* alias.c (true_dependence): Allow non-unchanging read to conflict
	with unchanging write.

From-SVN: r36476

	* expr.c (store_constructor_field): Accept ALIAS_SET arg.
	(store_constructor): Pass alias_set to it.

From-SVN: r36475

	* config/avr/avr.md ("mcu_enhanced"): New attribute.
	("mcu_mega"): Likewise.
	("extendhisi2"): Use "mcu_enhanced".
	("zero_extendhisi2"): Likewise.
	("call_insn"): Use "mcu_enhanced" and "mcu_mega".
	("call_value_insn"): Likewise.
	("*sbrx_branch"): Use "mcu_mega".
	("*sbrx_and_branchsi"): Likewise.
	("*sbrx_and_branchhi"): Likewise.
	("*tablejump_lib"): Likewise.

From-SVN: r36474

From-SVN: r36473

	* c-decl.c (grokdeclarator): Reorder tests to avoid looking at
	TYPE_MAIN_VARIANT of ERROR_MARK.
	* c-lex.c (readescape): Avoid using printf syntax we don't recognize.

From-SVN: r36472

simplify-rtx.c (simplify_unary_operation): Add cases FLOAT_EXTEND and FLOAT_TRUNCATE to ones that return 0.

	* simplify-rtx.c (simplify_unary_operation): Add cases
	FLOAT_EXTEND and FLOAT_TRUNCATE to ones that return 0.

From-SVN: r36471

	* function.h (no_debugging_symbols): New field.
	* integrate.c (save_for_inline): Renamed from save_for_inline_nocopy.
	Initialize no_debugging_symbols.
	(output_inline_function): Save and restore write_symbols and set from
	no_debugging_symbols.
	* toplev.c (rest_of_compilation): Call save_for_inline.
	* tree.h: Update comment.

From-SVN: r36470

From-SVN: r36469

From-SVN: r36468

	* decl2.c (handle_class_head): Always push some scope even
	in the error case.

From-SVN: r36467

	* gcc.c-torture/execute/20000917-1.c: New test.
	* gcc.c-torture/execute/20000917-1.x: XFAIL.

From-SVN: r36466

From-SVN: r36465

	* splay-tree.c (splay_tree_predecessor): Fix typo in comment.

	Convert the C front-end to use function-at-a-time mode.
	* c-common.h: Include splay-tree.h.
	(C_DECLARED_LABEL_FLAG): New macro.
	(struct language_function): Add x_scope_stmt_stack and
	x_function_name_declared_p.
	(RECHAIN_STMTS): Move definition.
	(lang_statment_code_p): Likewise.
	(lang_expand_stmt): Likewise.
	(lang_expand_decl_stmt): New variable.
	(lang_expand_function_end): Likewise.
	(current_scope_stmt_stack): New function.
	(add_decl_stmt): Likewise.
	(add_scope_stmt): Likewise.
	(mark_stmt_tree): Likewise.
	(struct c_lang_decl): New structure.
	(DECL_SAVED_TREE): Define.
	(c_mark_lang_decl): New function.
	(c_expand_start_cond): Change prototype.
	(c_finish_then): New function.
	(c_finish_else): Likewise.
	(current_function_name_declared): Remove.
	(set_current_function_name_declared): Likewise.
	(mark_c_language_function): Declare.
	(case_compare): Likewise.
	(c_add_case_label): Likewise.
	(c_expand_expr): Likewise.
	(c_safe_from_p): Likewise.
	* c-common.c (lang_expand_function_end): New variable.
	(struct if_elt): Add if_stmt.
	(c_expand_start_cond): Add the if-statement to the statement-tree,
	rather than generating RTL.
	(c_finish_then): New function.
	(c_expand_start_else): Don't generate RTL.
	(c_finish_else): New function.
	(c_expand_expr_stmt): Don't generate RTL.
	(statement_code_p): Add SCOPE_STMT.
	(case_compare): New function.
	(c_add_case_label): Likewise.
	(mark_stmt_tree): Likewise.
	(c_mark_lang_decl): Likewise.
	(mark_c_language_function): Likewise.
	(c_expand_expr): Likewise.
	(c_safe_from_p): Likewise.
	* c-decl.c (c_stmt_tree): New variable
	(c_scope_stmt_stack): Likewise.
	(c_function_name_declared_p): Likewise.
	(lang_expand_expr_stmt): Remove.
	(poplevel): Don't call output_inline_function for nested
	functions.
	(pushdecl): Don't set DECL_CONTEXT for a local declaration of an
	`extern' function.
	(redeclaration_error_message): Change means of computing whether
	or not a function is nested.
	(lookup_label): Don't call label_rtx.
	(init_decl_processing): Add more GC roots.
	(start_decl): Add DECL_STMTs to the statement-tree, rather than
	calling rest_of_decl_compilation.
	(finish_decl): Don't call expand_decl.
	(store_parm_decls): Begin the statement-tree, but don't generate
	RTL.
	(finish_function): Tie off the statement-tree.  Call c_expand_body
	if appropriate.
	(c_expand_body): New function.
	(push_c_function_context): Save more information.
	(pop_c_function_contxt): Likewise.
	(copy_lang_decl): Now that we use DECL_LANG_SPECIFIC, copy it.
	(lang_mark_tree): Mark it.
	(current_stmt_tree): Adjust.
	(current_scope_stmt_stack): New function.
	(do_case): Remove.
	(set_current_name_declared): Likewise.
	(c_begin_compound_stmt): Define.
	(c_expand_decl_stmt): Likewise.
	* c-lang.c: Include rtl.h and expr.h.
	(lang_init): Set more language-specific hooks.
	* c-lex.c: Include expr.h.
	* c-parse.in: Changes throughout to add statements to the
	statement-tree, rather than generating RTL after every statement.
	* c-semantics.c (lang_expand_decl_stmt): Define.
	(add_decl_stmt): New function.
	(add_scope_stmt): Likewise.
	(finish_stmt_tree): Tweak.
	(genrtl_expr_stmt): Likewise.
	(genrtl_decl_stmt): Handle local labels, and call
	lang_expand_decl_stmt if required.
	(genrtl_for_stmt): Fix line-number handling.
	(genrtl_case_label): Handle cleanups.
	(genrtl_asm_stmt): Don't call combine_strings.
	(genrtl_compound_stmt): Simplify.
	(expand_stmt): Handle SCOPE_STMTs.
	* c-tree.h (struct lang_decl): New structure.
	(C_DECLARED_LABEL_FLAG): Remove.
	(c_begin_compound_stmt): Declare.
	(c_expand_decl_stmt): Likewise.
	(c_expand_start_case): Rename to c_start_case.
	(c_finish_case): New function.
	* c-typeck.c (start_init): Tweak setting of
	constructor_incremental.
	(c_expand_asm_operands): Tweak error-handling.  Add to the
	statement-tree.
	(c_expand_return): Add to the statement-tree.
	(c_expand_start_case): Rename to ...
	(c_start_case): ... this.
	(struct c_switch): New type.
	(switch_stack): New variable.
	(do_case): Simplify.
	(c_finish_case): New function.
	* dependence.c: Include expr.h.
	(enum dependence_type): Change spelling of enumerals.
	(check_node_dependence): Adjust.
	* expr.h (lang_safe_from_p): Declare.
	(safe_from_p): Likewise.
	* expr.c (lang_safe_from_p): New variable.
	(safe_from_p): Give it external linkage.  Use lang_safe_from_p.
	* stmt.c (expand_expr_stmt): Avoid clobberring of last_expr_type.
	* toplev.c (rest_of_decl_compilation): Robustify.
	* tree.c (contains_placeholder_p): Likewise.
	* Makefile.in: Update dependencies.
	* objc/objc-act.h: Adjust calculation of value for dummy_tree_code.
	* objc/objc-act.c: Include rtl.h, expr.h, and c-common.h.
	(objc_expand_function_end): New function.
	(finish_method_def): Use it.
	(init_objc): Initialize more language-specific hooks.
	* objc/Make-lang.in: Update dependencies.

	* cp-tree.h (struct cp_language_function): Remove
	x_scope_stmt_stack and name_declared.
	(current_scope_stmt_stack): Remove.
	(function_name_declared_p): New macro.
	(struct lang_decl_flags): Use c_lang_decl as a base class.
	(context): Remove.
	(struct lang_decl): Replace saved_tree with context.
	(DECL_FRIEND_CONTEXT): Adjust accordingly.
	(SET_DECL_FRIEND_CONTEXT): Likewise.
	(DECL_VIRTUAL_CONTEXT): Likewise.
	(DECL_SAVED_TREE): Remove.
	(C_DECLARED_LABEL_FLAG): Likewise.
	(cplus_expand_expr_stmt): Don't declare.
	(add_decl_stmt): Likewise.
	(add_scope_stmt): Likewise.
	* decl.c (mark_stmt_tree): Remove.
	(case_compare): Likewise.
	(finish_case_label): Use c_add_case_label.
	(init_decl_processing): Set more language-specific hooks.
	(build_enumerator): Fix typo in comment.
	(cplus_expand_expr_stmt): Remove.
	(mark_lang_function): Use mark_c_language_function.
	(lang_mark_tree): Use c_mark_lang_decl.
	* decl2.c: Change order of inclusion.
	* except.c: Likewise.
	* expr.c (cplus_expand_expr): Remove handling of STMT_EXPR.  Fall
	back on c_expand_expr.
	* friend.c: Include expr.h.
	* init.c: Change order of inclusion.
	* Makefile.in: Update dependencies.
	* lex.h (free_lang_decl_chain): Remove.
	* optimize.c (maybe_clone_body): Use function_name_declared_p.
	* pt.c (build_template_decl): Don't copy DECL_VIRTUAL_CONTEXT if
	it doesn't exist.
	(instantiate_decl): Use function_name_declared_p.
	* semantics.c (lang_expand_expr_stmt): Remove.
	(set_current_function_name_declared): Likewise.
	(current_function_name_declared): Likewise.
	(begin_compound_stmt): Use function_name_declared_p.
	(add_decl_stmt): Remove.
	(setup_vtbl_ptr): Use function_name_declared_p.
	(add_scope_stmt): Remove.
	(current_scope_stmt_stack): New function.
	(cp_expand_stmt): Don't handle SCOPE_STMTs.
	(expand_body): Use function_name_declared_p.
	* tree.c (cp_statement_code_p): Don't include SCOPE_STMT.
	* typeck.c: Change order of includes.
	(convert_sequence): Remove.

From-SVN: r36464

	* configure.in: Define macros that affect features before
	testing for features.  Don't define _XOPEN_SOURCE.
	* configure: Regenerated.
	* config.in: Regenerated.

From-SVN: r36463

	* rtlanal.c (rtx_varies_p): Volatile asms vary.
	(rtx_unstable_p): Restructure code.  Volatile asms
	are unstable.

From-SVN: r36462

	* function.h (no_debugging_symbols): New field.
	* integrate.c (save_for_inline): Renamed from save_for_inline_nocopy.
	Initialize no_debugging_symbols.
	(output_inline_function): Save and restore write_symbols and set from
	no_debugging_symbols.
	* toplev.c (rest_of_compilation): Call save_for_inline.
	* tree.h: Update comment.

From-SVN: r36461

	* stor-layout.c (place_field): Don't do anything if field or
	its type are ERROR_MARK.

From-SVN: r36460

	* cppfiles.c (purge_cache): use munmap() only if MMAP_THRESHOLD
	 defined.
	(read_include_file): Ensure inc->mmaped is initialized.

From-SVN: r36459

From-SVN: r36458

From-SVN: r36457

	* gcc.c: In description for %{<S}, say the option removed is -S.
	* invoke.texi (Spec Files): Ditto.

From-SVN: r36456

2000-09-16  Andreas Jaeger  <aj@suse.de>

	* configure.in: Always define _GNU_SOURCE to make interfaces
	visible that were hidden by only defining _GNU_SOURCE.
	* configure: Regenerated.

From-SVN: r36455

2000-09-16  Andreas Jaeger  <aj@suse.de>

	* gcc_update: Remove gcc/c-parse.gperf.

From-SVN: r36454

From-SVN: r36453

	* cpplex.c (push_macro_context): Set an argument's level after
	calling parse_args.  We could loop infinitely otherwise.
	* gcc.dg/cpp/macro2.c: New testcase.

From-SVN: r36452

2000-09-15  Benjamin Kosnik  <bkoz@purist.soma.redhat.com>

        * src/locale.cc (locale::locale(const char* __name)): Consolidate
        name setting. Add checks for NULL __name pointers. Remove calls to
        _S_initialize() as initial locale initialization can either be
        assumed, or needs to be made consistent throughout locale
        constructors.
        (locale::locale(const locale& __other, const char* __name,
        category __cat): Add checks for NULL name. Add checks for
        assignment to self.
        * src/localename.cc (locale::_Impl:: _Impl(const _Impl& __other,
        const string& __name, category __cat, size_t __refs)): Set correct
        name, has_name values.
        * testsuite/22_locale/ctor_copy_dtor.cc (test01): More tests.
        * docs/22_locale/locale.html: New file, more unfinished docs...

From-SVN: r36451

2000-09-15  Benjamin Kosnik  <bkoz@purist.soma.redhat.com>

	* src/locale.cc (locale::locale(const char* __name)): Consolidate
	name setting. Add checks for NULL __name pointers. Remove calls to
	_S_initialize() as initial locale initialization can either be
	assumed, or needs to be made consistent throughout locale
	construtors.
	(locale::locale(const locale& __other, const char* __name,
	category __cat): Add checks for NULL name. Add checks for
	assignment to self.
	* src/localename.cc (locale::_Impl:: _Impl(const _Impl& __other,
	const string& __name, category __cat, size_t __refs)): Set correct
	name, has_name values.
	* testsuite/22_locale/ctor_copy_dtor.cc (test01): More tests.
	* docs/22_locale/locale.html: New file, more unfinished docs...

From-SVN: r36450

From-SVN: r36449

	* configure, config.in: Rebuilt.
	* configure.in: Check for iconv.h.  Define _XOPEN_SOURCE.

From-SVN: r36448

cppmacro.c (check_trad_stringification): Check token text pointers against limit before dereferencing.

	* cppmacro.c (check_trad_stringification): Check token
	text pointers against limit before dereferencing.

From-SVN: r36447

	* c-common.c (format_wanted_type): New structure.
	(check_format_types): New function.
	(check_format_info): Pass all checking of types of format
	arguments, including width and precision arguments, to this new
	function.

From-SVN: r36446

From-SVN: r36445

	* config/alpha/alpha.c (override_options): ev6 cache latencies
	from Richard Henderson.  Don't allow -mmemory-latency=L0.

From-SVN: r36444

	* config/alpha/alpha.h (TARGET_CPU_EV5, TARGET_CPU_EV6): Define.
	(TARGET_OPTIONS): Add tune=.
	(alpha_tune_string): Declare.
	* config/alpha/alpha.c (override_options): Add cpu_table.
	Use alpha_cpu_string first to set both alpha_cpu and target_flags
	and then alpha_tune_string to set alpha_cpu only.
	Replace tests for PROCESSOR_EV* with TARGET_CPU_EV* tests.
	* config/alpha/elf.h (ASM_FILE_START): Likewise.
	* config/alpha/osf.h (ASM_FILE_START): Likewise.
	* config/alpha/openbsd.h (ASM_FILE_START): Likewise.

From-SVN: r36443

	* i386-protos.h (no_comparison_operator, uno_comparison_operator):
	Remove.
	(ix86_comparison_operator, ix86_cc_mode): Declare
	* i386.h (CCGC, CCGCO): New modes.
	(SELECT_CC_MODE): Move offline to ....
	* i386.c (ix86_cc_mode): .... here; use new modes.
	(ix86_comparison_operator): New.
	(fcmov_comparison_operator): Ensure proper mode.
	(put_condition_mode): More sanity checking.
	(ix86_match_ccmode): Handle new modes.
	(ix86_expand_fp_compare): GEU requires CCmode.
	(ix86_expand_strlensi_unroll_1): Use emit_cmp_and_jump_insn instead of
	doing it by hand.
	* i386.md (cmp?i_ccz_1): Remove
	(cmp?i_ccno_1): Use ix86_match_ccmode.
	(cmp?i_minus_1): New.
	(cmpsi_1): New expander.
	(cmpqi_ext_1): Use match_ccmode
	(cmpqi_ext_3): New expander.
	(cmpqi_ext_3_insn): Rename from cmpqi_ext_3.
	(cmpqi_ext_4): Use match_ccmode.
	(add?i_?): Use match_ccmode.
	(add?i_6): New.
	(test?i_ccz_1): Remove
	(test?i_1): New.
	(testsi_ccno_1, testqi_ccz_1, testqi_ext_ccno_0): New expander.
	(testqi_ext_0): Use ix86_match_ccmode.
	(*xorqi_cc_ext_1): Use ix86_match_ccmode.
	(xorqi_cc_ext_1): New expander.
	(shift patterns): Use CCGOCmode for all shifts except for sar.
	(setcc_?, jcc_?, miv?icc_nic): Use ix86_comparison_operator.
	(setcc_3, jcc_3, miv?icc_c): Remove.

From-SVN: r36442

From-SVN: r36441

for constant parameters to inlined functions.

From-SVN: r36440

2000-09-15  Kazu Hirata  <kazu@hxi.com>

	* gcc.c: Fix formatting.

From-SVN: r36439

From-SVN: r36438

2000-09-15  Kazu Hirata  <kazu@hxi.com>

	* config/i386/i386.md: Fix a comment typo.

From-SVN: r36437