Guillaume Gomez ab7623e93c

Rollup merge of #140115 - dianqk:gvn-matchbr, r=oli-obk ...

mir-opt: execute MatchBranchSimplification after GVN

This can provide more opportunities for MatchBranchSimplification.

Currently, rustc does not optimize the following code into a single statement at mir-opt, and this PR fixes the first case.

```rust
pub fn match1(c: bool, v1: i32, v2: i32) -> i32 {
    if c { v1 - v2 } else { v1 - v2 }
}

pub fn match2(c: bool, v1: i32) -> i32 {
    if c { v1 - 1 } else { v1 - 1 }
}
```

https://rust.godbolt.org/z/Y8xPMjrfM

r? mir-opt

2025-05-05 21:32:30 +02:00

..

src

Rollup merge of #140115 - dianqk:gvn-matchbr, r=oli-obk

2025-05-05 21:32:30 +02:00

Cargo.toml

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messages.ftl

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