r200224 - in /trunk/gcc: ChangeLog ira.c testsu...

[wmi@gcc.gnu.org]

Author: wmi
Date: Wed Jun 19 21:57:42 2013
New Revision: 200224

URL: http://gcc.gnu.org/viewcvs?rev=200224&root=gcc&view=rev
Log:
2013-06-19  Wei Mi  <wmi@google.com>

	PR rtl-optimization/57518
	* ira.c (set_paradoxical_subreg): Set pdx_subregs[regno]
	if regno is used in paradoxical subreg.
	(update_equiv_regs): Check pdx_subregs[regno] before
	set a reg to be equivalent with a mem.


Added:
    trunk/gcc/testsuite/gcc.dg/pr57518.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/ira.c
    trunk/gcc/testsuite/ChangeLog