[Bug tree-optimization/15349] [tree-ssa] Merge two phi nodes.

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2005-01-20 19:20 -------
Subject: Bug 15349

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	kazu@gcc.gnu.org	2005-01-20 19:20:40

Modified files:
	gcc            : ChangeLog timevar.def tree-cfg.c 
	                 tree-optimize.c tree-pass.h 
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/gcc.dg/tree-ssa: pr15349.c 

Log message:
	PR tree-optimization/15349
	* timevar.def (TV_TREE_MERGE_PHI): New.
	* tree-cfg.c (tree_forwarder_block_p): Add a new argument
	PHI_WANTED.
	(remove_forwarder_block, cleanup_forwarder_blocks): Adjust the
	calls to tree_forwarder_block_p.
	(remove_forwarder_block_with_phi, merge_phi_nodes,
	gate_merge_phi, pass_merge_phi): New.
	* tree-optimize.c (init_tree_optimization_passes): Add
	pass_merge_phi.
	* tree-pass.h: Add an extern for pass_merge_phi;
	
	PR tree-optimization/15349
	* testsuite/gcc.dg/tree-ssa/pr15349.c: New.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.7204&r2=2.7205
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/timevar.def.diff?cvsroot=gcc&r1=1.41&r2=1.42
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-cfg.c.diff?cvsroot=gcc&r1=2.140&r2=2.141
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-optimize.c.diff?cvsroot=gcc&r1=2.68&r2=2.69
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-pass.h.diff?cvsroot=gcc&r1=2.24&r2=2.25
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.4914&r2=1.4915
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/tree-ssa/pr15349.c.diff?cvsroot=gcc&r1=NONE&r2=1.1



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15349