// skip-filecheck | |
// EMIT_MIR_FOR_EACH_PANIC_STRATEGY | |
// This is a copy of the `dead_stores_79191` test, except that we turn on DSE. This demonstrates | |
// that that pass enables this one to do more optimizations. | |
//@ unit-test: CopyProp | |
//@ compile-flags: -Zmir-enable-passes=+DeadStoreElimination | |
fn id<T>(x: T) -> T { | |
x | |
} | |
// EMIT_MIR dead_stores_better.f.CopyProp.after.mir | |
pub fn f(mut a: usize) -> usize { | |
let b = a; | |
a = 5; | |
a = b; | |
id(a) | |
} | |
fn main() { | |
f(0); | |
} |