1 // compile-flags: -O -C no-prepopulate-passes
2 // min-llvm-version: 15.0 (for opaque pointers)
3
4 #![crate_type = "lib"]
5
6 // CHECK-LABEL: @array_load
7 #[no_mangle]
array_load(a: &[u8; 4]) -> [u8; 4]8 pub fn array_load(a: &[u8; 4]) -> [u8; 4] {
9 // CHECK: %0 = alloca [4 x i8], align 1
10 // CHECK: %[[TEMP1:.+]] = load <4 x i8>, ptr %a, align 1
11 // CHECK: store <4 x i8> %[[TEMP1]], ptr %0, align 1
12 // CHECK: %[[TEMP2:.+]] = load i32, ptr %0, align 1
13 // CHECK: ret i32 %[[TEMP2]]
14 *a
15 }
16
17 // CHECK-LABEL: @array_store
18 #[no_mangle]
array_store(a: [u8; 4], p: &mut [u8; 4])19 pub fn array_store(a: [u8; 4], p: &mut [u8; 4]) {
20 // CHECK: %a = alloca [4 x i8]
21 // CHECK: %[[TEMP:.+]] = load <4 x i8>, ptr %a, align 1
22 // CHECK-NEXT: store <4 x i8> %[[TEMP]], ptr %p, align 1
23 *p = a;
24 }
25
26 // CHECK-LABEL: @array_copy
27 #[no_mangle]
array_copy(a: &[u8; 4], p: &mut [u8; 4])28 pub fn array_copy(a: &[u8; 4], p: &mut [u8; 4]) {
29 // CHECK: %[[LOCAL:.+]] = alloca [4 x i8], align 1
30 // CHECK: %[[TEMP1:.+]] = load <4 x i8>, ptr %a, align 1
31 // CHECK: store <4 x i8> %[[TEMP1]], ptr %[[LOCAL]], align 1
32 // CHECK: %[[TEMP2:.+]] = load <4 x i8>, ptr %[[LOCAL]], align 1
33 // CHECK: store <4 x i8> %[[TEMP2]], ptr %p, align 1
34 *p = *a;
35 }
36