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Implement _mm256_zeroupper vendor intrinsic

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bjorn3 2023-11-24 15:31:14 +00:00
parent 65da671694
commit c8729e9216
1 changed files with 5 additions and 0 deletions
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5
src/intrinsics/llvm_x86.rs
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@ -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);