Function block_header

cranelift/reader/src/parser.rs:3221–3241

()

    #[test]
    fn block_header() {
        let (func, _) = Parser::new(
            "function %blocks() system_v {
                                     block0:
                                     block4(v3: i32):
                                     }",
        )
        .parse_function()
        .unwrap();
        assert_eq!(func.name.to_string(), "%blocks");

        let mut blocks = func.layout.blocks();

        let block0 = blocks.next().unwrap();
        assert_eq!(func.dfg.block_params(block0), &[]);

        let block4 = blocks.next().unwrap();
        let block4_args = func.dfg.block_params(block4);
        assert_eq!(block4_args.len(), 1);
        assert_eq!(func.dfg.value_type(block4_args[0]), types::I32);
    }

    #[test]
    fn duplicate_block() {