* defaults.h (MODE_HAS_NANS, MODE_HAS_INFINITIES): New.
(MODE_HAS_SIGNED_ZEROS, MODE_HAS_SIGN_DEPENDENT_ROUNDING): New.
* flags.h (HONOR_NANS, HONOR_INFINITIES, HONOR_SIGNED_ZEROS): New.
(HONOR_SIGN_DEPENDENT_ROUNDING): New.
* builtins.c (expand_builtin_mathfn): Use HONOR_NANS.
* c-common.c (truthvalue_conversion): Reduce x - y != 0 to x != y
unless x and y could be infinite.
(expand_unordered_cmp): New, mostly split from expand_tree_builtin.
Check that the common type of both arguments is a real, even for
targets without unordered comparisons. Allow an integer argument
to be compared against a real.
(expand_tree_builtin): Use expand_unordered_cmp.
* combine.c (combine_simplify_rtx): Use the new HONOR_... macros.
* cse.c (fold_rtx): Likewise. Fix indentation.
* fold-const.c (fold_real_zero_addition_p): New.
(fold): Use it, and the new HONOR_... macros.
* ifcvt.c (noce_try_minmax): Use the new HONOR_... macros.
* jump.c (reversed_comparison_code_parts): After searching for
the true comparison mode, use HONOR_NANS to decide whether it
can be safely reversed.
(reverse_condition_maybe_unordered): Remove IEEE check.
* simplify-rtx.c (simplify_binary_operation): Use the new macros
to decide which simplifications are valid. Allow the following
simplifications for IEEE: (-a + b) to (b - a), (a + -b) to (a - b),
and (a - -b) to (a + b).
(simplify_relational_operation): Use HONOR_NANS.
* doc/tm.texi: Document the MODE_HAS_... macros.
From-SVN: r50401
* genemit.c (gen_exp): New argument used. Invoke copy_rtx
if used indicates we've already emitted one copy of an operand.
(gen_insn, gen_expand, output_add_clobbers): Supply a null used.
(gen_split): Supply a non-null used.
From-SVN: r50386
* splay-tree.c (splay_tree_xmalloc_allocate,
splay_tree_xmalloc_deallocate): Use K&R-style definitions, not
prototyped definitions. Mark `data' arguments as unused.
From-SVN: r50384
* java/io/natFileDescriptorEcos.cc (init): Don't use
GetStdHandle.
* java/io/natFileDescriptorPosix.cc (valid): Don't call stat if FD
is negative.
(init): Don't use GetStdHandle.
From-SVN: r50383
* reload1.c (reload): Unshare all rtl after reload is done.
* simplify-rtx.c (simplify_plus_minus): Do not abort,
but simply fail if the expression is too complex to simplify.
(simplify_gen_binary): Handle simplify_plus_minus failures.
From-SVN: r50380
2002-03-06 Phil Edwards <pme@gcc.gnu.org>
* docs/doxygen/user.cfg.in: Also document deprecated entries.
* docs/html/Makefile: Example rule to rebuild porting-howto.html.
* docs/html/17_intro/howto.html: "gcc"->"GCC" changes, when
referring to the collection as a whole. New section on which macros
can be redefined by the user.
* docs/html/19_diagnostics/howto.html: Update note for concepts.
* docs/html/20_util/howto.html: Update link to SGI.
* docs/html/faq/index.html: Update snapshot versions. New entry
on why g++ (but not gcc) must currently predefine certain macros.
* docs/html/faq/index.txt: Regenerated.
* include/bits/basic_string.h (basic_string::_S_construct): Fix
names in declaration.
(basic_string::compare): These are no longer optional.
* include/bits/ostream.tcc: Tweak closing brace placement.
* include/bits/stl_algo.h: Lots of initial doxygen comment hooks.
* include/std/std_sstream.h: Fix typo in comment.
* include/bits/locale_facets.tcc: Remove unneeded header inclusion.
* src/locale.cc: Likewise.
From-SVN: r50376
* toplev.c (rest_of_compilation): Do jump threading before SSA path;
consistently call delete_trivially_dead_insns after CSE and GCSE;
fix DFI_life dumping; do jump threading after liveness; do crossjumping
after liveness2; update comment in last crossjumping.
* cfgcleanup.c (try_crossjump_to_edge): Dirtify block.
From-SVN: r50373
2002-03-04 Eric Blake <ebb9@email.byu.edu>
* scripts/unicode-decomp.pl: Move from chartables.pl, and remove
the code for generating include/java-chartables.h.
* scripts/unicode-blocks.pl: Move from scripts/blocks.pl, and
merge with Classpath.
* scripts/unicode-muncher.pl: Copy from Classpath.
* scritps/MakeCharTables.java: New file.
* gnu/gcj/convert/Blocks-3.txt: New file.
* gnu/gcj/convert/UnicodeData-3.0.0.txt: New file.
* gnu/gcj/convert/UnicodeCharacterDatabase-3.0.0.html: New file.
* gnu/java/lang/CharData.java: Copy from Classpath.
* Makefile.am (ordinary_java_source_files): Add
gnu/java/lang/CharData.java.
* configure.in: Remove --enable-fast-character option.
* java/lang/Character.java: Merge algorithms and Javadoc with
Classpath.
* java/lang/natCharacter.cc: Implement Unicode lookup table more
efficiently.
* include/java-chardecomp.h: Regenerate.
* include/java-chartables.h: Regenerate.
From-SVN: r50368
* cfgcleanup.c (mentions_nonequal_regs): New function.
(thread_jump): Use it.
* toplev.c (rest_of_compilation): Run jump threading after
liveness.
From-SVN: r50361
libstdc++/5816
* include/bits/locale_facets.tcc
(num_get::_M_extract_float): Fix the parsing of __dec, since
the standard prescribes that if no grouping characters are
seen, no grouping check is applied.
* testsuite/22_locale/num_get_members_char.cc: Add test05
distilled from the PR.
* testsuite/22_locale/num_get_members_wchar_t.cc: Ditto.
From-SVN: r50317
