Re: Telling gcc to assume a register value

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On 3/23/21 1:38 AM, Rena via Gcc-help wrote:
> I'm building patches for a GameCube game, which sets r2 and r13 at
> startup and never changes them. Is there any way to tell gcc to assume
> these registers have specific values, so that it can optimize code
> that references memory in the areas they point to?

That depends on exactly what you mean. Does https://gcc.gnu.org/onlinedocs/gcc/Global-Register-Variables.html
do what you want?

-- 
Andrew Haley  (he/him)
Java Platform Lead Engineer
Red Hat UK Ltd. <https://www.redhat.com>
https://keybase.io/andrewhaley
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