* cpplib.h (cpp_reader): Remove if_stack.  Change
	potential_control_macro to a cpp_hashnode *.  Add skipping flag.
	* cpphash.h (struct ihash): Change control_macro to a
	cpp_hashnode * and shorten name to cmacro.
	Add NEVER_REINCLUDE constant.

	* cppfiles.c (redundant_include_p): Drop cpp_reader argument.
	Examine the cmacro node directly, no need to call cpp_defined.
	(_cpp_execute_include, read_include_file): Set cmacro to
	NEVER_REINCLUDE, not U"".
	* cpplex.c (cpp_push_buffer): Don't set new->if_stack.
	(cpp_get_token): If pfile->skipping is true, discard text and
	keep scanning until we hit a directive; don't expand macros.

	* cpplib.c (struct if_stack): Remove if_succeeded, add
	was_skipping. Change control_macro to a cpp_hashnode * and
	shorten name to cmacro.  Remove typedef IF_STACK.
	(parse_ifdef), detect_if_not_defined): Return a cpp_hashnode *.
	(conditional_skip, skip_if_group,
	consider_directive_while_skipping): Delete.
	(push_conditional): New.
	(_cpp_handle_directive): Don't process directives other than
	conditionals if we are skipping.

	(do_ifdef, do_ifndef, do_if, do_else, do_elif, do_endif):
	Update to new scheme.
	(validate_else): Skip rest of line here, unconditionally.
	(_cpp_unwind_if_stack): The stack is per-buffer.  Force
	pfile->skipping off.

	(all): Remove `scare quotes' from error messages.

	* gcc.dg/cpp-mi.c: Add another case, cpp-mix.h, where the
	guard macro is already defined when the header is first
	included.
	* gcc.dg/cpp-mix.h: New file.
	* gcc.dg/endif-label.c: Update patterns to match compiler.

	* g++.brendan/complex1.C: Declare abort.
	* g++.law/refs4.C: Remove XFAIL.
	* g++.oliva/expr2.C: Declare abort and exit.

From-SVN: r34253

	* cp-tree.h (CLASSTYPE_ALIGN_UNIT): New macro.
	* class.c (layout_empty_base): Use CLASSTYPE_ALIGN_UNIT, not
	CLASSTYPE_ALIGN.

From-SVN: r34252

        * function.c (emit_return_into_block): New line_note arg; emit it.
        (thread_prologue_and_epilogue_insns): Attempt to locate a line note
        for the close brace to accompany HAVE_return.  Move all line notes
        following the epilogue to before the NOTE_INSN_EPILOGUE_BEG.

From-SVN: r34251

        * longlong.h [__alpha] (count_leading_zeros): New.
        (count_trailing_zeros): New.
        (COUNT_LEADING_ZEROS_0): New.

        * config/alpha/alpha.c (alpha_zero_comparison_operator): New.
        (alpha_split_conditional_move): New.
        * config/alpha/alpha-protos.h: Prototype them.
        * config/alpha/alpha.h (PREDICATE_CODES): Update.
        (CPP_CPU_DEFAULT_SPEC): Fix typo for EV67.
        * config/alpha/alpha.md: Update ffs cix commentary.
        (*ze_and_ne): New.
        (*nabssf2, *nabsdf2): New.
        (*mov[qhsd]icc_internal): Use add_operand.
        (if_then_else constant splitters): New.
        (*cmp_sadd_di, *cmp_sadd_si, *cmp_sadd_sidi): New.
        (*cmp_ssub_di, *cmp_ssub_si, *cmp_ssub_sidi): New.

From-SVN: r34250

From-SVN: r34249

        * combine.c (force_to_mode) [MINUS]: Convert subtraction from
        a constant to NEG or NOT when conditions allow.

From-SVN: r34248

combine.c (combine_simplify_rtx): Don't create an if_then_else unless both args are general_operand.

        * combine.c (combine_simplify_rtx): Don't create an if_then_else
        unless both args are general_operand.  Don't canonicalize plus
        to ior unless it helps.

From-SVN: r34247

toplev.c (rest_of_compilation): Set no_new_pseudos after flow1; instead track register_life_up_to_date.

        * toplev.c (rest_of_compilation): Set no_new_pseudos after flow1;
        instead track register_life_up_to_date.  Toggle no_new_pseudos
        around if_convert.

From-SVN: r34246

2000-05-29  Bryce McKinlay  <bryce@albatross.co.nz>

	* libjava.lang/PR242.java: New file. PR gcj/242.

From-SVN: r34245

* config/rs6000/rs6000.c (output_cbranch): Escape '%' characters
so output_operand doesn't see them.

From-SVN: r34244

	* lcm.c (make_preds_opaque): Fix comment.
	(optimize_mode_switching): Use NORMAL_MODE instead of
	MODE_USES_IN_EXIT_BLOCK.  Change leftover instance of
	FP_MODE_NONE to no_mode.  Rename MODE_AT_ENTRY to NORMAL_MODE.
	Handle insertions before an existing NOTE_INSN_BASIC_BLOCK.
	* tm.texi (OPTIMIZE_MODE_SWITCHING): Refer to NORMAL_MODE.
	(MODE_USES_IN_EXIT_BLOCK): Delete.
	(MODE_AT_ENTRY) Rename to NORMAL_MODE.
	* sh.h (MODE_USES_IN_EXIT_BLOCK): Delete.
	(MODE_AT_ENTRY): Rename to NORMAL_MODE.
	(MODE_NEEDED): Don't look for USE.
	(EPILOGUE_USES): Define.

From-SVN: r34243

From-SVN: r34242

From-SVN: r34241

2000-05-28  Gabriel Dos Reis  <gdr@codesourcery.com>

        * toplev.h (skip_leading_substring): New macro.
        * toplev.c (decode_f_option): Use skip_leading_substring instead
        of strncmp.
        (decode_W_option): Likewise.

cp/

2000-05-28  Gabriel Dos Reis  <gdr@codesourcery.com>

        * decl2.c (lang_decode_option): Use skip_leading_substring instead
        of plain strncmp.

From-SVN: r34240

From-SVN: r34239

        * regclass.c (record_operand_costs): Protect reg_changes_size
        with CLASS_CANNOT_CHANGE_SIZE.

From-SVN: r34238

From-SVN: r34237

From-SVN: r34236

* g++.old-deja/g++.law/refs4.C: Mark as XFAIL.
* g++.old-deja/g++.law/temps4.C: Likewise.

From-SVN: r34235

From-SVN: r34234

* g++.old-deja/g++.brendan/code-gen4.C: Include stdio.h and
stdlib.h.  Call abort() on failure.
* g++.old-deja/g++.law/refs4.C: Likewise.
* g++.old-deja/g++.law/temps4.C: Likewise.
* g++.old-deja/g++.brendan/complex1.C: Don't assume argc is 1.
* gcc.c-torture/execute/20000112-1.c: Include string.h.

From-SVN: r34233

* operators.def (<?): Duplicated, should have been...
(>?): this.  Fixed.

From-SVN: r34232

2000-05-28  Toon Moene  <toon@moene.indiv.nluug.nl>

	* bugs.texi: Note that debugging information for
	common block items is emitted now.
	* news.texi: Ditto.

From-SVN: r34231

        * function.c (diddle_return_value): A pcc-style struct return
        returns a pointer.

From-SVN: r34230

From-SVN: r34229

	* cppfiles.c: Read files in, using mmap if possible, then
	prescan them separately.
	(read_file, read_with_read): New functions.
	* cpplex.c: Don't define UCHAR_MAX.
	(_cpp_read_and_prescan): Rename to _cpp_prescan.  Don't read
	the file here.

	* cppinit.c (handle_option): Automatically define __cplusplus,
	__OBJC__, __ASEEMBLER__, _LANGUAGE_FORTRAN here when we see
	the respective -lang switch.

	* cpphash.h (enum node_type, struct hashnode, _cpp_lookup
	prototype): Move to...
	* cpplib.h: ... here.  Rename struct hashnode to struct
	cpp_hashnode and give it a typedef.  Rename _cpp_lookup to
	cpp_lookup.  Add 'fe_value' slot, a union tree_node *.

From-SVN: r34228

* config/rs6000/rs6000.md (movsi): Constify 'name'.

* regclass.c [CLASS_CANNOT_CHANGE_SIZE]
(class_can_change_size): New variable.
(reg_changes_size): New variable.
(init_reg_sets_1): Initialise class_can_change_size.
(record_operand_costs): Remove subreg_changes_size.
Don't pass it around.  Instead update reg_changes_size.
(regclass): Initialise and free reg_changes_size.  If a register
changes size, don't preference it to a class that contains
registers that can't change size.
(record_reg_classes): Don't look at subreg_changes_size.

From-SVN: r34227

	* conpr-1.C, conpr-2.C, conpr-3.C: Include stdlib.h.

	Relative to g++.old-deja:
	* g++.brendan/complex1.C, g++.jason/optimize2.C,
	g++.mike/p9732b.C, g++.other/addrof1.C, g++.other/dyncast5.C,
	g++.other/init5.C, g++.other/init7.C, g++.other/union2.C,
	g++.pt/vbase1.C, g++.robertl/eb14.C, g++.robertl/eh990323-1.C,
	g++.robertl/eh990323-2.C, g++.robertl/eh990323-3.C,
	g++.robertl/eh990323-4.C, g++.robertl/eh990323-5.C,
	g++.robertl/ice990323-2.C: Prototype exit and/or abort.

	* g++.brendan/nest21.C, g++.eh/rethrow3.C, g++.jason/init3.C,
	g++.law/arm15.C, g++.law/cvt2.C, g++.law/visibility17.C,
	g++.mike/eh23.C, g++.mike/eh25.C, g++.mike/eh34.C,
	g++.mike/eh48.C, g++.mike/eh55.C, g++.mike/p2736.C,
	g++.oliva/new1.C, g++.other/align.C, g++.robertl/eb39.C,
	g++.robertl/eb54.C, g++.robertl/eb63.C: Include stdlib.h
	and/or string.h.

	* g++.other/goto1.C: Update expectations for error messages.

From-SVN: r34226

        * print-rtl.c (reg_names): Remove const.
        * regclass.c (reg_names): Likewise.
        * regs.h (reg_names): Likewise.
        * hard-reg-set.h (reg_names): Likewise.

From-SVN: r34225

From-SVN: r34224

2000-05-27  Alex Samuel    <samuel@codesourcery.com>
	    Mark Mitchell  <mark@codesourcery.com>

	* cp-tree.h (ansi_opname): Make it a macro.
	(ansi_assopname): Likewise.
	(struct lang_decl_flags): Add assignment_operator_p.
	(struct lang_decl): Add operator_code.
	(DECL_VTT_PARM): Adjust.
	(DECL_OVERLOADED_OPERATOR_P): Return the operator_code for an
	overloaded operator.
	(SET_OVERLOADED_OPERATOR_CODE): New macro.
	(DECL_ASSIGNMENT_OPERATOR_P): New macro.
	(DECL_ARRAY_DELETE_OPERATOR_P): Adjust.
	(opname_tab): Remove.
	(assignop_tab): Likewise.
	(operator_name_info_t): New type.
	(operator_name_info): New variable.
	(assignment_operator_name_info): Likewise.
	(build_cp_library_fn): Remove declaration.
	(push_cp_library_fn): Likewise.
	(operator_name_string): Likewise.
	(build_decl_overload): Likewise.
	* call.c (print_z_candidates): Simplify.
	(build_object_call): Adjust usage of ansi_opname.  Use
	DECL_OVERLOADED_OPERATOR_P.
	(op_error): Adjust operator name lookup.
	(build_conditional_expr): Adjust usage of ansi_opname.
	(build_new_op): Likewise.
	(build_op_delete_call): Likewise.
	(build_over_call): Likewise.
	(joust): Use DECL_OVERLOADED_OPERATOR_P.
	* decl.c (duplicate_decls): Copy operator_code.
	(init_decl_processing): Adjust parameters to push_cp_library_fn.
	(builtin_function): Adjust parameters to build_library_fn_1.
	(build_library_fn_1): Accept an overloaded operator code.
	(build_library_fn): Pass ERROR_MARK.
	(build_cp_library_fn): Accept an overloaded operator code.
	(push_cp_library_fn): Likewise.
	(grokfndecl): Tweak.
	(grokdeclarator): Simplify code to compute names of overloaded
	operators.  Adjust use of ansi_opname.
	(ambi_op_p): Work on tree_codes, not identifiers.
	(unary_op_p): Likewise.
	(grok_op_properties): Likewise.
	(start_function): Use DECL_OVERLOADED_OPERATOR_P.
	(lang_mark_tree): Don't try to mark the operator_code.
	* decl2.c (grok_function_init): Use DECL_OVERLOADED_OPERATOR_P.
	* error.c (dump_decl): Remove special handling for operator
	names.
	(dump_function_name): Likewise.
	(dump_expr): Adjust name lookup of operators.
	(op_to_string): Simplify.
	(assop_to_string): Likewise.
	* init.c (build_new_1): Adjust use of ansi_opname.
	* lex.c (opname_tab): Remove.
	(assignop_tab): Likewise.
	(ansi_opname): Likewise.
	(ansi_assopname): Likewise.
	(operator_name_string): Likewise.
	(reinit_lang_specific): Likewise.
	(operator_name_info): New variable.
	(assignment_operator_name_info): Likewise.
	(init_operators): New function.
	(init_parse): Use it.
	(do_identifier): Adjust use of ansi_opname.
	* method.c (mangle_expression): Don't use ansi_opname for
	mangling.
	(build_decl_overload_real): Use DECL_OVERLOADED_OPERATOR_P.
	(build_decl_overload): Remove.
	(build_typename_overload): Use OPERATOR_TYPENAME_FORMAT directly.
	(do_build_assign_ref): Adjust use of ansi_opname.
	(synthesize_method): Likewise.
	(implicitly_declare_fn): Likewise.
	* operators.def: New file.
	* parse.y (operator): Adjust use of ansi_opname.
	* pt.c (tsubst_decl): Use IDENTIFIER_OPNAME_P.
	(set_mangled_name_for_template_decl): Don't play games with
	current_namespace.
	(special_function_p): Adjust use of ansi_opname.
	* typeck.c (check_return_expr): Likewise.
	* Make-lang.in (cc1plus): Depend on operators.def.
	* Makefile.in (lex.o): Likewise.
	(decl.o): Likewise.

Co-Authored-By: Mark Mitchell <mark@codesourcery.com>

From-SVN: r34223

alpha.c (alpha_does_function_need_gp): Test TARGET_PROFILING_NEEDS_GP in the if, instead of with an ifdef.

        * config/alpha/alpha.c (alpha_does_function_need_gp): Test
        TARGET_PROFILING_NEEDS_GP in the if, instead of with an ifdef.
        (alpha_expand_prologue): Emit prologue_mcount if needed.
        * config/alpha/alpha.h (TARGET_PROFILING_NEEDS_GP): Default to 0.
        * config/alpha/alpha.md (prologue_mcount): New.
        * config/alpha/linux.h (FUNCTION_PROFILER): Remove.
        (TARGET_PROFILING_NEEDS_GP): Undef before redefining.
        * config/alpha/netbsd.h: Likewise.

From-SVN: r34222

        * config/alpha/elf.h (SELECT_SECTION): Mirror Kenner's May 19
        change to config/elfos.h.

From-SVN: r34221

        * config/alpha/alpha-protos.h (alpha_arg_info_reg_val): Protect
        with RTX_CODE.
        (alpha_write_linkage): Protect with BUFSIZ.
        (alpha_need_linkage): Update prototype.
        * config/alpha/alpha.c (function_arg): Move VMS code here.
        (alpha_links_base): Remove.
        (alpha_links): New.
        (mark_alpha_links_node, mark_alpha_links): New.
        (alpha_write_one_linkage): New.
        (alpha_need_linkage): Use a splay tree.  Build the linkage symbol.
        (alpha_write_linkage): Use splay_tree_foreach.
        * config/alpha/alpha.md (call_vms): Use alpha_need_linkage
        to get the linkage symbol.
        (call_value_vms): Likewise.
        * config/alpha/elf.h (output_file_directive): Remove decl.
        (ctors_section, dtors_section): Prototype.
        (sbss_section, sdata_section): Prototype.
        * config/alpha/vms.h (FUNCTION_ARG): Remove.
        (readonly_section, link_section, literals_section): Prototype.
        (ctors_section, dtors_section): Prototype.
        (vms_valid_decl_attribute_p): Remove decl.
        (alpha_arg_type, alpha_arg_info_reg_val): Likewise.

From-SVN: r34220

        * Makefile.in (resource.o): Depend on except.h.
        * except.h (output_exception_table_data): Prototype.
        * genconfig.c (gen_peephole2): Prototype.
        * genemit.c (main): Include ggc.h.
        * genoutput.c: Revert parts of last change: include errors.h
        (main): Set progname.
        * recog.c: Include hard-reg-set.h before recog.h.
        * resource.c: Include except.h.

From-SVN: r34219

From-SVN: r34218

combine.c (subst): Honour CLASS_CANNOT_CHANGE_SIZE when substituting the REG in a (subreg:X (reg:Y...

* combine.c (subst): Honour CLASS_CANNOT_CHANGE_SIZE when
substituting the REG in a (subreg:X (reg:Y ...)).

From-SVN: r34217

	* cpplex.c (_cpp_lex_line): Merge vertical space.  Flag
	first token of a line BOL.  Update EOF code for this.
	Remove illegal directive check - it appears in the (not
	yet committed) caller.
	* cpplib.h (BOL): New flag.

From-SVN: r34216

        * cpplex.c (_cpp_init_toklist): No comment space to initialise.
	(_cpp_free_toklist): No comment space to free.
	(expand_comment_space): Remove.
        (save_comment_space): Place the comment in the current token and
        not in a separate comment space.
        (_cpp_lex_line): Save comments during plain code and #define
        directives only.
        * cpplib.h (struct _cpp_toklist): Remove comment space.

From-SVN: r34215

	* cppexp.c (parse_assertion): Supply extra argument to
	_cpp_init_toklist.
	* cpplib.c (do_assert, do_unassert): Similarly.
	* cpphash.h (_cpp_init_toklist) Update.
	(_cpp_expand_token_space): New.
	(DUMMY_TOKEN, NO_DUMMY_TOKEN): New.
	* cpplex.c (_cpp_init_toklist): New argument.
	(parse_string2): New argument multiline_ok.
	(spell_token): Take a const cpp_token *.
	(INIT_NAME): Replace with INIT_TOKEN_NAME.  Update tokens_used.
	(SPELL_ macros): Replace with enum.
	(expand_token_space): Replace with _cpp_expand_token_space.
	Take COUNT argument.
	(IS_DIRECTIVE): Update.
	(_cpp_lex_line): Update token structure before parsing number.
	Don't assume start at beginning of token list.
	(save_comment): Use INIT_TOKEN_NAME.

From-SVN: r34214