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| author | Guillaume Gomez <guillaume1.gomez@gmail.com> | 2025-06-29 12:29:53 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-06-29 12:29:53 +0200 |
| commit | 66ad1f2abf648ba0644cd478dd49cde0f4bef558 (patch) | |
| tree | 58ba7b22c77dbca08839f920313a2e28ef58175a /compiler/rustc_codegen_cranelift/src | |
| parent | 5ca574e85b67cec0a6fc3fddfe398cbe676c9c69 (diff) | |
| parent | 2ffa1dd392c1fe9c23a2f11f7b7a293a744c05ce (diff) | |
| download | rust-66ad1f2abf648ba0644cd478dd49cde0f4bef558.tar.gz rust-66ad1f2abf648ba0644cd478dd49cde0f4bef558.zip | |
Rollup merge of #142078 - sayantn:more-intrinsics, r=workingjubilee
Add SIMD funnel shift and round-to-even intrinsics
This PR adds 3 new SIMD intrinsics
- `simd_funnel_shl` - funnel shift left
- `simd_funnel_shr` - funnel shift right
- `simd_round_ties_even` (vector version of `round_ties_even_fN`)
TODO (future PR): implement `simd_fsh{l,r}` in miri, cg_gcc and cg_clif (it is surprisingly hard to implement without branches, the common tricks that rotate uses doesn't work because we have 2 elements now. e.g, the `-n&31` trick used by cg_gcc to implement rotate doesn't work with this because then `fshl(a, b, 0)` will be `a | b`)
[#t-compiler > More SIMD intrinsics](https://rust-lang.zulipchat.com/#narrow/channel/131828-t-compiler/topic/More.20SIMD.20intrinsics/with/522130286)
`@rustbot` label T-compiler T-libs A-intrinsics F-core_intrinsics
r? `@workingjubilee`
Diffstat (limited to 'compiler/rustc_codegen_cranelift/src')
| -rw-r--r-- | compiler/rustc_codegen_cranelift/src/intrinsics/simd.rs | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/compiler/rustc_codegen_cranelift/src/intrinsics/simd.rs b/compiler/rustc_codegen_cranelift/src/intrinsics/simd.rs index 68ff0b622c8..6281089ee24 100644 --- a/compiler/rustc_codegen_cranelift/src/intrinsics/simd.rs +++ b/compiler/rustc_codegen_cranelift/src/intrinsics/simd.rs @@ -496,7 +496,8 @@ pub(super) fn codegen_simd_intrinsic_call<'tcx>( | sym::simd_flog | sym::simd_flog10 | sym::simd_flog2 - | sym::simd_round => { + | sym::simd_round + | sym::simd_round_ties_even => { intrinsic_args!(fx, args => (a); intrinsic); if !a.layout().ty.is_simd() { @@ -527,6 +528,8 @@ pub(super) fn codegen_simd_intrinsic_call<'tcx>( (sym::simd_flog2, types::F64) => "log2", (sym::simd_round, types::F32) => "roundf", (sym::simd_round, types::F64) => "round", + (sym::simd_round_ties_even, types::F32) => "rintf", + (sym::simd_round_ties_even, types::F64) => "rint", _ => unreachable!("{:?}", intrinsic), }; fx.lib_call( |