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Rollup merge of #133395 - calebzulawski:simd_relaxed_fma, r=workingjubilee

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Add simd_relaxed_fma intrinsic

Adds compiler support for https://github.com/rust-lang/portable-simd/issues/387#issuecomment-2337169786

r? `@workingjubilee`

cc `@RalfJung` is this kind of nondeterminism a problem for miri/opsem?
This commit is contained in:
Matthias Krüger 2024-12-03 07:48:33 +01:00 • committed by GitHub
commit c5acac93fd
1 changed files with 2 additions and 1 deletions
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3
src/intrinsics/simd.rs
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@ -415,7 +415,8 @@ pub(super) fn codegen_simd_intrinsic_call<'tcx>(
});
}
sym::simd_fma => {
// FIXME: simd_relaxed_fma doesn't relax to non-fused multiply-add
sym::simd_fma | sym::simd_relaxed_fma => {
intrinsic_args!(fx, args => (a, b, c); intrinsic);
if !a.layout().ty.is_simd() {