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| author | bernds <bernds@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-08-25 14:08:23 +0000 |
|---|---|---|
| committer | bernds <bernds@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-08-25 14:08:23 +0000 |
| commit | 24621f7a9d1f9fce6e3d7bb72c273adb02f392d0 (patch) | |
| tree | fe6e7f63b8499ab943985671c66c74d84fb7f753 /gcc/combine.c | |
| parent | ea74f76f37533dce30120bd711f7ae38036f3a49 (diff) | |
| download | gcc-24621f7a9d1f9fce6e3d7bb72c273adb02f392d0.tar.gz | |
PR middle-end/45355
* combine.c (try_combine): Use reg_overlap_mentioned_p rather than
dead_or_set_p when computing i0_feeds_i2_n.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@163546 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/combine.c')
| -rw-r--r-- | gcc/combine.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/combine.c b/gcc/combine.c index 1f8e97007ee..f144d1e8f28 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -2862,7 +2862,7 @@ try_combine (rtx i3, rtx i2, rtx i1, rtx i0, int *new_direct_jump_p) i1_feeds_i2_n = i1 && insn_a_feeds_b (i1, i2); i0_feeds_i1_n = i0 && insn_a_feeds_b (i0, i1); i0_feeds_i2_n = (i0 && (!i0_feeds_i1_n ? insn_a_feeds_b (i0, i2) - : (!dead_or_set_p (i1, i0dest) + : (!reg_overlap_mentioned_p (i1dest, i0dest) && reg_overlap_mentioned_p (i0dest, i2src)))); /* Ensure that I3's pattern can be the destination of combines. */ |