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| author | Jakub Jelinek <jakub@redhat.com> | 2010-02-19 10:53:51 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2010-02-19 10:53:51 +0100 |
| commit | 40e90eac9591b388ab335cac5f793906cc9a5b0a (patch) | |
| tree | ae0cff8e2a111a3f985e8b1442893617e40733f1 /gcc/builtins.c | |
| parent | 554cf33034e4a4ba3960a0885f45fa7a919dbd0d (diff) | |
| download | gcc-40e90eac9591b388ab335cac5f793906cc9a5b0a.zip gcc-40e90eac9591b388ab335cac5f793906cc9a5b0a.tar.gz gcc-40e90eac9591b388ab335cac5f793906cc9a5b0a.tar.bz2 | |
re PR middle-end/42233 (c++ builtin_expect code generation regression)
PR middle-end/42233
* expr.h (jumpifnot, jumpifnot_1, jumpif, jumpif_1, do_jump,
do_jump_1, do_compare_rtx_and_jump): Add PROB argument.
* dojump.c: Include output.h.
(inv): New inline function.
(jumpifnot, jumpifnot_1, jumpif, jumpif_1, do_jump_1, do_jump,
do_jump_by_parts_greater_rtx, do_jump_by_parts_greater,
do_jump_by_parts_zero_rtx, do_jump_by_parts_equality_rtx,
do_jump_by_parts_equality, do_compare_and_jump): Add PROB
argument, pass it down to other calls.
(do_compare_rtx_and_jump): Likewise. If PROB is not -1,
add REG_BR_PROB note to the conditional jump.
* cfgexpand.c (add_reg_br_prob_note): Removed.
(expand_gimple_cond): Don't call it, add the probability
as last argument to jumpif_1/jumpifnot_1.
* Makefile.in (dojump.o): Depend on output.h.
* builtins.c (expand_errno_check): Adjust do_compare_rtx_and_jump
callers.
* expmed.c (emit_store_flag_force, do_cmp_and_jump): Likewise.
* stmt.c (do_jump_if_equal): Likewise.
* cfgrtl.c (rtl_lv_add_condition_to_bb): Likewise.
* loop-unswitch.c (compare_and_jump_seq): Likewise.
* config/rs6000/rs6000.c (rs6000_aix_emit_builtin_unwind_init):
Likewise.
* optabs.c (expand_doubleword_shift, expand_abs): Likewise.
* expr.c (expand_expr_real_1): Adjust do_jump, jumpifnot and
jumpifnot_1 callers.
(expand_expr_real_2): Adjust jumpifnot_1 and do_compare_rtx_and_jump
callers.
(store_expr): Adjust jumpifnot caller.
(store_constructor): Adjust jumpif caller.
From-SVN: r156889
Diffstat (limited to 'gcc/builtins.c')
| -rw-r--r-- | gcc/builtins.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/gcc/builtins.c b/gcc/builtins.c index bfff2d5..1e089ef9 100644 --- a/gcc/builtins.c +++ b/gcc/builtins.c @@ -1881,7 +1881,9 @@ expand_errno_check (tree exp, rtx target) /* Test the result; if it is NaN, set errno=EDOM because the argument was not in the domain. */ do_compare_rtx_and_jump (target, target, EQ, 0, GET_MODE (target), - NULL_RTX, NULL_RTX, lab); + NULL_RTX, NULL_RTX, lab, + /* The jump is very likely. */ + REG_BR_PROB_BASE - (REG_BR_PROB_BASE / 2000 - 1)); #ifdef TARGET_EDOM /* If this built-in doesn't throw an exception, set errno directly. */ |