gcc/gcc df.c df.h ra-build.c ra-colorize.c ra. ...

[matz@gcc.gnu.org]

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	matz@gcc.gnu.org	2003-03-07 22:06:19

Modified files:
	gcc            : df.c df.h ra-build.c ra-colorize.c ra.c ra.h 
	                 ChangeLog 

Log message:
	* df.h (enum df_ref_flags.DF_REF_STRIPPED): New.
	(DF_FOR_REGALLOC): New.
	* df.c (df_ref_record): Set DF_REF_STRIPPED.
	(read_modify_subreg_p): Simplify.
	(df_def_record_1, df_uses_record): Set DF_REF_MODE_CHANGE more often.
	Use DF_FOR_REGALLOC.
	* ra.h (struct web): New member subreg_stripped.
	(invalid_mode_change_regs): Declare.
	* ra.c (invalid_mode_change_regs): New.
	(init_ra): Initialize it.
	* ra-build.c (init_one_web_common, remember_web_was_spilled): Use it.
	Use CANNOT_CHANGE_MODE_CLASS as ifdef guard.
	(reinit_one_web, parts_to_web_1): Deal with subreg_stripped.
	* ra-colorize.c (colorize_one_web): Use invalid_mode_change_regs.
	Use CANNOT_CHANGE_MODE_CLASS as ifdef guard.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/df.c.diff?cvsroot=gcc&r1=1.46&r2=1.47
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/df.h.diff?cvsroot=gcc&r1=1.15&r2=1.16
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ra-build.c.diff?cvsroot=gcc&r1=1.16&r2=1.17
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ra-colorize.c.diff?cvsroot=gcc&r1=1.9&r2=1.10
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ra.c.diff?cvsroot=gcc&r1=1.7&r2=1.8
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ra.h.diff?cvsroot=gcc&r1=1.5&r2=1.6
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=1.16973&r2=1.16974