Function next_nonempty_block

crates/codegen/src/ir.rs:2627–2635

Follow chain of empty blocks to find first non-empty block.

(blocks: &[Block], mut idx: BlockIdx)

/// Follow chain of empty blocks to find first non-empty block.
fn next_nonempty_block(blocks: &[Block], mut idx: BlockIdx) -> BlockIdx {
    while idx != BlockIdx::NULL
        && blocks[idx.idx()].instructions.is_empty()
        && blocks[idx.idx()].next != BlockIdx::NULL
    {
        idx = blocks[idx.idx()].next;
    }
    idx
}

fn instruction_lineno(instr: &InstructionInfo) -> i32 {
    instr