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| author | Richard Biener <rguenther@suse.de> | 2019-09-24 10:10:49 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2019-09-24 10:10:49 +0000 |
| commit | 3f9e08f57e1de90de5bc9d2a00815ea38064c733 (patch) | |
| tree | 90c3e98963cb030009d049f320a2e986b1bb0757 /gcc/tree-ssa-sccvn.c | |
| parent | 47d17f705826669e7a7c56f1bee54b4231870e41 (diff) | |
| download | gcc-3f9e08f57e1de90de5bc9d2a00815ea38064c733.zip gcc-3f9e08f57e1de90de5bc9d2a00815ea38064c733.tar.gz gcc-3f9e08f57e1de90de5bc9d2a00815ea38064c733.tar.bz2 | |
tree-ssa-sccvn.c (vn_reference_lookup_3): Valueize MEM_REF base.
2019-09-24 Richard Biener <rguenther@suse.de>
* tree-ssa-sccvn.c (vn_reference_lookup_3): Valueize MEM_REF
base.
* gcc.dg/torture/20190924-1.c: New testcase.
From-SVN: r276092
Diffstat (limited to 'gcc/tree-ssa-sccvn.c')
| -rw-r--r-- | gcc/tree-ssa-sccvn.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/gcc/tree-ssa-sccvn.c b/gcc/tree-ssa-sccvn.c index c29e2de..44b8c67 100644 --- a/gcc/tree-ssa-sccvn.c +++ b/gcc/tree-ssa-sccvn.c @@ -2935,8 +2935,9 @@ vn_reference_lookup_3 (ao_ref *ref, tree vuse, void *data_, else return (void *)-1; } - if (TREE_CODE (rhs) != SSA_NAME - && TREE_CODE (rhs) != ADDR_EXPR) + if (TREE_CODE (rhs) == SSA_NAME) + rhs = SSA_VAL (rhs); + else if (TREE_CODE (rhs) != ADDR_EXPR) return (void *)-1; /* The bases of the destination and the references have to agree. */ |