rust/tests/mir-opt/const_prop/mutable_variable_aggregate.rs

15 lines
363 B
Rust

//@ unit-test: GVN
// EMIT_MIR mutable_variable_aggregate.main.GVN.diff
fn main() {
// CHECK-LABEL: fn main(
// CHECK: debug x => [[x:_.*]];
// CHECK: debug y => [[y:_.*]];
// CHECK: [[x]] = const (42_i32, 43_i32);
// CHECK: ([[x]].1: i32) = const 99_i32;
// CHECK: [[y]] = [[x]];
let mut x = (42, 43);
x.1 = 99;
let y = x;
}