1 files changed, 25 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/loop-6.c b/gcc/testsuite/gcc.dg/loop-6.c
new file mode 100644
index 00000000000..653854eb8a0
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/loop-6.c
@@ -0,0 +1,25 @@
+/* PR optimization/18577 */
+/* Origin: Falk Hueffner <falk@debian.org> */
+
+/* { dg-do run } */
+/* { dg-options "-O2 -funroll-all-loops" } */
+
+static float tfcos12[3];
+__attribute__((noinline)) double f(double x) { return x; }
+int g;
+
+int main(void)
+{
+  int i, j;
+  for (i = 0; i < 1; i++) 
+    tfcos12[i] = 0.5;
+    
+  for (i = 0; i < 1; i++)
+    {
+      tfcos12[i] = 0.5 * f(i);
+      for (j = 0; j < 12; j++)
+	g++;
+    }
+
+  return 0;
+}