PR 68749: S/390: Disable ifcvt-4.c for -m31.

gcc/testsuite/ChangeLog:

2017-02-23  Dominik Vogt  <vogt@linux.vnet.ibm.com>

	PR 68749
	* gcc.dg/ifcvt-4.c: Disable for -m31, use -march=z196.

From-SVN: r245684

gcc/testsuite/ChangeLog

+2017-02-23  Dominik Vogt  <vogt@linux.vnet.ibm.com>
+
+	PR 68749
+	* gcc.dg/ifcvt-4.c: Disable for -m31, use -march=z196.
+
 2017-02-23  Richard Biener  <rguenther@suse.de>
 
 	PR tree-optimization/79683

gcc/testsuite/gcc.dg/ifcvt-4.c

 /* { dg-options "-fdump-rtl-ce1 -O2 --param max-rtl-if-conversion-insns=3 --param max-rtl-if-conversion-unpredictable-cost=100" } */
 /* { dg-additional-options "-misel" { target { powerpc*-*-* } } } */
-/* { dg-skip-if "Multiple set if-conversion not guaranteed on all subtargets" { "arm*-*-* hppa*64*-*-* visium-*-*" riscv*-*-* } }  */
+/* { dg-additional-options "-march=z196" { target { s390x-*-* } } } */
+/* { dg-skip-if "Multiple set if-conversion not guaranteed on all subtargets" { "arm*-*-* hppa*64*-*-* s390-*-* visium-*-*" riscv*-*-* } }  */
+/* { dg-skip-if "" { "s390x-*-*" } { "-m31" } }  */
 
 typedef int word __attribute__((mode(word)));