--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-10.c	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,25 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -fdump-tree-pre-stats" } */
+
+union loc {  unsigned reg; signed offset; };
+void __frame_state_for (volatile char *state_in, int x)
+{
+  /* We should move all the loads out of this loop. Right now, we only
+     move one.  It takes two insertions because we insert a cast.  */
+    union loc fs;
+    int reg;
+    for (;;)     {
+        switch (x)  {
+	    case 0:
+		*state_in = fs.reg;
+	    case 1:
+		*state_in = fs.offset;
+	}
+    }
+}
+
+/* This is a weird testcase.  It should need PPRE to hoist the loop
+   invariants and the volatileness of state_in prevents DSE of the
+   first store.  Thus, this is XFAILed.  */
+
+/* { dg-final { scan-tree-dump "Insertions: 2" "pre" { xfail *-*-* } } } */