1 files changed, 31 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/torture/pr85989.c b/gcc/testsuite/gcc.dg/torture/pr85989.c
new file mode 100644
index 00000000000..5cfd7016fb5
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/pr85989.c
@@ -0,0 +1,31 @@
+/* { dg-do run } */
+
+#define N 9
+
+void __attribute__((noinline, noclone))
+f (double x, double y, double *res)
+{
+  y = -y;
+  for (int i = 0; i < N; ++i)
+    {
+      double tmp = y;
+      y = x;
+      x = tmp;
+      res[i] = i;
+    }
+  res[N] = y * y;
+  res[N + 1] = x;
+}
+
+int
+main (void)
+{
+  double res[N + 2];
+  f (10, 20, res);
+  for (int i = 0; i < N; ++i)
+    if (res[i] != i)
+      __builtin_abort ();
+  if (res[N] != 100 || res[N + 1] != -20)
+    __builtin_abort ();
+  return 0;
+}