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Mark simd_shuffle intrinsics as rustc_args_required_const #278

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Merged
merged 2 commits into from
Sep 25, 2020
Merged

Mark simd_shuffle intrinsics as rustc_args_required_const #278

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f760867
Mark `simd_shuffle` intrinsics as `rustc_args_required_const`
ecstatic-morse Feb 20, 2020
9b7f293
Add feature `rustc_attrs`
ecstatic-morse Feb 23, 2020
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6 changes: 6 additions & 0 deletions src/codegen/llvm.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -10,31 +10,37 @@ extern "platform-intrinsic" {
// FIXME: Passing this intrinsics an `idx` array with an index that is
// out-of-bounds will produce a monomorphization-time error.
// https://github.com/rust-lang-nursery/packed_simd/issues/21
#[rustc_args_required_const(2)]
pub fn simd_shuffle2<T, U>(x: T, y: T, idx: [u32; 2]) -> U
where
T: Simd,
<T as Simd>::Element: Shuffle<[u32; 2], Output = U>;

#[rustc_args_required_const(2)]
pub fn simd_shuffle4<T, U>(x: T, y: T, idx: [u32; 4]) -> U
where
T: Simd,
<T as Simd>::Element: Shuffle<[u32; 4], Output = U>;

#[rustc_args_required_const(2)]
pub fn simd_shuffle8<T, U>(x: T, y: T, idx: [u32; 8]) -> U
where
T: Simd,
<T as Simd>::Element: Shuffle<[u32; 8], Output = U>;

#[rustc_args_required_const(2)]
pub fn simd_shuffle16<T, U>(x: T, y: T, idx: [u32; 16]) -> U
where
T: Simd,
<T as Simd>::Element: Shuffle<[u32; 16], Output = U>;

#[rustc_args_required_const(2)]
pub fn simd_shuffle32<T, U>(x: T, y: T, idx: [u32; 32]) -> U
where
T: Simd,
<T as Simd>::Element: Shuffle<[u32; 32], Output = U>;

#[rustc_args_required_const(2)]
pub fn simd_shuffle64<T, U>(x: T, y: T, idx: [u32; 64]) -> U
where
T: Simd,
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1 change: 1 addition & 0 deletions src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -201,6 +201,7 @@

#![feature(
repr_simd,
rustc_attrs,
const_fn,
platform_intrinsics,
stdsimd,
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