1 files changed, 24 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/loadpre5.c b/gcc/testsuite/gcc.dg/tree-ssa/loadpre5.c
new file mode 100644
index 000000000..475050a6f
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/loadpre5.c
@@ -0,0 +1,24 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -fdump-tree-pre-stats" } */
+int p;
+int r;
+
+__attribute__ ((noinline))
+static int a(void)
+{
+  return p;
+}
+int foo(int argc)
+{
+  int q;
+  q = a();
+
+  /* We should be able to move the call to a into the if path.
+     in a perfect world, we'd actually decide that it can't touch
+     r, and not recompute it at all!.  */
+  if (argc)
+    r = 9;
+  return q + a();
+}
+/* { dg-final { scan-tree-dump-times "Eliminated: 1" 1 "pre"} } */
+/* { dg-final { cleanup-tree-dump "pre" } } */