PR preprocessor/3081
	* c-lex.c (map): New.
	(cb_file_change): Update map and use it.
	(cb_def_pragma, cb_define, cb_undef): Use map and line.
	(c_lex): Update to use map.
	* cpperror.c (print_location): Move to using logical line numbers.
	* cppfiles.c (stack_include_file): Update for new _cpp_do_file_change.
	(cpp_make_system_header): Similarly.
	(_cpp_execute_include): Stop line numbering hacks.  Store the
	line we will return to.
	* cpphash.h (CPP_BUF_LINE): Remove.
	(struct cpp_buffer): Remove lineno and pseudo_newlines.
	Add map and return_to_line.
	(_cpp_do_file_change): Update.
	* cppinit.c (cpp_start_read): Update line kludge.
	* cpplex.c (handle_newline): Don't update lineno and pseudo_newlines.
	(trigraph_ok): Use logical line numbers for diagnostics.
	(skip_block_comment): Likewise.
	(skip_whitespace): Likewise.
	(skip_line_comment): Use pfile->line instead.
	(_cpp_lex_token): Update to use logical line numbering exclusively.
	Handle BOL locally.  Accept new lines in directives, but keep
	pfile->line decremented.  Diagnostics use logical lines.  Update
	directive handling.
	* cpplib.c (SEEN_EOL): New.
	(skip_rest_of_line, check_eol): Use it.
	(end_directive): Increase line number when accepting the newline
	at the end of a directive.
	(run_directive): Simplify.
	(do_line): Bad LC_LEAVEs become LC_RENAMEs.  Update.
	(_cpp_do_file_change): Update to take buffer line number as an
	argument, and store the current map in the cpp_reader.  Remove
	line number kludges.
	(_cpp_do__Pragma): Restore output position after a _Pragma.
	(cpp_push_buffer): Don't set output line or lineno.
	(_cpp_pop_buffer): Transfer more info from a faked buffer.
	Remove line kludge.  Set output_line.
	* cppmacro.c (builtin_macro): Update handling of __LINE__.
	(parse_arg): Use logical lines.
	(save_lookahead_token): Save EOFs too now.
	* cppmain.c (struct printer): Fix comments.
	(printer_init): Simplify, let caller do errors.
	(scan_translation_unit, check_multiline_token, dump_macro): Update.
	(maybe_print_line): Simplify.
	(print_line): Don't print a linemarker if -P.
	(cb_define, cb_undef, cb_def_pragma, cb_ident, cb_include): Update.
	(cb_file_change): Simplify.
	* line-map.h (LAST_SOURCE_LINE): Fix.
	(CURRENT_LINE_MAP): New.

	* gcc.dg/cpp/19951025-1.c: Revert.
	* gcc.dg/cpp/directiv.c: We no longer process directives that
	interrupt macro arguments.

From-SVN: r44650

From-SVN: r44649

From-SVN: r44648

From-SVN: r44647

From-SVN: r44646

From-SVN: r44645

From-SVN: r44644

From-SVN: r44641

	* config/sh/sh.c (sh_asm_named_section): Fix typo in align
	parameter in last change.

From-SVN: r44640

From-SVN: r44639

From-SVN: r44638

	* cpphash.h (struct cpp_reader): New member directive_line.
	* cpplib.h (struct cpp_callbacks): Update prototypes of callbacks.
	* cpplib.c (do_define, do_undef, do_ident, do_include_common,
	do_pragma): Pass line to callbacks.
	(start_directive): Record line of directive.
	* cppmain.c (cb_ident, cb_define, cb_undef, cb_def_pragma,
	cb_include): Similarly.
	* c-lex.c (cb_ident, cb_define, cb_undef, cb_def_pragma):
	Similarly.

From-SVN: r44637

	* config/d30v/d30v.h: Fix typo in start of UNIQUE_SECTION
	comment.

From-SVN: r44636

	* reload1.c (fixup_abnormal_edges): New static function.
	(reload): Use it.

	* flow.c (need_fake_edge_p): New function.
	(flow_call_edges_add): Fix handling of noreturn and sibbling calls;
	avoid call insn to be very last insn in the insn stream.

	* profile.c (branch_prob): Call flow_call_edges_add instead of
	doing that by hand; cleanup cfg to re-merge basic blocks once
	we are done.

From-SVN: r44635

	* Makefile.in (CPPLIB_H): New, so that dependencies on cpplib.h
	are also on line-map.h.
	* cppfiles.c (stack_include_file): Update.
	* cpphash.h (struct cpp_buffer): New member return_at_eof.
	(_cpp_pop_buffer): New.
	* cppinit.c (cpp_destroy, cpp_finish): Update.
	(do_includes): Mark each buffer to return at EOF.
	* cpplex.c (_cpp_lex_token): Pop buffers at EOF.  Continue or
	return as requested.
	* cpplib.c (run_directive, do_line, cpp_push_buffer): Update.
	(cpp_pop_buffer): Rename _cpp_pop_buffer.  Stop skipping.
	* cpplib.h (cpp_pop_buffer): Remove.
	(cpp_scan_buffer_nooutput): Rename cpp_scan_nooutput.
	* cppmacro.c (cpp_scan_buffer_nooutput): Similarly.  No need to pop
	buffers.
	* cppmain.c (scan_buffer): Rename scan_translation_unit.  No need
	to pop buffers.
	(do_preprocessing): Update.
	* fix-header.c (read_scan_file): Update.  No need to pop buffers.
	* c-parse.in (_yylex): Similarly.
	* scan-decls.c (scan_decls): Similarly.
	* line-map.h: Update comments.

	* cp/spew.c (read_token): No need to pop buffers.

	* objc/Make-lang.in (objc-act.o): Update dependencies.

From-SVN: r44634

	* config/m68hc11/m68hc11.md ("cmphi_1", "cmpqi_1"): Allow memory
	and soft register for operand 0.
	("cmphi_z_used", "cmpqi_z_used"): Allow memory for operand 0.

From-SVN: r44631

	* config/m68hc11/m68hc11.md ("bitcmpqi"): Allow memory and soft
	register for operand 0.
	("bitcmpqi_z_used"): Allow memory for operand 0.
	(split "bitcmpqi"): New split to handle address reg as operand 1.

From-SVN: r44629

From-SVN: r44627

	As requested by Daniel Berlin since bootstrapping on i686-linux-gnu
	fails:
	* gcse.c: Revert Daniel's last patch.

From-SVN: r44626

	* sparc-protos.h: Add prototypes for fp_zero_operand and
	reg_or_0_operand.
	* sh-protos.h: Add prototype for fpul_operand.

From-SVN: r44625

From-SVN: r44624

	* 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

From-SVN: r44622

builtins.c (fold_builtin_constant_p): Return integer_zero_node for complex expressions when cfun == 0.

	* builtins.c (fold_builtin_constant_p): Return integer_zero_node
for complex expressions when cfun == 0.
	* doc/extend.texi: Document that __builtin_constant_p can be
used in data initializers as well as functions.
	* gcc.dg/bconstp-1.c: New test.

From-SVN: r44619

* config/mn10300/mn10300.h (CONDITIONAL_REGISTER_USAGE): Declare
variable I locally, instead of expecting a declaration in the
calling context.

From-SVN: r44617

except.c (collect_one_action_chain): Add an explicit cleanup action if regions surrounding a catch were encoded...

        * except.c (collect_one_action_chain): Add an explicit cleanup
        action if regions surrounding a catch were encoded entirely
        within the call-site entry.

        * g++.dg/eh/filter1.C, g++.dg/eh/filter2.C: New tests.

From-SVN: r44616

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

From-SVN: r44615

gthr-dce.h (__GTHREAD_MUTEX_INIT_FUNCTION and __GTHREAD_MUTEX_INIT_DEFAULT): New macros for mutex initialization.

	* gthr-dce.h (__GTHREAD_MUTEX_INIT_FUNCTION and
	__GTHREAD_MUTEX_INIT_DEFAULT): New macros for mutex initialization.
	(__gthread_key_delete): Remove code for __PTHREAD_LIBRARY_VERSION_1 >= 1
	(__gthread_mutex_init_function): New function for mutex initialization.

From-SVN: r44614

2001-08-03  Daniel Berlin  <dan@cgsoftware.com>

	* Makefile.in: Revert screwed up commit.

From-SVN: r44613

	* config/m68hc11/t-m68hc11-gas (T_CPPFLAGS): Add _ctor and _dtor.
	* config/m68hc11/larith.asm (_exit): Split in several sub-sections
	merged by linker script to get a final _exit().
	(__do_global_dtors): New for destructor handling in specific exit
	section.
	(__do_global_ctors): New for constructors in specific install section.
	(__map_data_section): Map data sections before running constructors.
	* config/m68hc11/m68hc11.h (INT_ASM_OP): Define to use .word.
	(CTORS_SECTION_ASM_OP): Define to put in readonly section.
	(DTORS_SECTION_ASM_OP): Likewise.
	(CTORS_SECTION_FUNCTION): Define to force a reference to
	__do_global_ctors.
	(DTORS_SECTION_FUNCTION): Likewise for __do_global_dtors.

From-SVN: r44611

2001-08-03  Daniel Berlin  <dan@cgsoftware.com>

	* ChangeLog: Fix date on previous ChangeLog entry for GCSE.

	* Makefile.in: Add df.h to gcse.c dependencies.

From-SVN: r44610

varasm.c (output_constant_def_contents): Use for the length of a string constant either its TREE_STRING_LENGTH or its...

	* varasm.c (output_constant_def_contents): Use for the length of a
	string constant either its TREE_STRING_LENGTH or its int_size_in_bytes
	depending on which is larger.

From-SVN: r44604

2001-07-16  Daniel Berlin  <dan@cgsoftware.com>

        * gcse.c: Include df.h for use as a dataflow analyzer.
        Remove regvec.
        Declaration of reg_set_info: gone.
        New df_analyzer variable used by store motion.
        (reg_set_info): Deleted.
        (mark_mem_regs): New function, analyze regs used by a mem.
        (store_ops_ok): Use dataflow analyzer results to determine if
        necessary regs are changed in the block.
        (find_moveable_store): Remove check for symbol ref, we can handle
        much more complex expressions now.
        (compute_store_table): Remove most of the code, it's unnecessary
        now that the dataflow analyzer records the info for us.
        (store_killed_after): Add parameter to say whether to do the
        store_ops_okay test, used to speed up testing when we already know
        the answer, and just want to know if the store itself was killed.
        (build_store_vector): Largely rewritten to calculate the various
        vectors properly, and somewhat optimized.
        (store_motion): Init the df_analyzer, get REG_DEF chains.
        Also handle trapping expressions (since mems almost always trap)
        (simple_mem): Redefine what a simple mem is.

From-SVN: r44603

ifcvt.c (noce_get_alt_condition): Don't make an auxiliary set from a constant part of the condition.

* ifcvt.c (noce_get_alt_condition): Don't make an auxiliary
set from a constant part of the condition.

From-SVN: r44602

From-SVN: r44601

* mkdeps.c (deps_add_default_target): Make local variable
``start'' a const char pointer.
* dwarf2out.c (compute_section_prefix): Localize use of ``p''.

From-SVN: r44600

	* doc/install.texi (Configuration): Fix markup.
	(Specific, i?86-*-udk): Likewise.
	(Specific, alpha*-dec-osf*): Warn against --with-gnu-as,
	--with-gnu-ld.
	Document --enable-threads and --enable-libgcj status.
	(Specific, mips-sgi-irix*): Canonicalize triples.
	(Specific, mips-sgi-irix5): Warn about problems with this config.
	Mention required GNU as patch.
	Native assembler problems are fixed.
	(Specific, mips-sgi-irix6): Update O32 ABI support status.
	Document --enable-threads and --enable-libgcj status.

From-SVN: r44599

From-SVN: r44597

        * config/ia64/sysv4.h (ASM_OUTPUT_LABELREF): Don't write to
        constant data.

From-SVN: r44596

        * rtlanal.c (find_first_parameter_load): Stop if we
        reach a CODE_LABEL at BOUNDARY.

From-SVN: r44595