r169095 - in /trunk/gcc: ChangeLog caller-save....

[law@gcc.gnu.org]

Author: law
Date: Fri Jan 21 16:49:31 2011
New Revision: 169095

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=169095
Log:

	PR rtl-optimization/41619
	* caller-save.c (setup_save_areas): Break out code to determine
	which hard regs are live across calls by examining the reload chains
	so that it is always used.
	Eliminate code which checked REG_N_CALLS_CROSSED.

	PR rtl-optimization/41619
	* gcc.dg/pr41619.c: New.


Added:
    trunk/gcc/testsuite/gcc.dg/pr41619.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/caller-save.c
    trunk/gcc/testsuite/ChangeLog