Author: Shengchen Kan Date: 2020-03-12T10:03:41+08:00 New Revision: ab69cd0779c529519eb7d26e0fa1b8dfb505f838
URL: https://github.com/llvm/llvm-project/commit/ab69cd0779c529519eb7d26e0fa1b8dfb505f838 DIFF: https://github.com/llvm/llvm-project/commit/ab69cd0779c529519eb7d26e0fa1b8dfb505f838.diff LOG: [X86] Support intrinsic _mm_cldemote Reviewers: LuoYuanke, craig.topper, RKSimon, pengfei Reviewed By: craig.topper Subscribers: cfe-commits, llvm-commits Tags: #clang Differential Revision: https://reviews.llvm.org/D75896 Added: Modified: clang/lib/Headers/cldemoteintrin.h clang/test/CodeGen/cldemote.c Removed: ################################################################################ diff --git a/clang/lib/Headers/cldemoteintrin.h b/clang/lib/Headers/cldemoteintrin.h index 2413e7dea7a1..cfb951c1b4a9 100644 --- a/clang/lib/Headers/cldemoteintrin.h +++ b/clang/lib/Headers/cldemoteintrin.h @@ -18,11 +18,19 @@ #define __DEFAULT_FN_ATTRS \ __attribute__((__always_inline__, __nodebug__, __target__("cldemote"))) +/// Hint to hardware that the cache line that contains \p __P should be demoted +/// from the cache closest to the processor core to a level more distant from +/// the processor core. +/// +/// \headerfile <x86intrin.h> +/// +/// This intrinsic corresponds to the <c> CLDEMOTE </c> instruction. static __inline__ void __DEFAULT_FN_ATTRS _cldemote(const void * __P) { __builtin_ia32_cldemote(__P); } +#define _mm_cldemote(p) _cldemote(p) #undef __DEFAULT_FN_ATTRS #endif diff --git a/clang/test/CodeGen/cldemote.c b/clang/test/CodeGen/cldemote.c index 8c7bdf539333..f5f7ad9f27ea 100644 --- a/clang/test/CodeGen/cldemote.c +++ b/clang/test/CodeGen/cldemote.c @@ -7,4 +7,6 @@ void test_cldemote(const void *p) { //CHECK-LABEL: @test_cldemote //CHECK: call void @llvm.x86.cldemote(i8* %{{.*}}) _cldemote(p); + //CHECK: call void @llvm.x86.cldemote(i8* %{{.*}}) + _mm_cldemote(p); } _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits