mirror of https://github.com/rust-lang/rust.git
57 lines
1.9 KiB
Rust
57 lines
1.9 KiB
Rust
// compile-flags: -O -C no-prepopulate-passes
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#![crate_type = "lib"]
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// CHECK-LABEL: @array_load
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#[no_mangle]
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pub fn array_load(a: &[u8; 4]) -> [u8; 4] {
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// CHECK: %_0 = alloca [4 x i8], align 1
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// CHECK: %[[TEMP1:.+]] = load <4 x i8>, ptr %a, align 1
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// CHECK: store <4 x i8> %[[TEMP1]], ptr %_0, align 1
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// CHECK: %[[TEMP2:.+]] = load i32, ptr %_0, align 1
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// CHECK: ret i32 %[[TEMP2]]
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*a
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}
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// CHECK-LABEL: @array_store
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#[no_mangle]
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pub fn array_store(a: [u8; 4], p: &mut [u8; 4]) {
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// CHECK: %a = alloca [4 x i8]
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// CHECK: %[[TEMP:.+]] = load <4 x i8>, ptr %a, align 1
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// CHECK-NEXT: store <4 x i8> %[[TEMP]], ptr %p, align 1
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*p = a;
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}
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// CHECK-LABEL: @array_copy
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#[no_mangle]
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pub fn array_copy(a: &[u8; 4], p: &mut [u8; 4]) {
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// CHECK: %[[LOCAL:.+]] = alloca [4 x i8], align 1
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// CHECK: %[[TEMP1:.+]] = load <4 x i8>, ptr %a, align 1
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// CHECK: store <4 x i8> %[[TEMP1]], ptr %[[LOCAL]], align 1
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// CHECK: %[[TEMP2:.+]] = load <4 x i8>, ptr %[[LOCAL]], align 1
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// CHECK: store <4 x i8> %[[TEMP2]], ptr %p, align 1
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*p = *a;
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}
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// CHECK-LABEL: @array_copy_1_element
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#[no_mangle]
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pub fn array_copy_1_element(a: &[u8; 1], p: &mut [u8; 1]) {
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// CHECK: %[[LOCAL:.+]] = alloca [1 x i8], align 1
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// CHECK: %[[TEMP1:.+]] = load i8, ptr %a, align 1
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// CHECK: store i8 %[[TEMP1]], ptr %[[LOCAL]], align 1
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// CHECK: %[[TEMP2:.+]] = load i8, ptr %[[LOCAL]], align 1
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// CHECK: store i8 %[[TEMP2]], ptr %p, align 1
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*p = *a;
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}
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// CHECK-LABEL: @array_copy_2_elements
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#[no_mangle]
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pub fn array_copy_2_elements(a: &[u8; 2], p: &mut [u8; 2]) {
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// CHECK: %[[LOCAL:.+]] = alloca [2 x i8], align 1
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// CHECK: %[[TEMP1:.+]] = load <2 x i8>, ptr %a, align 1
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// CHECK: store <2 x i8> %[[TEMP1]], ptr %[[LOCAL]], align 1
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// CHECK: %[[TEMP2:.+]] = load <2 x i8>, ptr %[[LOCAL]], align 1
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// CHECK: store <2 x i8> %[[TEMP2]], ptr %p, align 1
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*p = *a;
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}
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