rust/tests/mir-opt/dest-prop/dead_stores_79191.rs
Jubilee 4c493db0d9
Rollup merge of #122300 - CastilloDel:master, r=cjgillot
Add FileCheck annotations to mir-opt/dest-prop tests

Part of https://github.com/rust-lang/rust/issues/116971, adds FileCheck annotations to MIR-opt tests in tests/mir-opt/dest-prop.

I would like some feedback. Also, I don't know how to approach `union.rs`.  I couldn't figure out what it is testing.

r? cjgillot
2024-07-13 20:19:45 -07:00

26 lines
515 B
Rust

// EMIT_MIR_FOR_EACH_PANIC_STRATEGY
//@ test-mir-pass: DestinationPropagation
fn id<T>(x: T) -> T {
x
}
// EMIT_MIR dead_stores_79191.f.DestinationPropagation.after.mir
fn f(mut a: usize) -> usize {
// CHECK-LABEL: fn f(
// CHECK: debug a => [[a:_.*]];
// CHECK: debug b => [[b:_.*]];
// CHECK: [[b]] = [[a]];
// CHECK: [[a]] = const 5_usize;
// CHECK: [[a]] = move [[b]];
// CHECK: id::<usize>(move [[a]])
let b = a;
a = 5;
a = b;
id(a)
}
fn main() {
f(0);
}