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gcc/gcc ChangeLog.tree-ssa timevar.def tree-cf ...


CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	tree-ssa-20020619-branch
Changes by:	law@gcc.gnu.org	2003-10-24 04:28:55

Modified files:
	gcc            : ChangeLog.tree-ssa timevar.def tree-cfg.c 
	                 tree-dump.c tree-flow.h tree-optimize.c 
	                 tree-ssa-dom.c tree.h 

Log message:
	* timevar.def (TV_TREE_SSA_THREAD_JUMPS): New timevar.
	* tree-dump.c (dump_files): Add dump file for jump threading.
	* tree.h (TDI_thread_jumps): New enum member.
	* tree-cfg.c (tree_block_forwards_to): No longer static.
	* tree-flow.h (tree_block_forwards_to): Prototype.
	(tree_ssa_dominator_thread_jumps): Likewise.
	* tree-optimize.c (optimize_function_tree): Call jump threader.
	* tree-ssa-dom.c (tree_ssa_dominator_optimize_1): New function.
	Common code for redundancy elimination and jump threading on
	the dominator tree.  Slightly different callback initialization
	for redundancy elimination and jump threading.  Initialize
	block forwardable attribute.
	(tree_ssa_dominator_optimize): Call tree_ssa_dominator_optimize_1.
	(tree_ssa_dominator_thread_jumps): New function.
	(thread_edge): Mark results of PHI nodes as needing rewriting if
	we have threaded through a block with PHI nodes.
	(thread_through_successor): If thread_through_phis is nonzero,
	then allow jump threading through blocks with PHI nodes.  If the
	target block is a forwarder block, then forward the jump.
	(thread_jumps_walk_stmts): Statement walker for dominator thread
	jumping.
	
	* tree-ssa-dom.c (record_equivalence_from_incoming_edge): Fix
	comment typo.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.tree-ssa.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.2.778&r2=1.1.2.779
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/timevar.def.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.14.2.19&r2=1.14.2.20
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-cfg.c.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.4.182&r2=1.1.4.183
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-dump.c.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.6.2.43&r2=1.6.2.44
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-flow.h.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.4.132&r2=1.1.4.133
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-optimize.c.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.4.58&r2=1.1.4.59
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-dom.c.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.2.64&r2=1.1.2.65
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree.h.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.342.2.113&r2=1.342.2.114


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