// Check that niche selection prefers zero and that jumps are optimized away. // See https://github.com/rust-lang/rust/pull/87794 //@ assembly-output: emit-asm //@ only-x86 //@ compile-flags: -Copt-level=3 #![crate_type = "lib"] #[repr(u8)] pub enum Size { One = 1, Two = 2, Three = 3, } #[no_mangle] pub fn handle(x: Option) -> u8 { match x { None => 0, Some(size) => size as u8, } } // There should be no jumps in output // CHECK-NOT: j