28 lines
674 B
Rust
28 lines
674 B
Rust
// skip-filecheck
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//@ unit-test: CopyProp
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#![feature(custom_mir, core_intrinsics)]
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#![allow(unused_assignments)]
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extern crate core;
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use core::intrinsics::mir::*;
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#[custom_mir(dialect = "analysis", phase = "post-cleanup")]
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fn f(c: bool) -> bool {
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mir!(
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let a: bool;
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let b: bool;
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{ Goto(bb1) }
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bb1 = { b = c; match b { false => bb3, _ => bb2 }}
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// This assignment to `a` does not dominate the use in `bb3`.
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// It should not be replaced by `b`.
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bb2 = { a = b; c = false; Goto(bb1) }
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bb3 = { RET = a; Return() }
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)
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}
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fn main() {
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assert_eq!(true, f(true));
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}
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// EMIT_MIR non_dominate.f.CopyProp.diff
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