mirror of
https://github.com/rust-lang/rust.git
synced 2025-10-31 04:57:19 +00:00
34 lines
895 B
Rust
34 lines
895 B
Rust
// compile-flags: -O
|
|
|
|
#![crate_type = "lib"]
|
|
|
|
// CHECK-LABEL: @array_copy_1_element
|
|
#[no_mangle]
|
|
pub fn array_copy_1_element(a: &[u8; 1], p: &mut [u8; 1]) {
|
|
// CHECK-NOT: alloca
|
|
// CHECK: %[[TEMP:.+]] = load i8, ptr %a, align 1
|
|
// CHECK: store i8 %[[TEMP]], ptr %p, align 1
|
|
// CHECK: ret
|
|
*p = *a;
|
|
}
|
|
|
|
// CHECK-LABEL: @array_copy_2_elements
|
|
#[no_mangle]
|
|
pub fn array_copy_2_elements(a: &[u8; 2], p: &mut [u8; 2]) {
|
|
// CHECK-NOT: alloca
|
|
// CHECK: %[[TEMP:.+]] = load <2 x i8>, ptr %a, align 1
|
|
// CHECK: store <2 x i8> %[[TEMP]], ptr %p, align 1
|
|
// CHECK: ret
|
|
*p = *a;
|
|
}
|
|
|
|
// CHECK-LABEL: @array_copy_4_elements
|
|
#[no_mangle]
|
|
pub fn array_copy_4_elements(a: &[u8; 4], p: &mut [u8; 4]) {
|
|
// CHECK-NOT: alloca
|
|
// CHECK: %[[TEMP:.+]] = load <4 x i8>, ptr %a, align 1
|
|
// CHECK: store <4 x i8> %[[TEMP]], ptr %p, align 1
|
|
// CHECK: ret
|
|
*p = *a;
|
|
}
|