r273095 - [X86] _MM_ALIGN16 attribute support for non-windows targets

[Zvi Rackover via cfe-commits]

Author: zvi
Date: Sat Jun 18 15:01:07 2016
New Revision: 273095

URL: http://llvm.org/viewvc/llvm-project?rev=273095&view=rev
Log:
[X86]  _MM_ALIGN16 attribute support for non-windows targets

Summary:
This patch adds support for the _MM_ALIGN16 attribute on non-windows targets. This aligns Clang with ICC which supports the attribute on all targets.

Fixes PR28056

Reviewers: aaboud, echristo, cfe-commits, mkuper

Subscribers: zvi, mehdi_amini

Projects: #clang-c

Differential Revision: http://reviews.llvm.org/D21173

Modified:
    cfe/trunk/lib/Headers/xmmintrin.h
    cfe/trunk/test/Headers/xmmintrin.c

Modified: cfe/trunk/lib/Headers/xmmintrin.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Headers/xmmintrin.h?rev=273095&r1=273094&r2=273095&view=diff
==============================================================================
--- cfe/trunk/lib/Headers/xmmintrin.h (original)
+++ cfe/trunk/lib/Headers/xmmintrin.h Sat Jun 18 15:01:07 2016
@@ -2821,9 +2821,7 @@ _mm_movemask_ps(__m128 __a)
 }
 
 
-#ifdef _MSC_VER
-#define _MM_ALIGN16 __declspec(align(16))
-#endif
+#define _MM_ALIGN16 __attribute__((aligned(16)))
 
 #define _MM_SHUFFLE(z, y, x, w) (((z) << 6) | ((y) << 4) | ((x) << 2) | (w))
 

Modified: cfe/trunk/test/Headers/xmmintrin.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Headers/xmmintrin.c?rev=273095&r1=273094&r2=273095&view=diff
==============================================================================
--- cfe/trunk/test/Headers/xmmintrin.c (original)
+++ cfe/trunk/test/Headers/xmmintrin.c Sat Jun 18 15:01:07 2016
@@ -7,6 +7,9 @@
 // REQUIRES: x86-registered-target
 #include <xmmintrin.h>
 
+// CHECK: @c = common global i8 0, align 16
+_MM_ALIGN16 char c;
+
 // Make sure the last step of _mm_cvtps_pi16 converts <4 x i32> to <4 x i16> by
 // checking that clang emits PACKSSDW instead of PACKSSWB.