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rust/tests/codegen/simd-intrinsic/simd-intrinsic-transmute-array.rs

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Remove redundant `ignore-tidy-linelength` annotations This is step 2 towards fixing #77548. In the codegen and codegen-units test suites, the `//` comment markers were kept in order not to affect any source locations. This is because these tests cannot be automatically `--bless`ed.
2021-04-03 06:05:11 -05:00
//
Support repr(simd) on ADTs containing a single array field This PR allows using `#[repr(simd)]` on ADTs containing a single array field: ```rust #[repr(simd)] struct S0([f32; 4]); #[repr(simd)] struct S1<const N: usize>([f32; N]); #[repr(simd)] struct S2<T, const N: usize>([T; N]); ``` This should allow experimenting with portable packed SIMD abstractions on nightly that make use of const generics.
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// compile-flags: -C no-prepopulate-passes
#![crate_type = "lib"]
remove const_generics from codegen tests
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#![allow(non_camel_case_types)]
#![feature(repr_simd, platform_intrinsics, min_const_generics)]
Support repr(simd) on ADTs containing a single array field This PR allows using `#[repr(simd)]` on ADTs containing a single array field: ```rust #[repr(simd)] struct S0([f32; 4]); #[repr(simd)] struct S1<const N: usize>([f32; N]); #[repr(simd)] struct S2<T, const N: usize>([T; N]); ``` This should allow experimenting with portable packed SIMD abstractions on nightly that make use of const generics.
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#[repr(simd)]
#[derive(Copy, Clone)]
pub struct S<const N: usize>([f32; N]);
#[repr(simd)]
#[derive(Copy, Clone)]
pub struct T([f32; 4]);
#[repr(simd)]
#[derive(Copy, Clone)]
pub struct U(f32, f32, f32, f32);
// CHECK-LABEL: @build_array_s
#[no_mangle]
pub fn build_array_s(x: [f32; 4]) -> S<4> {
Update some codegen tests for opaque pointers
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// CHECK: call void @llvm.memcpy.{{.+}}({{.*}}, i{{[0-9]+}} 16, i1 false)
// CHECK: call void @llvm.memcpy.{{.+}}({{.*}}, i{{[0-9]+}} 16, i1 false)
Support repr(simd) on ADTs containing a single array field This PR allows using `#[repr(simd)]` on ADTs containing a single array field: ```rust #[repr(simd)] struct S0([f32; 4]); #[repr(simd)] struct S1<const N: usize>([f32; N]); #[repr(simd)] struct S2<T, const N: usize>([T; N]); ``` This should allow experimenting with portable packed SIMD abstractions on nightly that make use of const generics.
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S::<4>(x)
}
// CHECK-LABEL: @build_array_t
#[no_mangle]
pub fn build_array_t(x: [f32; 4]) -> T {
Update some codegen tests for opaque pointers
2022-02-21 04:21:23 -06:00
// CHECK: call void @llvm.memcpy.{{.+}}({{.*}}, i{{[0-9]+}} 16, i1 false)
// CHECK: call void @llvm.memcpy.{{.+}}({{.*}}, i{{[0-9]+}} 16, i1 false)
Support repr(simd) on ADTs containing a single array field This PR allows using `#[repr(simd)]` on ADTs containing a single array field: ```rust #[repr(simd)] struct S0([f32; 4]); #[repr(simd)] struct S1<const N: usize>([f32; N]); #[repr(simd)] struct S2<T, const N: usize>([T; N]); ``` This should allow experimenting with portable packed SIMD abstractions on nightly that make use of const generics.
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T(x)
}
// CHECK-LABEL: @build_array_u
#[no_mangle]
pub fn build_array_u(x: [f32; 4]) -> U {
Update some codegen tests for opaque pointers
2022-02-21 04:21:23 -06:00
// CHECK: call void @llvm.memcpy.{{.+}}({{.*}}, i{{[0-9]+}} 16, i1 false)
// CHECK: call void @llvm.memcpy.{{.+}}({{.*}}, i{{[0-9]+}} 16, i1 false)
Support repr(simd) on ADTs containing a single array field This PR allows using `#[repr(simd)]` on ADTs containing a single array field: ```rust #[repr(simd)] struct S0([f32; 4]); #[repr(simd)] struct S1<const N: usize>([f32; N]); #[repr(simd)] struct S2<T, const N: usize>([T; N]); ``` This should allow experimenting with portable packed SIMD abstractions on nightly that make use of const generics.
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unsafe { std::mem::transmute(x) }
}
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