1 files changed, 34 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/vect/pr84485.c b/gcc/testsuite/gcc.dg/vect/pr84485.c
new file mode 100644
index 00000000000..ad25d3642c8
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/vect/pr84485.c
@@ -0,0 +1,34 @@
+/* { dg-do run } */
+
+#include "tree-vect.h"
+
+#define N 256
+
+void __attribute__ ((noinline, noclone))
+f (unsigned long incx, unsigned long incy,
+   float *restrict dx, float *restrict dy)
+{
+  unsigned long ix = 0, iy = 0;
+  for (unsigned long i = 0; i < N; ++i)
+    {
+      dy[iy] += dx[ix];
+      ix += incx;
+      iy += incy;
+    }
+}
+
+float a = 0.0;
+float b[N];
+
+int
+main (void)
+{
+  check_vect ();
+
+  for (int i = 0; i < N; ++i)
+    b[i] = i;
+  f (1, 0, b, &a);
+  if (a != N * (N - 1) / 2)
+    __builtin_abort ();
+  return 0;
+}