testsuite: pr59833.c and pr61441.c should use -fsignaling-nans

The testcases pr59833.c and pr61441.c check whether signaling NaNs as
input to some operation result in quiet NaNs.  Without -fsignaling-nans
this is not guaranteed to happen.  So, this patch add this option to
these testcases.


	* gcc.dg/pr59833.c: Add -fsignaling-nans to options.
	* gcc.dg/pr61441.c: Ditto.

From-SVN: r245533

gcc/testsuite/ChangeLog

+2017-02-17  Segher Boessenkool  <segher@kernel.crashing.org>
+
+	* gcc.dg/pr59833.c: Add -fsignaling-nans to options.
+	* gcc.dg/pr61441.c: Ditto.
+
 2017-02-17  Martin Liska  <mliska@suse.cz>
 
 	PR rtl-optimization/79574

gcc/testsuite/gcc.dg/pr59833.c

 /* { dg-do run { target { *-*-linux* *-*-gnu* } } } */
-/* { dg-options "-O0 -lm" } */
+/* { dg-options "-O0 -lm -fsignaling-nans" } */
 /* { dg-add-options ieee } */
 /* { dg-require-effective-target issignaling } */
 

gcc/testsuite/gcc.dg/pr61441.c

 /* { dg-do run { target { *-*-linux* *-*-gnu* } } } */
-/* { dg-options "-O1 -lm -fexcess-precision=standard" } */
+/* { dg-options "-O1 -lm -fexcess-precision=standard -fsignaling-nans" } */
 /* { dg-require-effective-target issignaling } */
 
 #define _GNU_SOURCE