target-supports.exp (check_effective_target_avx512f): Make sure the builtin…

target-supports.exp (check_effective_target_avx512f): Make sure the builtin isn't optimized away as unused.

	* lib/target-supports.exp (check_effective_target_avx512f): Make sure
	the builtin isn't optimized away as unused.

From-SVN: r206270

gcc/ChangeLog

@@ -7,7 +7,7 @@
 	* cse.c (cse_process_notes_1): Don't substitute negative VOIDmode
 	new_rtx into UNSIGNED_FLOAT rtxes.
 
-Copyright (C) 2013 Free Software Foundation, Inc.
+Copyright (C) 2014 Free Software Foundation, Inc.
 
 Copying and distribution of this file, with or without modification,
 are permitted in any medium without royalty provided the copyright

gcc/testsuite/ChangeLog

 2014-01-01  Jakub Jelinek  <jakub@redhat.com>
 
+	* lib/target-supports.exp (check_effective_target_avx512f): Make sure
+	the builtin isn't optimized away as unused.
+
 	PR rtl-optimization/59647
 	* g++.dg/opt/pr59647.C: New test.
 
-Copyright (C) 2013 Free Software Foundation, Inc.
+Copyright (C) 2014 Free Software Foundation, Inc.
 
 Copying and distribution of this file, with or without modification,
 are permitted in any medium without royalty provided the copyright

gcc/testsuite/lib/target-supports.exp

@@ -5176,9 +5176,9 @@ proc check_effective_target_avx512f { } {
     return [check_no_compiler_messages avx512f object {
 	typedef double __m512d __attribute__ ((__vector_size__ (64)));
 
-	void _mm512_add (__m512d a)
+	__m512d _mm512_add (__m512d a)
 	{
-	   __builtin_ia32_addpd512_mask (a, a, a, 1, 4);
+	  return __builtin_ia32_addpd512_mask (a, a, a, 1, 4);
 	}
     } "-O2 -mavx512f" ]
 }