r121553 - in /trunk/gcc: ChangeLog lower-subreg.c

[ian@gcc.gnu.org]

Author: ian
Date: Sat Feb  3 23:24:05 2007
New Revision: 121553

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=121553
Log:
	* lower-subreg.c (simple_move_operand): New static function,
	broken out of simple_move.  Reject LABEL_REF, SYMBOL_REF, and HIGH
	operands.
	(simple_move): Call simple_move_operand.
	(find_decomposable_subregs): Add special handling of MEMs.
	(can_decompose_p): Rename from cannot_decompose_p.  Reverse
	meaning of return value.  If we see a hard register, test whether
	it can store a word_mode value.  Change all callers.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/lower-subreg.c