[PATCH] Fix check_effective_target_avx512f

Jakub Jelinek jakub@redhat.com
Wed Jan 1 00:05:00 GMT 2014


Hi!

I've noticed that all abi-avx512f.exp tests fail when the assembler doesn't
support avx512f.  The problem is that the builtin has been optimized away
as unused and thus it passed even with assembler that doesn't support EVEX.

Fixed thusly, tested on x86_64-linux, committed to trunk as obvious.

Happy New Year to everyone!

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.

--- gcc/testsuite/lib/target-supports.exp.jj	2013-12-31 12:51:09.000000000 +0100
+++ gcc/testsuite/lib/target-supports.exp	2014-01-01 01:00:28.086093259 +0100
@@ -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" ]
 }

	Jakub



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