This is the mail archive of the gcc-patches@gcc.gnu.org mailing list for the GCC project.

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]
Other format:	[Raw text]

Re: Remove ira_{zero,one}_hard_reg_set

From: Vladimir Makarov <vmakarov at redhat dot com>
To: gcc-patches at gcc dot gnu dot org, rdsandiford at googlemail dot com
Date: Thu, 04 Sep 2008 16:23:13 -0400
Subject: Re: Remove ira_{zero,one}_hard_reg_set
References: <873akfbv0t.fsf@firetop.home>

Richard Sandiford wrote:

Very minor cleanup, but I noticed that ira_zero_hard_reg_set is
only ever used in "equal to empty" or "subset of empty" conditions.
They can be done more directly (and in theory, more efficiently)
using hard_reg_set_empty_p instead.  ira_one_hard_reg_set isn't
used at all.

Bootstrapped & regression-tested on x86_64-linux-gnu. OK to install?

Ok. Thanks for finding this, Richard.

gcc/
	* ira-int.h (ira_zero_hard_reg_set, ira_one_hard_reg_set): Delete.
	* ira-color.c (setup_allocno_left_conflicts_num): Use
	hard_reg_set_equal_p instead of a comparison with
	ira_zero_hard_reg_set.
	* ira.c (setup_reg_subclasses): Likewise.
	(setup_cover_and_important_classes): Likewise.
	(setup_class_translate): Likewise.
	(setup_reg_class_intersect_union): Likewise.
	(ira_zero_hard_reg_set, ira_one_hard_reg_set): Delete.
	(ira_init_once): Don't initialize them.

References:
- Remove ira_{zero,one}_hard_reg_set
  - From: Richard Sandiford

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]