[Patch testsuite] Check range of exponent for tests added in r241817

gcc/ChangeLog

2016-11-10  James Greenhalgh  <james.greenhalgh@arm.com>

	* gcc.dg/torture/fp-int-convert.h (M_OK2): New, use it in
	WVAL0S tests added in r241817.

From-SVN: r242041

gcc/testsuite/ChangeLog

+2016-11-10  James Greenhalgh  <james.greenhalgh@arm.com>
+
+	* gcc.dg/torture/fp-int-convert.h (M_OK2): New, use it in
+	WVAL0S tests added in r241817.
+
 2016-11-10  Jakub Jelinek  <jakub@redhat.com>
 
 	* gfortran.dg/gomp/pr77516.f90: Add dg-warning.

gcc/testsuite/gcc.dg/torture/fp-int-convert.h

@@ -53,13 +53,14 @@ do {								\
   TEST_I_F_VAL (U, F, HVAL1U (P, U), P_OK (P, U));		\
   TEST_I_F_VAL (U, F, HVAL1U (P, U) + 1, P_OK (P, U));		\
   TEST_I_F_VAL (U, F, HVAL1U (P, U) - 1, P_OK (P, U));		\
-  TEST_I_F_VAL (I, F, WVAL0S (I), 1);				\
-  TEST_I_F_VAL (I, F, -WVAL0S (I), 1);				\
+  TEST_I_F_VAL (I, F, WVAL0S (I), M_OK2 (M, U));		\
+  TEST_I_F_VAL (I, F, -WVAL0S (I), M_OK2 (M, U));		\
 } while (0)
 
 #define P_OK(P, T) ((P) >= sizeof(T) * CHAR_BIT)
 #define P_OK1(P, T) ((P) >= sizeof(T) * CHAR_BIT - 1)
 #define M_OK1(M, T) ((M) > sizeof(T) * CHAR_BIT - 1)
+#define M_OK2(M, T) ((M) > sizeof(T) * CHAR_BIT / 2 - 1)
 #define HVAL0U(P, U) (U)(P_OK (P, U)					 \
 			 ? (U)1						 \
 			 : (((U)1 << (sizeof(U) * CHAR_BIT - 1))	 \