From bc5044dbadc5bce5eaf1a1d04860bc812d6e79c8 Mon Sep 17 00:00:00 2001 From: Craig Topper Date: Thu, 12 Oct 2017 18:57:15 +0000 Subject: [PATCH] [X86] Add CLWB intrinsic. clang part Reviewers: RKSimon, zvi, igorb Reviewed By: RKSimon Subscribers: cfe-commits Differential Revision: https://reviews.llvm.org/D38781 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@315607 91177308-0d34-0410-b5e6-96231b3b80d8 --- include/clang/Basic/BuiltinsX86.def | 3 ++ lib/Headers/CMakeLists.txt | 1 + lib/Headers/clwbintrin.h | 52 +++++++++++++++++++++++++++++ lib/Headers/immintrin.h | 4 +++ test/CodeGen/builtin-clwb.c | 9 +++++ 5 files changed, 69 insertions(+) create mode 100644 lib/Headers/clwbintrin.h create mode 100644 test/CodeGen/builtin-clwb.c diff --git a/include/clang/Basic/BuiltinsX86.def b/include/clang/Basic/BuiltinsX86.def index 02e46afb25..d57ea8f119 100644 --- a/include/clang/Basic/BuiltinsX86.def +++ b/include/clang/Basic/BuiltinsX86.def @@ -641,6 +641,9 @@ TARGET_BUILTIN(__builtin_ia32_xsaves, "vv*ULLi", "", "xsaves") //CLFLUSHOPT TARGET_BUILTIN(__builtin_ia32_clflushopt, "vvC*", "", "clflushopt") +//CLWB +TARGET_BUILTIN(__builtin_ia32_clwb, "vvC*", "", "clwb") + // ADX TARGET_BUILTIN(__builtin_ia32_addcarryx_u32, "UcUcUiUiUi*", "", "adx") TARGET_BUILTIN(__builtin_ia32_addcarry_u32, "UcUcUiUiUi*", "", "") diff --git a/lib/Headers/CMakeLists.txt b/lib/Headers/CMakeLists.txt index 15ab964bbb..7d5e9331a8 100644 --- a/lib/Headers/CMakeLists.txt +++ b/lib/Headers/CMakeLists.txt @@ -33,6 +33,7 @@ set(files clzerointrin.h cpuid.h clflushoptintrin.h + clwbintrin.h emmintrin.h f16cintrin.h float.h diff --git a/lib/Headers/clwbintrin.h b/lib/Headers/clwbintrin.h new file mode 100644 index 0000000000..2594a6c387 --- /dev/null +++ b/lib/Headers/clwbintrin.h @@ -0,0 +1,52 @@ +/*===---- clwbintrin.h - CLWB intrinsic ------------------------------------=== + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + *===-----------------------------------------------------------------------=== + */ + +#ifndef __IMMINTRIN_H +#error "Never use directly; include instead." +#endif + +#ifndef __CLWBINTRIN_H +#define __CLWBINTRIN_H + +/* Define the default attributes for the functions in this file. */ +#define __DEFAULT_FN_ATTRS __attribute__((__always_inline__, __nodebug__, __target__("clwb"))) + +/// \brief Writes back to memory the cache line (if modified) that contains the +/// linear address specified in \a __p from any level of the cache hierarchy in +/// the cache coherence domain +/// +/// \headerfile +/// +/// This intrinsic corresponds to the CLWB instruction. +/// +/// \param __p +/// A pointer to the memory location used to identify the cache line to be +/// written back. +static __inline__ void __DEFAULT_FN_ATTRS +_mm_clwb(void const *__p) { + __builtin_ia32_clwb(__p); +} + +#undef __DEFAULT_FN_ATTRS + +#endif diff --git a/lib/Headers/immintrin.h b/lib/Headers/immintrin.h index c5f25bfcb5..d86e0efb82 100644 --- a/lib/Headers/immintrin.h +++ b/lib/Headers/immintrin.h @@ -58,6 +58,10 @@ #include #endif +#if !defined(_MSC_VER) || __has_feature(modules) || defined(__CLWB__) +#include +#endif + #if !defined(_MSC_VER) || __has_feature(modules) || defined(__AVX__) #include #endif diff --git a/test/CodeGen/builtin-clwb.c b/test/CodeGen/builtin-clwb.c new file mode 100644 index 0000000000..96d00a6a7c --- /dev/null +++ b/test/CodeGen/builtin-clwb.c @@ -0,0 +1,9 @@ +// RUN: %clang_cc1 %s -ffreestanding -triple=x86_64-apple-darwin -target-feature +clwb -emit-llvm -o - -Wall -Werror | FileCheck %s + +#include + +void test_mm_clwb(const void *__m) { + //CHECK-LABEL: @test_mm_clwb + //CHECK: @llvm.x86.clwb + _mm_clwb(__m); +} -- 2.40.0