On 9/11/19 1:16 PM, Richard Sandiford wrote:
> The inheritance code in find_equiv_reg can use clobbers_reg_p
> to test whether a call clobbers either of the equivalent registers.
>
> reload and find_reg use crtl->abi to test whether a register needs
> to be saved in the prologue before use.
>
> reload_as_needed can use full_and_partial_reg_clobbers and thus
> avoid needing to keep its own record of which registers are part
> call-clobbered.
>
>
> 2019-09-11 Richard Sandiford <richard.sandif...@arm.com>
>
> gcc/
> * reload.c: Include function-abi.h.
> (find_equiv_reg): Use clobbers_reg_p to test whether either
> of the equivalent registers is clobbered by a call.
> * reload1.c: Include function-abi.h.
> (reg_reloaded_call_part_clobbered): Delete.
> (reload): Use crtl->abi to test which registers would need
> saving in the prologue before use.
> (find_reg): Likewise.
> (emit_reload_insns): Remove code for reg_reloaded_call_part_clobbered.
> (reload_as_needed): Likewise. Use full_and_partial_reg_clobbers
> instead of call_used_or_fixed_regs | reg_reloaded_call_part_clobbered.
>
OK
jeff
