rust/tests/mir-opt/dest-prop/unreachable.rs

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2023-04-05 03:44:20 -05:00
// ignore-wasm32 compiled with panic=abort by default
// Check that unreachable code is removed after the destination propagation.
// Regression test for issue #105428.
//
// compile-flags: --crate-type=lib -Zmir-opt-level=0
// compile-flags: -Zmir-enable-passes=+ConstProp,+SimplifyConstCondition-after-const-prop,+DestinationPropagation
// EMIT_MIR unreachable.f.DestinationPropagation.diff
pub fn f<T: Copy>(a: T) {
let b = a;
if false {
g(a, b);
} else {
g(b, b);
}
}
#[inline(never)]
pub fn g<T: Copy>(_: T, _: T) {}