//@ compile-flags: -C no-prepopulate-passes // #![crate_type = "lib"] pub struct Bytes { a: u8, b: u8, c: u8, d: u8, } // CHECK-LABEL: small_array_alignment // The array is stored as i32, but its alignment is lower, go with 1 byte to avoid target // dependent alignment #[no_mangle] pub fn small_array_alignment(x: &mut [i8; 4], y: [i8; 4]) { // CHECK: [[TMP:%.+]] = alloca i32 // CHECK: %y = alloca [4 x i8] // CHECK: store i32 %0, ptr [[TMP]] // CHECK: call void @llvm.memcpy.{{.*}}(ptr align 1 {{.+}}, ptr align 4 {{.+}}, i{{[0-9]+}} 4, i1 false) *x = y; } // CHECK-LABEL: small_struct_alignment // The struct is stored as i32, but its alignment is lower, go with 1 byte to avoid target // dependent alignment #[no_mangle] pub fn small_struct_alignment(x: &mut Bytes, y: Bytes) { // CHECK: [[TMP:%.+]] = alloca i32 // CHECK: %y = alloca %Bytes // CHECK: store i32 %0, ptr [[TMP]] // CHECK: call void @llvm.memcpy.{{.*}}(ptr align 1 {{.+}}, ptr align 4 {{.+}}, i{{[0-9]+}} 4, i1 false) *x = y; }