tests/codegen/match-unoptimized.rs

   1 // compile-flags: -C no-prepopulate-passes -Copt-level=0
   2
   3 #![crate_type = "lib"]
   4
   5 #[repr(u16)]
   6 pub enum E2 {
   7     A = 13,
   8     B = 42,
   9 }
  10
  11 // For unoptimized code we produce a `br` instead of a `switch`. Compare with
  12 // `tests/codegen/match-optimized.rs`
  13
  14 // CHECK-LABEL: @exhaustive_match_2
  15 #[no_mangle]
  16 pub fn exhaustive_match_2(e: E2) -> u8 {
  17     // CHECK: %[[CMP:.+]] = icmp eq i16 %{{.+}}, 13
  18     // CHECK-NEXT: br i1 %[[CMP:.+]],
  19     match e {
  20         E2::A => 0,
  21         E2::B => 1,
  22     }
  23 }