rust/tests/mir-opt/simplify_arm_identity.rs
2023-10-19 15:51:52 +00:00

27 lines
552 B
Rust

// skip-filecheck
// Checks that `SimplifyArmIdentity` is not applied if enums have incompatible layouts.
// Regression test for issue #66856.
//
// compile-flags: -Zmir-opt-level=3
// EMIT_MIR_FOR_EACH_BIT_WIDTH
// ignore-test This pass is broken since deaggregation changed
enum Src {
Foo(u8),
Bar,
}
enum Dst {
Foo(u8),
}
// EMIT_MIR simplify_arm_identity.main.SimplifyArmIdentity.diff
fn main() {
let e: Src = Src::Foo(0);
let _: Dst = match e {
Src::Foo(x) => Dst::Foo(x),
Src::Bar => Dst::Foo(0),
};
}