Require fenv_exceptions in gcc.dg/torture/float128* tests

	* gcc.dg/torture/float128-cmp-invalid.c: Require fenv_exceptions.
	* gcc.dg/torture/float128-div-underflow.c: Likewise.
	* gcc.dg/torture/float128-extend-nan.c: Likewise.

From-SVN: r204792

gcc/testsuite/ChangeLog

+2013-11-14  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+
+	* gcc.dg/torture/float128-cmp-invalid.c: Require fenv_exceptions.
+	* gcc.dg/torture/float128-div-underflow.c: Likewise.
+	* gcc.dg/torture/float128-extend-nan.c: Likewise.
+
 2013-11-14  Richard Biener  <rguenther@suse.de>
 
 	* gcc.dg/tree-ssa/ssa-vrp-thread-1.c: Fix target selector.

gcc/testsuite/gcc.dg/torture/float128-cmp-invalid.c

 /* Test for "invalid" exceptions from __float128 comparisons.  */
 /* { dg-do run { target i?86-*-* x86_64-*-* ia64-*-* } } */
 /* { dg-options "" } */
+/* { dg-require-effective-target fenv_exceptions } */
 
 #include <fenv.h>
 #include <stdlib.h>

gcc/testsuite/gcc.dg/torture/float128-div-underflow.c

 /* Test for spurious underflow from __float128 division.  */
 /* { dg-do run { target i?86-*-* x86_64-*-* ia64-*-* } } */
 /* { dg-options "" } */
+/* { dg-require-effective-target fenv_exceptions } */
 
 #include <fenv.h>
 #include <stdlib.h>

gcc/testsuite/gcc.dg/torture/float128-extend-nan.c

 /* Test extensions to __float128 quiet signaling NaNs.  */
 /* { dg-do run { target i?86-*-* x86_64-*-* ia64-*-* } } */
 /* { dg-options "-fsignaling-nans" } */
+/* { dg-require-effective-target fenv_exceptions } */
 
 #include <fenv.h>
 #include <float.h>