diff options
| author | Richard Biener <rguenther@suse.de> | 2014-04-02 08:26:57 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2014-04-02 08:26:57 +0000 |
| commit | dad16761d163a5854d55f27f2e5212d1ade8b799 (patch) | |
| tree | 5acdcf8242a39258c75e71d48d441096c4ada2fe /gcc/optabs.c | |
| parent | 21b624f069b9e5b9c088f709cbc11704377e7a59 (diff) | |
| download | gcc-dad16761d163a5854d55f27f2e5212d1ade8b799.zip gcc-dad16761d163a5854d55f27f2e5212d1ade8b799.tar.gz gcc-dad16761d163a5854d55f27f2e5212d1ade8b799.tar.bz2 | |
re PR middle-end/60729 (Compiler failure for combination of -ftrapv and -O3: compiler error: in prepare_cmp_insn)
2014-04-02 Richard Biener <rguenther@suse.de>
PR middle-end/60729
* optabs.c (expand_abs_nojump): Honor flag_trapv only for
MODE_INTs. Properly use negv_optab.
(expand_abs): Likewise.
* g++.dg/vect/pr60729.cc: New testcase.
From-SVN: r209012
Diffstat (limited to 'gcc/optabs.c')
| -rw-r--r-- | gcc/optabs.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/gcc/optabs.c b/gcc/optabs.c index c4540f8..54f07ab 100644 --- a/gcc/optabs.c +++ b/gcc/optabs.c @@ -3384,7 +3384,8 @@ expand_abs_nojump (enum machine_mode mode, rtx op0, rtx target, { rtx temp; - if (! flag_trapv) + if (GET_MODE_CLASS (mode) != MODE_INT + || ! flag_trapv) result_unsignedp = 1; /* First try to do it with a special abs instruction. */ @@ -3407,7 +3408,8 @@ expand_abs_nojump (enum machine_mode mode, rtx op0, rtx target, { rtx last = get_last_insn (); - temp = expand_unop (mode, neg_optab, op0, NULL_RTX, 0); + temp = expand_unop (mode, result_unsignedp ? neg_optab : negv_optab, + op0, NULL_RTX, 0); if (temp != 0) temp = expand_binop (mode, smax_optab, op0, temp, target, 0, OPTAB_WIDEN); @@ -3449,7 +3451,8 @@ expand_abs (enum machine_mode mode, rtx op0, rtx target, { rtx temp, op1; - if (! flag_trapv) + if (GET_MODE_CLASS (mode) != MODE_INT + || ! flag_trapv) result_unsignedp = 1; temp = expand_abs_nojump (mode, op0, target, result_unsignedp); |