D on lm32-CPU: string argument on stack instead of register

[FeepingCreature]

On Tuesday, 4 August 2020 at 17:36:53 UTC, Michael Reese wrote:
> Thanks for suggesting! I tried, and the union works as well, 
> i.e. the function args are registered. But I noticed another 
> thing about all workarounds so far:
> Even if calls are inlined and arguments end up on the stack, 
> the linker puts code of the wrapper function in my final binary 
> event if it is never explicitly called. So until I find a way 
> to strip of uncalled functions from the binary (not sure the 
> linker can do it), the workarounds don't solve the size 
> problem. But they still make the code run faster.

Try -ffunction-sections -Wl,--gc-sections. That should remove all 
unreferenced functions. It removes all unreferenced sections, and 
writes every function into a separate section.