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-rw-r--r--gcc/tree-vect-patterns.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/tree-vect-patterns.c b/gcc/tree-vect-patterns.c
index 95ce38d..4b3065e 100644
--- a/gcc/tree-vect-patterns.c
+++ b/gcc/tree-vect-patterns.c
@@ -2090,7 +2090,8 @@ vect_recog_vector_vector_shift_pattern (vec<gimple *> *stmts,
return NULL;
tree def = NULL_TREE;
- if (gimple_assign_cast_p (def_stmt))
+ stmt_vec_info def_vinfo = vinfo_for_stmt (def_stmt);
+ if (!STMT_VINFO_IN_PATTERN_P (def_vinfo) && gimple_assign_cast_p (def_stmt))
{
tree rhs1 = gimple_assign_rhs1 (def_stmt);
if (TYPE_MODE (TREE_TYPE (rhs1)) == TYPE_MODE (TREE_TYPE (oprnd0))