rust/tests/mir-opt/const_prop/mutable_variable.rs
2024-08-18 15:52:23 -07:00

15 lines
335 B
Rust

//@ test-mir-pass: GVN
// EMIT_MIR mutable_variable.main.GVN.diff
fn main() {
// CHECK-LABEL: fn main(
// CHECK: debug x => [[x:_.*]];
// CHECK: debug y => [[y:_.*]];
// CHECK: [[x]] = const 42_i32;
// CHECK: [[x]] = const 99_i32;
// CHECK: [[y]] = copy [[x]];
let mut x = 42;
x = 99;
let y = x;
}