From-SVN: r48954

From-SVN: r48625

	* 1750a.md: Add default case in switch.
	* alpha/vms.h (INITIAL_ELIMINATION_OFFSET): Add abort clause in
	if-else statement.
	* dsp16xx.c (print_operand_address): Likewise.
	* i386/osf1elf.h (FUNCTION_PROFILER): Const-ify.
	* ia64.md: Add missing braces.
	* rs6000-protos.h (s8bit_cint_operand): Prototype.
	* s390.h (INITIAL_ELIMINATION_OFFSET): Add abort clause in
        if-else statement.
	* stormy16.h (REG_CLASS_CONTENTS): Add missing braces.
	* v850.h (OUTPUT_ADDR_CONST_EXTRA): Don't issue a `return'.
	* dbxout.c (dbxout_source_file): Move a variable into the scope
	where it is used.
	* final.c (profile_function): Mark parameter with
	ATTRIBUTE_UNUSED.
	* genemit.c (gen_expand): Likewise for generated file.
	* insn-addr.h (INSN_ADDRESSES_NEW): Avoid undefined behavior.

From-SVN: r47812

        * dwarf2out.c (is_cxx): New fn.
        (add_data_member_location_attribute): Check it.
        * dbxout.c (dbxout_type): Only look at BINFO_VPTR_FIELD for C++.

From-SVN: r47483

        * dwarf2out.c (add_data_member_location_attribute): Do the
        right thing for virtual bases.
        * dbxout.c (dbxout_type): For a virtual base, print the offset
        within the vtable.

From-SVN: r47469

	* dbxout.c (dbxout_symbol_location): Update call of alter_subreg.
	* final.c (walk_alter_subreg): Take pointer; update call of alter_subreg.
	(final_scan_insn): Update call of alter_subreg.
	(cleanup_subreg_operands): Likewise.
	(alter_subreg): Rewrite using simplify_subreg.
	(output_address, output_operand): Update call of alter_subreg.
	* output.h (alter_subreg): Update prototype.
	* sdbout.c (sdbout_symbol): Update call of alter_subreg.
	* simplify-rtx.c (simplify_subreg): Copy ORIGINAL_REGNO.
	* Makefile.in (final.o): Add depdendancy on expr.h

From-SVN: r47013

	* dbxout.c (dbxout_symbol_location): Avoid emitting invalid register
	numbers.

From-SVN: r46943

	* c-lang.c (LANG_HOOKS_NAME): New.
	(lang_hooks): Constify.
	(c_init_options): Update.
	(lang_identify): Remove.
	* c-parse.in (language_string): Remove.
	* dbxout.c: Include langhooks.h.
	(dbxout_symbol_location): Update.
	* dwarf2out.c: Include langhooks.h.
	(gen_compile_unit_die): Update.
	* dwarfout.c: Include langhooks.h.
	(prototyped_attribute, output_compile_unit_die): Update.
	* langhooks-def.h (LANG_HOOKS_NAME, LANG_HOOKS_IDENTIFIER_SIZE): New.
	(LANG_HOOKS_INITIALIZER): Update.
	* langhooks.h (struct lang_hooks): New members.  Constify.
	* stringpool.c: Don't include toplev.h.
	(set_identifier_size): Remove.
	* toplev.c (toplev_main): Initialize identifier size.
	(print_version): Update.
	* tree.h (language_string, init_lex, lang_identify,
	set_identifier_size): Remove.
	* Makefile.in: Update dependencies.
	* config/darwin.c: Include langhooks.h.
	(func_name_maybe_scoped): Update.
	* config/darwin.h (ASM_END_FILE): Update.
	* config/nextstep.h (ASM_END_FILE): Update.
	* config/nextstep21.h (ASM_END_FILE): Update.
	* config/i386/sun386.h (ASM_END_FILE): Update.
	* config/rs6000/rs6000.c (ASM_END_FILE): Include langhooks.h.
	(rs6000_output_function_epilogue): Update.
ada:
	* misc.c (LANG_HOOKS_NAME, LANG_HOOKS_IDENTIFIER_SIZE): Override.
	(struct lang_hooks): Constify.
	(language_string, lang_identify): Remove.
	* utils.c (init_decl_processing): Update.
cp:
	* cp-lang.c (LANG_HOOKS_NAME): Override.
	(struct lang_hooks): Constify.
	* lex.c (cxx_init_options): Update.
	(lang_identify): Remove.
	* parse.y (language_string): Remove.
f:
	* com.c (language_string, lang_identify): Remove.
	(struct lang_hooks): Constify.
	(LANG_HOOKS_NAME): Override.
	(init_parse): Update.
java:
	* jcf-parse.c (init_lex): Remove.
	* lang.c (language_string, lang_identify): Remove.
	(struct lang_hooks): Constify.
	(LANG_HOOKS_NAME): Override.
	(init_parse): Update.
objc:
	* objc-act.c (LANG_HOOKS_NAME): Override.
	(struct lang_hooks): Constify.
	(objc_init_options): Update.
	(lang_identify): Remove.

From-SVN: r46874

	* Makefile.in (dbxout.o): Depend on function.h.
	* collect2.c (is_in_list): Hide unused function.
	* dbxout.c: Include function.h.
	(source_label_number, dbxout_source_line, dbxout_source_file,
	dbxout_function_end, dbxout_begin_function): Wrap/move inside
	macros controlling usage.
	* gcc.c (TARGET_EXECUTABLE_SUFFIX): Undef before defining.
	* output.h (exports_section): Prototype.

From-SVN: r46759

2001-10-10  Stan Shebs  <shebs@apple.com>

        * alias.c: Remove uses of "register" specifier in declarations
        of arguments and local variables.
        * c-common.c: Ditto.
        * c-convert.c: Ditto.
        * c-decl.c: Ditto.
        * c-format.c: Ditto.
        * c-semantics.c: Ditto.
        * c-typeck.c: Ditto.
        * caller-save.c: Ditto.
        * calls.c: Ditto.
        * cfg.c: Ditto.
        * cfgbuild.c: Ditto.
        * cfgrtl.c: Ditto.
        * collect2.c: Ditto.
        * combine.c: Ditto.
        * convert.c: Ditto.
        * cppexp.c: Ditto.
        * cppfiles.c: Ditto.
        * cse.c: Ditto.
        * dbxout.c: Ditto.
        * defaults.h: Ditto.
        * df.c: Ditto.
        * dwarf2out.c: Ditto.
        * dwarfout.c: Ditto.
        * emit-rtl.c: Ditto.
        * explow.c: Ditto.
        * expmed.c: Ditto.
        * expr.c: Ditto.
        * final.c: Ditto.
        * fix-header.c: Ditto.
        * floatlib.c: Ditto.
        * flow.c: Ditto.
        * fold-const.c: Ditto.
        * function.c: Ditto.
        * gcc.c: Ditto.
        * gcse.c: Ditto.
        * gen-protos.c: Ditto.
        * genattrtab.c: Ditto.
        * gencheck.c: Ditto.
        * genconfig.c: Ditto.
        * genemit.c: Ditto.
        * genextract.c: Ditto.
        * genflags.c: Ditto.
        * gengenrtl.c: Ditto.
        * genoutput.c: Ditto.
        * genpeep.c: Ditto.
        * genrecog.c: Ditto.
        * gensupport.c: Ditto.
        * global.c: Ditto.
        * gmon.c: Ditto.
        * graph.c: Ditto.
        * haifa-sched.c: Ditto.
        * hard-reg-set.h: Ditto.
        * hash.c: Ditto.
        * integrate.c: Ditto.
        * jump.c: Ditto.
        * lists.c: Ditto.
        * local-alloc.c: Ditto.
        * loop.c: Ditto.
        * mips-tdump.c: Ditto.
        * mips-tfile.c: Ditto.
        * optabs.c: Ditto.
        * prefix.c: Ditto.
        * print-rtl.c: Ditto.
        * read-rtl.c: Ditto.
        * real.c: Ditto.
        * recog.c: Ditto.
        * reg-stack.c: Ditto.
        * regclass.c: Ditto.
        * regmove.c: Ditto.
        * reload.c: Ditto.
        * reload1.c: Ditto.
        * reorg.c: Ditto.
        * resource.c: Ditto.
        * rtl.c: Ditto.
        * rtlanal.c: Ditto.
        * scan.c: Ditto.
        * sched-deps.c: Ditto.
        * sched-rgn.c: Ditto.
        * sdbout.c: Ditto.
        * simplify-rtx.c: Ditto.
        * stmt.c: Ditto.
        * stor-layout.c: Ditto.
        * toplev.c: Ditto.
        * tradcif.y: Ditto.
        * tradcpp.c: Ditto.
        * tree.c: Ditto.
        * unroll.c: Ditto.
        * varasm.c: Ditto.
        * xcoffout.c: Ditto.

From-SVN: r46173

	* c-parse.in (yyerror): Const-ification and/or static-ization.
	* c-typeck.c (push_member_name): Likewise.
	* collect2.c (main): Likewise.
	* dbxout.c (dbxout_parms): Likewise.
	* diagnostic.c (format_with_decl): Likewise.
	* dwarf2out.c (output_ranges): Likewise.
	* dwarfout.c (fundamental_type_code): Likewise.
	* except.c (dw2_output_call_site_table): Likewise.
	* gcc.c (do_spec_1): Likewise.
	* genopinit.c (optabs): Likewise.
	* objc/objc-act.c (synth_id_with_class_suffix, start_class,
	gen_declaration_1, handle_impent): Likewise.
	* protoize.c (default_include, in_system_include_dir, abspath):
	Likewise.
	* sched-vis.c (visualize_stall_cycles): Likewise.
	* sdbout.c (plain_type_1, sdbout_end_function,
	sdbout_end_epilogue): Likewise.
	* varasm.c (decode_reg_name): Likewise.

	* 1750a.c (mod_regno_adjust): Likewise.
	* alpha.c (alpha_write_one_linkage,
	unicosmk_output_default_externs): Likewise.
	* arm.c (arm_condition_codes): Likewise.
	* arm.h (arm_condition_codes): Likewise.
	* avr.c (output_movsisf, encode_section_info): Likewise.
	* darwin.h (GEN_BINDER_NAME_FOR_STUB, GEN_SYMBOL_NAME_FOR_SYMBOL):
	Likewise.
	* i386.c (hi_reg_name, qi_reg_name, qi_high_reg_name): Likewise.
	* i386.h (hi_reg_name, qi_reg_name, qi_high_reg_name): Likewise.
	* m88k.c (output_function_profiler): Likewise.
	* mips.c (mips_output_conditional_branch): Likewise.
	* ns32k.c (ns32k_out_reg_names): Likewise.
	* ns32k.h (ns32k_out_reg_names): Likewise.
	* pj.c (pj_output_rval): Likewise.
	* rs6000.c (GEN_LOCAL_LABEL_FOR_SYMBOL): Likewise.
	* sparc.c (sparc_flat_function_prologue,
	sparc_flat_function_epilogue): Likewise.

cp:
	* decl.c (warn_extern_redeclared_static, cp_make_fname_decl):
	Const-ification.
	* pt.c (tsubst_decl): Likewise.

f:
	* bad.c (ffebad_finish): Const-ification and/or static-ization.
	* intrin.c (ffeintrin_cmp_name_): Likewise.
	* stc.c (ffestc_R904): Likewise.

java:
	* expr.c (expand_invoke): Const-ification.
	* parse.y (patch_method_invocation): Likewise.

From-SVN: r45581

	* dbxout.c (dbxout_parms): Fix typo in comment.
	* unroll.c (loop_find_equiv_value): Ditto.
	* toplev.c (rest_of_compilation): Ditto.
	* loop.c (scan_loop): Ditto.
	(scan_loop): Ditto.
	* dwarf2out.c (struct dw_fde_struct): Ditto.

From-SVN: r45531

	* Makefile.in, alias.c, basic-block.h, bb-reorder.c, bitmap.c,
	bitmap.h, builtin-types.def, builtins.c, builtins.def,
	c-aux-info.c, c-common.c, c-common.def, c-common.h,
	c-convert.c, c-decl.c, c-dump.c, c-dump.h, c-errors.c,
	c-format.c, c-lang.c, c-lex.c, c-lex.h, c-parse.in,
	c-pragma.c, c-pragma.h, c-semantics.c, c-tree.h, c-typeck.c,
	caller-save.c, calls.c, collect2.c, collect2.h, combine.c,
	conditions.h, config.gcc, configure.frag, configure.in,
	conflict.c, convert.c, convert.h, cppspec.c, crtstuff.c,
	cse.c, cselib.c, cselib.h, dbxout.c, dbxout.h, defaults.h,
	dependence.c, df.c, df.h, diagnostic.c, diagnostic.h,
	doloop.c, dominance.c, dwarf.h, dwarf2.h, dwarf2asm.c,
	dwarf2asm.h, dwarf2out.c, dwarf2out.h, dwarfout.c,
	emit-rtl.c, errors.c, errors.h, except.c, except.h,
	exgettext, explow.c, expmed.c, expr.c, expr.h, final.c,
	fixproto, flags.h, flow.c, fold-const.c, fp-test.c,
	function.c, function.h, gbl-ctors.h, gcc.c, gcc.h, gcc.hlp,
	gccspec.c, gcov-io.h, gcse.c, genattr.c, genattrtab.c,
	gencheck.c, gencodes.c, genconfig.c, genemit.c,
	genextract.c, genflags.c, gengenrtl.c, genmultilib,
	genopinit.c, genoutput.c, genpeep.c, genrecog.c,
	gensupport.c, gensupport.h, ggc-callbacks.c, ggc-common.c,
	ggc-none.c, ggc-page.c, ggc-simple.c, ggc.h, global.c,
	graph.c, graph.h, gthr-aix.h, gthr-dce.h, gthr-posix.h,
	gthr-rtems.h, gthr-single.h, gthr-solaris.h, gthr-vxworks.h,
	gthr-win32.h, gthr.h, haifa-sched.c, halfpic.c, halfpic.h,
	hard-reg-set.h, hwint.h, ifcvt.c, input.h, insn-addr.h,
	integrate.c, integrate.h, jump.c, lcm.c, libgcc2.c,
	libgcc2.h, lists.c, local-alloc.c, loop.c, loop.h,
	machmode.def, machmode.h, main.c, mbchar.c, mbchar.h,
	mips-tdump.c, mips-tfile.c, mklibgcc.in, mkmap-flat.awk,
	mkmap-symver.awk, optabs.c, output.h, params.c, params.def,
	params.h, predict.c, predict.def, predict.h, prefix.c,
	prefix.h, print-rtl.c, print-tree.c, profile.c, protoize.c,
	read-rtl.c, real.c, real.h, recog.c, recog.h, reg-stack.c,
	regclass.c, regmove.c, regrename.c, regs.h, reload.c,
	reload.h, reload1.c, reorg.c, resource.c, resource.h, rtl.c,
	rtl.def, rtl.h, rtlanal.c, sbitmap.c, sbitmap.h,
	sched-deps.c, sched-ebb.c, sched-int.h, sched-rgn.c,
	sched-vis.c, sdbout.c, sdbout.h, sibcall.c, simplify-rtx.c,
	ssa-ccp.c, ssa-dce.c, ssa.c, ssa.h, stmt.c, stor-layout.c,
	stringpool.c, system.h, timevar.c, timevar.def, timevar.h,
	tlink.c, toplev.c, toplev.h, tree.c, tree.def, tree.h,
	tsystem.h, unroll.c, unwind-dw2-fde.c, unwind-dw2-fde.h,
	unwind-dw2.c, unwind-pe.h, unwind-sjlj.c, unwind.h,
	unwind.inc, varasm.c, varray.c, varray.h, xcoffout.c,
	xcoffout.h: replace "GNU CC" with "GCC".

From-SVN: r45105

	* dbxout.c: Fix comment formatting.
	* dependence.c: Likewise.
	* df.c: Likewise.
	* diagnostic.c: Likewise.
	* dominance.c: Likewise.
	* doprint.c: Likewise.
	* dwarf2out.c: Likewise.
	* dwarfout.c: Likewise.
	* emit-rtl.c: Likewise.
	* except.c: Likewise.
	* explow.c: Likewise.
	* expmed.c: Likewise.
	* expr.c: Likewise.
	* flow.c: Likewise.
	* fold-const.c: Likewise.
	* function.c: Likewise.

From-SVN: r44729

	* target.h (gcc_target): Add asm_out.named_section,
	section_type_flags, have_named_sections.
	* target-def.h (TARGET_ASM_NAMED_SECTION): New.
	(TARGET_HAVE_NAMED_SECTIONS): New.
	(TARGET_SECTION_TYPE_FLAGS): New.

	* Makefile.in (toplev.o): Depend on TARGET_H.
	(varasm.o, dbxout.o): Likewise.
	* c-common.c (decl_attributes): Check targetm.have_named_sections
	instead of ifdef ASM_OUTPUT_SECTION_NAME.
	* dbxout.c (dbxout_function_decl): Likewise.
	(dbxout_function_end): Likewise.
	* toplev.c (compile_file): Likewise.
	* varasm.c (exception_section): Likewise.
	* cp/decl2.c (finish_objects): Likewise.

	* defaults.h (EH_FRAME_SECTION): Remove.
	(EH_FRAME_SECTION_ASM_OP): Remove.
	(EH_FRAME_SECTION_NAME): New.
	(UNIQUE_SECTION): Don't depend on ASM_OUTPUT_SECTION_NAME.
	(UNIQUE_SECTION_P): Remove.
	* dwarf2out.c (SECTION_FORMAT): Remove.
	(ASM_OUTPUT_SECTION): Remove.
	(output_call_frame_info): Use named_section_flags.
	(output_comp_unit, dwarf2out_start_source_file): Likewise.
	(dwarf2out_end_source_file, dwarf2out_define): Likewise.
	(dwarf2out_undef, dwarf2out_init, dwarf2out_finish): Likewise.
	* varasm.c (in_eh_frame, eh_frame_section): Remove.
	(named_section_flags): New.
	(named_section): Use it and targetm.section_type_flags.
	(resolve_unique_section): New.
	(assemble_start_function): Use it.
	(asm_emit_uninitialised, assemble_variable): Likewise.
	(default_section_type_flags): New.
	(default_no_named_section, default_elf_asm_named_section): New.
	(default_coff_asm_named_section, default_pe_asm_named_section): New.
	* output.h: Update varasm.c decls.
	(SECTION_*): New flags.

	* crtstuff.c: Check EH_FRAME_SECTION_NAME not EH_FRAME_SECTION_ASM_OP.
	(__EH_FRAME_BEGIN__, __FRAME_END__): Use attribute section.

	* config/elfos.h (UNIQUE_SECTION_P): Remove.
	* config/alpha/elf.h, config/arm/linux-elf.h: Likewise.
	* config/arm/pe.h, config/arm/unknown-elf.h: Likewise.
	* config/i386/cygwin.h, config/i386/djgpp.h: Likewise.
	* config/i386/i386-interix.h, config/i386/win32.h: Likewise.
	* config/ia64/sysv4.h, config/mcore/mcore-pe.h: Likewise.
	* config/mips/elf.h, config/mips/elf64.h: Likewise.
	* config/mips/iris6gld.h, config/mips/mips.h: Likewise.
	* config/pa/pa64-hpux.h,

	* config/elfos.h (ASM_OUTPUT_SECTION_NAME): Remove.
	(TARGET_ASM_NAMED_SECTION): New.
	* config/psos.h, config/a29k/a29k.h, config/alpha/elf.h: Likewise.
	* config/alpha/vms.h, config/arm/coff.h: Likewise.
	* config/arm/conix-elf.h, config/arm/elf.h: Likewise.
	* config/arm/linux-elf.h, config/arm/pe.h: Likewise.
	* config/arm/unknown-elf.h, config/avr/avr.h: Likewise.
	* config/c4x/c4x.h, config/h8300/h8300.h: Likewise.
	* config/i386/cygwin.h, config/i386/djgpp.h: Likewise.
	* config/i386/i386-interix.h, config/i386/i386elf.h : Likewise.
	* config/i386/sco5.h, config/i386/win32.h: Likewise.
	* config/m68k/coff.h, config/mcore/mcore-pe.h: Likewise.
	* config/mcore/mcore.h, config/mips/elf.h: Likewise.
	* config/mips/elf64.h, config/mips/iris6.h: Likewise.
	* config/mips/netbsd.h, config/mips/openbsd.h: Likewise.
	* config/pa/pa64-hpux.h, config/rs6000/sysv4.h: Likewise.
	* config/rs6000/xcoff.h, config/sh/sh.h: Likewise.
	* config/sparc/sysv4.h: Likewise.

	* config/nextstep.h: Error until named sections implemented.

	* config/a29k/a29k.c (a29k_asm_named_section): New.
	* config/alpha/alpha.c (SECTION_VMS_OVERLAY): New.
	(vms_section_type_flags, vms_asm_named_section): New.
	* config/arm/arm.c (arm_elf_asm_named_section): New.
	* config/avr/avr.c (asm_output_section_name): Remove.
	* config/avr/avr-protos.h: Update.
	* config/c4x/c4x.c (c4x_asm_named_section): New.
	* config/h8300/h8300.c (h8300_asm_named_section): New.
	* config/i386/i386.c (sco_asm_named_section): New.
	* config/i386/winnt.c (SECTION_PE_SHARED): New.
	(i386_pe_section_type_flags): New.
	(i386_pe_asm_named_section): New.
	* config/i386/i386-protos.h: Update.
	* config/m68k/m68k.c (m68k_coff_asm_named_section): New.
	* config/mcore/mcore.c (mcore_asm_named_section): New.
	* config/mips/mips.c (iris6_asm_named_section): New.
	* config/mips/mips.h (ENCODE_SECTION_INFO): Use DECL_ONE_ONLY
	instead of UNIQUE_SECTION_P.
	* config/rs6000/rs6000.c (rs6000_elf_section_type_flags): New.
	(xcoff_asm_named_section): New.
	* config/sh/sh.c (sh_asm_named_section): New.
	* config/sparc/sparc.c (sparc_elf_asm_named_section): New.

	* config/i386/djgpp.h (EH_FRAME_SECTION_ASM_OP): Remove.
	* config/i386/sco5.h (EH_FRAME_SECTION_ASM_OP*): Remove.
	(EH_FRAME_SECTION_NAME): New.
	(EXCEPTION_SECTION): New.
	* config/ia64/ia64.h (EH_FRAME_SECTION_ASM_OP): Remove.
	(DEBUG_*_SECTION): Remove.
	* config/m68k/rtemself.h (EH_FRAME_SECTION_ASM_OP): Remove.
	* config/mips/iris6.h (DEBUG_*_SECTION): Remove.
	(EH_FRAME_SECTION_ASM_OP): Remove.

	* doc/tm.texi (UNIQUE_SECTION_P): Remove.
	(ASM_OUTPUT_SECTION_NAME): Remove.
	(TARGET_ASM_NAMED_SECTION): New.
	(TARGET_HAVE_NAMED_SECTIONS): New.
	(TARGET_SECTION_TYPE_FLAGS): New.
	(EH_FRAME_SECTION_ASM_OP): Remove.
	(EH_FRAME_SECTION_NAME): New.

From-SVN: r44623

        * dbxout.c (dbxout_symbol_location): Flatten subregs first;
        don't take REGNO of a non-register.

From-SVN: r44615

	* toplev.c, varasm.c, final.c: Include xcoffout.h if appropriate.
	* dbxout.c (dbxout_global_decl): Move outside #ifdef.
	* Makefile.in (varasm.o, final.o, toplev.o): Update dependencies.

From-SVN: r44382

	* dbxout.c: Consistently use putc instead of fputc.
 	(print_wide_int): New function; call instead of direct fprintf.
	(dbxout_type_index): Adjust calls of CHARS to be more accurate.
	(dbxout_type_fields, dbxout_type_method_1): Likewise.
	(dbxout_type_methods, dbxout_range_type, dbxout_type): Likewise.
	(print_int_cst_octal): Likewise.
	(print_octal): Show we wrote characters.
	(dbxout_type): Set have_used_extensions in more places.

From-SVN: r44367

	* dbxout.c (dbxout_global_decl): New.
	(xcoff_debug_hooks, dbx_debug_hooks): Use it.
	* sdbout.c (sdbout_finish): New.
	(sdbout_debug_hooks): Use it, add comments.
	(sdbout_global_decl): Defer initialised public vars to
	sdbout_finish.
	* varasm.c (assemble_variable): Don't output debug information
	for file-scope variables.

Co-Authored-By: Richard Henderson <rth@redhat.com>

From-SVN: r44243

From-SVN: r44237

	* dbxout.c (dbxout_global_decl): New.
	(xcoff_debug_hooks, dbx_debug_hooks): Use it.
	* sdbout.c (sdbout_finish): New.
	(sdbout_debug_hooks): Use it, add comments.
	(sdbout_global_decl): Defer initialised public vars to
	sdbout_finish.
	* varasm.c (assemble_variable): Don't output debug information
	for file-scope variables.

Co-Authored-By: Richard Henderson <rth@redhat.com>

From-SVN: r44232

	* Makefile.in (emit-rtl.o, c-decl.o): Depend on debug.h.
	(final.o): Don't depend on xcoffout.h, dbxout.h or sdbout.h.
	(toplev.o): Don't depend on xcoffout.h.
	* c-decl.c: Include debug.h
	(duplicate_decls): Use debug hook.
	* dbxout.c (dbxout_source_file, dbxout_args): Make static.
	(dbx_debug_hooks, xcoff_debug_hooks): Update.
	(dbxout_types): Remove.
	* dbxout.h (dbxout_source_file, dbxout_types, dbxout_args): Remove.
	* debug.c (do_nothing_debug_hooks): Update.
	(debug_true_tree, debug_nothing_rtx): New.
	* debug.h (struct rtx_def): New.
	(struct gcc_debug_hooks): New hooks ignore_block,
	outlining_inline_function and label.
	(debug_true_tree, debug_nothing_rtx, dwarf2out_frame_init,
	dwarf2out_frame_finish): New.
	* dwarf2out.c (dwarf2out_ignore_block, dwarf2out_abstract_function):
	Make static, update prototype.
	(dwarf2_debug_hooks): Update.
	* dwarf2out.h (dwarf2out_ignore_block, dwarf2out_abstract_function,
	dwarf2out_frame_init, dwarf2out_frame_finish): Remove.
	* dwarfout.c (dwarf_debug_hooks): Update.
	* emit-rtl.c: Include debug.h.
	(remove_unnecessary_notes): Use debug hook.
	* final.c: Don't include dbxout.h, xcoffout.h or sdbout.h.
	(final_scan_insn): Use debug hook.
	* integrate.c (output_inline_function): Use debug hook.
	* sdbout.c (sdbout_toplevel_data, sdbout_label): Make static.
	(sdb_debug_hooks): Update.
	* sdbout.h (sdbout_label, sdbout_toplevel_data): Remove.
	* toplev.c: Don't include xcoffout.h.
	(note_outlining_of_inline_function, debug_ignore_block): Remove.
	* toplev.h (note_outlining_of_inline_function, debug_ignore_block):
	Remove.
	* tree.h (dwarf2out_do_frame): Remove.

From-SVN: r44163

	* Makefile.in (toplev.o, dwarfout.o, final.o): Don't depend on
	dwarfout.h.
	* dbxout.c (dbxout_function): Rename dbxout_funciton_decl, move
	to conditionally compiled block.
	(dbx_debug_hooks, xcoff_debug_hooks): Update.
	* dbxout.h (dbxout_function): Remove.
	* debug.c (do_nothing_debug_hooks): Update.
	* debug.h (struct gcc_debug_hooks): New hooks function_decl,
	global_decl, deferred_inline_function.
	* dwarf2out.c (dwarf2_debug_hooks): Update.
	(dwarf2out_global_decl): New.
	* dwarfout.c: Don't include dwarfout.h.
	(dwarfout_global_decl, dwarfout_function_decl,
	dwarfout_deferred_inline_function): New.
	(dwarf_debug_hooks): Update.
	* dwarfout.h: Remove.
	* final.c: Don't include dwarfout.h.
	* sdbout.c (sdbout_global_decl): New.
	(sdbout_debug_hooks): Update.
	* toplev.c: Don't include dwarfout.h.
	(check_global_declarations, rest_of_compilation): Use new debug hooks.
	(note_deferral_of_defined_inline_function): Remove.
	* toplev.h (note_deferral_of_defined_inline_function): Remove.
	* ch/Makefile.in (lex.o): No dependence on dwarfout.h.
	* ch/lex.c: Don't include dwarfout.h.
	* cp/Make-lang.in (decl2.o): No dependence on dwarfout.h, dwarf2out.h.
	(semantics.o, optimize.o): Depend on debug.h not dwarfout.h.
	* cp/decl2.c: Don't include dwarfout.h and dwarf2out.h.
	* cp/optimize.c: Include debug.h.
	(maybe_clone_body): Use debug hook.
	* cp/semantics.c: Include debug.h.
	(expand_body): Use debug hook.
	* po/POTFILES.in: Remove dwarfout.h.

From-SVN: r44145

	* dbxout.c (dbxout_really_begin_function): Rename to
	dbxout_begin_function.
	(dbx_debug_hooks, xcoff_debug_hooks): Update.
	(dbxout_begin_function): Remove.
	(dbxout_function): Update.
	(dbxout_source_line): Update prototype.
	* dbxout.h (dbxout_begin_function): Remove.
	* debug.c (do_nothing_debug_hooks): Update.
	(debug_nothing_tree): Update.
	(debug_nothing_charstar_rtx): Remove.
	* debug.h (union tree_node): Declare.
	(struct rtx_def): Remove.
	(gcc_debug_hooks): New hooks begin_prologue, end_prologue,
	begin_function.  Change source_line prototype.
	(debug_nothing_tree): New.
	(debug_nothing_charstar_rtx): Delete.
	(dwarf2out_begin_prologue): Moved from ...
	* tree.h: ... here.
	* dwarf2out.c (dwarf2_debug_hooks): Update.
	(dwarf2out_begin_prologue): Update prototype.  If genuine dwarf2
	debug info, call dwarf2out_source_line.
	(dwarf2out_souce_line): Update prototype.
	* dwarfout.c (dwarfout_begin_function): Rename dwarfout_end_prologue.
	Change prototype, make static.
	(dwarfout_source_line): Update prototype.
	(dwarf_debug_hooks): Update.
	* dwarfout.h (dwarfout_begin_function): Remove.
	* final.c (final_start_function, final_scan_insn): Use appropriate
	debug hooks, update to use notice_source_line.
	(output_source_line): Rename notice_source_line.  Don't call the
	source_line debug hook.
	* sdbout.c (sdbout_begin_function): Rename sdbout_begin_prologue,
	make static, update prototype.
	(sdbout_mark_begin_function): Rename sdbout_begin_function, update
	prototype.
	(sdbout_end_prologue): New.
	(sdbout_source_line): Update prototype.
	(sdbout_debug_hooks): Update.
	(sdbout_symbol): Remove unused var.
	* sdbout.h (sdbout_begin_function, sdbout_mark_begin_function):
	Delete.
	* varasm.c: Include debug.h.
	(assemble_start_function): Use begin_function debug_hook.
	* xcoffout.c (xcoffout_begin_prologue): Rename xcoffout_begin_function,
	update with prototype.
	(xcoffout_source_line): Update prototype.
	* xcoffout.h (xcoffout_begin_prologue): Rename xcoffout_begin_function,
	update prototype.
	(xcoffout_source_line): Update prototype.

From-SVN: r44087

	* dbxout.c (dbxout_source_line): Make static, update prototype.
	(dbx_debug_hooks, xcoff_debug_hooks): Add new hooks.
	(dbxout_init, dbxout_finish, dbxout_source_line,
	dbxout_begin_block, dbxout_end_block): Update for new prototypes.
	* dbxout.h (dbxout_source_line): Delete.
	* debug.c (debug_nothing_file, debug_nothing_file_int,
	debug_nothing_file_charstar_rtx): New.
	(do_nothing_debug_hooks): Update.
	(debug_nothing_void, debug_nothing_charstar_rtx,
	dwarf2out_end_epilogue): New.
	(debug_nothing_file_charstar, debug_nothing_file_int_int): Rename.
	* debug.h (struct rtx_def): Declare.
	(gcc_debug_hooks): New hooks source_line, end_epilogue
	and end_function.
	(debug_nothing_void, debug_nothing_charstar_rtx,
	dwarf2out_end_epilogue): New.
	(debug_nothing_file_charstar, debug_nothing_file_int_int): Rename.
	* dwarf2out.c (dwarf2out_source_line): Make static, update prototype.
	(dwarf2_debug_hooks): Update.
	(dwarf2out_init, dwarf2out_finish, dwarf2out_source_line,
	dwarf2out_begin_block, dwarf2out_end_block): Update for new prototypes.
	* dwarf2out.h (dwarf2out_source_line): Remove.
	* dwarfout.c (dwarfout_end_epilogue, dwarfout_end_function):
	Make static, update prototype.
	(dwarfout_init, dwarfout_finish, dwarfout_source_line,
	dwarfout_begin_block, dwarfout_end_block): Update for new prototypes.
	(dwarf_debug_hooks): Update.
	* dwarfout.h (dwarfout_end_epilogue, dwarfout_source_line,
	dwarfout_end_function): Remove.
	* final.c (profile_function): Use debug hooks for ending functions
	and epilogues.
	(output_source_line, final_end_function): Update prototype,
	use debug hooks.
	(final_start_function, final_scan_insn): Update.
	* output.h (sdb_begin_function_line): Remove.
	(final_end_function): Update prototype.
	* sdbout.c (sdb_begin_function_line): Make static.
	(PUT_SDB_EPILOGUE_END): Move to sdbout_end_epilogue.
	(sdbout_source_line): New.
	(sdbout_end_epilogue, sdbout_end_function): Make static, update
	prototypes.
	(sdb_debug_hooks): Update.
	(sdbout_init, sdbout_source_line,
	sdbout_begin_block, sdbout_end_block): Update for new prototypes.
	* sdbout.h (sdbout_end_epilogue, sdbout_end_function): Remove.
	* toplev.c (compile_file, rest_of_compilation): Update.
	* tree.h (dwarf2out_end_epilogue): Move to debug.h.
	* xcoffout.c (xcoffout_source_line, xcoffout_begin_block,
	xcoffout_end_block, xcoffout_end_epilogue, xcoffout_end_function):
	Update for prototype changes.
	* xcoffout.h (xcoffout_source_line, xcoffout_begin_block,
	xcoffout_end_block, xcoffout_end_epilogue): Update prototypes.

From-SVN: r44017

	* Makefile.in (final.o): Depend on debug.h.
	* dbxout.c (dbxout_begin_block, dbxout_end_block): New.
	(dbx_debug_hooks): Add new hooks.
	(xcoff_debug_hooks): New.
	* debug.c (debug_nothing_file_int_int): New.
	(do_nothing_debug_hooks): Update.
	* debug.h (gcc_debug_hooks): New hooks begin_block and end_block.
	(debug_nothing_file_int_int): New.
	* dwarf2out.c (dwarf2out_begin_block, dwarf2out_end_block): Make
	static, update prototype.
	(dwarf2_debug_hooks): Update.
	* dwarf2out.h (dwarf2out_begin_block, dwarf2out_end_block): Remove.
	* dwarfout.c (dwarfout_begin_block, dwarfout_end_block): Make
	static, update prototype.
	(dwarf_debug_hooks): Update.
	* dwarfout.h (dwarfout_begin_block, dwarfout_end_block): Remove.
	* final.c: Include debug.h.
	(final_scan_insn): Use debug hooks when beginning and ending blocks.
	* sdbout.c (sdbout_begin_block, sdbout_end_block): Make
	static, update prototype.
	(sdb_debug_hooks): Update.
	* sdbout.h (sdbout_begin_block, sdbout_end_block): Remove.
	* toplev.c: Distinguish between xcoff and dbx.

	* f/lex.c (ffelex_file_pop_, ffelex_file_push_, ffelex_hash_):
	Call all debug hooks, not just dwarf ones.

From-SVN: r43959

	* Makefile.in (c-lex.o): Wrap long lines.  Depend on debug.h.
	* c-lex.c (cb_file_change, cb_define, cb_undef): Use debug
	hooks directly.
	* dbxout.c (dbx_debug_hooks): Add new hooks.
	(dbxout_start_new_source_file): Rename dbxout_start_source_file,
	make static.
	(dbxout_resume_previous_source_file): Rename dbxout_end_source_file,
	make static.
	* dbxout.h (dbxout_start_new_source_file,
	dbxout_resume_previous_source_file): Delete.
	* debug.c (do_nothing_debug_hooks): Add new hooks.
	(debug_nothing_init_finish): Rename debug_nothing_file_charstar.
	(debug_nothing_int_charstar, debug_nothing_int): New.
	* debug.h (gcc_debug_hooks): New hooks define, undef,
	start_source_file and end_source_file.
	(debug_nothing_init_finish): Rename debug_nothing_file_charstar.
	(debug_nothing_int_charstar, debug_nothing_int): New.
	* dwarf2out.c (dwarf2_debug_hooks): Add new hooks.
	(dwarf2out_start_source_file, dwarf2out_end_source_file,
	dwarf2out_define, dwarf2out_undef): Make static.
	* dwarf2out.h (dwarf2out_start_source_file, dwarf2out_end_source_file,
	dwarf2out_define, dwarf2out_undef): Remove.
	* dwarfout.c (dwarf_debug_hooks): Add new hooks.
	(dwarfout_start_source_file, dwarfout_end_source_file,
	dwarfout_define, dwarfout_undef): Make static.
	(dwarfout_start_source_file_check,
	dwarfout_end_source_file_check): New.
	(dwarfout_define, dwarfout_finish): Update.
	* dwarfout.h (dwarfout_start_new_source_file,
	dwarfout_resume_previous_source_file, dwarfout_define,
	dwarfout_undef): Remove.
	* sdbout.c (sdb_debug_hooks): Add new hooks.
	(sdbout_start_new_source_file): Rename sdbout_start_source_file,
	make static.
	(sdbout_resume_previous_source_file): Rename sdbout_end_source_file,
	make static, take an arg.
	* sdbout.h (sdbout_start_new_source_file,
	sdbout_resume_previous_source_file): Delete.
	* toplev.c (debug_start_source_file, debug_end_source_file,
	debug_define, debug_undef): Delete.
	* toplev.h (debug_start_source_file, debug_end_source_file,
	debug_define, debug_undef): Delete.

	* java/jcf-parse.c: Include debug.h.
	(parse_class_file): Update to use debug hooks directly.
	* java/Make-lang.in (jcf-parse.o): Depend on debug.h.

From-SVN: r43952

	* Makefile.in (toplev.o, sdbout.o, dbxout.o, dwarfout.o,
	dwarf2out.o): Depend on debug.h, wrap long lines.
	* dbxout.c: Include debug.h.
	(dbx_debug_hooks): New.
	(dbxout_init): Make static, take just 2 args.
	(dbxout_finish): Make static.
	* dbxout.h (dbxout_init, dbxout_finish): Delete.
	* debug.c: New file.
	* debug.h: New file.
	* dwarf2out.c: Include debug.h.
	(dwarf2_debug_hooks): New.
	(dwarf2out_init): Make static.
	(dwarf2out_finish): Make static, take 2 args.
	* dwarf2out.h (dwarf2out_init, dwarf2out_finish): Delete.
	* dwarfout.c: Include debug.h.
	(dwarf_debug_hooks): New.
	(dwarfout_init): Make static.
	(dwarfout_finish): Make static, take 2 args.
	* dwarfout.h (dwarfout_init, dwarfout_finish): Delete.
	* sdbout.c: Include debug.h.
	(sdb_debug_hooks): New.
	(sdbout_init): Make static, take 2 args.
	* sdbout.h (sdbout_init): Delete.
	* toplev.c: Include debug.h.
	(debug_hooks): New.
	(compile_file): Set deubg_hooks based on command line options.
	Use the hooks unconditionally rather than conditional compilation.

From-SVN: r43908

        * stmt.c (current_nesting_level): New fn.
        * tree.h: Declare it.
        * c-semantics.c (genrtl_compound_stmt): Use it.

        * dbxout.c (dbxout_symbol): Use DECL_RTL_SET_P.

From-SVN: r43037

dbxout.c (dbxout_symbol): Invert previous patch, which was outputting a tag only for variable-size records.

	* dbxout.c (dbxout_symbol): Invert previous patch, which was
	outputting a tag only for variable-size records.

From-SVN: r42588

From-SVN: r42504

        * dbxout.c (MINIMAL_DEBUG, flag_minimal_debug): Lose.
        (dbxout_type_fields): Lose minimal_debug support.
        (dbxout_type_methods, dbxout_type): Likewise.

From-SVN: r42391

From-SVN: r42283

2001-05-17  Jeffrey Oldham  <oldham@codesourcery.com>

	* dbxout.c (dbxout_symbol_location): For CONCAT, skip types not
	COMPLEX_TYPE.

From-SVN: r42231

	* dbxout.c, mips-tfile.c, config/mips/mips.c, xcoffout.c:
	Always include gstab.h, not system stab.h.  Don't provide
	default definitions of N_CATCH or N_OPT.  Always use the
	gstab.h variant of STAB_CODE_TYPE.
	* final.c: Don't include stab.h/gstab.h at all, or provide
	defaults for N_SLINE and N_SOL.

	* xcoffout.c: Can assume N_MAIN, N_DSLINE, N_BSLINE, N_BINCL,
	N_EINCL, N_EXCL, N_M2C, N_SCOPE, N_CATCH, and N_OPT are
	available.
	* sdbout.c: Always include gsyms.h instead of system syms.h.

	* configure.in: No need to check for stab.h.
	* configure, config.in: Regenerate.
	* Makefile.in (final.o): Don't depend on gstab.h.

From-SVN: r41713

	* collect2.c (main): Use concat in lieu of xmalloc/sprintf.
	(write_c_file_stat): Likewise.

	* dbxout.c (dbxout_init): Likewise.

	* profile.c (output_func_start_profiler): Likewise.

cp:
	* xref.c (GNU_xref_file): Use concat in lieu of xmalloc/sprintf.

f:
	* com.c (ffecom_subscript_check_): Use concat in lieu of
	xmalloc/sprintf.

java:
	* jvspec.c (lang_specific_driver): Fix memory allocation
	deficit, by using concat in lieu of xmalloc/sprintf.

From-SVN: r41495

dbxout.c (dbxout_init): If DBX_OUTPUT_GCC_MARKER is defined, use it instead of blindly generating a .stabs.

	* dbxout.c (dbxout_init): If DBX_OUTPUT_GCC_MARKER is defined,
	use it instead of blindly generating a .stabs.
	* xcoffout.h: Define DBX_OUTPUT_GCC_MARKER so we put the type
	in the right place.
	* xcoffout.c: Don't bother defining default for N_CATCH.
	(UNKNOWN_STAB): Use internal_error.
	(stab_to_sclass): Remove now-unnecessary aborts.
	Remove #if 0'ed case N_BROWS.  Add #ifdef N_OPT block.

From-SVN: r41404

From-SVN: r41395

	* toplev.c (output_lang_identify): Delete.
	(compile_file): Don't call ASM_IDENTIFY_GCC or ASM_IDENTIFY_LANGUAGE.
	Don't generate gcc2_compiled. label.  Don't emit a nop if profiling.
	If IDENT_ASM_OP is defined, emit an .ident "GCC (GNU) <version>"
	after calling ASM_FILE_END.

	* dbxout.c (dbxout_init): Don't call ASM_IDENTIFY_GCC_AFTER_SOURCE.
	Instead, unconditionally emit an N_OPT stab with string equal
	to STABS_GCC_MARKER, which defaults to "gcc2_compiled."

	* defaults.h: Don't provide default for ASM_IDENTIFY_LANGUAGE.

	* config/dbxelf.h, config/freebsd.h, config/nextstep.h,
	config/psos.h, config/ptx4.h, config/1750a/1750a.h,
	config/alpha/alpha.h, config/alpha/elf.h, config/arc/arc.h,
	config/arm/aof.h, config/arm/coff.h, config/arm/elf.h,
	config/arm/linux-elf.h, config/avr/avr.h, config/d30v/d30v.h,
	config/dsp16xx/dsp16xx.h, config/h8300/h8300.h,
	config/i370/i370.h, config/i386/beos-elf.h,
	config/i386/osf1elf.h, config/i386/osfrose.h,
	config/ia64/sysv4.h, config/m68k/3b1.h, config/m68k/auxgas.h,
	config/m68k/crds.h, config/m68k/hp320.h, config/m68k/m68kv4.h,
	config/m68k/mot3300.h, config/m68k/news.h, config/m68k/sgs.h,
	config/m68k/tower-as.h, config/mcore/mcore-elf.h,
	config/mips/iris6.h, config/mips/osfrose.h,
	config/mips/sni-svr4.h, config/pa/som.h, config/pdp11/pdp11.h,
	config/sparc/sp64-elf.h:
	Delete definitions of any or all of: ASM_IDENTIFY_GCC,
	ASM_IDENTIFY_GCC_AFTER_SOURCE, and ASM_IDENTIFY_LANGUAGE.

	* config/elfos.h, config/freebsd.h, config/linux.h,
	config/alpha/elf.h, config/arm/linux-elf.h, config/i386/i386elf.h,
	config/i386/ptx4-i.h, config/mips/gnu.h, config/mips/linux.h,
	config/sparc/linux.h, config/sparc/linux64.h: Delete definitions
	of ASM_FILE_START which merely emit a .version directive.  Delete
	definitions of ASM_FILE_END which merely emit an .ident directive.

	* config/avr/avr.h, config/vax/vax.h: Delete definition of
	ASM_IDENTIFY_GCC and move part of its logic into
	ASM_FILE_START.

	* config/i386/att.h, config/i386/gas.h, config/i386/linux.h,
	config/sparc/linux-aout.h: Don't emit .version directive in
	ASM_FILE_START.

	* config/i386/dgux.c, config/m88k/m88k.c, config/sh/sh.c
	(output_file_start): Correct comment.

	* config/i386/osfrose.h: Don't emit trailing .ident directive.
	* config/m68k/mot3300.h: Override STABS_GCC_MARKER to "gcc2_compiled%"
	to match gdb.
	* config/pa/lib2funcs.asm: Delete gcc_compiled. label.
	* config/rs6000/aix.h: Correct comment.

	* config/i386/i386afe.h: Delete.
	* config.gcc: Remove references to i386afe.h.

	* tm.texi: Delete documentation of ASM_IDENTIFY_GCC.  The
	other macros deleted by this patch were undocumented.

From-SVN: r41385

2001-04-03  Jakub Jelinek  <jakub@redhat.com>
	    David S. Miller  <davem@pierdol.cobaltmicro.com>
            Andrew MacLeod  <amacleod@redhat.com>

	Use byte offsets in SUBREGs instead of words.

	* alias.c (nonlocal_mentioned_p): Use subreg_regno function.
	* caller-save.c (mark_set_regs): Change callers of subreg_hard_regno
	to pass new argument.
	(add_stored_regs): Use subreg_regno_offset function.
	* calls.c (expand_call): For non-paradoxical SUBREG take endianess
	into account.
	(precompute_arguments): Use gen_lowpart_SUBREG.
	* combine.c (try_combine): Replace explicit XEXP with SUBREG_REG.
	(combine_simplify_rtx): Rework to use SUBREG_BYTE.
	(simplify_set): Rework to use SUBREG_BYTE.
	(expand_field_assignment): Use SUBREG_BYTE.
	(make_extraction): Use SUBREG_BYTE.
	(if_then_else_cond): Use SUBREG_BYTE.
	(apply_distributive_law): Use SUBREG_BYTE and fixup subreg comments.
	(gen_lowpart_for_combine): Compute full byte offset.
	* cse.c (mention_regs): Use SUBREG_BYTE.
	(remove_invalid_subreg_refs): Rework to use SUBREG_BYTE.
	(canon_hash): Use SUBREG_BYTE.
	(fold_rtx): Pass SUBREG_BYTE div UNITS_PER_WORD to operand_subword.
	(gen_lowpart_if_possible): Formatting.
	* dbxout.c (dbxout_symbol_location): Compute SUBREG hard regnos
	correctly.
	* dwarf2out.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
	(mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
	(loc_descriptor): Fixup explicit XEXP into SUBREG_REG
	* dwarfout.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
	(output_mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
	(output_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
	* emit-rtl.c (gen_rtx_SUBREG): New function, used to verify
	certain invariants about SUBREGs the compiler creates.
	(gen_lowpart_SUBREG): New function.
	(subreg_hard_regno): New function to get the final register number.
	(gen_lowpart_common): Use SUBREG_BYTE.
	(gen_imagpart): Spacing nits.
	(subreg_realpart_p): Use SUBREG_BYTE.
	(gen_highpart): Use SUBREG_BYTE.
	(subreg_lowpart_p): Always compute endian corrected goal offset,
	even at the byte level, then compare against that.
	(constant_subword): New function, pulled out all constant cases
	from operand_subword and changed second argument name to offset.
	(operand_subword): Detect non REG/SUBREG/CONCAT/MEM cases early
	and call constant_subword to do the work.  Return const0_rtx if
	looking for a word outside of OP.
	(operand_subword_force): Change second arg name to offset.
	* expmed.c (store_bit_field): Use SUBREG_BYTE.
	(store_split_bit_field): Use SUBREG_BYTE.
	(extract_bit_field): Use SUBREG_BYTE.
	(extract_split_bit_field): Use SUBREG_BYTE.
	(expand_shift): Use SUBREG_BYTE.
	* expr.c (store_expr, expand_expr): Use gen_lowpart_SUBREG.
	* final.c (alter_subreg) Use subreg_hard_regno and SUBREG_BYTE.
	* flow.c (set_noop_p): Use SUBREG_BYTE.
	(mark_set_1): Remove ALTER_HARD_SUBREG. Use subreg_regno_offset instead.
	* function.c (fixup_var_refs_1): Fixup explicit XEXP into a SUBREG_REG.
	(fixup_memory_subreg): Use SUBREG_BYTE and remove byte endian
	correction code.
	(optimize_bit_field): Use SUBREG_BYTE.
	(purge_addressof_1): Use SUBREG_BYTE.
	(purge_single_hard_subreg_set): Use subreg_regno_offset function.
	(assign_params): Mark arguments SUBREG_PROMOTED_VAR_P if they are
	actually promoted by the caller and PROMOTE_FOR_CALLS_ONLY is true.
	* gengenrtl.c (special_rtx): Add SUBREG.
	* global.c (mark_reg_store): Use SUBREG_BYTE.
	(set_preference): Rework to use subreg_regno_offset and SUBREG_BYTE.
	* ifcvt (noce_emit_move_insn): Use SUBREG_BYTE.
	* integrate.c (copy_rtx_and_substitute): Use SUBREG_BYTE and make sure
	final byte offset is congruent to subreg's mode size.
	(subst_constants): Use SUBREG_BYTE.
	(mark_stores): Use subreg_regno_offset function.
	* jump.c (rtx_renumbered_equal_p, true_regnum): Use subreg_regno_offset
	function and SUBREG_BYTE.
	* local-alloc.c (combine_regs): Use subreg_regno_offset function.
	(reg_is_born): Use subreg_hard_regno.
	* recog.c (valid_replace_rtx_1): Use SUBREG_BYTE and remove byte
	endian correction code.  Don't combine subregs unless resulting
	offset aligns with type.  Fix subreg constant extraction for DImode.
	Simplify SUBREG of VOIDmode CONST_DOUBLE.
	(general_operand): Remove dead mode_altering_drug code.
	(indirect_operand): Use SUBREG_BYTE.
	(constrain_operands): Use subreg_regno_offset function.
	* reg-stack.c (get_true_reg): Use subreg_regno_offset function.
	* regmove.c (regmove_optimize): Use SUBREG_BYTE.
	(optimize_reg_copy_3): Use gen_lowpart_SUBREG.
	* regs.h (REG_SIZE): Allow target to override.
	(REGMODE_NATURAL_SIZE): New macro which target can override.
	* reload.c (reload_inner_reg_of_subreg): subreg_regno should be used
	on the entire subreg rtx.
	(push_reload): Use SUBREG_BYTE in comments and code.
	(find_dummy_reload): Use subreg_regno_offset.  Only adjust offsets
	for hard registers inside subregs.
	(operands_match_p): Use subreg_regno_offset.
	(find_reloads): Use SUBREG_BYTE and only advance offset for subregs
	containing hard regs.
	(find_reload_toplev): Use SUBREG_BYTE.  Remove byte endian
	corrections when fixing up MEM subregs.
	(find_reloads_address_1): Use SUBREG_BYTE, subreg_regno, and
	subreg_regno_offset where appropriate.
	(find_reloads_subreg_address): Use SUBREG_BYTE.  Remove
	byte endian corrections when fixing up MEM subregs.
	(subst_reloads): When combining two subregs, make sure final
	offset is congruent to subreg's mode size.
	(find_replacement): Use SUBREG_BYTE and subreg_regno_offset.
	(refers_to_regno_for_reload_p): Use subreg_regno.
	(reg_overlap_mentioned_for_reload_p): Use subreg_regno_offset.
	* reload1.c (eliminate_regs) Use SUBREG_BYTE. Remove byte endian
	correction code for memory subreg fixups.
	(forget_old_reload_1): Use subreg_regno_offset.
	(choose_reload_regs): Use subreg_regno.
	(emit_input_reload_insns): Use SUBREG_BYTE.
	(reload_combine_note_store): Use subreg_regno_offset.
	(move2add_note_store): Use subreg_regno_offset.
	* resource.c (update_live_status, mark_referenced_resources): Use
	subreg_regno function.
	(mark_set_resources): Use subreg_regno function.
	* rtl.h (SUBREG_WORD): Rename to SUBREG_BYTE.
	(subreg_regno_offset, subreg_regno): Define prototypes.
	(subreg_hard_regno, constant_subword, gen_rtx_SUBREG): Newi functions.
	(gen_lowpart_SUBREG): Add prototype.
	* rtl.texi (subreg): Update to reflect new byte offset representation.
	Add mentioning of the effect that BYTES_BIG_ENDIAN has on subregs now.
	* rtlanal.c (refers_to_regno_p): Use subreg_regno.
	(reg_overlap_mentioned_p): Use subreg_regno.
	(replace_regs); Make sure final offset of combined subreg is
	congruent to size of subreg's mode.
	(subreg_regno_offset): New function.
	(subreg_regno): New function.
	* sched-vis.c (print_value): Change SUBREG_WORD to SUBREG_BYTE.
	* sdbout.c (sdbout_symbol): Compute offset using alter_subreg.
	* stmt.c (expand_anon_union_decl): Use gen_lowpart_SUBREG.
	* tm.texi (ALTER_HARD_SUBREG): Remove, it is now dead.
	(SUBREG_REGNO_OFFSET): Describe SUBREG_REGNO_OFFSET overrides.
	* config/a29k/a29k.c (gpc_reg_operand): Use subreg_regno.
	(a29k_get_reloaded_address): Use SUBREG_BYTE.
	(print_operand): Use SUBREG_BYTE.
	* config/alpha/alpha.c (print_operand_address): Use SUBREG_BYTE.
	* config/arm/arm.c (arm_reload_in_hi): Use SUBREG_BYTE.
	(arm_reload_out_hi): Use SUBREG_BYTE.
	* config/d30v/d30v.c (d30v_split_double): Use subreg_regno_offset
	instead of SUBREG_WORD.
	(d30v_print_operand_memory_reference): Use subreg_regno_offset.
	* config/dsp16xx/dsp16xx.md (extendqihi2, zero_extendqihi2): Fix
	SUBREG creation to use byte offset.
	* config/h8300/h8300.md (Unnamed HImode zero extraction and 16bit
	inverted load insns): Fix explicit rtl subregs to use byte
	offsets.
	* config/i370/i370.md (cmpstrsi, movstrsi, mulsi3, divsi3,
	udivsi3, umodsi3): Generate SUBREGs with byte offsets.
	* config/i860/i860.c (single_insn_src_p): Use SUBREG_BYTE.
	* config/i860/i860.md (mulsi3_big): Fixup explicit SUBREGs in rtl
	to use byte offsets.
	(unnamed fmlow.dd insn): Fixup SUBREGS to use byte offsets.
	* config/i960/i960.md (extendhisi2): Generate SUBREGs with byte
	offsets, also make sure it is congruent to SUBREG's mode size.
	(extendqisi2, extendqihi2, zero_extendhisi2, zero_extendqisi2,
	unnamed ldob insn): Generate SUBREGs with byte offset.
	(zero_extendqihi2): SUBREG's are byte offsets.
	* config/m68hc11/m68hc11.c (m68hc11_gen_lowpart): Use SUBREG_BYTE.
	(m68hc11_gen_highpart): Use SUBREG_BYTE.
	* config/m68k/m68k.md (zero_extendhisi2, zero_extendqihi2,
	zero-extendqisi2): Generate SUBREGs with byte offset.
	(umulsidi3, mulsidi3, subreghi1ashrdi_const32,
	subregsi1ashrdi_const32, subreg1lshrdi_const32): Fixup explicit
	subregs in rtl to use byte offsets.
	* config/m88k/m88k.md (extendsidi2): fixup subregs to use byte offset.
	* config/mips/mips.c (mips_move_1word): Use subreg_regno_offset.
	(mips_move_2words): Use subreg_regno_offset.
	(mips_secondary_reload_class): Use subreg_regno_offset.
	* config/mips/mips.md (DImode plus, minus, move, and logical op
	splits): Fixup explicit subregs in rtl to use byte offsets.
	* config/mn10200/mn10200.c (print_operand): Use subreg_regno function.
	* config/mn10300/mn10300.c (print_operand): Use subreg_regno function.
	* config/ns32k/ns32k.md (udivmoddisi4): Fix explicit subregs in
	rtl to use byte offsets.
	* config/pa/pa.c (emit_move_sequence): Use SUBREG_BYTE.
	* config/pa/pa.md (floatunssisf2, floatunssidf2, mulsi3): fix explicit
	subregs to use byte offsets.
	* config/pdp11/pdp11.md (zero_extendhisi2, modhi3, modhi3+1):
	Fixup explicit subregs in rtl to use byte offsets.
	* config/romp/romp.c (memory_offset_in_range_p): Use SUBREG_BYTE
	and remove byte endian correction code.
	* config/sh/sh.c (output_movedouble): Use subreg_regno.
	(gen_ashift_hi): Use SUBREG_BYTE.
	(regs_used): Use subreg_regno_offset.
	(machine_dependent_reorg): Use subreg_regno_offset.
	* config/sh/sh.h (INDEX_REGISTER_RTX_P): Use SUBREG_BYTE.
	* config/sh/sh.md (DImode and DFmode move splits): Use subreg_regno.
	(movdf_i4): Subregs are byte offsets now.
	* config/sparc/sparc.c (ultra_find_type): Use SUBREG_BYTE.
	* config/sparc/sparc.h (ALTER_HARD_SUBREG): Removed.
	(REGMODE_NATURAL_SIZE): Override.
	(REG_SIZE): For SUBREG check float mode on SUBREG_REG's mode.
	* config/sparc/sparc.md (TFmode move splits): Generate SUBREGs
	with byte offsets.
	(zero_extendhisi2, zero_extendqidi2_insn, extendhisi2,
	extendqihi2, sign_extendqihi2_insn, sign_extendqisi2_insn,
	extendqidi2): Generate SUBREGs with byte offsets, also make sure
	it is congruent to SUBREG's mode size.
	(smulsi3_highpart_v8plus): Fix explicit subregs in rtl to use byte
	offsets.
	(cmp_siqi_trunc, cmp_siqi_trunc_set, cmp_diqi_trunc,
	cmp_diqi_trunc_set, lshrdi3_v8plus+1, lshrdi3_v8plus+2,
	lshrdi3_v8plus+3, lshrdi3_v8plus+4): Use proper
	SUBREG_BYTE offset for non-paradoxical subregs in patterns.
	* config/v850/v850.c (print_operand, output_move_double): Use
	subreg_regno function.

Co-Authored-By: Andrew MacLeod <amacleod@redhat.com>
Co-Authored-By: David S. Miller <davem@pierdol.cobaltmicro.com>

From-SVN: r41058