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| author | bjorn3 <17426603+bjorn3@users.noreply.github.com> | 2023-11-24 15:31:14 +0000 |
|---|---|---|
| committer | bjorn3 <17426603+bjorn3@users.noreply.github.com> | 2023-11-24 20:45:22 +0100 |
| commit | c8729e9216bda2b51d8781d95cae0b907e71c6b8 (patch) | |
| tree | a67ed51897d359c105f85fa3735b74620788c851 | |
| parent | 65da67169427a3b09726b64389d827aa7b2bfbe8 (diff) | |
| download | rust-c8729e9216bda2b51d8781d95cae0b907e71c6b8.tar.gz rust-c8729e9216bda2b51d8781d95cae0b907e71c6b8.zip | |
Implement _mm256_zeroupper vendor intrinsic
| -rw-r--r-- | src/intrinsics/llvm_x86.rs | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/intrinsics/llvm_x86.rs b/src/intrinsics/llvm_x86.rs index 142ca1cf5dd..f85f9b8917e 100644 --- a/src/intrinsics/llvm_x86.rs +++ b/src/intrinsics/llvm_x86.rs @@ -22,6 +22,11 @@ pub(crate) fn codegen_x86_llvm_intrinsic_call<'tcx>( // Spin loop hint } + "llvm.x86.avx.vzeroupper" => { + // https://www.intel.com/content/www/us/en/docs/intrinsics-guide/index.html#text=_mm256_zeroupper&ig_expand=7218 + // Do nothing. It is a perf hint anyway. + } + // Used by is_x86_feature_detected!(); "llvm.x86.xgetbv" => { intrinsic_args!(fx, args => (xcr_no); intrinsic); |