mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-01 15:01:51 +00:00
31 lines
697 B
Rust
31 lines
697 B
Rust
// Regression test for issue #117331, where variable `a` was misidentified as
|
|
// being in SSA form (the definition occurs on the return edge only).
|
|
//
|
|
//@ edition:2021
|
|
//@ compile-flags: --crate-type=lib
|
|
//@ build-pass
|
|
//@ needs-unwind
|
|
#![feature(custom_mir, core_intrinsics)]
|
|
use core::intrinsics::mir::*;
|
|
|
|
#[custom_mir(dialect = "runtime", phase = "optimized")]
|
|
pub fn f() -> u32 {
|
|
mir!(
|
|
let a: u32;
|
|
{
|
|
Call(a = g(), ReturnTo(bb1), UnwindCleanup(bb2))
|
|
}
|
|
bb1 = {
|
|
RET = a;
|
|
Return()
|
|
}
|
|
bb2 (cleanup) = {
|
|
RET = a;
|
|
UnwindResume()
|
|
}
|
|
)
|
|
}
|
|
|
|
#[inline(never)]
|
|
pub fn g() -> u32 { 0 }
|