| // compile-flags: -C no-prepopulate-passes |
| |
| #![crate_type = "lib"] |
| |
| pub struct Bytes { |
| a: u8, |
| b: u8, |
| c: u8, |
| d: u8, |
| } |
| |
| // CHECK-LABEL: @borrow |
| #[no_mangle] |
| pub fn borrow(x: &i32) -> &i32 { |
| // CHECK: load {{(i32\*, )?}}i32** %x{{.*}}, !nonnull |
| &x; // keep variable in an alloca |
| x |
| } |
| |
| // CHECK-LABEL: @_box |
| #[no_mangle] |
| pub fn _box(x: Box<i32>) -> i32 { |
| // CHECK: load {{(i32\*, )?}}i32** %x{{.*}}, !nonnull |
| *x |
| } |
| |
| // CHECK-LABEL: small_array_alignment |
| // The array is loaded as i32, but its alignment is lower, go with 1 byte to avoid target |
| // dependent alignment |
| #[no_mangle] |
| pub fn small_array_alignment(x: [i8; 4]) -> [i8; 4] { |
| // CHECK: [[VAR:%[0-9]+]] = load {{(i32, )?}}i32* %{{.*}}, align 1 |
| // CHECK: ret i32 [[VAR]] |
| x |
| } |
| |
| // CHECK-LABEL: small_struct_alignment |
| // The struct is loaded as i32, but its alignment is lower, go with 1 byte to avoid target |
| // dependent alignment |
| #[no_mangle] |
| pub fn small_struct_alignment(x: Bytes) -> Bytes { |
| // CHECK: [[VAR:%[0-9]+]] = load {{(i32, )?}}i32* %{{.*}}, align 1 |
| // CHECK: ret i32 [[VAR]] |
| x |
| } |