[PATCH] Testcase for PR51238

[Richard Biener]

Which is fixed on trunk.

Committed.

Richard.

2012-12-05  Richard Biener  <rguent...@suse.de>

        PR tree-optimization/51238
        * gcc.dg/torture/pr51238.c: New testcase.

Index: gcc/testsuite/gcc.dg/torture/pr51238.c
===================================================================
--- gcc/testsuite/gcc.dg/torture/pr51238.c      (revision 0)
+++ gcc/testsuite/gcc.dg/torture/pr51238.c      (working copy)
@@ -0,0 +1,16 @@
+/* { dg-do compile } */
+/* { dg-options "-ftree-loop-distribution" } */
+
+extern int ia[];
+extern int ib[];
+int i;
+
+void
+foo (int l)
+{
+  while (l--)
+    {
+      i = ia[l];
+      ia[l] = ib[l] = 0;
+    }
+}