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Re: Make more use of REG_NREGS
- From: Jeff Law <law at redhat dot com>
- To: gcc-patches at gcc dot gnu dot org, richard dot sandiford at linaro dot org
- Date: Mon, 11 Sep 2017 13:51:33 -0600
- Subject: Re: Make more use of REG_NREGS
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On 09/11/2017 11:14 AM, Richard Sandiford wrote:
> An upcoming patch will convert hard_regno_nregs into an inline
> function, which in turn allows hard_regno_nregs to be used as the
> name of a targetm field. This patch rewrites uses that are more
> easily (and efficiently) written as REG_NREGS.
>
> Tested on aarch64-linux-gnu, x86_64-linux-gnu and powerpc64le-linux-gnu.
> Also tested by comparing the testsuite assembly output on at least one
> target per CPU directory. OK to install?
>
> Richard
>
>
> 2017-09-11 Richard Sandiford <richard.sandiford@linaro.org>
>
> gcc/
> * caller-save.c (add_used_regs): Use REG_NREGS instead of
> hard_regno_nregs.
> * config/aarch64/aarch64.c (aarch64_split_combinev16qi): Likewise.
> * config/arm/arm.c (output_move_neon): Likewise.
> (arm_attr_length_move_neon): Likewise.
> (neon_split_vcombine): Likewise.
> * config/c6x/c6x.c (c6x_mark_reg_read): Likewise.
> (c6x_mark_reg_written): Likewise.
> (c6x_dwarf_register_span): Likewise.
> * config/i386/i386.c (ix86_save_reg): Likewise.
> * config/ia64/ia64.c (mark_reg_gr_used_mask): Likewise.
> (rws_access_reg): Likewise.
> * config/s390/s390.c (s390_call_saved_register_used): Likewise.
> * mode-switching.c (create_pre_exit): Likewise.
> * ree.c (combine_reaching_defs): Likewise.
> (add_removable_extension): Likewise.
> * regcprop.c (find_oldest_value_reg): Likewise.
> (copyprop_hardreg_forward_1): Likewise.
> * reload.c (reload_inner_reg_of_subreg): Likewise.
> (push_reload): Likewise.
> (combine_reloads): Likewise.
> (find_dummy_reload): Likewise.
> (reload_adjust_reg_for_mode): Likewise.
> * reload1.c (find_reload_regs): Likewise.
> (forget_old_reloads_1): Likewise.
> (reload_reg_free_for_value_p): Likewise.
> (reload_adjust_reg_for_temp): Likewise.
> (emit_reload_insns): Likewise.
> (delete_output_reload): Likewise.
> * sel-sched.c (choose_best_reg_1): Likewise.
> (choose_best_pseudo_reg): Likewise.
OK.
jeff