From d7b9392f59ab6ba2ab93916eca97943aabe79276 Mon Sep 17 00:00:00 2001 From: Michael Kuperstein Date: Thu, 6 Aug 2015 08:24:38 +0000 Subject: [PATCH] [X86] Add support for _MM_ALIGN16 Differential Revision: http://reviews.llvm.org/D11753 llvm-svn: 244201 --- clang/lib/Headers/xmmintrin.h | 5 +++++ clang/test/CodeGen/ms-mm-align.c | 16 ++++++++++++++++ 2 files changed, 21 insertions(+) create mode 100644 clang/test/CodeGen/ms-mm-align.c diff --git a/clang/lib/Headers/xmmintrin.h b/clang/lib/Headers/xmmintrin.h index 18aa8c1..5a8e15a 100644 --- a/clang/lib/Headers/xmmintrin.h +++ b/clang/lib/Headers/xmmintrin.h @@ -924,6 +924,11 @@ _mm_movemask_ps(__m128 __a) 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) diff --git a/clang/test/CodeGen/ms-mm-align.c b/clang/test/CodeGen/ms-mm-align.c new file mode 100644 index 0000000..ae8e980 --- /dev/null +++ b/clang/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 -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 + +void capture_ptr(int* i); +void test_mm_align16(int p) { + _MM_ALIGN16 int i; + capture_ptr(&i); +} + +// CHECK: alloca i32, align 16 -- 2.7.4