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| author | Jeff Law <law@redhat.com> | 2014-04-28 07:38:19 -0600 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 2014-04-28 07:38:19 -0600 |
| commit | 07357f2f5a81e008b78af738e5e0050d850425a8 (patch) | |
| tree | a75c0f64105fcedae9d4a9f266e4f16235c96325 /gcc | |
| parent | 6c6aa8e6ca95c9415d21359e606bc0bba1b87846 (diff) | |
| download | gcc-07357f2f5a81e008b78af738e5e0050d850425a8.zip gcc-07357f2f5a81e008b78af738e5e0050d850425a8.tar.gz gcc-07357f2f5a81e008b78af738e5e0050d850425a8.tar.bz2 | |
re PR tree-optimization/60902 (ffmpeg built with gcc 4.9 RC produces incorrect flac playback code)
PR tree-optimization/60902
* tree-ssa-threadedge.c
(record_temporary_equivalences_from_stmts_at_dest): Only iterate
over real defs when invalidating outputs from statements that do not
produce useful outputs for threading.
From-SVN: r209860
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 8 | ||||
| -rw-r--r-- | gcc/tree-ssa-threadedge.c | 2 |
2 files changed, 9 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 61fd558..89930b0 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,11 @@ +2014-04-28 Jeff Law <law@redhat.com> + + PR tree-optimization/60902 + * tree-ssa-threadedge.c + (record_temporary_equivalences_from_stmts_at_dest): Only iterate + over real defs when invalidating outputs from statements that do not + produce useful outputs for threading. + 2014-04-28 Richard Biener <rguenther@suse.de> PR tree-optimization/60979 diff --git a/gcc/tree-ssa-threadedge.c b/gcc/tree-ssa-threadedge.c index 8a0103b..7621348 100644 --- a/gcc/tree-ssa-threadedge.c +++ b/gcc/tree-ssa-threadedge.c @@ -398,7 +398,7 @@ record_temporary_equivalences_from_stmts_at_dest (edge e, ssa_op_iter iter; if (backedge_seen) - FOR_EACH_SSA_TREE_OPERAND (op, stmt, iter, SSA_OP_ALL_DEFS) + FOR_EACH_SSA_TREE_OPERAND (op, stmt, iter, SSA_OP_DEF) { /* This call only invalidates equivalences created by PHI nodes. This is by design to keep the cost of |