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fix CTFE/Miri simd_insert/extract on array-style repr(simd) types

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This commit is contained in:
Ralf Jung 2021-11-17 22:29:21 -05:00
parent 41301c3b23
commit 2f1a1f530b
5 changed files with 67 additions and 38 deletions
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13
src/test/ui/consts/const-eval/simd/insert_extract.rs
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@ -7,7 +7,8 @@
#[repr(simd)] struct i8x1(i8);
#[repr(simd)] struct u16x2(u16, u16);
#[repr(simd)] struct f32x4(f32, f32, f32, f32);
// Make one of them an array type to ensure those also work.
#[repr(simd)] struct f32x4([f32; 4]);
extern "platform-intrinsic" {
#[rustc_const_stable(feature = "foo", since = "1.3.37")]
@ -38,12 +39,12 @@ fn main() {
assert_eq!(Y1, 42);
}
{
const U: f32x4 = f32x4(13., 14., 15., 16.);
const U: f32x4 = f32x4([13., 14., 15., 16.]);
const V: f32x4 = unsafe { simd_insert(U, 1_u32, 42_f32) };
const X0: f32 = V.0;
const X1: f32 = V.1;
const X2: f32 = V.2;
const X3: f32 = V.3;
const X0: f32 = V.0[0];
const X1: f32 = V.0[1];
const X2: f32 = V.0[2];
const X3: f32 = V.0[3];
const Y0: f32 = unsafe { simd_extract(V, 0) };
const Y1: f32 = unsafe { simd_extract(V, 1) };
const Y2: f32 = unsafe { simd_extract(V, 2) };