ref: 3e5cd8ce1ab3294217c14b05ccd4ee6caa28e280 dir: /test/asm/trimmed-macro-args.out/
3: "a" 2: "b" 1: "c" 3: "a" 2: "b" 1: "c" 3: "a" 2: " b" 1: "c"