On Montag, 27. Juni 2022 04:43:46 CEST J. Gareth Moreton via fpc-devel wrote: > testl $1,%ebx -> testb $1,%bl
Obviously, thats not the same. The latter will only compare the least- significant byte against 1, and ignore the rest of the register. The former will also compare the remainder of the register against zero. SO you canot do such "optimizations"
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