2001-01-14  Kazu Hirata  <kazu@hxi.com>

	* config/h8300/h8300.c (get_shift_alg): Update comments.

From-SVN: r39010

	* gcc.c-torture/compile/20010114-1.c: New test.
	* gcc.c-torture/compile/20010114-1.x: Xfail.
	* gcc.c-torture/compile/20010114-2.c: New test.
	* gcc.c-torture/execute/20010114-1.c: New test.
	* gcc.dg/trunc-1.c: New test.
	* gcc.dg/uninit-B.c: New test.

From-SVN: r39009

	* ggc-page.c (alloc_annon): Call perror and correctly call exit.
	(alloc_page, ggc_alloc): Add casts to remove warnings.

From-SVN: r39008

	* combine.c (simplify_comparison): Don't change `code' when
	can't reverse comparison.

From-SVN: r39007

        * rtlanal.c (computed_jump_p_1): Rename from jmp_uses_reg_or_mem;
        update all call sites.  Return true for all non-label constants.

From-SVN: r39006

	* i386.c (ix86_expand_compare): Add bypass_test and second_test
	parameters.
	(ix86_expand_branch): Update.
	(ix86_expand_setcc): Update to handle multiple test conditions.
	(expand_int_movcc): Likewise.
	(expand_fp_movcc): Likewise.
	* i386-protos.h (ix86_expand_compare): New.
	* i386.md (andqi_?_slp, orqi_?_slp): New.
	(conditional trap expander): Update call to ix86_expand_compare.

From-SVN: r39005

        * config/vax/vax.h (RETURN_POPS_ARGS): Max at 255 arguments.
        * config/vax/vax.md (call_pop): Turn into an expander.
        (call_value_pop): Likewise.
        (call, call_value): New.

From-SVN: r39004

From-SVN: r39003

        * config/vax/vax.md: Use nonimmediate_operand instead of
        general_operand in destinations.

From-SVN: r39002

From-SVN: r39001

	* config/i386/i386.c (ix86_split_fp_branch): Remove unused
	variables.
	(ix86_fp_compare_mode): Add unused attribute.
	(ix86_expand_fp_movcc): Remove unused variable.
	(ix86_expand_builtin): Make fcode unsigned.

	* expr.c (MOVE_BY_PIECES_P): Cast MOVE_RATIO to unsigned.
	(expand_expr): Add cast to avoid signed warning.
	(store_field): Likewise.
	(store_constructor_field): Likewise.
	(store_constructor): Likewise.
	(store_expr): Likewise.
	(clear_storage): Likewise.
	(emit_group_store): Likewise.
	(emit_group_load): Likewise.

From-SVN: r39000

From-SVN: r38999

	* c-common.c: Move format checking code to ...
	* c-format.c: ... here.  New file.  Reorder some functions and
	declarations.
	(decl_handle_format_attribute, decl_handle_format_arg_attribute):
	New functions.
	* c-common.h (decl_handle_format_attribute,
	decl_handle_format_arg_attribute): Declare.
	* Makefile.in (C_AND_OBJC_OBJS): Add c-format.o.
	(c-common.o): Adjust dependencies.
	(c-format.o): New list of dependencies.

cp:
	* Make-lang.in (CXX_C_OBJS): Add c-format.o.

From-SVN: r38998

From-SVN: r38997

unroll.c (loop_iterations): If we cannot prove iteration variable is set once in each iteration, punt.

	* unroll.c (loop_iterations): If we cannot prove iteration variable
	is set once in each iteration, punt.

From-SVN: r38996

	* config/avr/avr.md ("strlenhi"): Remove clobber of input address.
	(*strlenhi): Remove clobber (which was buggy) of output address.

From-SVN: r38995

From-SVN: r38994

contrib:
	* gcc_update: Add gcc/gcc.1 to generated files.
	* texi2pod.pl: Handle @r and @gccoptlist.  Handle @gol.  Handle
	discarding to end of sentence with @xref where the sentence has an
	interior "." in markup, and handle discarding parentheses around
	such a sentence.

gcc:
	* Makefile.in (generated-manpages): Add gcc.1
	($(srcdir)/gcc.1): New target.
	(maintainer-clean): Delete $(srcdir)/gcc.1.
	* gcc.texi: Add macros @gccoptlist and @gol.
	* invoke.texi: Include option summary in manpage.  Mark up option
	summary with @gccoptlist and @gol.  Use @r in one place where
	appropriate.
	* texinfo.tex: Update to version 2000-12-11.07 from ftp.gnu.org.
	* gcc.1: Generate from invoke.texi.

gcc/cp:
	* g++.1: Change to be ".so man1/gcc.1".

From-SVN: r38993

        * ggc-page.c (USING_MALLOC_PAGE_GROUPS): New; set if not using mmap.
        (struct page_entry): Add group member.
        (struct page_group): New.
        (struct globals): Add page_groups member.
        (alloc_anon): Only define for using mmap; remove valloc call.
        (page_group_index): New.
        (set_page_group_in_use): New.
        (clear_page_group_in_use): New.
        (alloc_page): Implement USING_MALLOC_PAGE_GROUPS.
        (free_page, release_pages): Likewise.
        * configure.in (with-gc): Default to ggc-page always.

From-SVN: r38992

reload1.c (replace_pseudos_in_call_usage): Use reg_equiv_constant and reg_equiv_address, and don't try regno_reg_rtx first.

* reload1.c (replace_pseudos_in_call_usage): Use
reg_equiv_constant and reg_equiv_address, and don't try
regno_reg_rtx first.

From-SVN: r38991

        * ggc-page.c (alloc_page): Round up allocation size to one page.
        Set e->order on extra pages.

From-SVN: r38990

        * genrecog.c (nodes_identical): Expand commentary.
        (write_switch): Watch out for identical nodes.

From-SVN: r38989

        * gcc.dg/cpp/widestr1.c: Update.
        * gcc.dg/cpp/prag-imp.c: Remove.

From-SVN: r38988

        * cppfiles.c (_cpp_fake_include): New function.
        * cpphash.h (_cpp_fake_include): New.
        * cpplib.c (do_line): Call _cpp_fake_include when entering
        header files in preprocessed input.
        * cppmain.c (cb_pragma_implementation): Remove handling.
	(setup_callbacks): Don't register pragmas.

From-SVN: r38987

From-SVN: r38986

	* reload1.c: Add prototype for replace_pseudos_in_call_usage.

	* regmove.c: Add prototype for replace_in_call_usage.

From-SVN: r38985

        * cpplib.h (cpp_pool, mi_state, mi_ind, struct cpp_macro,
        struct cpp_chunk, struct htab, struct toklist,
        struct cpp_context, CPP_STACK_MAX, struct lexer_state,
        struct spec_nodes, struct cpp_reader, CPP_OPTION, CPP_BUFFER,
        CPP_BUF_LINE, CPP_BUF_COL, CPP_BUF_COLUMN, U, ustrcmp, ustrncmp,
        ustrlen, uxstrdup, ustrchr, ufputs): Move to cpphash.h
        (struct macro_args): Delete.
        * cpphash.h: See above.

From-SVN: r38984

        * cppmain.c (struct printer): Remove no_line_dirs.
        (options, cb): New.
        (main, setup_callbacks, scan_buffer, printer_init, cb_define)
        : Use options rather than CPP_OPTION.
        (setup_callbacks): Use cb rather than pfile->cb.
        (main): No need to check for a buffer.  Use cpp_errors.
        (printer_init): Don't set no_line_dirs.
        (maybe_print_line): Use options not no_line_dirs.
        (cb_file_change): Don't call print_line if -P.

From-SVN: r38983

        * c-lex.c (init_c_lex): Use cpp_get_callbacks to set
        callbacks.
        * c-parse.in (finish_parse): Use cpp_errors.
        (__yylex): Use return value of cpp_pop_buffer.
        * cp/lex.c (finish_parse): Use cpp_errors.
        * cp/spew.c (read_token): Use return value of cpp_pop_buffer.

From-SVN: r38982

From-SVN: r38981

	* c-decl.c (start_function): Don't warn if old prototype is builtin
	that's not in C's namespace.
	* libgcc2.c (_varargs): Update definition of __builtin_saveregs.
	(_bb): Add prototype for ctime.
	* config/alpha/osf.h (TRANSFER_FROM_TRAMPOLINE): Add missing protos.

From-SVN: r38980

	* i386.c (ix86_fp_comparison_arithmetics_cost,
	ix86_fp_comparison_fcomi_cost, ix86_fp_comparison_sahf_cost,
	ix86_fp_comparison_cost): New functions.
	(ix86_expand_fp_compare): Use the costs to choose best bethod; add
	two new parameters SECOND_TEST and BYPASS_TEST; allow generating
	two-branch sequences; make static.
	(ix86_use_fcomi_compare): Do decision according to the costs.
	(split_fp_branch): New.
	* i386.md (compare-and-branch patterns): Use split_fp_branch.
	* i386-protos.h (ix86_expand_fp_compare): Remove
	(ix86_split_fp_branch): Declare.

	* i386.h (PREDICATE_CODES): Update codes from fcmov_comparison_operand
	and ix86_comparison_operator.

	* i386.c (ix86_prepare_fp_compare_args): Try to rearange the comparison
	to make it cheaper.

	* i386.c (put_condition_code): Output properly the unordered/ordered
	compares in fp case.
	(ix86_expand_fp_movcc): Use ix86_expand_compare infrastructure.

	* tm.texi (REVERSE_CONDITION): Document.
	* i386.c (ix86_fp_compare_mode): Simplify; return always CCFPmode
	in -ffast-math mode.
	* i386.h (REVERSE_CONDITION, REVERSIBLE_CC_MODE): New macro.

From-SVN: r38979

From-SVN: r38978

From-SVN: r38977

* config/sh/sh.c (sh_expand_prologue): Let the second toggle_sz be
optimized away.

From-SVN: r38976

From-SVN: r38975

From-SVN: r38974

From-SVN: r38973

fix-header.c (read_scan_file): Use cpp_get_callbacks and cpp_get_options rather than dereferencing pfile and...

        * fix-header.c (read_scan_file): Use cpp_get_callbacks and
        cpp_get_options rather than dereferencing pfile and using
        CPP_OPTION.
        * scan-decls.c (scan_decls): Use return value of
        cpp_pop_buffer rather than CPP_BUFFER.

From-SVN: r38972

        * cppinit.c (cpp_handle_option): help_only is now part of the
        cpp_options structure.
        * cpplib.c (cpp_errors, cpp_get_options, cpp_get_callbacks,
        cpp_set_callbacks): New functions.
        * cpplib.h (cpp_callbacks): Break out as a named structure.
        (cpp_options): Move help_only here from cpp_reader.
        (CPP_FATAL_ERRORS): Update to use cpp_errors.
        (cpp_errors, cpp_get_options, cpp_get_callbacks,
        cpp_set_callbacks): New prototypes.
        * cppmain.c (main): Update for help_only.

From-SVN: r38971