LLVM_ERROR with -Zmir-opt-level=3: match.rs

[matthiaskrgr]

Code from ./src/test/codegen/match.rs

#![crate_type = "lib"]

pub enum E {
    A,
    B,
}

#[no_mangle]
pub fn exhaustive_match(e: E) -> u8 {
    match e {
        E::A => 0,
        E::B => 1,
    }
}

There was an LLVM ERROR with
rustc ./src/test/codegen/match.rs -Zmir-opt-level=3

Function return type does not match operand type of return inst!
  ret i1 %7
 i8in function exhaustive_match
LLVM ERROR: Broken function found, compilation aborted!

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repo @ 5e3f1b1

Backtrace

Function return type does not match operand type of return inst!
  ret i1 %7
 i8in function exhaustive_match
LLVM ERROR: Broken function found, compilation aborted!

[matthiaskrgr]

Probably related to #75382

[JulianKnodt]

Should be fixed by #75537