x86 64 - Why would introducing useless MOV instructions speed up a tight loop in x86_64 assembly? - Stack Overflow - Shaarli

1974 shaares
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x86 64 - Why would introducing useless MOV instructions speed up a tight loop in x86_64 assembly? - Stack Overflow

There is really black magic !
also see that: http://www.agner.org/optimize/microarchitecture.pdf

asm · opti

July 28, 2013 at 10:15:23 UTC · permalink

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http://stackoverflow.com/questions/17896714/why-would-introducing-useless-mov-instructions-speed-up-a-tight-loop-in-x86-64-a

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