1 files changed, 26 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-36.c b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-36.c
new file mode 100644
index 000000000..a8a2dbaad
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-36.c
@@ -0,0 +1,26 @@
+/* { dg-do compile } */
+/* { dg-options "-O -fdump-tree-fre1-details" } */
+
+extern int opening;
+extern int middle_game;
+int s;
+extern int d[1];
+void PreEvaluate(int wtm)
+{
+  int i, j;
+  if (opening) {
+      d[0]=1;
+  }
+  else if (middle_game) {
+      d[0]=-1;
+  }
+  if (4 != opening) {
+      return;
+  }
+  s = 1;
+}
+
+/* We should be able to CSE the second load of opening.  */
+
+/* { dg-final { scan-tree-dump "Replaced opening" "fre1" } } */
+/* { dg-final { cleanup-tree-dump "fre1" } } */