart): Add REG_EQUAL note to last insn.

Wed Feb 16 00:58:06 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

	* sh.md (udivsi3_i1, divsi3_i1, umulhisi3_i, mulhisi3_i): Name.
	(smulsi3_highpart_i): Name.
	(udivsi3): Wrap emitted insns in REG_LIBCALL / REG_RETVAL notes.
	(divsi3, mulhisi3, umulhisi3, mulsidi3, umulsidi3): Likewise.
	(smulsi3_highpart, umulsi3_highpart): Likewise.

	(mulsidi3_i, umulsidi3_i): Make rtl describe operation
	correctly independent of endianness.
	(mulsidi3, umulsidi3): Now define_insn.  Hide details that
	confuse the optimizers.
	(mulsidi3+1, umulsidi3+1): New define_split.

Tue Feb 15 23:22:26 2000  Andrew Haley  <aph@cygnus.com>

	* config/sh/sh.md: Guard insn splits against illegal registers.
	* config/sh/sh.h: Correct comment about macros.

Tue Feb 15 22:30:36 2000  J"orn Rennecke <amylaar@cygnus.co.uk>
	                  Andrew MacLeod  <amacleod@cygnus.com>

	* Makefile.in (lcm.o): Depend on insn-attr.h.
	* basic-block.h (optimize_mode_switching): Declare.
	* lcm.c (tm_p.h, insn-attr.h): #include.
	(seginfo, bb_info): New structs.
	(antic, transp, comp, delete, insert) : New file-scope static variables.
	(new_seginfo, add_seginfo, make_preds_opaque, reg_dies): New functions.
	(reg_becomes_live, optimize_mode_switching): Likewise.
	* tm.texi: Add description of mode switching macros.
	* toplev.c (rest_of_compilation): Call optimize_mode_switching.

	* sh-protos.h (remove_dead_before_cse): Remove prototype.
	(fldi_ok, fpscr_set_from_mem): New prototypes.
	* sh.h (OPTIMIZATION_OPTION): Remove sh_flag_remove_dead_before_cse set.
	(CONST_DOUBLE_OK_FOR_LETTER_P, SECONDARY_INPUT_RELOAD_CLASS):
	Disable fldi for (TARGET_SH4 && ! TARGET_FMOVD).
	(sh_flag_remove_dead_before_cse): Remove declaration.
	(NUM_MODES_FOR_MODE_SWITCHING, OPTIMIZE_MODE_SWITCHING): New macros.
	(MODE_USES_IN_EXIT_BLOCK, MODE_NEEDED, MODE_AT_ENTRY): Likewise.
	(MODE_PRIORITY_TO_MODE, EMIT_MODE_SET): Likewise.
	* sh.c (broken_move): Disable fldi for (TARGET_SH4 && ! TARGET_FMOVD).
	(barrier_align): Allow for JUMP_INSNS containing a parallel.
	(machine_dependent_reorg): Remove sh_flag_remove_dead_before_cse set.
	(fldi_ok): New function.
	(get_fpscr_rtx): Add fpscr_rtx as GC root.
	(emit_sf_insn): Only generate fpu switches when optimize < 1.
	(emit_df_insn): Likewise.
	(expand_fp_branch, emit_fpscr_use, remove_dead_before_cse): Delete.
	(sh_flag_remove_dead_before_cse): Delete.
	(get_free_reg, fpscr_set_from_mem): New functions.
	* sh.md (movdf, movsf): Remove no_new_pseudos code.
	(return): Remove emit_fpscr_use / remove_dead_before_cse calls.

2000-02-15  Loren Rittle  <ljrittle@acm.org>

	* ginclude/stddef.h: Correct usage of _BSD_RUNE_T_ for FreeBSD.

2000-02-15  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* Makefile.in (TREE_H, collect2.o, gcc.h, mips-tfile.o, cccp.o,
	cpphash.o, cppinit.o, protoize.o, unprotoize.o): Depend on version.h.

	* cccp.c: Include version.h and/or don't declare `version_string'.
	* collect2.c: Likewise.
	* alpha.c: Likewise.
	* arm/aof.h: Likewise.
	* arm/coff.h: Likewise.
	* arm/elf.h: Likewise.
	* arm/pe.h: Likewise.
	* arm/tcoff.h: Likewise.
	* arm/telf.h: Likewise.
	* arm/tpe.h: Likewise.
	* arm/vxarm.h: Likewise.
	* convex/convex.c: Likewise.
	* i386/dgux.c: Likewise.
	* i386/sun386.h: Likewise.
	* m88k/m88k.c: Likewise.
	* mcore/mcore-pe.h: Likewise.
	* mips/mips.h: Likewise.
	* romp/romp.h: Likewise.
	* sh/sh.c: Likewise.
	* cpphash.c: Likewise.
	* cppinit.c: Likewise.
	* dwarf2out.c: Likewise.
	* dwarfout.c: Likewise.
	* gcc.c: Likewise.
	* gcc.h: Likewise.
	* mips-tfile.c: Likewise.
	* protoize.c: Likewise.
	* toplev.c: Likewise.
	* tree.h: Likewise.
	
	* version.c (version_string): Constify a char*.

	* version.h: New file.

2000-02-14  Nick Clifton  <nickc@cygnus.com>

	* configure.in: Add mcore-elf and mcore-pe targets.
	* configure: Regenerate.

	* NEWS: Add note that MCore port has been contributed.

	* invoke.texi: Document command line switches for MCore port.
	* install.texi: Add MCore to list of supported targets.

2000-02-14  Geoff Keating  <geoffk@cygnus.com>

	* collect2.c (main) [COLLECT_EXPORT_LIST]: If we have frames,
	then we will need to import the frame handling functions.
	(scan_prog_file) [COLLECT_EXPORT_LIST]: We will also need
	to import the frames themselves.

Mon Feb 14 13:31:01 2000  Stan Cox  <scox@cygnus.com>
	                  Jason Eckhardt  <jle@cygnus.com>

	* basic_block.h: Added prototype for reorder_basic_blocks.
	* toplev.c: Changes to add -freorder-blocks and graph dump after
	block reordering is done.
	* flow.c (reorder_block_def): New structure for use during block
	reordering.
	(REORDER_BLOCK_*): New macros to access members of above structure.
	(skip_insns_between_block, get_common_dest, chain_reorder_blocks,
	make_reorder_chain, fixup_reorder_chain, reorder_basic_blocks): New
	functions for block reordering.

Mon Feb 14 11:24:44 2000  Hans-Peter Nilsson  <hp@bitrange.com>

	* gcc.texi (Passes): Fix typo.
	* md.texi (Standard Names): Ditto.
	* tm.texi (Storage Layout): Ditto.

2000-02-13  Zack Weinberg  <zack@wolery.cumb.org>

	* cpplib.c (do_define): Only free the old definition if it
	actually had one.

2000-02-13   Neil Booth  <NeilB@earthling.net>

	* cppfiles.c (read_and_prescan): When emitting deferred
	newlines, test speccase[] again instead	of checking each
	possible whitespace character in turn.  When we encounter \r,
	look behind for \n first, then ahead.

2000-02-13  Zack Weinberg  <zack@wolery.cumb.org>

	* cse.c (cse_altered): New internal flag.
	(cse_insn): Set it if we changed an insn.
	(cse_main): Clear cse_altered before each basic block.
	Only garbage collect if cse_altered is true afterward.

Sun Feb 13 14:12:28 2000  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>

	* sparc/sol2.h (LIB_SPEC): Link -ldl if profiling.

Sun Feb 13 13:21:55 2000  Jeffrey A Law  (law@cygnus.com)

	* combine.c (simplify_comparison): Fix typo.

Sun Feb 13 12:57:52 2000  Neil Booth <NeilB@earthling.net>

	* prefix.c (concat, lookup_key): Use xmalloc and xrealloc
	consistently.

2000-02-13  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* flow.c (flow_loop_tree_node_add): Use better algorithm by passing
 	previously inserted node instead of root node.	Caller changed.

2000-02-13  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* basic-block.h (FLOW_LOOP_FIRST_BLOCK, FLOW_LOOP_LAST_BLOCK): Delete.

2000-02-12  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* crtstuff.c (__do_global_ctors_aux, __reg_frame_ctor,
	__dereg_frame_dtor): Add prototype argument.

	* gthr-dce.h (__gthread_active_p, __gthread_once): Likewise.

	* gthr-posix.h (__gthread_active_p, __gthread_once): Likewise.

	* gthr-solaris.h (__gthread_active_p, __gthread_once): Likewise.

	* gthr-vxworks.h (__gthread_once): Likewise.

	* gthr-win32.h (__gthread_active_p, __gthread_once): Likewise.

Sat Feb 12 01:44:26 MET 2000  Jan Hubicka  <jh@suse.cz>

	* i386.c (ix86_emit_restore_regs_using_mov): Break out from ...
	(ix86_expand_epilogue): ... here. Use mov instead of add to restore
	stack pointer in functions w/o saved registers, output LEAVE more often
	on TARGET_USE_LEAVE machines.

2000-02-07  Dmitri Makarov  <dim@wrs.com> & Bernd Schmidt <bernds@redhat.com>

	* config/arm/arm.c (arm_init_cumulative_args); New function:
	Initlaise the CUMULATIE_ARGS strcuture for a function
	defintion. 
	(arm_function_arg): New function: Determine where to place a
	function's argument.  Also handles deciding the function's
	call cookie.
	(current_file_function_operand): New function: Return true if
	the symbol is a function which has already been compiled.
	(arm_is_long_call_p): New function: Return true if the
	indicated function should be called via a long call.
	(arm_valid_type_attribute_p): New function: Return true if the
	attribute is a valid, arm specific, attribute.
	(arm_comp_type_attribute): New function: Return true if the
	two types have compatable, arm specific, attributes.

	* config/arm/arm.h (CUMULATIVE_ARGS): Redefine to be a
	structure.
	(FUNCTION_ARG): Redefine to call arm_function_arg.
	(FUNCTION_ARG_PARTIAL_NREGS): Redefine to use correct
	structure field.
	(INIT_CUMULATIVE_ARGS): Redefine to call
	arm_init_cumulative_args.
	(FUNCTION_ARG_ADVANCE): Redefine to use correct structure
	field. 
	(SETUP_INCOMING_VARARGS): Redefine to use correct structure 
	field. 
	(ARM_MARK_NEARBY_FUNCTION): New macro: Mark already compiled
	functions.
	(ENCODE_SECTION): Add call to ARM_MARK_NEARBY_FUNCTION.
	(VALID_MACHINE_TYPE_ATTRIBUTE): Define.
	(COMP_TYPE_ATTRIBUTES): Define.

	* config/arm/arm.md (call): Call arm_is_long_call_p to decide
	if a long call is needed.
	(call_value): Call arm_is_long_call_p to decide if a long call
	is needed.
	(call_symbol): Call arm_is_long_call_p to decide if a long call
	is needed.

	* config/arm/arm-protos.h: Add prototype for arm_is_long_call_p.

2000-02-11  Denis Chertykov  <denisc@overta.ru>

	* README.AVR: New file with information about the avr ports.
	* config/avr: New directory with avr port files.

2000-02-11  Andreas Jaeger  <aj@suse.de>

	* fixinc/Makefile.in (FIXINC_DEFS): Remove unneeded @fixinc_defs@.

2000-02-11  Zack Weinberg  <zack@wolery.cumb.org>

	* cpphash.c: Fix formatting, update commentary.
	(dump_definition): Take three separate arguments instead of a
	MACRODEF structure argument.
	* cpphash.h: Update prototype of dump_definition.
	* cppinit.c (cpp_finish): Update call of dump_definition.

	* cpplib.c (do_define): Always create new hash entry with
	T_MACRO type.  Remove redundant check for redefinition of
	poisoned identifier.  Update call of dump_definition.
	(do_undef): Don't call check_macro_name.  Rename sym_length to
	len.
	(do_error, do_warning): Don't use copy_rest_of_line or
	SKIP_WHITE_SPACE.
	(do_warning): Don't use pedwarn for the actual warning,
	only the notice about its not being in the standard.  (Fixes
	bug with #warning in system headers.)
	(do_ident): Stricter argument checking - accept only a single
	string after #ident.  Also, macro-expand the line.
	(do_xifdef): Use cpp_defined.  De-obfuscate.

	(do_pragma): Split out specific pragma handling to separate
	functions.  Use get_directive_token.  Update commentary.  Do
	not pass on #pragma once or #pragma poison to the front end.
	(do_pragma_once, do_pragma_implementation, do_pragma_poison,
	do_pragma_default): New.

Feb 11 12:30:53 2000  Jeffrey A Law  (law@cygnus.com)

	* jump.c (jump_optimize_1): The first operand in a relational
	can be a CONST_INT.
	* optabs.c (emit_conditional_move): Handle relationals which
	have a known true/false result.

2000-02-11  Geoff Keating  <geoffk@cygnus.com>

	* function.c (thread_prologue_and_epilogue_insns): Don't insert
	a RETURN insn into a block which already ends with a jump.

2000-02-11  Geoff Keating  <geoffk@cygnus.com>

	* haifa-sched.c (BUF_LEN): Increase a lot.

2000-02-11  Nick Clifton  <nickc@cygnus.com>

	* configure.in: Add tm_p_file specification for thumb targets.
	* configure: Regenerate.

	* config/arm/thumb-protos.h: New file: Prototypes for exported
	functions defined in thumb.c.

2000-02-11  Robert Lipe  <robertl@sco.com>

	* Makefile.in (bootstrap-lean): Remove additional files.
	(bootstrap2-lean): Likewise.
	(VOL_FILES): List of files for above.

2000-02-11  Nathan Sidwell  <nathan@acm.org>

	* cpphash.c (special_symbol): Remove spurious argument to
	cpp_lookup.

2000-02-11  Joel Sherrill (joel@OARcorp.com>

	* configure.in: (i*86-*-rtems*): Swapped elf and coff
	stanzas.
	* configure: Rebuilt.

2000-02-11  Rodney Brown  <RodneyBrown@pmsc.com>
	
	* pa-protos.h: Wrap function_arg_padding in TREE_CODE #ifdef.

Fri Feb 11 02:59:05 2000  Jeffrey A Law  (law@cygnus.com)

	* pa.c, pa.h: Remove trigraph sequences within comments.

Fri Feb 11 02:51:56 2000  Pavel Roskin <pavel_roskin@geocities.com>

	* invoke.texi (PPC Options): -mno-new-mnenomics -> -mold-mnemonics.

Fri Feb 11 02:48:30 2000  Brad Lucier  (lucier@math.purdue.edu)

	* sbitmap.h: Make SBITMAP_ELT_BITS unsigned.

2000-02-11  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>
	
	* config/c4x/c4x.c (fp_zero_operand): Check for CONST_DOUBLE.

2000-02-11  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.h (ASM_GLOBALIZE_LABEL): Use c4x_global_label.
	(ASM_OUTPUT_EXTERNAL): Use c4x_external_ref.
	(ASM_OUTPUT_EXTERNAL_LIBCALL): Likewise.
	(ASM_FILE_END): Use c4x_file_end.
	* config/c4x/c4x.c (c4x_global_label): New function.
 	(c4x_external_ref, c4x_file_end): Likewise.

	* config/c4x/c4x-protos.h (c4x_global_label): Add prototype.
 	(c4x_external_ref, c4x_end_file): Likewise.

2000-02-10  Zack Weinberg  <zack@wolery.cumb.org>

	* cppexp.c: Don't include cpphash.h.
	(parse_charconst, cpp_lex): Use cpp_defined.
	(cpp_lex): Use get_directive_token throughout.  Remove
	unnecessary cases from switch.  Move assertion-handling code
	down to OTHER case.
	(cpp_parse_expr): If we see '+' or '-', check the context to
	determine if they are unary or binary operators.  Streamline
	the jumps a bit.  Do not call skip_rest_of_line.

	* cpplib.c: Make skip_rest_of_line and cpp_skip_hspace
	static.  Export get_directive_token.  Update commentary.
	(cpp_defined): New function.
	(do_define): Remove reference to T_PCSTRING.  Call
	free_definition to release memory for old definition, when
	redefining a macro.
	(eval_if_expression): Set only_seen_white to 0 before calling
	cpp_parse_expr.  Call skip_rest_of_line after it returns.
	(cpp_read_check_assertion): Don't preserve a pointer into the
	token buffer across a call to cpp_get_token.

	* Makefile.in (cppexp.o): Don't depend on cpphash.h.
	* cppfiles.c (redundant_include_p): Use cpp_defined.
	* cpphash.c (free_definition): New function.
	(delete_macro): Use it.  Update commentary.
	* cpphash.h: Typedef HASHNODE here.  Prototype cpp_lookup and
	free_definition.
	* cpplib.h: Don't typedef HASHNODE here. Delete T_PCSTRING
	from enum node_type.  Prototype cpp_defined and get_directive_token.
	Don't prototype cpp_lookup, skip_rest_of_line, or cpp_skip_hspace.

	* fix-header.c (check_macro_names): Use cpp_defined.
	(read_scan_file): Set inhibit_warnings and inhibit_errors in
	the options structure.

2000-02-10  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

	* c-pragma.c (maximum_field_alignment): Remove duplicate declaration.

2000-02-10  Jason Merrill  <jason@casey.cygnus.com>

	* dwarf2out.c (add_abstract_origin_attribute): Check TREE_CODE (origin)
	rather than die->die_tag.

Thu Feb 10 16:26:49 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* combine.c (make_extraction, force_to_mode): Avoid warning on
	mixed-signedness conditionals.
	(make_field_assignment, nonzero_bits): Likewise.
	* expmed.c (store_fixed_bit_field): ALIGN arg now unsigned.
	(store_split_bit_field, extract_split_bit_field): Likewise.
	(extract_fixed_bit_field, store_bit_field, 
	* expr.c: Change alignment to be unsigned everywhere.
	(move_by_pieces, store_constructor_field, store_constructor): 
	Alignment parm is unsigned.
	(emit_block_move, emit_group_load, emit_group_store): Likewise.
	(clear_storage, emit_push_insn, compare_from_rtx): Likewise.
	(do_compare_rtx_and_jump): Likewise.
	(move_by_pieces_ninsns, clear_by_pieces): Likewise.
	Compare align with GET_MODE_ALIGNMENT.
	(expand_expr_unaligned): Pointer to alignment is pointer to unsigned.
	(get_inner_reference): Likewise.
	(copy_blkmode_from_reg, emit_push_insn): Remove unneeded casts.
	(expand_assignment): Local vars for alignment now unsigned.
	(store_constructor, store_field, expand_expr, do_jump): Likewise.
	(do_compare_and_jump): Likewise.
	(store_field): Call new function expr_align.
	* expr.h (emit_block_move, emit_group_load, emit_group_store):
	Alignment arg now unsigned.
	(clear_storage, emit_push_insn, compare_from_rtx): Likewise.
	(do_compare_rtx_and_jump, store_bit_field): Likewise.
	(extract_bit_field): Likewise.
	* fold-const.c (add_double): Add cast to eliminate signedness warning.
	* machmode.h (GET_MODE_ALIGNMENT): Result is unsigned.
	(get_best_mode): Alignment arg is unsigned.
	* rtl.h (move_by_pieces): Likewise.
	* store-layout.c (maximum_field_alignment, set_alignment):
	Now unsigned.
	(layout_decl): Alignment arg is now unsigned.
	Remove unneeded casts.
	(layout_record, layout_union, layout_type): Remove unneeded casts.
	Local alignment variables now unsigned.
	(get_best_mode): Alignment arg now unsigned.
	* tree.c (expr_align): New function.
	* tree.h (expr_align): Likewise.
	(maximum_field_alignment, set_alignment): Now unsigned.
	(get_inner_reference): Alignment argument is now pointer to unsigned.
	* varasm.c (assemble_variable): Add cast to eliminate warning.

Thu Feb 10 12:56:47 2000  Jim Wilson  <wilson@cygnus.com>

	* expmed.c (store_bit_field): If op0 and fieldmode are the same size,
	then store directly into op0.

	* calls.c (expand_call): When emitting a NOTE_INSN_SETJMP, search for
	the CALL_INSN, and emit the note immediately after it.

2000-02-10  Nick Clifton  <nickc@cygnus.com>

	* config/arm/thumb.md (epilogue): Include a (return) in the
	generated insn, and emit it using emit_jump_insn not
	emit_insn. 

Thu Feb 10 18:28:59 MET 2000  Jan Hubicka  <jh@suse.cz>

	* function.c (assign_temp): Change zero-sized arrays to size 1.
	* integrate.c (expand_inline_function): Do not update
	stack_alignment_needed
	* i386.c (compute_frame_size): Remove #ifdef PREFERRED_FRAME_BOUNDARY,
	add some sanity checking, remove optimization for function with
	zero frame size.

2000-02-10  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* flow.c (mark_regs_live_at_end): Delete unused variables.

	* ggc-page.c (ggc_page_print_statistics): bzero -> memset.

	* integrate.c (copy_rtx_and_substitute): Wrap variable `alignment'
	in macro FRAME_GROWS_DOWNWARD.

	* stmt.c (expand_end_bindings): Delete unused variable.

	* unroll.c (iteration_info): Mark parameter `loop' with
	ATTRIBUTE_UNUSED.

2000-02-10  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>

	* fixinc/server.c (load_data): Return NULL if the marker line is
	not found.
	(run_shell): If load_data returns NULL, retry the command once, in
	a new shell.

	* configure: Rebuilt.

2000-02-09  Bruce Korb  <bkorb@gnu.org>

	* gcc/fixincludes:  ** DELETED **
	* gcc/fixcpp:  ** DELETED **
	* gcc/fixinc-nt.sed:  ** DELETED **
	* gcc/just-fixinc:  ** DELETED **
	* gcc/Makefile.in:  Removed out-dated commentary
	* gcc/configure.in: Removed fast-fixincludes disablement.
	* MAINTAINERS(Ian Taylor) moved to "Write after approval" group.

2000-02-09  Clinton Popetz  <cpopetz@cygnus.com>
	* function.c (thread_prologue_and_epilogue_insns): Uncomment
	last change.

2000-02-09  Richard Henderson  <rth@cygnus.com>

	* jump.c (delete_insn): Don't delete user labels at -O0.

2000-02-09  Robert Lipe  <robertl@sco.com>

	* Makefile.in (gen-protos): Don't depend on HOST_LIBDEPS.
	Don't link with HOST_LIBS. 

2000-02-09  Zack Weinberg  <zack@wolery.cumb.org>

	* configure.in: Correct --help text for --with-dwarf2.
	Put tm-dwarf2.h after other tm files, if it's requested.
	* configure: Regenerate.
	* config/tm-dwarf2.h: #undef PREFERRED_DEBUGGING_TYPE before
	defining it.

2000-02-09  Zack Weinberg  <zack@wolery.cumb.org>

	* cpplib.h: Provide HASHNODE typedef and forward decl of
	struct hashnode only.  Kill cpp_hashnode typedef.  MACRODEF,
	DEFINITION, struct hashnode, struct macrodef, struct
	definition, scan_decls prototype, default defn of
	INCLUDE_LEN_FUDGE moved elsewhere.

	* cpphash.h: MACRODEF, DEFINITION, struct macrodef, struct
	definition, and struct hashnode moved here. Remove the unused
	'predefined' field from struct definition.  Replace the 'args'
	union with its sole member.  All users updated (cpphash.c).
	Delete HASHSTEP and MAKE_POS macros, and hashf prototype.  Add
	multiple include guard.

	* cpphash.c (hashf): Make static; use better algorithm; drop
	HASHSIZE parameter; return an unsigned int.
	(cpp_lookup): Drop HASH parameter.  PFILE parameter is
	used. Calculate HASHSIZE modulus here.
	(cpp_install): Drop HASH parameter. Calculate HASHSIZE modulus
	here.
	(create_definition): Drop PREDEFINITION parameter.
	* cpplib.c (do_define): Don't calculate a hash value here.
	Don't pass (keyword == NULL) to create_definition.

	* scan.h: Prototype scan_decls here.
	* cppfiles.c: Move INCLUDE_LEN_FUDGE default defn here.
	* cppexp.c, cppfiles.c, cppinit.c, cpplib.c, fix-header.c: All
	callers of cpp_lookup and cpp_install updated.
	
	* cpphash.c (macarg): Hoist all the flag diddling out of the
	function...
	(macroexpand): ... and out of the loop that calls macarg.
	Skip over the initial paren before macro arguments with
	cpp_get_non_space_token; point may be some distance before
	that paren.  Abort if it's not there.

	* cpplib.c (parse_clear_mark): Delete function.
	(parse_set_mark, parse_goto_mark): Make static.
	(ACTIVE_MARK_P): New macro.
	(skip_block_comment, skip_line_comment): Do not bump the line
	if ACTIVE_MARK_P is true.
	(cpp_pop_buffer): The buffer to be popped may not have an
	active mark.
	(cpp_get_token): When looking for the initial paren before
	macro arguments, only set a mark in a file buffer, Always
	return to that mark before proceeding to call macroexpand or
	return a NAME token.

	* cpplib.h: Remove prototypes of parse_set_mark,
	parse_clear_mark, parse_goto_mark.
	(struct cpp_options): Rename 'put_out_comments' to
	'discard_comments' and invert its sense.
	* cppinit.c, cpphash.c, cpplib.c: All users of
	put_out_comments changed to use discard_comments, with
	opposite sense.

2000-02-09  Clinton Popetz  <cpopetz@cygnus.com>

	* function.c (thread_prologue_and_epilogue_insns): Don't delete
	the edge from a block that both jumps and falls through to the
	fallthru block.

2000-02-09  Scott Bambrough  <scottb@netwinder.org>

	* config/arm/arm.md (movsi): In PIC mode, make sure that a
	constant source address is legitimate.

2000-02-09  Philip Blundell  <pb@futuretv.com>

	* config/arm/arm.c (legitimize_pic_address): Handle LABEL_REF
	correctly.

	* config/arm/arm.h (LEGITIMATE_CONSTANT_P): Allow anything when
	generating PIC.
	(LEGITIMATE_PIC_OPERAND): Disallow references to labels.

2000-02-09  Zack Weinberg  <zack@wolery.cumb.org>

	* cpplib.c (cpp_define, cpp_undef): Make sure the stacked buffer
	ends with a newline and a NUL.  Don't be so clever manipulating
	strings.

Wed Feb  9 14:18:08 MET 2000  Jan Hubicka  <jh@suse.cz>

	* reload1.c (reload) Align stack frame to cfun->stack_alignment_needed,
	not to BIGGEST_ALIGNMENT.

2000-02-08  Geoff Keating  <geoffk@cygnus.com>

	* dwarf2.h (DW_CFA_GNU_negative_offset_extended): New constant.
	* dwarf2out.c (dwarf_cfi_name): Print name of new constant.
	(reg_save): Use DW_CFA_GNU_negative_offset_extended when needed.
	(output_cfi): Handle output of DW_CFA_GNU_negative_offset_extended.
	* frame.c (execute_cfa_insn): Handle 
	DW_CFA_GNU_negative_offset_extended.

2000-02-08  Richard Henderson  <rth@cygnus.com>

	* flow.c (tidy_fallthru_edges): Split out from ...
	(delete_unreachable_blocks): ... here.
	(find_basic_blocks): Use it.

Tue Feb  8 15:51:50 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* stmt.c (expand_decl): Do set RTX_UNCHANGING_P for TREE_READONLY.

2000-02-08  Zack Weinberg  <zack@wolery.cumb.org>

	* Makefile.in (GEN_PROTOS_OBJS): Remove libcpp.a.
	(gen_protos.o): Don't depend on cpplib.h or cpphash.h.
	(fix-header.o): Don't depend on cpphash.h.

	* scan.c (hashstr): New function. 
	* scan.h: Prototype it.
	* fix-header.c: Don't include cpphash.h.  Use hashstr.  
	* gen-protos.c: Don't include cpphash.h or cpplib.h.  Use
	hashstr.  Report hash table statistics.  Add private     
	definition of xrealloc.

2000-02-08  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* i386.h (TARGET_SWITCHES): Fix typo in option name.

2000-02-08  Clinton Popetz  <cpopetz@cygnus.com>

	* function.c (thread_prologue_and_epilogue_insns): Don't replace
	jumps with returns unless they are jumps to the fallthru block.

Tue Feb  8 07:53:55 2000  Jan Hubicka  <jh@suse.cz>

	* i386.md (addqi3_cc): Fix contraints.

Tue Feb  8 01:39:45 2000  Hans-Peter Nilsson  <hp@bitrange.com>

	* function.c (emit_return_into_block): Wrap in #ifdef HAVE_return.

2000-02-07  Mark Mitchell  <mark@codesourcery.com>

	* cpplib.c (cpp_get_token): Call CPP_BUMP_LINE after reading a
	carriage return after a macro name.

2000-02-07  Fred Fish  <fnf@be.com>

	* i386/beos-elf.h: (ASM_IDENTIFY_GCC): Define to nothing
	so the gcc2_compiled symbol doesn't confuse BeOS debuggers.

2000-02-07  Zack Weinberg  <zack@wolery.cumb.org>

	* cppfiles.c (deps_output): Count spacers in deps_column.

2000-02-07  Neil Booth  <NeilB@earthling.net>

	* cppinit.c (initialize_dependency_output): If there is no
	suffix, don't try to look for known suffixes.  Use strrchr.
	(cpp_start_read): Remove duplicate initialization.

Mon Feb  7 18:36:41 MET 2000  Jan Hubicka  <jh@suse.cz>

	* calls.c (compute_argument_block_size): New argument
	preferred_stack_boundary.
	(expand_call): update cfun->preferred_stack_boundary, update call of
	compute_argument_block_size
	(emit_library_call): Increate cfun->preferred_stack_boundary
	to PREFERRED_STACK_BOUNDARY
	(emit_library_call_value): Likewise.
	* explow.c (allocate_dynamic_stack_spave): Likewise.
	* function.c (prepare_function_start): Set
	cfun->preferred_stack_boundary
	* function.h (struct function): Add preferred_stack_boundary field.
	* integrate.c (expand_inline_function): Update
	cfun->preferred_stack_boundary and cfun->stack_alignment_needed.
	(copy_rtx_and_substitute): Align frame to stack_alignment_needed only.
	* i386.c (compute_frame_size): Use cfun->preferred_stack_boundary.

2000-02-06  Zack Weinberg  <zack@wolery.cumb.org>

	* cpplib.c (my_strerror, cpp_error, cpp_error_with_line,
	cpp_error_from_errno, cpp_warning, cpp_warning_with_line,
	cpp_pedwarn, cpp_pedwarn_with_line,
	cpp_pedwarn_with_file_and_line): Move to cpperror.c.
	(cpp_print_file_and_line, v_cpp_error, v_cpp_warning,
	v_cpp_error_with_line, v_cpp_warning_with_line,
	cpp_message_from_errno, cpp_perror_with_name): Delete.

	* cpperror.c (cpp_print_containing_files): Take starting
	buffer as argument.
	(cpp_file_line_for_message): Rename to cpp_print_file_and_line.
	(v_cpp_message): Now called directly by all entry points.
	Remove -1 case.
	(cpp_pfatal_with_name, cpp_message): Delete.
	(cpp_notice_from_errno, cpp_ice): New functions.
	(cpp_notice): Is now for reporting error conditions, just
	without an associated file.
	(cpp_error, cpp_error_with_line): Don't do anything if
	opts->inhibit_errors is on.
	(cpp_pedwarn_with_file_and_line): Take column argument also.

	* cpplib.h: Update prototypes of exported functions.
	(struct cpp_options): Add inhibit_errors.

	* cppalloc.c, cppfiles.c: Use fprintf not cpp_notice for
	non-error messages.  Include intl.h.

	* cppinit.c, cppmain.c: Likewise.  Also, use
	cpp_notice_from_errno instead of cpp_perror_with_name or
	cpp_pfatal_with_name, and cpp_notice instead of cpp_message.

	* cppexp.c, cpphash.c, cppinit.c, cpplib.c: Use cpp_ice to
	report internal errors.

	* cpplib.c (do_define): Switch bcopy to memcpy.
	Give cpp_pedwarn_with_file_and_line a dummy column argument.

	* cpplib.c (copy_rest_of_line): Revert previous change: don't
	bail out early if we hit a line comment.

2000-02-06  Richard Henderson  <rth@cygnus.com>

	* flow.c (flow_delete_insn, make_edge, remove_edge): Export.
	* basic-block.h: Declare them.
	* emit-rtl.h (active_insn_p): New.
	(next_active_insn, prev_active_insn): Use it.
	* rtl.h: Declare it.
	* function.c (emit_return_into_block): New.
	(thread_prologue_and_epilogue_insns): Insert return insns instead
	of epilogues when possible.
	* jump.c (jump_optimize_1): Remove code to insert a return insn
	on the fallthru to the exit block.

	* i386.c (ix86_can_use_return_insn_p): Fail for large poped args
	and for non-empty stack frames.
	* i386.md (return): Expand to return-pop as needed.

2000-02-06  Richard Henderson  <rth@cygnus.com>

	* simplify-rtx.c (simplify_relational_operation): Canonicalize
	constant to op1 for testing.

2000-02-06  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.md (*ldi_on_overflow): New pattern.
	(fixuns_truncqfqi2): Use it.

2000-02-06  Richard Henderson  <rth@cygnus.com>

	* i386.c (ix86_agi_dependant): Handle pro_epilogue_adjust_stack
	as a TYPE_LEA insn.

	* i386.md (widening and peepholes): Mask the constant instead of
	using gen_lowpart.

2000-02-05  Zack Weinberg  <zack@wolery.cumb.org>

	* cppfiles.c (read_and_prescan) [case SPECCASE_QUESTION]: Bump
	input pointer before possibly branching off to the backslash
	code.
	* cpphash.c (macroexpand): Correctly delete \r escapes when
	stringifying parameters.
	* cpplib.c (copy_rest_of_line): Go directly to skip_block_comment
	if we can; bail out early if we hit a line comment.
	(handle_directive): Treat '# 123' in an .S file just like
	'# <punctuation>'.  Discard the shifted '#' if we hit '#\n'.
	Return 1 for '# not_a_directive'.
	(get_directive_token): Pop macro buffers here, so that
	cpp_get_token can't sneakily move past a newline.
	Add sanity checks. 
	(cpp_get_token): goto randomchar if handle_directive returns 0.

	* cppalloc.c: Update copyright.
	* cpplib.c: Merge all the static function prototypes into one
	block.
	* cpplib.h: Remove #if 0 block.

	* cpperror.c: Remove #ifdef EMACS block.
	* cppmain.c: Likewise.
	* cpphash.c: Remove #if 0 blocks.
	* cppinit.c: Remove #if 0 blocks, and the -lint option.
	* cpplib.c: Remove #if 0 blocks and code referencing
	pcp_inside_if or for_lint.  Remove duplicate error message.
	Fix error messages for #else after #else or #elif.  Reformat.
	Remove archaic TODO list.
	* cpplib.h: Remove pcp_inside_if and for_lint flags.

2000-02-05  Zack Weinberg  <zack@wolery.cumb.org>

	* i386/osf1elf.h: Add missing backslash to multiline string.

2000-02-05  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* longlong.h [sparc] (udiv_qrnnd): Avoid stringifying macro arg.

2000-02-05  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* Makefile.in (c-common.o): Depend on $(EXPR_H).

	* c-common.c: Include expr.h.

	* c-pragma.c (mark_align_stack): Add prototype.

	* caller-save.c (add_stored_regs): Likewise.

	* combine.c (record_promoted_value): Likewise.

	* i386.c (ix86_sched_reorder_pentium, ix86_sched_reorder_ppro):
	Likewise.

	* cppinit.c (new_pending_define): Likewise.

	* cpplib.c (skip_block_comment, skip_line_comment): Likewise.

	* dwarf2out.c (save_rtx, splice_child_die, reverse_die_lists,
	AT_class, AT_flag, AT_int, AT_unsigned, AT_string, AT_ref, AT_loc,
	AT_addr, AT_lbl, get_AT_ref, free_AT, free_die, local_scope_p,
	class_scope_p): Likewise.

	* dwarf2out.h (dwarf2out_set_demangle_name_func,
	dwarf2out_add_library_unit_info): Likewise.

	* ggc.h (ggc_page_print_statistics): Likewise.

	* haifa-sched.c (propagate_deps): Likewise.

	* reg-stack.c (next_flags_user, record_label_references): Likewise.

	* rtl.h (set_stack_check_libfunc): Likewise.

	* toplev.h (set_fatal_function): Likewise.

	* toplev.c (set_fatal_function): Delete prototype.
	
	* diagnostic.c: Deconstify functions returning malloc'ed ptrs.
	
2000-02-05  Geoff Keating  <geoffk@cygnus.com>

	* ginclude/ppc-asm.h (FUNC_START): Use USER_LABEL_PREFIX.
	(FUNC_END): Likewise.

2000-02-05  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* caller-save.c: Include tm_p.h.

2000-02-05  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* Makefile.in (libgcc.a): Add $(LIBGCC1) to libgcc.a after $(LIBGCC2).

2000-02-04  Neil Booth  <NeilB@earthling.net>

	* cccp.c (main): Check 'dir' for a NULL pointer before passing
	it to strcmp.

2000-02-04  Zack Weinberg  <zack@wolery.cumb.org>

 	* recog.h: Remove NO_MD_PROTOTYPES ifdefs.
 	* genflags.c: Use the max_operand_1 logic from genemit.c to
 	calculate how many arguments gen_insn prototypes have.  Remove
 	NO_MD_PROTOTYPES ifdefs from the generated file.
 	* genoutput.c: Don't define NO_MD_PROTOTYPES in the generated
 	file.  Cast gen_insn initializers to insn_gen_fn.
 	* config/alpha/vms.h: Don't define NO_MD_PROTOTYPES.
 	* gcc.texi: Remove documentation of NO_MD_PROTOTYPES.

2000-02-04  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* fixinc/Makefile.in (HDR): Add machname.h.
	(clean): Likewise.

2000-02-05  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.h (c4x_compare_op0, c4x_compare_op1): Move ...
	(c4x_regclass_map, c4x_caller_save_map, c4x_rpts_cycles): Ditto.
	(c4x_cpu_version): Ditto.
	* config/c4x/c4x-protos.h: ... here.

2000-02-04  Jason Merrill  <jason@casey.cygnus.com>

	* dwarf2out.c (add_abstract_origin_attribute): Don't call
	gen_abstract_function on our context if we're a nested function.

2000-02-05  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.md (fixuns_truncqfqi2): Rewrite.
	* config/c4x/libgcc.S (ufix_truncqfhi2n): Fix.

2000-02-04  Bruce Korb  <bkorb@gnu.org>

	* fixinc/genfixes(machname.h):
	Move the functionality from gen-machine.h into this file.
	UNdef MN_NAME_PAT if there are no names to change.
	Also, be a little kinder when AutoGen is not present.

	* fixinc/Makefile.in(machname.h):
	Change the generation rule to use genfixes.

	* fixinc/fixfixes.c(machine_name):
	machine_name_fix's functionality now dependent upon whether
	MN_NAME_PAT is defined.

	* fixinc/fixtests.c(machine_name):
	ditto.

	* fixinc/fixlib.c(mn_get_regexps): conditional on definition
	of MN_NAME_PAT.

	* fixinc/fixlib.h(mn_get_regexps):
	ditto

	* fixinc/gen-machine.h: DELETED

2000-02-04  Jan Hubicka  <jh@suse.cz>
	    Richard Henderson  <rth@cygnus.com>

	* i386.c (SAVE_REGS_FIRST): Remove.
	(ix86_initial_elimination_offset): Handle only SAVE_REGS_FIRST mode.
	(ix86_compute_frame_size): Likewise.
	(ix86_expand_prologue): Likewise.  Use pro_epilogue_adjust_stack.
	(ix86_emit_restore_regs): Remove.
	(ix86_emit_epilogue_esp_adjustment): Use pro_epilogue_adjust_stack
	when a frame pointer is in use.
	(ix86_expand_epilogue): Handle only SAVE_REGS_FIRST mode.  Use mov
	instead of pop to restore a register when profitable; emit leave
	when profitable.
	(ix86_attr_length_default): Handle pro_epilogue_adjust_stack
	as a TYPE_LEA insn.
	(ix86_adjust_cost): Handle pro_epilogue_adjust_stack as TYPE_ALU.
	* i386.md (prologue_allocate_stack): Remove.
	(epilogue_deallocate_stack): Remove.
	(pro_epilogue_adjust_stack): New.

2000-02-04  Richard Henderson  <rth@cygnus.com>

	* function.c (diddle_return_value): Rework to use a callback function.
	Use current_function_return_rtx if it's been set up.
	(do_clobber_return_reg, clobber_return_register): New.
	(do_use_return_reg, use_return_register): New.
	(expand_function_end): Use them.
	* stmt.c (expand_null_return): Likewise.
	* function.h: Declare them.
	* flow.c (mark_regs_live_at_end): Use diddle_return_value.
	(mark_reg): Change arguments as appropriate for callback.
	* integrate.c (expand_inline_function): Revert 19 Jan change.

Fri Feb  4 20:25:42 2000  Hans-Peter Nilsson  <hp@bitrange.com>

	* tm.texi (Values in Registers): Fix typo: "fo" "for".
	(Misc): Say the scheduler, not the Haifa scheduler.

2000-02-04  Clinton Popetz  <cpopetz@cygnus.com>

	* jump.c (mark_jump_label): Add in_mem param, check SYMBOL_REFs
	when in_mem is set.  Update all callers.

2000-02-04  Richard Henderson  <rth@cygnus.com>

	* i386/openbsd.h (INT_ASM_OP): Define.

Fri Feb  4 10:51:30 2000  Hans-Peter Nilsson  <hp@bitrange.com>

	* tm.texi: Fix various typos.

Thu Feb  3 17:17:32 2000  Steve Ellcey <sje@cup.hp.com>

	* config/pa/pa-hpux11.h (LIB_SPEC): Correct typo in !p case.
	(MD_STARTFILE_PREFIX_1): New macro.

Thu Feb  3 15:08:13 MET 2000  Jan Hubicka  <jh@suse.cz>

	* i386.md (movstrsi, clrstrsi): Support variable sized copies, align
	destination when needed.
	(strmovsi, strsetsi): New expander.
	(strmovsi_1, strsetsi_1): New pattern.
	* i386.h (MASK_NO_ALIGN_STROP, MASK_INLINE_ALL_STROP,
	TARGET_ALIGN_STRINGOPS, TARGET_INLINE_ALL_STRINGOPS): New macros.
	(TARGET_SWITCHES) Add align-stringops and inline-all-stringops.
	* invoke.texi (align-stringops, inline-all-stringops): Document.

Wed Feb  2 23:04:47 2000   Krister Walfridsson <cato@df.lth.se>

	* i386/netbsd.h (INT_ASM_OP): Define.

2000-02-02  Zack Weinberg  <zack@wolery.cumb.org>

	* cpplib.h (cpp_reader): Add new flag, no_directives.
	* cpphash.c (macarg): Set it.
	* cpplib.c (handle_directive): If no_directives is on and we
	find a directive, issue an error and discard the line.

Wed Feb  2 13:07:10 2000  Jim Wilson  <wilson@cygnus.com>

	* config/sparc/sparc.h (PREFERRED_RELOAD_CLASS): Delete 'E' check for
	FP constants.  Add ! TARGET_FPU check for FP constants.

2000-02-02  Clinton Popetz  <cpopetz@cygnus.com>
	
	* flow.c (find_basic_blocks): Don't kill label_value_list
	here.
	(cleanup_cfg): Kill it here.

Wed Feb  2 08:12:30 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* expr.c (store_field): Ensure ALIGN is no stricter than the
	alignment of EXP.

2000-02-02  Richard Henderson  <rth@cygnus.com>

	* jump.c (delete_insn): Partially revert 19 Jan change; 
	don't convert unused code labels to notes at -O0.

2000-02-02 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

	* toplev.c (rest_of_compilation): Run rebuild_jump_labels after
	split_all_insns to recreate REG_LABEL notes for flow2 pass.

2000-02-01  Richard Henderson  <rth@cygnus.com>

	* i386.c (general_no_elim_operand): New.
	(nonmemory_no_elim_operand): New.
	(ix86_expand_move): Copy eliminable operands before a push.
	* i386-protos.h: Declare new functions.
	* i386.h (CAN_ELIMINATE): Simplify.
	(PREDICATE_CODES): Update.
	* i386.md (push insns): Don't allow eliminable register operands.

2000-02-01  Richard Henderson  <rth@cygnus.com>

	* flow.c (mark_regs_live_at_end): Follow expand_function_end and
	replace BLKmode with DECL_RTL's mode.

2000-02-01  Zack Weinberg  <zack@wolery.cumb.org>

	* frame.c (find_fde): Convert for loop to do-while so compiler
	sees it's always executed at least once.
	* libgcc2.c (BBINBUFSIZE): Kill.
	(__bb_init_prg): Use fgets.
	(__bb_exit_trace_func): Don't paste strings.
	* unroll.c (unroll_loop): Initialize unroll_type, not
	unroll_number, and tweak logic to match.

	* i386.c (ix86_expand_int_movcc): Add explicit 'return 0' in
	all failure paths.
	(ix86_flags_dependant): Likewise.  Disentangle control flow.
	(ix86_sched_reorder): Break guts out to
	ix86_sched_reorder_pentium and ix86_sched_reorder_ppro.
	(ix86_sched_reorder_ppro): Initialize pair2 and insnp before
	any possible use.

	* i386.h (MACHINE_STATE_SAVE, MACHINE_STATE_RESTORE): Don't
	use string concatenation.  Don't save and restore esi.

	* fixinc/Makefile.in (fixincl.sh): Don't depend on inclhack.def.
	(machname.h): Remove script to separate file.  Use two-step
	sequence so target is not created if script fails.
	* fixinc/gen-machname.h: New file.  Handle case where no non-reserved
	identifiers are defined.
	* fixinc/fixlib.c (mn_get_regexps): Return a flag: if MN_NAME_PAT is
	an empty string, machine_name doesn't need to do anything at
	all.
	(is_cxx_header): Add more cases to regexp.
	* fixinc/fixlib.h: Update prototype.
	* fixinc/fixtests.c, fixinc/fixfixes.c: Update callers of
	mn_get_regexps.
	* fixinc/fixincl.c: Define NO_BOGOSITY.

	* fixinc/inclhack.def (no_double_slash, else_endif_label): Ifdef out.
	(hp_sysfile): Add missing comma.
	(math_exception): Put the wrapper ifdefs at the beginning and
	the end of the file.
	* fixinc/fixincl.x, fixinc/inclhack.sh: Regenerate.

2000-02-01  Richard Henderson  <rth@cygnus.com>

	* sparc.c (fp_zero_operand): Turn into a normal predicate.
	Use CONST0_RTX.  Update all callers.
	* sparc.h, sparc-protos.h: Update accordingly.
	* sparc.md (fp mov insns): Use fp_zero_operand directly
	where applicable.

Wed Feb  2 02:59:45 2000  Hans-Peter Nilsson  <hp@bitrange.com>

	* tm.texi (Values in Registers): Fix typo in HARD_REGNO_NREGS
	example.

2000-02-01  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* Makefile.in (specs.ready): New target.
	(fixinc.sh): Depend on `specs.ready' instead of `specs'.

2000-02-01  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* fixinc.irix: Use unique filenames for writing into /tmp,
	* fixinc.ptx: Likewise.
	* fixinc.sco: Likewise.
	* fixinc.svr4: Likewise.
	* fixinc.winnt: Likewise.

2000-02-01  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* tsystem.h: New file.

	* Makefile.in (libgcc2.a, stmp-multilib, crtbegin.o, crtend.o,
	s-crtS): Depend on tsystem.h.

	* crtstuff.c: Include tsystem.h.
	* frame.c: Likewise.
	* libgcc2.c: Likewise.

Tue Feb  1 19:53:27 CET 2000  Jan Hubicka  <jh@suse.cz>

	* builtins.c (expand_builtin_memset): Expand for variable sized
	lengths too.

2000-02-01  David Billinghurst <David.Billinghurst@riotinto.com.au> 

	* config/mips/iris6.h (SUBTARGET_ASM_SPEC) : Default ISA based
	on ABI.

Tue Feb  1 00:57:40 2000  Hans-Peter Nilsson  <hp@bitrange.com>

	* dwarfout.c (SHORT_TYPE_SIZE): Correct default.

	* tm.texi (Type Layout): Correct entry for CHAR_TYPE_SIZE.

2000-01-31  Chandra Chavva <cchavva@cygnus.com>

	* combine.c (try_combine) [HAVE_cc0]: Trying to check the missed
	case 3->2 combining (combining with splitting) in which 2 is CC0
	setter/user and 3 is user. The rest of cases 2->1 and 3->2 are 
	checked at the begining of the function with the aid of calling 
	function 'can_combine_p'. 

2000-01-31  Dave Brolley  <brolley@redhat.com>

	* cccp.c (struct argdata): Redeclare 'newlines' field as 'int'.

2000-01-31  Jason Merrill  <jason@casey.cygnus.com>

	* jump.c (redirect_jump): Move a NOTE_INSN_FUNCTION_END to the
	new label.

2000-01-31  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* gansidecl.h (PROTO, VPROTO, PVPROTO): Delete macros.
	
	* sbitmap.h (sbitmap_first_set_bit, sbitmap_last_set_bit):
	PROTO -> PARAMS.

2000-01-30  Zack Weinberg  <zack@wolery.cumb.org>

	* i386/386bsd.h, i386/beos-pe.h, i386/bsd386.h, i386/crtdll.h,
	i386/cygwin.h, i386/dgux.h, i386/djgpp-rtems.h, i386/djgpp.h,
	i386/freebsd.h, i386/gnu.h, i386/i386-aout.h, i386/i386-coff.h,
	i386/i386-interix.h, i386/i386elf.h, i386/linux.h, i386/lynx-ng.h,
	i386/lynx.h, i386/mach.h, i386/mingw32.h, i386/moss.h,
	i386/netbsd.h, i386/next.h, i386/openbsd.h, i386/osf1elf.h,
	i386/ptx4-i.h, i386/rtems.h, i386/rtemself.h, i386/sco.h,
	i386/sequent.h, i386/sun.h, i386/sysv4.h, i386/uwin.h, i386/vsta.h,
	i386/vxi386.h, i386/win-nt.h, i386/win32.h:
	Remove -Di386 -Acpu(i386) -Amachine(i386) from CPP_PREDEFINES.
	
	* i386/osf1elf.h, i386/scodbx.h, i386/seq-sysv3.h, i386/sysv5.h:
	Add %(cpp_cpu) to CPP_SPEC.

	* i386/osf1elf.h, i386/osfelf.h, i386/osfrose.h:
	Add %(cc1_cpu) to CC1_SPEC.

2000-01-28  Ulrich Drepper  <drepper@redhat.com>

	* c-decl.c (c_decode_option): Accept optional numeric argument to
	-Wformat and set warn_format.
	* c-common.c: Don't emit warning about non-constant printf format
	string unless warn_format > 1.

2000-01-30  Richard Henderson  <rth@cygnus.com>

	* alpha.md (return_internal): Allow after reload only.

2000-01-30  Richard Henderson  <rth@cygnus.com>

	* i386.c (ix86_compute_frame_size): Omit padding1 if the
	local frame size is zero.

2000-01-30  Richard Henderson  <rth@cygnus.com>

	* alpha.c (alpha_expand_epilogue): Don't emit the return insn.
	* alpha.h (EPILOGUE_USES): New.  Mark $26 live.
	* alpha.md (return): Turn into an expander.
	(return_internal): Don't use $26.
	(epilogue): Emit the return insn.

2000-01-30  Richard Henderson  <rth@cygnus.com>

	* alpha.md (negtf2, abstf2): Fix word order thinko.
	(extendsftf2): New.
	(trunctfsf2): Avoid intermediate rounding errors.

2000-01-30  Zack Weinberg  <zack@wolery.cumb.org>

	* cppfiles.c (find_position): Drop 'colp' argument, return the
	new line base.
	(read_and_prescan): Adjust to match.  Don't ever manipulate
	line or line_base except via find_position.

2000-01-29  Zack Weinberg  <zack@wolery.cumb.org>

	* c-parse.in: Apply Ulrich's changes from c-parse.y.
	* c-parse.y, objc/objc-parse.y, c-parse.c, objc/objc-parse.c:
	Regenerate.

2000-01-29  Zack Weinberg  <zack@wolery.cumb.org>

	* cpperror.c (cpp_file_line_for_message): If 'line' is zero,
	just print "<command line>".  If 'filename' is null or an
	empty string, print "<stdin>" for the filename.
	* cpplib.c (do_define): Don't print the 'location of the
	previous definition' message if we're still parsing the
	command line.
	(cpp_pedwarn_with_file_and_line): Always call
	cpp_file_line_for_message.

2000-01-29  Mark Mitchell  <mark@codesourcery.com>

	* flow.c (mark_regs_live_at_end): Fix typo.

2000-01-28  Ulrich Drepper  <drepper@redhat.com>

	* c-common.c: Adjust variable names, comments, help strings to c99.
	* c-lex.c: Likewise.
	* c-parse.y: Likewise.
	* c-tree.h: Likewise.
	* cccp.c: Likewise.
	* cpplib.h: Likewise.
	* c-decl.c: Likewise.  Recognize options with names "*99" as well.
	* cppinit.c: Likewise.

2000-01-29 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

	* c4x.h (INIT_TARGET_OPTABS): Add all missing local optab entries.
	* c4x.c: Define the optab rtx values.
	(c4x_add_gc_roots): Add the ggc roots for these optab rtx values.
	(c4x_emit_libcall): Use new optab rtx values.
	(c4x_emit_libcall3): Likewise.
	(c4x_emit_libcall_mulhi): Likewise.
	* c4x-protos.h: Add prototypes for optab rtx values and change
	prototypes for above c4x_emit_libcall functions.

2000-01-29 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

	* c4x.c (c4x_output_ascii): Restrict line length of output when TI
	syntax is used.
	(c4x_function_prologue): Use regnames intead of float_reg_names when
	TI syntax is used.
	(c4x_function_epilogue): Likewise.
	(c4x_print_operand): Likewise.
	* c4x.h (HOST_WIDE_INT_PRINT_HEX): Redefine.
	* c4x.md (set_high): Disable for TARGET_TI.

2000-01-29 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

	* c4x.h (PREFERRED_RELOAD_CLASS): Change to restrict the reloading
	of framepointer + constant to ADDR_REGS class.
	* c4x.md (addqi3, addqi3_noclobber_reload): Update.
	* c4x.c (std_or_reg_operand): New function.
	* c4x-protos.h (std_or_reg_operand): Prototype it.

2000-01-29 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>

	* t-c4x: Change qi,qf,di,df into si,sf,hi,hf to generate same
		object names as libgcc2.c.
	* libgcc.S: Use newly defined names.

Fri Jan  7 19:48:04 CET 2000  Jan Hubicka  <jh@suse.cz>
	* sbitmap.c (sbitmap_first_set_bit, sbitmap_last_set_bit): New
	function.
	* sbitmap.h (sbitmap_first_set_bit, sbitmap_last_set_bit): Declare.
	* basic_block.h (FLOW_LOOP_FIRST_BLOCK): New macro.
	(FLOW_LOOP_LAST_BLOCK): Likewise.

2000-01-21  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* basic-block.h (struct loop): New fields 'first' and 'last'.
	* flow.c (flow_loops_find): Compute loop->first and loop->last.
	(flow_loops_dump): Use loop->first to check for NOTE_INSN_LOOP_BEG
	and loop->last to check for NOTE_INSN_LOOP_END.

Fri Jan 28 10:57:58 2000  Jason Eckhardt  <jle@cygnus.com>

	* predict.c (estimate_probability): Use the new FIRST and LAST fields
	of the loop descriptor rather than HEADER and LATCH. Also added
	missing break statements as well making some coding style modifications
	as suggested by Michael Hayes.

2000-01-28  Richard Henderson  <rth@cygnus.com>

	* flow.c (find_basic_blocks): Remove do_cleanup argument.
	Break out that code ...
	(cleanup_cfg): ... here.
	(commit_one_edge_insertion): Detect a return instruction being
	emitted to an edge.  Emit a barrier following; clear fallthru.
	(commit_edge_insertions): Verify CFG consistency.
	* function.c (expand_function_start): Kill unused variable.
	(expand_function_end): Likewise.
	(thread_prologue_and_epilogue_insns): Use insert_insn_on_edge
	to insert the epilogue.

	* gcse.c (gcse_main): Adjust for find_basic_blocks change.
	(delete_null_pointer_checks): Likewise.
	* output.h: Likewise.
	* reg-stack.c (reg_to_stack): Likewise.
	* toplev.c (rest_of_compilation): Likewise.  Run
	thread_prologue_and_epilogue_insns after rebuilding the CFG.

2000-01-28  Richard Henderson  <rth@cygnus.com>

	* Makefile.in (flow.o): Revert 24 Jan change.
	* flow.c (mark_regs_live_at_end): Likewise.  Force BLKmode
	FUNCTION_VALUE result to DECL_RESULT's mode.

	* haifa-sched.c (schedule_insns): Don't recompute reg info
	after reload.

2000-01-28  Zack Weinberg  <zack@wolery.cumb.org>

	* configure.in: Make --enable-cpplib the default.
	* configure: Regenerate.
	* gcc.dg/990119-1.c: No longer expected to fail.

2000-01-28  Bernd Schmidt  <bernds@cygnus.co.uk>

	* jump.c (jump_optimize_1): Delete an optimization that is also done
	by merge_blocks in flow.

2000-01-28  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* diagnostic.c (build_message_string, output_printf,
	line_wrapper_printf): Add ATTRIBUTE_PRINTF_*.
	(build_location_prefix): Fix non-literal format string.

2000-01-27  Richard Henderson  <rth@cygnus.com>

	* alpha.md (trunctfsf2): New.

2000-01-27  Andrew Hobson  <ahobson@eng.mindspring.net>

	* configure.in (alpha-dec-osf5): Enable MASK_SUPPORT_ARCH.

2000-01-27  Zack Weinberg  <zack@wolery.cumb.org>

	* cppinit.c (cpp_handle_option): Recognize C++ comments under
	-std=gnu89.
	* cpplib.c (skip_block_comment, skip_line_comment): Split code
	out of...
	(skip_comment) ... here.  Permit C++ comments in system
	headers always.  Warn about C++ comments in user code under
	-std=gnu89 -pedantic.
	(copy_comment): Use skip_comment.
	(cpp_skip_hspace, cpp_get_token): skip_comment can no longer
	return EOF.
	(consider_directive_while_skipping, do_else, do_endif): Call
	validate_else unconditionally.
	(validate_else): Check CPP_PEDANTIC here.  Accept non-comment
	text after the conditional in a system header.
	* cpplib.h (struct cpp_buffer): Add flag
	warned_cplusplus_comments.

2000-01-27  Geoffrey Keating  <geoffk@cygnus.com>

	* emit-rtl.c (unshare_all_rtl): Unshare virtual parameters too.
	Use unshare_all_rtl_1.
	(unshare_all_rtl_again): New function.
	(unshare_all_rtl_1): New function split out of unshare_all_rtl.

	* function.c (purge_addressof_1): Use unshare_all_rtl_again
	rather than resetting the 'used' flags ourself.

	* toplev.c (rest_of_compilation): Add current_function_decl
	to the unshare_all_rtl call.
	* tree.h: Prototype unshare_all_rtl.
	* rtl.h: Prototype unshare_all_rtl_again here.

2000-01-27  Geoffrey Keating  <geoffk@cygnus.com>

	* genoutput.c (output_prologue): Include ggc.h in generated
	files.
	* Makefile.in (insn-output.o): Depends on ggc.h.

2000-01-27  Ian Dall  <ian@sibyl.beware.dropbear.id.au>
	    Hans-Peter Nilsson  <hp@bitrange.com>

	* ns32k/xm-ns32k.h (memcpy, memset, memcmp): Delete.
	Remove redundant include of xm-ns32k.h.
	* ns32k/xm-genix.h (memcpy, memset, memcmp): Add definitions.
	Remove redundant include of xm-ns32k.h.
	* ns32k/xm-netbsd.h (memcpy, memset, memcmp): No longer undefine.
	Remove redundant include of xm-ns32k.h.
	* ns32k/netbsd.h (TARGET_DEFAULT): Enable multiply-add instructions.

	* ns32k/ns32k.h: Update comment on multiply-add instructions.
	(TARGET_SWITCHES): Add documentation strings.
	(DWARF_FRAME_REGNUM): Override default definition.
	(REG_CLASS_CONTENTS): Add comments.
	(SUBSET_P): Format to reduce line length.
	(SMALL_REGISTER_CLASSES): Make a run time option.
	(GO_IF_NONINDEXED_ADDRESS): Reformat.
	(GO_IF_LEGITIMATE_ADDRESS): Ensure that cfun is non NULL before
	dereferencing it.  Braces to avoid "ambiguous else" were misplaced.
	(regclass_map): fix typo in comment.
	* ns32k/ns32k.c: Add spaces before parentheses for consistant style.
	Prefer gen_rtx_FOO(...) to gen_rtx(FOO,...).
	(trace, reg_or_mem_operand): Delete, unused function.
	(calc_address_cost): Small offsets are cheaper than large ones.
	(expand_block_move): Generate more efficient code when bytes is a
	known at compile time.
	* ns32k/ns32k.md: Alternate constraints for multiply-add instructions.
	(udivmodsi4, udivmodhi4, udivmodqi4): Use nonimmediate_operand
	instead of reg_or_mem_operand.

	* ns32k/ns32k.md: Use nonimmediate_operand or stricter for outputs,
	not general_operand.  Similarly use "=rm" or stricter, not "=g".
	For input operands, use stricter constraints than "g" if not
	general_operand.  Similarly use stricter predicate than
	"general_operand" when stricter constraints than "g" are present,
	except for matching constraints.
	(movstrsi): Use "memory_operand" for operands 0 and 1.
	(truncsiqi2, truncsihi2, trunchiqi2): Remove.
	(udivmoddisi4_internal): Use nonimmediate_operand for operand 0,
	not reg_or_mem_operand.
	(udivmoddisi4): Ditto.
	Use nonimmediate_operand for operand 1, not reg_or_mem_operand.
	Use nonimmediate_operand for operand 3, not register_operand.
	(udivmoddiqi4_internal): Use register_operand for operand 1, not
	reg_or_mem_operand.

2000-01-27  Fred Fish  <fnf@be.com>

	* gthr-posix.h: Fix typo; compatibily -> compatibility.
	* gthr-single.h: Likewise.
	* gthr-solaris.h: Likewise.
	* gthr-vxworks.h: Likewise.
	* gthr-win32.h: Likewise.
	* gthr.h: Likewise.

2000-01-27  Zack Weinberg  <zack@wolery.cumb.org>

	* cppinit.c: Add " (cpplib)" to end of string printed by
	-v / --version.

2000-01-27  Richard Henderson  <rth@cygnus.com>

	* alpha.c (alpha_emit_conditional_move): Use VOIDmode when
	testing for a signed comparison.
	(alpha_emit_floatuns): New.
	* alpha-protos.h: Declare it.
	* alpha.md (floatunsdisf2, floatunsdidf2): New.
	(extendsfdf2): Tidy.

2000-01-27  Jakub Jelinek  <jakub@redhat.com>

	* config/sparc/linux64.h (CC1_SPEC): If compiling -m32 with -g but
	no -g option specifying debugging format, default to -gstabs+.

Wed Jan 26 22:19:14 1999  J"orn Rennecke  <amylaar@cygnus.co.uk>

	* calls.c (special_function_p): New argument fork_or_exec.
	(expand_call): When profile_arc_flag is set and the function
	is in the fork_or_exec group, call __bb_fork_func first.
	* libgcc2.c, _bb module (__bb_fork_func): New function.
	(__bb_exit_func): If fcntl F_SETLKW is available, use it to lock
	output file.
	* config/svr4.h (TARGET_HAS_F_SETLKW): Define.
	* tree.h (special_function_p): Update prototype.

2000-01-26  Richard Henderson  <rth@cygnus.com>

	* alpha.c (alpha_split_tfmode_pair): New.
	* alpha-protos.h: Declare it.
	* alpha.md (abstf2, negtf2): New.
	(movtf insn): Add input G constraint.
	(movtf splitter): Use alpha_split_tfmode_pair.

2000-01-26  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* i386/cygwin.h: PROTO -> PARAMS.

2000-01-26  Jakub Jelinek  <jakub@redhat.com>

	* config/sparc/sparc.c (sparc_emit_float_lib_cmp): Handle
	TARGET_ARCH32 again. Handle ORDERED, UN* and LTGT comparisons
	using _Qp_cmp/_Q_cmp and testing the return value.
	(print_operand): Call reverse_condition_maybe_unordered if
	we are handling CCFPmode or CCFPEmode.
	Handle ORDERED, UN* and LTGT comparisons.
	* config/sparc/sparc.md (cmptf): Use even on TARGET_ARCH32
	if not TARGET_HARD_QUAD.
	(seq, sne, sgt, slt, sge, sle, beq, bne, bgt, blt, bge, ble,
	bunordered, bordered, bungt, bunlt, buneq, bunge, bunle, bltgt):
	Call sparc_emit_float_lib_cmp even on TARGET_ARCH32.
	Adjust gen_b* calls so that they reflect return comparison of
	sparc_emit_float_lib_cmp.

2000-01-26  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>

	* config/alpha/alpha.c (alpha_emit_xfloating_cvt): Do not assume
	incoming operands array is large enough for one more operand.
	(alpha_emit_xfloating_arith): Likewise.

2000-01-25  Zack Weinberg  <zack@wolery.cumb.org>

	* fixinc/Makefile.in (machname.h): SunOS 4 sed can't handle a
	file with one line and no trailing newline.
	Patch by Kaveh Ghazi <ghazi@caip.rutgers.edu>.
	* fixinc/fixtests.c (machine_name_test): Fix fencepost error
	checking if the match is on the line.
	* fixinc/gnu-regex.c: Provide regerror not __regerror.

2000-01-25  Richard Henderson  <rth@cygnus.com>

	* sparc.c (output_cbranch): Fix accidental squashing of the
	fp branch pre-delay nop.

2000-01-25  Richard Henderson  <rth@cygnus.com>

	* tree.def (UNNE_EXPR): Remove.
	* c-typeck.c (build_binary_op): Don't handle it.
	* expr.c (expand_expr, do_jump, do_store_flag): Likewise.

	* rtl.def (UNNE): Remove.
	(LTGT): Add.
	* jump.c (reverse_condition): Update accordingly.
	(swap_condition): Likewise.
	(comparison_dominates_p): Handle unordered comparisons.
	(reverse_condition_maybe_unordered): New.
	* rtl.h (reverse_condition_maybe_unordered): Declare.

	* sparc.c (select_cc_mode): Update for UNNE/LTGT.
	(output_cbranch): Use reverse_condition_maybe_unordered and LTGT.
	* sparc.h (REVERSIBLE_CC_MODE): Always true.  Update docs.
	* sparc.md (bltgt): New.

2000-01-25  Nick Clifton  <nickc@redhat.com>

	* emit-rtl.c (emit_insn): Only check machine class insns for
	improper emission of a RETURN.

2000-01-25  Richard Henderson  <rth@cygnus.com>

	* Makefile.in (flow.o): Depend on $(EXPR_H).
	* flow.c (mark_regs_live_at_end): Use hard_function_value, i.e.
	duplicate the structure of diddle_return_value for keeping regs live.

2000-01-26  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* loop.c (current_loop_info): Delete.
	(consec_sets_invariant_p): Add loop argument, update callers.
	(get_condition_for_loop): Likewise.
	(count_nonfixed_reads, update_giv_derive): Likewise.
	(simplify_giv_expr, general_induction_var): Likewise.
	(consec_sets_giv, recombine_givs): Likewise.
	(move_movables): Delete loop_start and loop_end arguments,
	add loop argument, and update callers.
	(find_mem_givs, check_final_value): Likewise.
	(record_giv, maybe_eliminate_biv, maybe_eliminate_biv_1): Likewise.
	(loop_invariant_p): Rename from invariant_p, add loop argument, and
	update callers.
	(basic_induction_var): Add loop argument, delete loop_level argument,
	and update callers.
	* unroll.c (iteration_info): Delete loop_start and loop_end arguments,
	add loop argument, and update callers.
	(find_splittable_regs, find_splittable_givs): Likewise.
	(reg_dead_after_loop, loop_find_equiv_value): Likewise.
	(final_biv_value, final_giv_value, back_branch_in_range_p): Likewise.
	(biv_total_increment): Delete loop_start and loop_end arguments;
	update callers.
	(precondition_loop_p): Delete loop_start and loop_info arguments;
	update callers.
	* loop.h (get_condition_for_loop): Add loop argument.
	(biv_total_increment): Delete loop_start and loop_end arguments.
	(precondition_loop_p): Delete loop_start and loop_info arguments;
	add loop argument.
	(final_biv_value): Delete loop_start and loop_end arguments;
	add loop argument.
	(final_giv_value, back_branch_in_range_p): Likewise.

2000-01-25  Gavin Romig-Koch  <gavin@cygnus.com>

	* config/mips/mips.h (LEGITIMATE_CONSTANT_P): Fix for mips16.

2000-01-25  Gavin Romig-Koch  <gavin@cygnus.com>

	* Makefile.in (c-gperf.h) : Change the "See" pointer to
	point to the new "generated_files" doc.

2000-01-25  Clinton Popetz  <cpopetz@cygnus.com>

	* config/fp-bit.c (_unord_f2): Fix typo.

2000-01-25  Zack Weinberg  <zack@wolery.cumb.org>

	* c-common.c, c-decl.c, c-lang.c, c-lex.c, c-parse.in, c-pragma.c,
	c-typeck.c, objc/objc-act.c: Remove all references to obstack
	functions obsoleted by GC, such as push_obstacks_nochange,
	end_temporary_allocation, savealloc, saveable_tree_cons, etc.
	and code which existed only to decide whether or not to call
	them.  Remove now-unused NESTED argument from start_function;
	all callers changed.  Do not change behavior based on ggc_p.
	The use of the ixp_obstack in c-iterate.c and the util_obstack
	in objc/objc-act.c remain; these are not obsoleted by garbage
	collection.
	* c-tree.h: Update prototype for start_function.

	* c-parse.y, c-parse.c, objc/objc-parse.c, objc/objc-parse.y: Rebuild.

2000-01-25  Clinton Popetz  <cpopetz@cygnus.com>

	* config/mips/mips.md (zero_extendsidi2_internal): Disable for
	mips16.

2000-01-25  Richard Henderson  <rth@cygnus.com>

	* sparc-protos.h (select_cc_mode): Declare.
	* sparc.c (select_cc_mode): New.  Handle unordered compares.
	(output_cbranch): Always reverse via code change.  Handle
	unordered compares.  Factor tests and string updates.
	* sparc.h (SELECT_CC_MODE): Split out to select_cc_mode.
	(REVERSIBLE_CC_MODE): Also exclude CCFPmode.
	* sparc.md (bunordered, bordered): New.
	(bungt, bunlt, buneq, bunge, bunle): New.

2000-01-25  Richard Henderson  <rth@cygnus.com>

	* dwarf2out.c (dwarf2out_init): Use ggc_add_rtx_varray_root.
	* ggc-common.c (ggc_add_rtx_varray_root): New.
	(ggc_mark_rtx_varray): New.
	(ggc_mark_rtx_varray_ptr): New.  Shift all ggc_mark_foo_ptr
	functions down below ggc_mark_foo.
	* ggc.h (ggc_add_rtx_varray_root, ggc_mark_rtx_varray): Declare.

2000-01-25  Richard Henderson  <rth@cygnus.com>

	* alpha.c (secondary_reload_class): Don't allocate a secondary
	for integral mode memories into FLOAT_REGS.  Rearrange the more
	complicated memory expression inward.

2000-01-25  Zack Weinberg  <zack@wolery.cumb.org>

	* inclhack.def: Fixes to play nicer with FreeBSD, and
	corrections to comments.
	(cxx_unready): Add select expression.
	(irix_sockaddr): Add bypass expression.
	(machine_ansi_h_va_list): New fix.
	(stdio_va_list): No need to edit _BSD_VA_LIST_.
	Split out addition of "#include <stdarg.h>" to...
	(stdio_stdarg_h): ... here.
	(systypes_for_aix): Rename to systypes_stdlib_size_t.  Apply
	to stdlib.h also.  Do not munge _BSD_SIZE_T_.
	(sysz_stdlib_for_sun): Delete duplicate fix for unprotected
	size_t.
	(ultrix_ifdef): Tighten up select expression.

	* fixincl.tpl: Exorcise 'exesel'.  Rewrite calculations of
	re_ct and max_mach to avoid use of shell.  Make printed names
	match names in inclhack.def.  Use static copyright date.
	Don't count c_test and test expressions as requiring regex_t
	slots.  Add some commentary.
	* inclhack.tpl: Do not include the 'This script contains N
	fixup scripts' line if PROGRAM is defined.  Use static
	copyright date.

2000-01-24  Jason Merrill  <jason@casey.cygnus.com>

	* dwarf2out.c: include "varray.h", not dyn-string.h.
	(ASM_OUTPUT_DWARF2_ADDR_CONST, ASM_NAME_TO_STRING): Lose.
	(addr_const_to_string, addr_to_string): Lose.
	(ASM_OUTPUT_DWARF_ADDR_CONST): Copy from dwarfout.c.
	(struct dw_val_struct): val_addr is now an rtx.
	(add_AT_addr, AT_addr, free_AT, output_aranges): Adjust.
	(used_rtx_varray): New varray.
	(dwarf2out_init): Initialize it.
	(save_rtx): New fn.
	(mem_loc_descriptor, add_const_value_attribute): Call it instead of
	addr_to_string.
	* arm/telf.h, arm/unknown-elf.h, mn10200.h, mn10300.h,
	sparc/sp64-elf.h: Remove definition of ASM_OUTPUT_DWARF2_ADDR_CONST.
	* Makefile.in (dwarf2out.o): Update dependencies.

2000-01-24  Richard Henderson  <rth@cygnus.com>

	* i386.c (i386_dwarf_output_addr_const): New.
	* i386.h (ASM_OUTPUT_DWARF_ADDR_CONST): New.

	* dwarf2out.c (mem_loc_descriptor): Call ASM_SIMPLIFY_DWARF_ADDR
	if defined.
	* dwarfout.c (output_mem_loc_descriptor): Likewise.
	* i386.c (i386_simplify_dwarf_addr): New.
	* i386.h (ASM_SIMPLIFY_DWARF_ADDR): New.

Mon Jan 24 16:56:10 2000  Jim Wilson  <wilson@cygnus.com>

	* dwarf2out.c (gen_struct_or_union_type_die): Set complete if
	TYPE_STUB_DECL is NULL.

2000-01-24  Richard Henderson  <rth@cygnus.com>

	* builtins.c (expand_tree_builtin): Move ...
	* c-common.c (expand_tree_builtin): ... here.

2000-01-25  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* loop.h (LOOP_INFO): New accessor macro.
	* basic-block.h (struct loop): Rename field `info' to `aux'.
	* loop.c (scan_loop): Replace loop->info with LOOP_INFO (loop).
	(prescan_loop, strength_reduce, check_dbra_loop, insert_bct): Likewise.
	* unroll.c (loop_iterations, unroll_loop): Likewise.

2000-01-24  Christopher Faylor <cgf@cygnus.com>

	* config/i386/t-cygwin: Accomodate new winsup directory layout
	when searching for include files.

2000-01-24  Richard Henderson  <rth@cygnus.com>

	* rtl.def: Add unordered fp comparisions.
	* tree.def: Likewise.
	* tree.h: Add ISO C 9x unordered fp comparision builtins.

	* builtins.c (expand_tree_builtin): New function.
	* c-typeck.c (build_function_call): Use it.
	(build_binary_op): Support unordered compares.
	* c-common.c (c_common_nodes_and_builtins): Add unordered compares.

	* combine.c (known_cond): Handle reverse_condition returning UNKNOWN.
	(reversible_comparison_p): Allow UNORDERED/ORDERED to be reversed.
	* cse.c (fold_rtx): Check FLOAT_MODE_P before reversing.
	(record_jump_equiv): Handle reverse_condition returning UNKNOWN.
	* jump.c (reverse_condition): Don't abort for UNLE etc, but
	return UNKNOWN.
	(swap_condition): Handle unordered compares.
	(thread_jumps): Check can_reverse before reversing.
	* loop.c (get_condition): Likewise.  Allow UNORERED/ORDERED to be
	reversed for FP.

	* optabs.c (can_compare_p): New argument CODE.  Verify branch or
	setcc is present before acking for cmp_optab.  Update all callers.
	(prepare_float_lib_cmp, init_optabs): Handle UNORDERED.
	* expmed.c (do_cmp_and_jump): Update for can_compare_p.
	* expr.c (expand_expr): Likewise.  Support unordered compares.
	(do_jump, do_store_flag): Likewise.
	* expr.h (enum libfunc_index): Add unordered compares.

	* Makefile.in (FPBIT_FUNCS): Add _unord_sf.
	(DPBIT_FUNCS): Add _unord_df.
	* config/fp-bit.c (_unord_f2): New.
	* fp-test.c (main): Try unordered compare builtins.

	* alpha-protos.h (alpha_fp_comparison_operator): Declare.
	* alpha.c (alpha_comparison_operator): Check mode properly.
	(alpha_swapped_comparison_operator): Likewise.
	(signed_comparison_operator): Likewise.
	(alpha_fp_comparison_operator): New.
	(alpha_emit_conditional_branch): Handle unordered compares.
	* alpha.h (PREDICATE_CODES): Update.
	* alpha.md (fp compares): Use alpha_fp_comparison_operator.
	(bunordered, bordered): New.

2000-01-24  Richard Henderson  <rth@cygnus.com>

	* alpha.c (alpha_emit_xfloating_cvt): Thinko in operand manipulation.
	* alpha.md (movtf): New expander, insn, and splitter.

Mon Jan 24 19:49:47 MET 2000  Jan Hubicka  <jh@suse.cz>

	* reg-stack.c (subst_stack_regs_pat): Handle correctly USEs of
	dead registers.

Mon Jan 24 17:37:31 MET 2000  Jan Hubicka  <jh@suse.cz>

	* i386.h (FIRST_PSEUDO_REGISTER): Set to 21.
	(FIXED_REGISTERS, CALL_USED_REGISTERS,
	 REG_ALLOC_ORDER): Add frame pointer
	(FRAME_POINTER_REGNUM): Set to 20
	(HARD_FRAME_POINTER_REGNUM): New macro.
	(ELIMINABLE_REGS): Eliminate ARG_POINTER and FRAME_POINTER
	to HARD_FRAME_POINTER.
	(REGNO_OK_FOR_BASE_P): Accept FRAME_POINTER_REGNUM
	(REG_OK_FOR_INDEX_NONSTRICT_P): Likewise.
	(REG_OK_FOR_BASE_NONSTRICT_P): Likewise.
	(HI_REGISTER_NAMES): Add "frame".
	(CAN_ELIMINATE): Handle FRAME_POINTER_REGNUM elimination.
	(debug_reg): Handle FRAME_POINTER_REGNUM.
	(reg_class): Add arg pointer and frame pointer to NON_Q_REGS,
	GENERAL_REGS and INDEX_REGS.
	* i386.c (SAVED_REGS_FIRST): new macro.
	(AT_BP): Use hard_frame_pointer_rtx instead of frame_pointer_rtx
	(ix86_decompose_address, memory_address_length): Likewise.
	(regclass_map): Add frame pointer.
	(call_insn_operand): Handle frame_pointer_rtx.
	(reg_no_sp_operand): Likewise.
	(ix86_decompose_address): Handle frame_pointer_rtx as stack_pointer_rtx.
	(print_operand, legitimize_pic_address): Fix formating.
	(ix86_compute_frame_size): Make static, update prototype, new
	parameters padding1, padding2, use ix86_nsaved_regs, use
	stack_alignment_needed.
	(ix86_initial_elimination_offset): Handle FRAME_POINTER_REGNUM
	to HARD_FRAME_POINTER_REGNUM conversions.
	(ix86_expand_prologue): Handle SAVED_REGS_FIRST prologues.
	(ix86_expand_epilogue): Handle SAVED_REGS_FIRST epilogues.
	(print_reg): Abort on FRAME_POINTER_REGNUM

Mon Jan 24 16:50:08 MET 2000  Jan Hubicka  <jh@suse.cz>

	* i386.h (PREDICATE_CODES): Add aligned_operand.
	* i386.c (aligned_operand): New function.
	(ix86_aligned_p): Kill.
	* i386.md (movhi_1): Emit mov for aligned operands.
	(promoting peep2s): Use aligned_operand.

2000-01-23  Zack Weinberg  <zack@wolery.cumb.org>

	* fixinc/fixfixes.c (fix_char_macro_uses): Correct regular
	expression to allow underscores in macro names.
	(fix_char_macro_defines): Increment scanning pointer.

2000-01-23  Richard Henderson  <rth@cygnus.com>

	* alpha/osf.h (TARGET_HAS_XFLOATING_LIBS): Define.
	* alpha/osf5.h: New file.
	* configure.in (alpha-*-osf5): Add it to tm_file.

	* emit-rtl.c (operand_subword): Support TFmode on a 64-bit target.

	* alpha-protos.h (alpha_emit_xfloating_arith): Declare.
	(alpha_emit_xfloating_cvt, function_arg): Declare.
	* alpha.c (alpha_emit_conditional_branch): Call
	alpha_emit_xfloating_compare for TFmode compares.
	(alpha_lookup_xfloating_lib_func): New.
	(alpha_compute_xfloating_mode_arg): New.
	(alpha_emit_xfloating_libcall): New.
	(alpha_emit_xfloating_arith): New.
	(alpha_emit_xfloating_compare): New.
	(alpha_emit_xfloating_cvt): New.
	(print_operand): Add default abort case.
	(function_arg): Mind FUNCTION_ARG_PASS_BY_REFERENCE.
	* alpha.h (TARGET_HAS_XFLOATING_LIBS): New.
	(BIGGEST_ALIGNMENT): Increase to 128 bits.
	(RETURN_IN_MEMORY): True for TF/TCmode.
	(ALPHA_ARG_SIZE): TF/TCmode is passed indirect.
	(FUNCTION_ARG): Move to function_arg.
	(FUNCTION_ARG_PASS_BY_REFERENCE): New.
	(ASM_OUTPUT_LONG_DOUBLE): New.
	(ASM_OUTPUT_DOUBLE): Always output bits.
	* alpha.md (addtf3, divtf3, multf3, subtf3, cmptf): New.
	(fix_trunctfdi2, floatditf2, floatunsditf2): New.
	(extenddftf2, trunctfdf2): New.

2000-01-23  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>

	* config/sparc/sol2-sld-64.h (TRANSFER_FROM_TRAMPOLINE): Moved...
	* config/sparc/sol2.h: ... here.

2000-01-24  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* basic-block.h (struct loops): New field `levels'.
	* flow.c (flow_loops_level_compute): Traverse all outer loops.
	(flow_loop_level_compute): Initialise level to 1.
	(flow_loops_find): Set loops->levels.
	(flow_loops_dump): Print loops->levels.

2000-01-23  Richard Henderson  <rth@cygnus.com>

	* libgcc2.c (dwarf_reg_size_table): Size with DWARF_FRAME_REGISTERS.
	(throw_helper): Iterate over DWARF_FRAME_REGISTERS.

2000-01-23  Richard Henderson  <rth@cygnus.com>

	* i386.c (dbx_register_map, svr4_dbx_register_map): New.
	* i386.h (DBX_REGISTER_NUMBER): Use them.
	* i386/beos-elf.h, i386/freebsd-elf.h, i386/i386elf.h: Likewise.
	* i386/linux.h, i386/osfrose.h, i386/ptx4-i.h: Likewise.
	* i386/rtemself.h, i386/sco5.h, i386/sysv4.h: Likewise.
	* i386/sequent.h: Kill incorrect comment.

2000-01-23  Mark Mitchell  <mark@codesourcery.com>

	* ggc-page.c (struct page_entry): Make `context_depth' an
	`unsigned short'.
	(struct globals): Likewise.

2000-01-23  Clinton Popetz  <cpopetz@cygnus.com>

	* loop.c (check_dbra_loop): When checking a loop for
	reversability, check the source of any stores to ensure
	they don't depend on an initial value.

2000-01-23  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* config/c4x/c4x.h (ASM_OUTPUT_BSS): Redefine.

2000-01-22  Zack Weinberg  <zack@wolery.cumb.org>

	* fixinc/fixincl.c: Move declarations of 'pz_fname' and
	'pz_scan' into scope of entire function.  Only affects
	compiles with -DDEBUG.

2000-01-22  Alan Modra <alan@SPRI.Levels.UniSA.Edu.Au>

	* config/elfos.h (UNIQUE_SECTION): Restore uninitialised data
	section naming to that prior to 2000-01-07 patch.
	* config/mips/elf.h (UNIQUE_SECTION): Ditto.
	* config/mips/elf64.h (UNIQUE_SECTION): Ditto.
	* config/mips/iris6gld.h (UNIQUE_SECTION): Ditto.
	* config/i386/interix.c (UNIQUE_SECTION): Ditto.
	* config/i386/winnt.c (UNIQUE_SECTION): Ditto.

2000-01-22  Bernd Schmidt  <bernds@cygnus.co.uk>

	* config/arm/arm.c (soft_df_operand): Reject SUBREGs containing a
	constant.

2000-01-21  Jim Wilson  <wilson@cygnus.com>

	* fixinc/inclhack.tpl: Test for directory before trying to cd into it.
	* fixinc/fixincl.sh, fixinc/inclhack.sh: Regenerate.

2000-01-21  Zack Weinberg  <zack@wolery.cumb.org>

	* cpphash.c (change_newlines): Delete function.
	(struct argdata): Delete 'newlines' and 'use_count' fields.
	(macroexpand): Remove code referencing those fields.

2000-01-22  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* loop.c (loops_info): New variable.
	(loop_optimize): Allocate loops->array and free it on exit.
	Allocate memory for loops_info and assign to each loop,
	replacing alloca.
	(find_and_verify_loops): Do not allocate loops->array.

2000-01-21  Zack Weinberg  <zack@wolery.cumb.org>

	* fixinc/fixfixes.c (machine_name_fix): Don't free 'scratch'.

2000-01-21  Jakub Jelinek  <jakub@redhat.com>

	* config/sparc/sparc.md (movsi_pic_label_ref): Avoid creating new
	pseudos if expanded after first flow.
	(movdi_pic_label_ref): Likewise.

2000-01-20  Richard Henderson  <rth@cygnus.com>

	* jump.c (jump_optimize_1): Don't do addr_vec optimizations at -O0.

2000-01-20  Zack Weinberg  <zack@wolery.cumb.org>

	* Makefile.in (fixinc.sh): Depend on specs.
	* fixinc/Makefile.in: Add rule to create machname.h.
	(fixlib.o): Depend on machname.h.
	* fixinc/fixtests.c (machine_name): New test.
	* fixinc/fixfixes.c (machine_name): New fix.
	* fixinc/fixlib.c (mn_get_regexps): New helper function for
	the machine_name test and fix.
	* fixinc/fixlib.h: Prototype it.
	* fixinc/inclhack.def (machine_name): Use the C test and fix.
	* fixinc/fixincl.x, fixinc/inclhack.sh: Rebuild.

	* gcc.c (do_spec_1) [case P]: Take care not to create
	identifiers with three leading or trailing underscores.

	* fixinc/Makefile.in (FIXINC_DEFS): Add -DIN_GCC.
	(fixincl): Don't specify libraries twice on link line.
	(gnu-regex.o): Remove special rule.
	* fixinc/gnu-regex.c: Define REGEX_MALLOC if C_ALLOCA was
	defined by config.h.  Do not define _REGEX_RE_COMP.
	(regcomp): Allocate and initialize a fastmap.
	* fixinc/gnu-regex.h: Do not define _REGEX_RE_COMP.

2000-01-20  Brad Lucier  <lucier@math.purdue.edu>

	* Makefile.in (predict.o): Depend on $(EXPR_H), not expr.h.

2000-01-19  Richard Henderson  <rth@cygnus.com>

	* flow.c (propagate_block): Replace FIRST, LAST and BNUM
	arguments with BB.  Update all callers.  Tidy line wrapping.

2000-01-19  Clinton Popetz  <cpopetz@cygnus.com>

	* emit-rtl.c (try_split): Return last_insn if we split the
	last_insn.

Thu Jan 20 01:01:23 MET 2000  Jan Hubicka  <jh@suse.cz>

	* i386-protos.h (ix86_compute_frame_size): Remove prototype.
	(ix86_initial_elimination_offset): Declare.
	* i386.c (ix86_nsaved_regs): Break out from ...
	(ix86_can_use_return_insn_p): ... here.
	(ix86_emit_save_regs): Break out from ...
	(ix86_expand_prologue): ... here.
	(ix86_emit_epilogue_esp_adjustment, ix86_emit_restore_regs): Break
	out from ...
	(ix86_expand_epilogue): ... here.
	(ix86_compute_frame_size): Make static, add prototype.
	(ix86_initial_elimination_offset): Break out from ...
	* i386.h (INITIAL_ELIMINATION_OFFSET): ... here.

2000-01-19  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* recog.h (OUT_FCN): Delete.

	* vax.md: Call `get_insn_template' instead of OUT_FCN.

2000-01-19  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* cppalloc.c: PROTO -> PARAMS.
	* cpperror.c: Likewise.
	* cppfiles.c: Likewise.
	* cpplib.c: Likewise.
	* cpplib.h: Likewise.

	* config/arm/arm-protos.h: PROTO -> PARAMS.
	* config/arm/arm.c: Likewise.
	* config/c4x/c4x.c: Likewise.
	* config/fr30/fr30-protos.h: Likewise.
	* config/nextstep.c: Likewise.
	* config/pa/pa.c: Likewise.
	* config/pj/pj.c: Likewise.
	* config/rs6000/rs6000.c: Likewise.
	* config/v850/v850-protos.h: Likewise.
	* config/v850/v850.c: Likewise.

2000-01-19  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* i370-protos.h: New file.

	* i370.c: Include tm_p.h.  Fix compile time warnings.

	* i370.h: Move prototypes to i370-protos.h.  Fix compile time
	warnings.

	* i370.md: Likewise.

2000-01-19  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* real.c (enan, einan, eiisnan, eiisneg, make_nan): Wrap in NANS.
	(target_isinf, target_isnan, eisnan): Mark parameter with
	ATTRIBUTE_UNUSED.
	(eiisinf): Wrap in INFINITY.
	(etoe113, etoe64, etoe53, etoe24): Wrap label `nonorm' in INFINITY.
	(ibmtoe): Remove unused variable `rndsav'.

Wed Jan 19 20:23:06 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

	* sh.h (PASS_IN_REG_P): Remove extraneous paranthesis.
	(GO_IF_LEGITIMATE_ADDRESS): Added missing tab.

2000-01-19  Zack Weinberg  <zack@wolery.cumb.org>

	* fixinc/Makefile.in: Correct dependencies of fixincl and fixincl.o.
	* fixinc/fixfixes.c (IO_use, CTRL_use, IO_defn, CTRL_defn): New fixes.
	(fix_char_macro_defines, fix_char_macro_uses): New functions.

	* fixinc/fixlib.c (is_cxx_header): Do the text scan with a regexp.
	Recognize Emacs mode markers also.
	* fixinc/fixtests.c (else_endif_label): Fix bug in recognition of
	C++ comments in C++ headers.  Call is_cxx_header only if
	necessary.

	* fixinc/inclhack.def (avoid_bool): Add select for the problem and
	bypass for ncurses.
	(bsd43_io_macros, io_def_quotes, ioctl_fix_ctrl): Replace with...
	(io_def_quotes, io_use_quotes, ctrl_def_quotes, ctrl_use_quotes):
	... these, which use the new C fixes.
	(math_exception): Escape literal '+' in bypass expression.

	* fixinc/fixincl.x, fixinc/fixincl.sh, fixinc/inclhack.sh:
	Regenerate.

2000-01-19  Geoff Keating  <geoffk@cygnus.com>

	* rtlanal.c (reg_referenced_p): A CLOBBER of a MEM uses any REGs
	inside the MEM.

2000-01-20  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* loop.c (loop_optimize): Allocate loop_info structure for each loop
	prior to calling scan_loop.

Wed Jan 19 19:54:38 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

	* sh.c (find_barrier, gen_block_redirect): Fix indentation.
	(split_branches, calc_live_regs): Likewise.

Wed Jan 19 19:12:36 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

	* sh.md (fpu_single, fp_mode): New attributes.

2000-01-20  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>

	* loop.c (current_loop_info): Renamed from loop_info_data
	and changed to a pointer.
	(loop_optimize): Allocate loop_info structure for each loop
	and initialise to zero.
	(scan_loop): Set current_loop_info.

	* unroll.c (loop_iterations): Don't abort if REG_USERVAR_P set
	on iteration_var.

2000-01-19  Richard Henderson  <rth@cygnus.com>

	* stupid.c: Die die die.
	* Makefile.in (OBJS): Remove stupid.o.
	(stupid.o): Likewise.

	* except.c (emit_eh_context): Don't emit USEs for stupid.
	* explow.c (probe_stack_range): Likewise.
	* flags.h (obey_regdecls): Remove.
	* flow.c (find_basic_blocks): Don't run try_merge_blocks
	when not optimizing.
	(life_analysis): Limit data collection when not optimizing.
	(mark_regs_live_at_end): Always mark the return value registers.
	(mark_used_regs): Remove dummy RETURN case.
	(print_rtl_with_bb): Don't consult obey_regdecls.
	* function.c (use_variable, use_variable_after): Remove.
	(assign_parms): Consult optimize not obey_regdecls.
	(expand_function_start): Don't emit USEs for stupid.
	(expand_function_end): Likewise.
	* global.c (build_insn_chain): Export.
	* integrate.c (expand_inline_function): Kill return-value USE
	handling code.
	* jump.c (jump_optimize_1): Do simple jump optimizations and
	dead code elimination.
	(calculate_can_reach_end): Remove check_deleted argument.
	(delete_insn): Patch out insns even when not optimizing.
	* local-alloc.c (block_alloc): Don't do tying when not optimizing.
	* rtl.h (use_variable, use_variable_after): Remove declarations.
	(build_insn_chain): Declare.
	* stmt.c (expand_value_return): Don't emit USEs for stupid.
	(expand_end_bindings): Likewise.
	(expand_decl): Likewise.  Consult optimize not obey_regdecls.
	* toplev.c (obey_regdecls): Remove.
	(rest_of_compilation): Don't set it.  Kill stupid in favour of
	flow1, local-alloc, and reload.
	(main): Don't set obey_regdecls.

	* config/nextstep.c (handle_pragma): Likewise.

	* alpha/alpha.md (allocate_stack): Don't emit USEs for stupid.

	* arm/arm.h (CONDITIONAL_REGISTER_USAGE): Don't fix reg 0 for stupid.

2000-01-18  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* alpha-protos.h: PROTO -> PARAMS.
	* alpha.c: Likewise.
	* elf.h: Likewise.
	* h8300.c: Likewise.
	* i386-protos.h: Likewise.
	* i386.c: Likewise.
	* m32r-protos.h: Likewise.
	* m32r.c: Likewise.
	* mips.c: Likewise.
	* mips.md: Likewise.
	* gmon-sol2.c: Likewise.
	* sparc.c: Likewise.

2000-01-18  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* ns32k-protos.h: New file.

	* ns32k.c: Fix compile time warnings.

	* ns32k.h: Move prototypes to ns32k-protos.h.  Fix compile time
	warnings.

	* ns32k.md: Likewise.

2000-01-18  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* vax-protos.h: New file.

	* vax.c: Fix compile time warnings.

	* vax.h: Move prototypes to vax-protos.h.  Fix compile time
	warnings.

	* vax.md: Likewise.

	* vaxv.md: Likewise.

2000-01-18  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* romp-protos.h: New file.

	* romp.c: Fix compile time warnings.

	* romp.h: Move prototypes to romp-protos.h.  Fix compile time
	warnings.

	* romp.md: Likewise.

2000-01-18  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* we32k-protos.h: New file.

	* we32k.c: Fix compile time warnings.

	* we32k.h: Move prototypes to we32k-protos.h.  Fix compile time
	warnings.

2000-01-18  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>

	* calls.c (emit_call_1): Mark parameter with ATTRIBUTE_UNUSED.

	* except.c (eh_regs): Likewise.

	* final.c (output_operand): Likewise.

	* fold-const.c (target_isinf, target_isnan): Likewise.

Tue Jan 18 16:19:55 MET 2000  Jan Hubicka  <hubicka@freesoft.cz>

	* i386.h (BIGGEST_ALIGNMENT): Set to 128.
	(BIGGEST_FIELD_ALIGNMENT): Set to (TARGET_ALIGN_DOUBLE ? 64 : 32)

	* i386.md (memstr): Do not use rep stosb for counts divisible by 4
	when optimize_size.
	(clrstrsi): Rewrite.
	(strsethi, strsetqi): New expanders.
	(strsethi_1, strsetqi_1, rep_stossi, rep_stosqi): New insn patterns.
	(cmpstrsi): Emit compare insn before cmpstrsi_1
	(cmpstrsi_nz): use flags, set type to str, prefix_length to 1.
	(strlensi_1): Likewise.
	(cmpstrsi_1): Likewise; do not output compare.
	(strlen expander): Do not unroll when optimizing for size.
	(*subsi3_carry): Rename to subsi3_carry
	(addqi3_cc): New pattern.
	* i386.h (processor_costs): Add move_ratio field.
	(MOVE_RATIO): Use move_ratio field, set to 3 for OPTIMIZE_SIZE
	* i386.c (*_cost): Set move_ratio.
	(x86_unroll_strlen): Enable for Athlon, PPro and K6 too.
	(x86_expand_strlensi_1): Rewrite the main loop.

2000-01-17  Richard Henderson  <rth@cygnus.com>

	* combine.c (combine_simplify_rtx): Give FLOAT_STORE_FLAG_VALUE a mode.
	* cse.c (find_comparison_args, fold_rtx): Likewise.
	* integrate.c (subst_constants): Likewise.
	* loop.c (get_condition): Likewise.

	* tm.texi (FLOAT_STORE_FLAG_VALUE): Update docs.

	* alpha.h (FLOAT_STORE_FLAG_VALUE): Use REAL_VALUE_ATOF.