zvi created this revision. zvi added reviewers: aaboud, mkuper, echristo, cfe-commits. zvi set the repository for this revision to rL LLVM. zvi added a project: clang-c. Herald added a subscriber: mehdi_amini.
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 Repository: rL LLVM http://reviews.llvm.org/D21173 Files: lib/Headers/xmmintrin.h test/Headers/xmmintrin.c Index: test/Headers/xmmintrin.c =================================================================== --- test/Headers/xmmintrin.c +++ test/Headers/xmmintrin.c @@ -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. Index: lib/Headers/xmmintrin.h =================================================================== --- lib/Headers/xmmintrin.h +++ lib/Headers/xmmintrin.h @@ -2823,6 +2823,8 @@ #ifdef _MSC_VER #define _MM_ALIGN16 __declspec(align(16)) +#else +#define _MM_ALIGN16 __attribute__((aligned(16))) #endif #define _MM_SHUFFLE(z, y, x, w) (((z) << 6) | ((y) << 4) | ((x) << 2) | (w))
Index: test/Headers/xmmintrin.c =================================================================== --- test/Headers/xmmintrin.c +++ test/Headers/xmmintrin.c @@ -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. Index: lib/Headers/xmmintrin.h =================================================================== --- lib/Headers/xmmintrin.h +++ lib/Headers/xmmintrin.h @@ -2823,6 +2823,8 @@ #ifdef _MSC_VER #define _MM_ALIGN16 __declspec(align(16)) +#else +#define _MM_ALIGN16 __attribute__((aligned(16))) #endif #define _MM_SHUFFLE(z, y, x, w) (((z) << 6) | ((y) << 4) | ((x) << 2) | (w))
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