mirror of https://github.com/rust-lang/rust.git
23 lines
516 B
Rust
23 lines
516 B
Rust
// ignore-wasm32 compiled with panic=abort by default
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// This is a copy of the `dead_stores_79191` test, except that we turn on DSE. This demonstrates
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// that that pass enables this one to do more optimizations.
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// unit-test: DestinationPropagation
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// compile-flags: -Zmir-enable-passes=+DeadStoreElimination
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fn id<T>(x: T) -> T {
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x
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}
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// EMIT_MIR dead_stores_better.f.DestinationPropagation.after.mir
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pub fn f(mut a: usize) -> usize {
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let b = a;
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a = 5;
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a = b;
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id(a)
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}
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fn main() {
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f(0);
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}
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