Re:How many registers does an x86-64 CPU have? (2020)
by jandrewrogers on Saturday February 14, 2026 @10:02AM
(#47015025)
Most function calls are aggressively inlined by the compiler such that they are no longer "function calls". More registers will make that even more effective.
[ Parent
| on HN ]
Re:How many registers does an x86-64 CPU have? (2020)
by burnt-resistor on Saturday February 14, 2026 @11:33AM
(#47015858)
That depends on if something like LTO is possible and a function isn't declared to use one of the plethora of calling conventions. What it means is that new calling conventions will be needed and that this new platform will be able to use pass by register for higher arity functions.