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32 lines
930 B
Rust
32 lines
930 B
Rust
//@compile-flags: -Copt-level=3
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#![crate_type = "lib"]
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#![feature(repr_simd, core_intrinsics)]
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#[allow(non_camel_case_types)]
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#[derive(Clone, Copy)]
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#[repr(simd)]
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struct i32x4([i32; 4]);
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#[inline(always)]
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fn to_array4(a: i32x4) -> [i32; 4] {
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a.0
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}
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// CHECK-LABEL: simd_add_self_then_return_array(
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// CHECK-SAME: ptr{{.+}}sret{{.+}}%[[RET:.+]],
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// CHECK-SAME: ptr{{.+}}%a)
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#[no_mangle]
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pub fn simd_add_self_then_return_array(a: &i32x4) -> [i32; 4] {
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// It would be nice to just ban `.0` into simd types,
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// but until we do this has to keep working.
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// See also <https://github.com/rust-lang/rust/issues/105439>
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// CHECK: %[[T1:.+]] = load <4 x i32>, ptr %a
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// CHECK: %[[T2:.+]] = shl <4 x i32> %[[T1]], {{splat \(i32 1\)|<i32 1, i32 1, i32 1, i32 1>}}
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// CHECK: store <4 x i32> %[[T2]], ptr %[[RET]]
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let a = *a;
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let b = unsafe { core::intrinsics::simd::simd_add(a, a) };
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to_array4(b)
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}
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