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| author | Richard Guenther <rguenther@suse.de> | 2011-09-12 06:01:15 +0000 |
|---|---|---|
| committer | Richard Guenther <rguenther@suse.de> | 2011-09-12 06:01:15 +0000 |
| commit | c42d02666c3c495e343e17e84feda26e59b0098c (patch) | |
| tree | 119638fa11d90259709376f446de7ae86562ed34 /gcc/tree-vect-patterns.c | |
| parent | f255a29fe3824d2e675380e4fee0e599e122687b (diff) | |
2011-09-12 Richard Guenther <rguenther@suse.de>
PR tree-optimization/50343
* tree-vect-patterns.c (vect_recog_dot_prod_pattern): Check
that the reduction is over an SSA name before checking its
definition.
git-svn-id: https://gcc.gnu.org/svn/gcc/trunk@178775 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree-vect-patterns.c')
| -rw-r--r-- | gcc/tree-vect-patterns.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/gcc/tree-vect-patterns.c b/gcc/tree-vect-patterns.c index 0d788827513..7fc107cafa9 100644 --- a/gcc/tree-vect-patterns.c +++ b/gcc/tree-vect-patterns.c @@ -256,6 +256,8 @@ vect_recog_dot_prod_pattern (VEC (gimple, heap) **stmts, tree *type_in, we know that oprnd1 is the reduction variable (defined by a loop-header phi), and oprnd0 is an ssa-name defined by a stmt in the loop body. Left to check that oprnd0 is defined by a (widen_)mult_expr */ + if (TREE_CODE (oprnd0) != SSA_NAME) + return NULL; prod_type = half_type; stmt = SSA_NAME_DEF_STMT (oprnd0); |