gcc/gcc ChangeLog combine.c cse.c dojump.c int ...

[bonzini at gcc dot gnu dot org]

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	bonzini@gcc.gnu.org	2004-04-29 07:51:00

Modified files:
	gcc            : ChangeLog combine.c cse.c dojump.c integrate.c 
	                 simplify-rtx.c 

Log message:
	2004-04-29  Paolo Bonzini  <bonzini@gnu.org>
	
	* combine.c (combine_simplify_rtx): Adjust call to use
	simplify_relational_operation.  Do not use SELECT_CC_MODE
	when a comparison already has a MODE_CC mode.
	(simplify_set): simplify_relational_operation may now
	return another relational expression.
	* cse.c (fold_rtx): simplify_relational_operation now
	takes of computing the comparison mode.
	* dojump.c (compare_from_rtx): Use simplify_relational_operation,
	remove dead code.
	(do_compare_rtx_and_jump): Likewise.
	* integrate.c (subst_constants): simplify_relational_operation
	may now return another relational expression.
	* simplify-rtx.c (simplify_gen_relational): Move most code to
	the new simplify_relational_operation and
	simplify_relational_operation_1 functions.
	(simplify_relational_operation): Rewritten.
	(simplify_relational_operation_1): New function.
	(simplify_ternary_operation): simplify_relational_operation
	may now return another relational expression.
	(simplify_rtx): Remove unnecessary temp variable.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.3510&r2=2.3511
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/combine.c.diff?cvsroot=gcc&r1=1.422&r2=1.423
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cse.c.diff?cvsroot=gcc&r1=1.298&r2=1.299
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/dojump.c.diff?cvsroot=gcc&r1=1.15&r2=1.16
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/integrate.c.diff?cvsroot=gcc&r1=1.254&r2=1.255
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/simplify-rtx.c.diff?cvsroot=gcc&r1=1.187&r2=1.188