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| author | drow <drow@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-08-01 16:53:01 +0000 |
|---|---|---|
| committer | drow <drow@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-08-01 16:53:01 +0000 |
| commit | 5f6261a7b7c907b0691d23edfa20ec0ca1051c87 (patch) | |
| tree | d02919ec89b4a0c74b6a0015731011335652b7ca /gcc/tree-ssa-sccvn.c | |
| parent | b4c4fea4634a5d4938608d5b10287b632ade40c8 (diff) | |
| download | gcc-5f6261a7b7c907b0691d23edfa20ec0ca1051c87.tar.gz | |
PR tree-optimization/32919
* tree-ssa-sccvn.c (visit_phi): Do not visit abnormal PHIs.
* tree-ssa-coalesce.c (ssa_conflicts_dump): New.
(coalesce_ssa_name): Call it.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@127132 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree-ssa-sccvn.c')
| -rw-r--r-- | gcc/tree-ssa-sccvn.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/tree-ssa-sccvn.c b/gcc/tree-ssa-sccvn.c index 607cd1d298c..5e6a86a4b6c 100644 --- a/gcc/tree-ssa-sccvn.c +++ b/gcc/tree-ssa-sccvn.c @@ -1259,6 +1259,11 @@ visit_phi (tree phi) bool allsame = true; int i; + /* TODO: We could check for this in init_sccvn, and replace this + with a gcc_assert. */ + if (SSA_NAME_OCCURS_IN_ABNORMAL_PHI (PHI_RESULT (phi))) + return set_ssa_val_to (PHI_RESULT (phi), PHI_RESULT (phi)); + /* See if all non-TOP arguments have the same value. TOP is equivalent to everything, so we can ignore it. */ for (i = 0; i < PHI_NUM_ARGS (phi); i++) |