File: duplicate_switch_targets.rs

package info (click to toggle)
rustc 1.85.0%2Bdfsg3-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental, sid, trixie
  • size: 893,396 kB
  • sloc: xml: 158,127; python: 35,830; javascript: 19,497; cpp: 19,002; sh: 17,245; ansic: 13,127; asm: 4,376; makefile: 1,051; perl: 29; lisp: 29; ruby: 19; sql: 11
file content (29 lines) | stat: -rw-r--r-- 744 bytes parent folder | download | duplicates (3) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
 
//@ test-mir-pass: InstSimplify-after-simplifycfg

#![feature(custom_mir, core_intrinsics)]
#![crate_type = "lib"]

use std::intrinsics::mir::*;

// EMIT_MIR duplicate_switch_targets.assert_zero.InstSimplify-after-simplifycfg.diff
#[custom_mir(dialect = "runtime", phase = "post-cleanup")]
pub unsafe fn assert_zero(x: u8) -> u8 {
    // CHECK-LABEL: fn assert_zero(
    // CHECK: switchInt({{.*}}) -> [0: {{bb.*}}, otherwise: {{bb.*}}]
    mir! {
        {
            match x {
                0 => retblock,
                1 => unreachable,
                _ => unreachable,
            }
        }
        unreachable = {
            Unreachable()
        }
        retblock = {
            RET = x;
            Return()
        }
    }
}