r171999 - in /trunk/gcc: ChangeLog cprop.c

[steven@gcc.gnu.org]

Author: steven
Date: Tue Apr  5 19:49:52 2011
New Revision: 171999

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=171999
Log:
	* cprop.c (struct reg_use): Remove.
	(reg_use_table): Make an array of RTX.
	(find_used_regs, constprop_register, local_cprop_pass,
	bypass_block): Simplify users of reg_use_table.
	(cprop_insn): Likewise.  Iterate if copy propagation succeeded
	on one of the uses found by find_used_regs.

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