[Bug target/96061] Please support 'no_caller_saved_registers' attribute on aarch64 (or maybe on all targets)

[alex.popov at linux dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96061

--- Comment #6 from Alexander Popov <alex.popov at linux dot com> ---
>> Could you explain the connection between your attribute for zeroing
>> registers and 'no_caller_saved_registers' attribute?
> 
> We are porting
> 
> https://gitlab.com/x86-gcc/gcc/-/tree/users/hjl/caller-saved/old
> 
> from x86 back-end to middle-end.  no_caller_saved_registers changes what
> registers zero_call_used_regs can do.  Move no_caller_saved_registers to
> middle-end has a direct impact on zero_call_used_regs implementation in
> middle-end.

Ok. So, as I can understand, your work will enable 'no_caller_saved_registers'
attribute for all architectures. Am I right?

If so, good luck to you! Looking forward to your results.