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-rw-r--r--gcc/tree-vectorizer.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/gcc/tree-vectorizer.c b/gcc/tree-vectorizer.c
index 26a1846..2a60d37 100644
--- a/gcc/tree-vectorizer.c
+++ b/gcc/tree-vectorizer.c
@@ -1283,7 +1283,11 @@ vectorize_loops (void)
/* Fold IFN_GOMP_SIMD_{VF,LANE,LAST_LANE,ORDERED_{START,END}} builtins. */
if (cfun->has_simduid_loops)
- adjust_simduid_builtins (simduid_to_vf_htab);
+ {
+ adjust_simduid_builtins (simduid_to_vf_htab);
+ /* Avoid stale SCEV cache entries for the SIMD_LANE defs. */
+ scev_reset ();
+ }
/* Shrink any "omp array simd" temporary arrays to the
actual vectorization factors. */