Function label_to_index

crates/rustc_codegen_spirv/src/linker/mem2reg.rs:48–53

(blocks: &[Block], id: Word)

}

fn label_to_index(blocks: &[Block], id: Word) -> usize {
    blocks
        .iter()
        .position(|b| b.label_id().unwrap() == id)
        .unwrap()
}

fn compute_reachable(blocks: &[Block]) -> Vec<bool> {
    fn recurse(blocks: &[Block], reachable: &mut [bool], block: usize) {