r176055 - in /branches/gcc-4_6-branch/gcc: Chan...

Fri Jul 8 17:46:00 GMT 2011

Author: gjl
Date: Fri Jul  8 17:46:38 2011
New Revision: 176055

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=176055
Log:

	PR target/46779
	Backport from mainline SVN 176053.
	2011-07-08  Georg-Johann Lay
	* config/avr/avr.c (avr_hard_regno_mode_ok): Rewrite.
	In particular, allow 8-bit values in r28 and r29.
	(avr_hard_regno_scratch_ok): Disallow any register that might be
	part of the frame pointer.
	(avr_hard_regno_rename_ok): Same.
	(avr_legitimate_address_p): Don't allow SUBREGs.

Modified:
    branches/gcc-4_6-branch/gcc/ChangeLog
    branches/gcc-4_6-branch/gcc/config/avr/avr.c