--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gcc.dg/float-range-4.c	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,43 @@
+/* PR 23572 : warnings for out of range floating-point constants.  */
+/* { dg-do compile } */
+/* { dg-options "-Wno-overflow -std=c99" } */
+/* { dg-skip-if "No Inf support" { spu-*-* } } */
+#include <math.h>
+
+#ifndef INFINITY
+#define INFINITY (__builtin_inff ())
+#endif
+
+void overflow(void)
+{
+  float f1 = 3.5E+38f;  
+  float f2 = -3.5E+38f; 
+  float f3 = INFINITY;
+  float f4 = -INFINITY;
+
+  double d1 = 1.9E+308; 
+  double d2 = -1.9E+308;
+  double d3 = INFINITY;
+  double d4 = -INFINITY;
+}
+
+void underflow(void)
+{
+  float f11 = 3.3E-10000000000000000000f;
+  float f22 = -3.3E-10000000000000000000f;
+  float f1 = 3.3E-46f;  
+  float f2 = -3.3E-46f; 
+  float f3 = 0;
+  float f4 = -0;
+  float f5 = 0.0;
+  float f6 = -0.0;
+
+  double d11 = 3.3E-10000000000000000000;
+  double d22 = -3.3E-10000000000000000000;
+  double d1 = 1.4E-325; 
+  double d2 = -1.4E-325;
+  double d3 = 0;
+  double d4 = -0;
+  double d5 = 0.0;
+  double d6 = -0.0;
+}