r190223 - in /trunk/gcc: ChangeLog ira.c

[steven@gcc.gnu.org]

Author: steven
Date: Wed Aug  8 06:29:12 2012
New Revision: 190223

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=190223
Log:
	PR middle-end/54146
	* ira.c (init_live_subregs): Take live_subregs_used as a bitmap.
	(build_insn_chain): Make live_subregs_used a bitmap.
	Use SBITMAP_SIZE to ignore the paradoxical bytes of subregs.
	Use sbitmap_free to free the live_subreg sbitmaps.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/ira.c