4c493db0d9
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
33 lines
537 B
Rust
33 lines
537 B
Rust
// EMIT_MIR_FOR_EACH_PANIC_STRATEGY
|
|
//! Tests that assignment in both branches of an `if` are eliminated.
|
|
//@ test-mir-pass: DestinationPropagation
|
|
fn val() -> i32 {
|
|
1
|
|
}
|
|
|
|
fn cond() -> bool {
|
|
true
|
|
}
|
|
|
|
// EMIT_MIR branch.foo.DestinationPropagation.diff
|
|
fn foo() -> i32 {
|
|
// CHECK-LABEL: fn foo(
|
|
// CHECK: debug y => [[y:_.*]];
|
|
// CHECK: [[y]] = val()
|
|
// CHECK-NOT: [[y]] = {{_.*}};
|
|
let x = val();
|
|
|
|
let y = if cond() {
|
|
x
|
|
} else {
|
|
val();
|
|
x
|
|
};
|
|
|
|
y
|
|
}
|
|
|
|
fn main() {
|
|
foo();
|
|
}
|