rust/tests/codegen/match-unoptimized.rs

24 lines
495 B
Rust

// compile-flags: -C no-prepopulate-passes -Copt-level=0
#![crate_type = "lib"]
#[repr(u16)]
pub enum E2 {
A = 13,
B = 42,
}
// For unoptimized code we produce a `br` instead of a `switch`. Compare with
// `tests/codegen/match-optimized.rs`
// CHECK-LABEL: @exhaustive_match_2
#[no_mangle]
pub fn exhaustive_match_2(e: E2) -> u8 {
// CHECK: %[[CMP:.+]] = icmp eq i16 %{{.+}}, 13
// CHECK-NEXT: br i1 %[[CMP:.+]],
match e {
E2::A => 0,
E2::B => 1,
}
}