1 files changed, 20 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/pr50017.c b/gcc/testsuite/gcc.dg/pr50017.c
new file mode 100644
index 00000000000..66bef007da1
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr50017.c
@@ -0,0 +1,20 @@
+/* PR debug/50017 */
+/* { dg-do compile } */
+/* { dg-options "-O3 -fcompare-debug" } */
+
+struct S { int r, i; };
+
+void
+foo (struct S *x, int y)
+{
+  int i;
+  for (i = 1; i < y; i++)
+    {
+      struct S a, b, c;
+      a = x[0];
+      b = x[i];
+      c.r = a.r * b.r - a.i * b.i;
+      c.i = a.r * b.i + a.i * b.r;
+      x[i] = c;
+    }
+}