8000 Support repr(simd) on ADTs containing a single array field by KodrAus · Pull Request #78863 · rust-lang/rust · GitHub
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Support repr(simd) on ADTs containing a single array field #78863

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Merged
merged 10 commits into from
Nov 29, 2020
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generalize codegen to non 64bit platforms
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KodrAus committed Nov 23, 2020
commit b5b35a9c8e3709e923c40333a8fbefc6c53ad2b7
Original file line number Diff line number Diff line change
Expand Up @@ -22,23 +22,23 @@ pub struct U(f32, f32, f32, f32);
// CHECK-LABEL: @build_array_s
#[no_mangle]
pub fn build_array_s(x: [f32; 4]) -> S<4> {
// CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* {{.*}} %{{[0-9]+}}, i8* {{.*}} %3, i64 16, i1 false)
// CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* {{.*}} %{{[0-9]+}}, i8* {{.*}} %6, i64 16, i1 false)
// CHECK: call void @llvm.memcpy.p0i8.p0i8.i{{[0-9]+}}(i8* {{.*}} %{{[0-9]+}}, i8* {{.*}} %3, i{{[0-9]+}} 16, i1 false)
// CHECK: call void @llvm.memcpy.p0i8.p0i8.i{{[0-9]+}}(i8* {{.*}} %{{[0-9]+}}, i8* {{.*}} %6, i{{[0-9]+}} 16, i1 false)
S::<4>(x)
}

// CHECK-LABEL: @build_array_t
#[no_mangle]
pub fn build_array_t(x: [f32; 4]) -> T {
// CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* {{.*}} %{{[0-9]+}}, i8* {{.*}} %3, i64 16, i1 false)
// CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* {{.*}} %{{[0-9]+}}, i8* {{.*}} %6, i64 16, i1 false)
// CHECK: call void @llvm.memcpy.p0i8.p0i8.i{{[0-9]+}}(i8* {{.*}} %{{[0-9]+}}, i8* {{.*}} %3, i{{[0-9]+}} 16, i1 false)
// CHECK: call void @llvm.memcpy.p0i8.p0i8.i{{[0-9]+}}(i8* {{.*}} %{{[0-9]+}}, i8* {{.*}} %6, i{{[0-9]+}} 16, i1 false)
T(x)
}

// CHECK-LABEL: @build_array_u
#[no_mangle]
pub fn build_array_u(x: [f32; 4]) -> U {
// CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* {{.*}} %{{[0-9]+}}, i8* {{.*}} %3, i64 16, i1 false)
// CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* {{.*}} %{{[0-9]+}}, i8* {{.*}} %6, i64 16, i1 false)
// CHECK: call void @llvm.memcpy.p0i8.p0i8.i{{[0-9]+}}(i8* {{.*}} %{{[0-9]+}}, i8* {{.*}} %3, i{{[0-9]+}} 16, i1 false)
// CHECK: call void @llvm.memcpy.p0i8.p0i8.i{{[0-9]+}}(i8* {{.*}} %{{[0-9]+}}, i8* {{.*}} %6, i{{[0-9]+}} 16, i1 false)
unsafe { std::mem::transmute(x) }
}
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