Fix neon test fails on non-neon configs.

	gcc/testsuite/
	* lib/target-supports.exp
	(check_effective_target_arm_neon_ok_nocache): Don't try to test Neon
	on ARM architures before v7.

From-SVN: r219602

gcc/testsuite/ChangeLog

+2015-01-14  Andrew Stubbs  <ams@codesourcery.com>
+
+	* lib/target-supports.exp
+	(check_effective_target_arm_neon_ok_nocache): Don't try to test Neon
+	on ARM architures before v7.
+
 2015-01-14  Andrew MacLeod  <amacleod@redhat.com>
 
 	PR middle-end/59448

gcc/testsuite/lib/target-supports.exp

@@ -2592,6 +2592,11 @@ proc check_effective_target_arm_neon_ok_nocache { } {
 	    if { [check_no_compiler_messages_nocache arm_neon_ok object {
 		#include "arm_neon.h"
 		int dummy;
+		/* Avoid the case where a test adds -mfpu=neon, but the toolchain is
+		   configured for -mcpu=arm926ej-s, for example.  */
+		#if __ARM_ARCH < 7
+		#error Architecture too old for NEON.
+		#endif
 	    } "$flags"] } {
 		set et_arm_neon_flags $flags
 		return 1