File: const-array.rs

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rustc 1.88.0%2Bdfsg1-1
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//@ compile-flags: -Copt-level=3

#![crate_type = "lib"]

const LUT: [u8; 4] = [1, 1, 1, 1];

// CHECK-LABEL: @decode
#[no_mangle]
pub fn decode(i: u8) -> u8 {
    // CHECK: start:
    // CHECK-NEXT: icmp
    // CHECK-NEXT: select
    // CHECK-NEXT: ret
    if i < 4 { LUT[i as usize] } else { 2 }
}