rust/tests/mir-opt/dataflow-const-prop/repr_transparent.rs

21 lines
476 B
Rust

//@ test-mir-pass: DataflowConstProp
// The struct has scalar ABI, but is not a scalar type.
// Make sure that we handle this correctly.
#[repr(transparent)]
struct I32(i32);
// EMIT_MIR repr_transparent.main.DataflowConstProp.diff
// CHECK-LABEL: fn main(
fn main() {
// CHECK: debug x => [[x:_.*]];
// CHECK: debug y => [[y:_.*]];
// CHECK: [[x]] = const I32(0_i32);
let x = I32(0);
// CHECK: [[y]] = const I32(0_i32);
let y = I32(x.0 + x.0);
}