File: simplify-branch-same.rs

package info (click to toggle)
rustc 1.88.0%2Bdfsg1-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 934,128 kB
  • sloc: xml: 158,127; python: 36,062; javascript: 19,855; sh: 19,700; cpp: 18,947; ansic: 12,993; asm: 4,792; makefile: 690; lisp: 29; perl: 29; ruby: 19; sql: 11
file content (21 lines) | stat: -rw-r--r-- 445 bytes parent folder | download | duplicates (16) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
 
// Regression test for SimplifyBranchSame miscompilation.
//@ run-pass

macro_rules! m {
    ($a:expr, $b:expr, $c:block) => {
        match $a {
            Lto::Fat | Lto::Thin => { $b; (); $c }
            Lto::No => { $b; () }
        }
    }
}

pub enum Lto { No, Thin, Fat }

fn f(mut cookie: u32, lto: Lto) -> u32 {
    let mut _a = false;
    m!(lto, _a = true, {cookie = 0});
    cookie
}

fn main() { assert_eq!(f(42, Lto::Thin), 0) }