On 1/31/22 08:42, Peter McKinna via Gcc-help wrote:
Hopefully this is the correct forum. I have a Pascal like language using gcc as the backend. For some reason a call to a simple procedure with no parameters generates code to initialises eax to zero before the call. With any parameters in the proc there’s no init. Is there some way to prevent this init? Some flag I can set, some arcane piece of wizardry?
If your simple procedure doesn't have a prototype, EAX is initialized to the number of arguments passed in vector registers, for compatibility with old varargs functions. I suggest you provide a prototype. -- Andrew Haley (he/him) Java Platform Lead Engineer Red Hat UK Ltd. <https://www.redhat.com> https://keybase.io/andrewhaley EAC8 43EB D3EF DB98 CC77 2FAD A5CD 6035 332F A671
