r122320 - in /branches/dataflow-branch/gcc: Cha...

[uweigand@gcc.gnu.org]

Author: uweigand
Date: Sun Feb 25 21:08:07 2007
New Revision: 122320

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=122320
Log:
	* reload.c (find_reloads_address_1): Handle PLUS expressions resulting
	from register elimination as PRE_MODIFY / POST_MODIFY increments.
	Do not attempt to handle MEM inside auto-inc expressions.
	* reload1.c (eliminate_regs_1): Do not attempt to handle elimination
	of a register modified by an auto-inc expression.  However, do handle
	elimination of a register used as PRE_MODIFY / POST_MODIFY increment.
	(elimination_effects): Prohibit elimination of a register modified
	by an auto-inc expression.  Disable register elimination rules whose
	target register is modified by an auto-inc expression with variable
	increment.

Modified:
    branches/dataflow-branch/gcc/ChangeLog.dataflow
    branches/dataflow-branch/gcc/reload.c
    branches/dataflow-branch/gcc/reload1.c