--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gcc.dg/ipa/pr82808.c	Thu Oct 25 07:37:49 2018 +0900
@@ -0,0 +1,27 @@
+/* { dg-options "-O2" } */
+/* { dg-do run } */
+
+static void __attribute__((noinline))
+foo (double *a, double x)
+{
+  *a = x;
+}
+
+static double  __attribute__((noinline))
+f_c1 (int m, double *a)
+{
+  foo (a, m);
+  return *a;
+}
+
+int
+main (){
+  double data;
+  double ret = 0 ;
+
+  if ((ret = f_c1 (2, &data)) != 2)
+    {
+      __builtin_abort ();
+    }
+  return 0;
+}