File: enum-early-otherwise-branch.rs

package info (click to toggle)
rustc 1.86.0%2Bdfsg1-1
  • links: PTS, VCS
  • area: main
  • in suites: sid
  • size: 913,560 kB
  • sloc: xml: 158,127; python: 35,921; javascript: 19,689; sh: 19,600; cpp: 18,906; ansic: 13,124; asm: 4,376; makefile: 708; perl: 29; lisp: 29; ruby: 19; sql: 11
file content (25 lines) | stat: -rw-r--r-- 561 bytes parent folder | download
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
//@ compile-flags: -Copt-level=3

#![crate_type = "lib"]

pub enum Enum {
    A(u32),
    B(u32),
    C(u32),
}

#[no_mangle]
pub fn foo(lhs: &Enum, rhs: &Enum) -> bool {
    // CHECK-LABEL: define{{.*}}i1 @foo(
    // CHECK-NOT: switch
    // CHECK-NOT: br
    // CHECK: [[SELECT:%.*]] = select
    // CHECK-NEXT: ret i1 [[SELECT]]
    // CHECK-NEXT: }
    match (lhs, rhs) {
        (Enum::A(lhs), Enum::A(rhs)) => lhs == rhs,
        (Enum::B(lhs), Enum::B(rhs)) => lhs == rhs,
        (Enum::C(lhs), Enum::C(rhs)) => lhs == rhs,
        _ => false,
    }
}