1 files changed, 27 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/ssa-pre-12.c b/gcc/testsuite/gcc.dg/tree-ssa/ssa-pre-12.c
new file mode 100644
index 000000000..fd80e3d8d
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/ssa-pre-12.c
@@ -0,0 +1,27 @@
+/* { dg-do compile } */ 
+/* { dg-options "-O2 -fdump-tree-pre-stats" } */
+double cos (double) __attribute__ ((const));
+double sin (double) __attribute__ ((const));
+double f(double a)
+{
+  double b;
+  double c,d;
+  double (*fp) (double) __attribute__ ((const));
+  /* Fully redundant call, but we need a phi node to merge the results.  */
+  if (a < 2.0)
+    {
+      fp = sin;
+      c = fp (a);
+    }
+  else
+    {
+      c = 1.0; 
+      fp = cos;
+      c = fp (a);
+    }
+  d = fp (a);
+  return d + c;
+}
+
+/* { dg-final { scan-tree-dump-times "Eliminated: 1" 1 "pre"} } */
+/* { dg-final { cleanup-tree-dump "pre" } } */