MIPS: Force assembly output for msa-builtins-err.c.

gcc/testsuite

	* gcc.target/mips/msa-builtins-err.c (dg-options): Add 
	-ffat-lto-objects option.

From-SVN: r243639

gcc/testsuite/ChangeLog

+2016-12-14  Toma Tabacu  <toma.tabacu@imgtec.com>
+
+	* gcc.target/mips/msa-builtins-err.c (dg-options): Add 
+	-ffat-lto-objects option.
+
 2016-12-14  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
 	    Jakub Jelinek  <jakub@redhat.com>
 

gcc/testsuite/gcc.target/mips/msa-builtins-err.c

 /* Test builtins for MIPS MSA ASE instructions */
 /* { dg-do compile } */
-/* { dg-options "-mfp64 -mhard-float -mmsa" } */
+/* { dg-options "-mfp64 -mhard-float -mmsa -ffat-lto-objects" } */
+/* Because this test only uses dg-error, we need to guarantee assembly
+   generation ourselves by using -ffat-lto-objects. */
 
 #include <msa.h>