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48 lines
1.2 KiB
Rust
48 lines
1.2 KiB
Rust
// compile-flags: -C no-prepopulate-passes
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#![crate_type = "lib"]
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#![feature(repr_simd, platform_intrinsics, min_const_generics)]
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#![allow(non_camel_case_types)]
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#[repr(simd)]
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#[derive(Copy, Clone)]
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pub struct M(pub f32, pub f32, pub f32, pub f32);
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#[repr(simd)]
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#[derive(Copy, Clone)]
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pub struct S<const N: usize>([f32; N]);
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extern "platform-intrinsic" {
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fn simd_extract<T, U>(x: T, idx: u32) -> U;
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fn simd_insert<T, U>(x: T, idx: u32, b: U) -> T;
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}
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// CHECK-LABEL: @extract_m
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#[no_mangle]
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pub unsafe fn extract_m(v: M, i: u32) -> f32 {
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// CHECK: extractelement <4 x float> %{{v|1|2}}, i32 %i
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simd_extract(v, i)
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}
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// CHECK-LABEL: @extract_s
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#[no_mangle]
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pub unsafe fn extract_s(v: S<4>, i: u32) -> f32 {
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// CHECK: extractelement <4 x float> %{{v|1|2}}, i32 %i
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simd_extract(v, i)
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}
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// CHECK-LABEL: @insert_m
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#[no_mangle]
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pub unsafe fn insert_m(v: M, i: u32, j: f32) -> M {
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// CHECK: insertelement <4 x float> %{{v|0|1}}, float %j, i32 %i
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simd_insert(v, i, j)
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}
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// CHECK-LABEL: @insert_s
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#[no_mangle]
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pub unsafe fn insert_s(v: S<4>, i: u32, j: f32) -> S<4> {
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// CHECK: insertelement <4 x float> %{{v|0|1}}, float %j, i32 %i
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simd_insert(v, i, j)
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}
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