1
Why xor eax, eax?
Why do compilers love xor-ing registers so much?
Matt Godbolt
Sometime around 2010, while I was working at Google, I came up with a fun mini project to marry my love of retro computing with my excitement for working at big G.
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Visit xania.org → RSS feedOn Hacker News May 2012 – Dec 2025
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2
Advent of Compiler Optimisations 2025
Announcing AoCO 2025 - daily December posts about compiler optimisations
3
Addressing the adding situation
We learn why adding on x86 isn't as obvious as you might think
4
You can't fool the optimizer
Pattern recognition can see through obfuscated code to find the right instruction
5
When compilers surprise you
Sometimes compilers can surprise and delight even a jaded old engineer like me