gcc/gcc ChangeLog passes.c tree-pass.h tree-ss ...

[law@gcc.gnu.org]

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	law@gcc.gnu.org	2005-09-27 18:47:28

Modified files:
	gcc            : ChangeLog passes.c tree-pass.h tree-ssa-copy.c 

Log message:
	* passes.c (init_optimization_passes): Replace copy propagation
	passes immediately after DOM with phi-only copy propagation
	pases.  Add phi-only copy propagation pass after first DOM pass.
	* tree-pass.h (pass_phi_only_copy_prop): Declare.
	* tree-ssa-copy.c (init_copy_prop): Accept new PHI_ONLY argument.
	If true, then mark all non-control statements with DONT_SIMULATE_AGAIN.
	(execute_copy_prop): Accept new PHI_ONLY argument.  Pass it along
	to init_copy_prop.  Callers updated.
	(do_phi_only_copy_prop): New function.
	(pass_phi_only_copy_prop): New pass descriptor.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.10032&r2=2.10033
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/passes.c.diff?cvsroot=gcc&r1=2.114&r2=2.115
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-pass.h.diff?cvsroot=gcc&r1=2.57&r2=2.58
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-copy.c.diff?cvsroot=gcc&r1=2.39&r2=2.40