--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gcc.dg/pr69615.c	Thu Oct 25 07:37:49 2018 +0900
@@ -0,0 +1,37 @@
+/* PR tree-optimization/69615 */
+/* { dg-do compile } */
+/* { dg-options "-O2 -fdump-tree-optimized" } */
+/* { dg-final { scan-tree-dump-not " >= 0" "optimized" } } */
+/* { dg-final { scan-tree-dump-not " < 0" "optimized" } } */
+/* { dg-final { scan-tree-dump-not " <= 23" "optimized" } } */
+/* { dg-final { scan-tree-dump-not " > 23" "optimized" } } */
+
+extern void foo (void);
+
+void
+f1 (int x)
+{
+  if (x >= 0 && x <= __INT_MAX__ - 1)
+    foo ();
+}
+
+void
+f2 (int x, int y)
+{
+  if (x >= 0 && y && x <= __INT_MAX__ - 1)
+    foo ();
+}
+
+void
+f3 (int x)
+{
+  if (x > -__INT_MAX__ - 1 && x <= 23)
+    foo ();
+}
+
+void
+f4 (int x, int y)
+{
+  if (x > -__INT_MAX__ - 1 && y && x <= 23)
+    foo ();
+}