--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/g++.dg/warn/Wreturn-local-addr-6.C	Thu Feb 13 11:34:05 2020 +0900
@@ -0,0 +1,29 @@
+/* PR c/90737 - inconsistent address of a local converted to intptr_t
+   between callee and caller
+   { dg-do compile }
+   { dg-options "-O1 -Wall -Wreturn-local-addr -fdump-tree-optimized" } */
+
+typedef __INTPTR_TYPE__ intptr_t;
+
+const intptr_t&
+return_addr_label_as_intref (void)
+{
+ label:
+  if ((const intptr_t*)&&label == 0)
+    __builtin_exit (1);
+
+  return *(const intptr_t*)&&label;   // { dg-warning "\\\[-Wreturn-local-addr]" } */
+}
+
+const intptr_t&
+return_addr_local_as_intref (void)
+{
+  int a[1];
+  if ((const intptr_t*)a == 0)
+    __builtin_exit (1);
+
+  return (const intptr_t&)a;   // { dg-warning "\\\[-Wreturn-local-addr]" } */
+}
+
+/* Verify that the return value has been replaced with zero:
+  { dg-final { scan-tree-dump-times "return 0;" 2 "optimized" } } */