* 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
* 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
* Makefile.in (info, maintainer-clean, install-info, uninstall):
Also build and remove and install and uninstall c-tree.info and
cppinternals.info.
($(srcdir)/gcc.info): Add dependency on contrib.texi.
($(srcdir)/cppinternals.info): New target.
* c-tree.texi: Change file name used when makeinfo used without -o
from ir.info to c-tree.info. Add info directory entry.
* cppinternals.texi: Add info directory entry.
* .cvsignore: Update.
cp:
* Make-lang.in (c++.info, c++.install-info): Build and install g++
internals info.
(c++.uninstall, c++.maintainer-clean): Remove g++ internals info.
($(srcdir)/cp/g++int.info): New target.
* gxxint.texi: Add info directory entry. Use @@ in email address.
* .cvsignore: Update.
From-SVN: r38970
* c-typeck.c (store_init_value): Don't require constant initializer
elements with -pedantic -std=c99.
(digest_init): Change error about non-constant initializer elements
into pedwarn.
(constructor_range_end): Remove.
(constructor_incremental, designator_depth,
designator_errorneous): New variables.
(struct constructor_stack): Remove range_end, add incremental.
(struct constructor_range_stack, constructor_range_stack): New.
(struct initializer_stack): Add constructor_range_stack.
(finish_init): Set it.
(start_init): Likewise. require_constant_elements for non-static
trees only if not flag_isoc99.
(really_start_incremental_init): Remove constructor_range_end, add
constructor_incremental.
(pop_init_level): Likewise.
(push_init_level): Likewise. If implicit and the subobject had some
value set already, preinitialize the level with it.
Warn about missing braces only if not pushing due to designators.
(set_designator, push_range_stack): New functions.
(set_init_label): Use them.
(set_init_index): Likewise. Remove constructor_range_end.
Error if designator index is outside of array bounds.
(add_pending_init): Compare values of purpose index trees, not the
trees themselves. Allow overwriting of already initialized element.
Issue a warning if it had side-effects.
(set_nonincremental_init, set_nonincremental_init_from_string): New
functions.
(pending_init_member): Rename to...
(find_init_member): ...this function. Call set_nonincremental_init
if necessary. Compare values of purpose index trees, not the trees
themselves. Return the actual value, not just non-zero if something
is found.
(output_init_element): Remove checks for duplicates.
If field has zero size, only check the initializer for correctness.
Call set_nonincremental_init if necessary. Push RECORD/ARRAY into AVL
if constructor_incremental is zero. Change error about initializers
not computable at load time into pedwarn.
(output_pending_init_elements): Compare bit positions, not
FIELD_DECLs to take into account zero-sized fields.
(process_init_element): Use constructor_range_stack to fill all
ranges in the designator lists from current level up.
* extend.texi: Update documentation for labeled elements.
* gcc.c-torture/execute/20000801-3.x: Remove.
* gcc.dg/c90-init-1.c: New test.
* gcc.dg/c99-init-1.c: New test.
* gcc.dg/c99-init-2.c: New test.
* gcc.dg/gnu99-init-1.c: New test.
From-SVN: r38968
* calls.c (emit_library_call_value_1): Add USEs and CLOBBERs
to function usage for arguments passed by reference. Optimize
callee-copied arguments.
* regmove.c (find_related_toplev): Find uses in function usage.
(replace_in_call_usage): New function.
(fixup_match_1): Call it.
* cse.c (cse_insn): Canonicalize registers in function usage.
* reload1.c (replace_pseudos_in_call_usage): New function.
(reload): Call it.
From-SVN: r38964
* acinclude.m4 (GLIBCPP_CHECK_CTYPE_SUPPORT): check for DJGPP <ctype.h>
(LIB_AC_PROG_CXX): replace [/\\] with [\\/] to work around older
bash bug.
* aclocal.m4: regenerated.
* configure.target: set os_include_dir to config/os/djgpp under DJGPP.
* configure: regenerated.
* config/os/djgpp, config/os/djgpp/bits: new directories.
* config/os/djgpp/bits/ctype_base.h,
config/os/djgpp/bits/ctype_inline.h,
config/os/djgpp/bits/ctype_noninline.h,
config/os/djgpp/bits/os_defines.h: new files.
From-SVN: r38958
* cpp.texi, extend.texi, gcc.texi, install.texi, invoke.texi,
tm.texi: Consistently refer to ISO C instead of ANSI C. Refer to
-std options alongside references to -ansi. Update some
documentation for C99.
* cpp.1: Regenerate.
From-SVN: r38956
2001-01-12 Phil Edwards <pme@sources.redhat.com>
* extend.texi: Move C++-extension-related node from the C section
into the C++ section.
From-SVN: r38950
* combine.c (reversed_comparison): Fix typo in last patch.
Check X for NULL.
(combine_reversed_comparison_code): Make static to follow
prototype declaration.
Co-Authored-By: Jan Hubicka <jh@suse.cz>
From-SVN: r38942
cp:
* friend.c (make_friend_class): Make sure a templated class is
actually a template.
testsuite:
* g++.old-deja/g++.pt/friend47.C: New test.
From-SVN: r38939
2001-01-11 Zack Weinberg <zack@wolery.stanford.edu>
* aclocal.m4 (AC_FUNC_MMAP_ANYWHERE): Completely rewritten.
Now defines HAVE_MMAP_DEV_ZERO and/or HAVE_MMAP_ANON depending
which you have.
(AC_FUNC_MMAP_FILE): Don't AC_REQUIRE AC_FUNC_MMAP_ANYWHERE.
* configure.in: Set GGC to ggc-page if any of mmap_dev_zero,
mmap_anon, and valloc is available.
* ggc-page.c: Restructure ifdef logic to match new autoconf
spec. Don't throw away the test page in init_ggc.
* configure, config.in: Regenerate.
From-SVN: r38934
