gcc/gcc ChangeLog common.opt tree-ssa-loop-ivc ...

[rakdver@gcc.gnu.org]

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	rakdver@gcc.gnu.org	2004-10-01 18:26:38

Modified files:
	gcc            : ChangeLog common.opt tree-ssa-loop-ivcanon.c 
	gcc/testsuite  : ChangeLog 
	gcc/testsuite/gcc.dg/tree-ssa: loop-1.c 

Log message:
	* common.opt (ftree-loop-ivcanon): Enable by default.
	* tree-ssa-loop-ivcanon.c (try_unroll_loop_completely):
	Enable complete loop unrolling.
	(canonicalize_induction_variables, tree_unroll_loops_completely):
	Reset scev info.
	
	* gcc.dg/tree-ssa/loop-1.c: Check that unrolling occurs already on
	tree level.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.5713&r2=2.5714
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/common.opt.diff?cvsroot=gcc&r1=1.56&r2=1.57
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-loop-ivcanon.c.diff?cvsroot=gcc&r1=2.4&r2=2.5
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.4369&r2=1.4370
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/tree-ssa/loop-1.c.diff?cvsroot=gcc&r1=1.3&r2=1.4