@CopperheadSec @RichFelker @landley @johnregehr @kssreeram The CPU caches will nullify it if it was actually a nop anyway.
@hyc_symas @CopperheadSec @johnregehr @kssreeram If you think any compilers in that era had "good performance" you're delusional.
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@hyc_symas@CopperheadSec@johnregehr@kssreeram It was only tolerable because people wrote all the bottlenecks by hand in asm. -
@RichFelker@CopperheadSec@johnregehr@kssreeram which is still true today. -
@hyc_symas@CopperheadSec@johnregehr@kssreeram No, these days most asm is cargo-cult nonsense; same performance achievable in clean C. -
@hyc_symas@CopperheadSec@johnregehr@kssreeram If it's not, that's a compiler bug and your time is better spent reporting/fixing it. -
@RichFelker@CopperheadSec@johnregehr@kssreeram e.g. this ought to be a simple 64bit mult, still faster in ASM https://github.com/monero-project/bitmonero/blob/master/src/crypto/slow-hash.c#L719-L751 …
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