r136012 - in /trunk/gcc: ChangeLog doc/md.texi ...

[krebbel@gcc.gnu.org]

Author: krebbel
Date: Tue May 27 11:46:45 2008
New Revision: 136012

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=136012
Log:
2008-05-27  Andreas Krebbel  <krebbel1@de.ibm.com>

	* reload.c: (find_reloads): Skip alternatives according to the
	"enabled" attribute. Constify the constraint variable.
	* recog.c (get_attr_enabled): Add default implementation.
	(extract_insn): Set the alternative_enabled_p array
	in the recog_data struct.
	(preprocess_constraints, constrain_operands): Skip
	alternatives according to the "enabled" attribute
	* recog.h (struct recog_data): New field alternative_enabled_p.
	(skip_alternative): New inline function.
	* regclass.c: (record_operand_costs): Check the "enabled"
	attribute.
	(record_reg_classes): Skip alternative according to the
	"enabled" attribute.

	* doc/md.texi: Add documention for the "enabled" attribute.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/doc/md.texi
    trunk/gcc/recog.c
    trunk/gcc/recog.h
    trunk/gcc/regclass.c
    trunk/gcc/reload.c