[COMMITTED, PATCH] s390: testsuite: Fix autovec-double-signaling-eq-z13.c

[Stefan Schulze Frielinghaus]

Since r15-3992-g698e0ec89bc096 we optimize x<=y && x>=y to x==y.
Honour signaling NaNs by using option -fsignaling-nans in order to
prevent this.

gcc/testsuite/ChangeLog:

        * gcc.target/s390/zvector/autovec-double-signaling-eq-z13.c:
        Honour sNaNs.
---
 .../gcc.target/s390/zvector/autovec-double-signaling-eq-z13.c   | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git 
a/gcc/testsuite/gcc.target/s390/zvector/autovec-double-signaling-eq-z13.c 
b/gcc/testsuite/gcc.target/s390/zvector/autovec-double-signaling-eq-z13.c
index 1806fa8c60e..ad097efcee9 100644
--- a/gcc/testsuite/gcc.target/s390/zvector/autovec-double-signaling-eq-z13.c
+++ b/gcc/testsuite/gcc.target/s390/zvector/autovec-double-signaling-eq-z13.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O3 -march=z13 -mzvector -mzarch" } */
+/* { dg-options "-O3 -march=z13 -mzvector -mzarch -fsignaling-nans" } */
 
 #include "autovec.h"
 
-- 
2.48.1