diff options
author | Craig Topper <craig.topper@intel.com> | 2017-10-12 18:57:15 +0000 |
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committer | Craig Topper <craig.topper@intel.com> | 2017-10-12 18:57:15 +0000 |
commit | bc5044dbadc5bce5eaf1a1d04860bc812d6e79c8 (patch) | |
tree | 1f5c45de44b5a85907866b018e1272db76a41fca /lib/Headers | |
parent | 780c8ad4b33c3e9703a02584c1afe7e81f38144b (diff) |
[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
Diffstat (limited to 'lib/Headers')
-rw-r--r-- | lib/Headers/CMakeLists.txt | 1 | ||||
-rw-r--r-- | lib/Headers/clwbintrin.h | 52 | ||||
-rw-r--r-- | lib/Headers/immintrin.h | 4 |
3 files changed, 57 insertions, 0 deletions
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 <clwbintrin.h> directly; include <immintrin.h> 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 <immintrin.h> +/// +/// This intrinsic corresponds to the <c> CLWB </c> 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 <clflushoptintrin.h> #endif +#if !defined(_MSC_VER) || __has_feature(modules) || defined(__CLWB__) +#include <clwbintrin.h> +#endif + #if !defined(_MSC_VER) || __has_feature(modules) || defined(__AVX__) #include <avxintrin.h> #endif |