gcc/gcc ChangeLog Makefile.in common.opt opts. ...

[dberlin@gcc.gnu.org]

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	dberlin@gcc.gnu.org	2005-03-01 17:59:07

Modified files:
	gcc            : ChangeLog Makefile.in common.opt opts.c 
	                 timevar.def tree-flow.h tree-optimize.c 
	                 tree-pass.h tree-ssa-dce.c 
	gcc/doc        : invoke.texi passes.texi 
Added files:
	gcc/testsuite/gcc.dg/tree-ssa: ssa-sink-1.c ssa-sink-2.c 
	                               ssa-sink-3.c ssa-sink-4.c 

Log message:
	2005-03-01  Daniel Berlin <dberlin@dberlin.org>
	
	* Makefile.in (tree-ssa-sink.o): New.
	(OBJS-common): Add tree-ssa-sink.o.
	* common.opt: Add -ftree-sink
	* opts.c (decode_options): flag_tree_sink is set at O1 or higher.
	* timevar.def (TV_TREE_SINK): new timevar.
	* tree-flow.h (is_hidden_global_store): Prototype.
	* tree-optimize.c (init_tree_optimization_passes): Add
	pass_sink_code.
	* tree-pass.h (pass_sink_code): New.
	* tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Move checking
	for non-obvious global store store to is_hidden_global_store, and
	call that new function.
	* tree-ssa-sink.c: New file.
	* doc/invoke.texi: Document -fdump-tree-sink and -ftree-sink.
	* doc/passes.texi: Document forward store motion.
	* testsuite/gcc.dg/tree-ssa/ssa-sink-1.c: New test
	* testsuite/gcc.dg/tree-ssa/ssa-sink-2.c: New test
	* testsuite/gcc.dg/tree-ssa/ssa-sink-3.c: New test
	* testsuite/gcc.dg/tree-ssa/ssa-sink-4.c: New test

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.7625&r2=2.7626
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/Makefile.in.diff?cvsroot=gcc&r1=1.1449&r2=1.1450
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/common.opt.diff?cvsroot=gcc&r1=1.62&r2=1.63
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/opts.c.diff?cvsroot=gcc&r1=1.94&r2=1.95
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/timevar.def.diff?cvsroot=gcc&r1=1.43&r2=1.44
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-flow.h.diff?cvsroot=gcc&r1=2.81&r2=2.82
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-optimize.c.diff?cvsroot=gcc&r1=2.74&r2=2.75
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-pass.h.diff?cvsroot=gcc&r1=2.27&r2=2.28
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-dce.c.diff?cvsroot=gcc&r1=2.32&r2=2.33
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/doc/invoke.texi.diff?cvsroot=gcc&r1=1.583&r2=1.584
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/doc/passes.texi.diff?cvsroot=gcc&r1=1.50&r2=1.51
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/tree-ssa/ssa-sink-1.c.diff?cvsroot=gcc&r1=NONE&r2=1.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/tree-ssa/ssa-sink-2.c.diff?cvsroot=gcc&r1=NONE&r2=1.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/tree-ssa/ssa-sink-3.c.diff?cvsroot=gcc&r1=NONE&r2=1.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/tree-ssa/ssa-sink-4.c.diff?cvsroot=gcc&r1=NONE&r2=1.1