tattr-2.c: Add -fno-ipa-icf to dg-options.

	* gcc.target/s390/target-attribute/tattr-2.c: Add -fno-ipa-icf
	to dg-options.
	(p0): Add missing dg-error.

From-SVN: r244571

gcc/ChangeLog

+2017-01-18  Jakub Jelinek  <jakub@redhat.com>
+
+	* gcc.target/s390/target-attribute/tattr-2.c: Add -fno-ipa-icf
+	to dg-options.
+	(p0): Add missing dg-error.
+
 2017-01-18  Toma Tabacu  <toma.tabacu@imgtec.com>
 
 	* config/mips/mips.h (ISA_HAS_DIV3): Remove unused macro.

gcc/testsuite/gcc.target/s390/target-attribute/tattr-2.c

@@ -2,7 +2,7 @@
 
 /* { dg-do compile */
 /* { dg-require-effective-target target_attribute } */
-/* { dg-options "-O3 -march=zEC12 -mno-htm" } */
+/* { dg-options "-O3 -march=zEC12 -mno-htm -fno-ipa-icf" } */
 
 #pragma GCC target("htm")
 void p1(void)
@@ -20,7 +20,7 @@ void p0(void)
 #ifdef __HTM__
 #error __HTM__ is defined
 #endif
-  __builtin_tend ();
+  __builtin_tend (); /* { dg-error "is not supported without -mhtm" } */
 }
 #pragma GCC reset_options