mkuper created this revision. mkuper added reviewers: majnemer, echristo. mkuper added a subscriber: cfe-commits.
Both MSVC and ICC define this in xmmintrin.h, so, in terms of compatibility, I'd prefer to have it there in clang as well, even though it's MS-specific. http://reviews.llvm.org/D11753 Files: lib/Headers/xmmintrin.h test/CodeGen/ms-mm-align.c test\CodeGen\ms-mm-align.c Index: lib/Headers/xmmintrin.h =================================================================== --- lib/Headers/xmmintrin.h +++ lib/Headers/xmmintrin.h @@ -924,6 +924,11 @@ return __builtin_ia32_movmskps(__a); } + +#ifdef _MSC_VER +#define _MM_ALIGN16 __declspec(align(16)) +#endif + #define _MM_SHUFFLE(z, y, x, w) (((z) << 6) | ((y) << 4) | ((x) << 2) | (w)) #define _MM_EXCEPT_INVALID (0x0001) Index: test/CodeGen/ms-mm-align.c =================================================================== --- test/CodeGen/ms-mm-align.c +++ test/CodeGen/ms-mm-align.c @@ -0,0 +1,16 @@ +// RUN: %clang_cc1 -ffreestanding -fms-extensions -fms-compatibility -fms-compatibility-version=17.00 \ +// RUN: -triple i686--windows -Oz -emit-llvm %s -o - \ +// RUN: | FileCheck %s -check-prefix CHECK + +// Intrin.h needs size_t, but -ffreestanding prevents us from getting it from +// stddef.h. Work around it with this typedef. +typedef __SIZE_TYPE__ size_t; +#include <Intrin.h> + +void capture_ptr(int* i); +void test_mm_align16(int p) { + _MM_ALIGN16 int i; + capture_ptr(&i); +} + +// CHECK: alloca i32, align 16
Index: lib/Headers/xmmintrin.h =================================================================== --- lib/Headers/xmmintrin.h +++ lib/Headers/xmmintrin.h @@ -924,6 +924,11 @@ return __builtin_ia32_movmskps(__a); } + +#ifdef _MSC_VER +#define _MM_ALIGN16 __declspec(align(16)) +#endif + #define _MM_SHUFFLE(z, y, x, w) (((z) << 6) | ((y) << 4) | ((x) << 2) | (w)) #define _MM_EXCEPT_INVALID (0x0001) Index: test/CodeGen/ms-mm-align.c =================================================================== --- test/CodeGen/ms-mm-align.c +++ test/CodeGen/ms-mm-align.c @@ -0,0 +1,16 @@ +// RUN: %clang_cc1 -ffreestanding -fms-extensions -fms-compatibility -fms-compatibility-version=17.00 \ +// RUN: -triple i686--windows -Oz -emit-llvm %s -o - \ +// RUN: | FileCheck %s -check-prefix CHECK + +// Intrin.h needs size_t, but -ffreestanding prevents us from getting it from +// stddef.h. Work around it with this typedef. +typedef __SIZE_TYPE__ size_t; +#include <Intrin.h> + +void capture_ptr(int* i); +void test_mm_align16(int p) { + _MM_ALIGN16 int i; + capture_ptr(&i); +} + +// CHECK: alloca i32, align 16
_______________________________________________ cfe-commits mailing list cfe-commits@cs.uiuc.edu http://lists.cs.uiuc.edu/mailman/listinfo/cfe-commits