perf: optimize cmp zero and jump with test #461
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xxuejie
approved these changes
Mar 7, 2025
mohanson
approved these changes
Mar 7, 2025
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When checking if a register is zero (
cmp $0, reg),test reg, regachieves the same result while using fewer bytes in encoding.I tested on 3 different machines, got a 1%~4% improvement.