1 files changed, 24 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/vect/vect-pr120927.c b/gcc/testsuite/gcc.dg/vect/vect-pr120927.c
new file mode 100644
index 0000000..793593f
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/vect/vect-pr120927.c
@@ -0,0 +1,24 @@
+/* { dg-additional-options "--param vect-partial-vector-usage=1" } */
+/* { dg-additional-options "-mavx512bw -mavx512vl" { target avx512f_runtime } } */
+
+#include "tree-vect.h"
+
+static const double a[] = { 1., 2., 3., 4., 5. };
+
+void __attribute__((noipa))
+foo (double *b, double *bp, double c, int n)
+{
+  for (int i = 0; i < n; ++i)
+    b[i] = bp[i] = a[i] * c;
+}
+
+int main()
+{
+  double b[6], bp[6];
+  b[5] = bp[5] = 13.;
+  check_vect ();
+  foo (b, bp, 3., 5);
+  if (b[5] != 13. || bp[5] != 13.)
+    abort ();
+  return 0;
+}