| // 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; |
| } |
