From: hubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Tue, 6 Apr 2010 15:18:18 +0000 (+0000)
Subject: 	PR tree-optimization/42906
X-Git-Url: http://git.sourceforge.jp/view?p=pf3gnuchains%2Fgcc-fork.git;a=commitdiff_plain;h=c331b51269bc9283c5d8f6360064881308345c58;hp=d1e919e020030a76554ec56252becf6d9be6949a

	PR tree-optimization/42906

	* tree-ssa-dce.c (mark_control_dependent_edges_necessary): Add IGNORE_SELF
	argument; set visited_control_parents for fully processed BBs.
	(find_obviously_necessary_stmts): Update call of
	mark_control_dependent_edges_necessary.
	(propagate_necessity): Likewise; handle PHI edges more curefully.

	* gcc.dg/tree-ssa/dce-1.c: New testcase.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@158004 138bc75d-0d04-0410-961f-82ee72b054a4
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 77af22cc503..a05b59588d4 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,13 @@
+2010-04-06  Jan Hubicka  <jh@suse.czpli
+
+	PR tree-optimization/42906
+
+	* tree-ssa-dce.c (mark_control_dependent_edges_necessary): Add IGNORE_SELF
+	argument; set visited_control_parents for fully processed BBs.
+	(find_obviously_necessary_stmts): Update call of
+	mark_control_dependent_edges_necessary.
+	(propagate_necessity): Likewise; handle PHI edges more curefully.
+
 2010-04-06  Uros Bizjak  <ubizjak@gmail.com>
 
 	* config/i386/i386.md: Remove comment about 'e' and 'E'
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index e6fc3c04e87..22f893424f6 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2010-04-06  Jan Hubicka  <jh@suse.czpli
+
+	PR tree-optimization/42906
+	* gcc.dg/tree-ssa/dce-1.c: New testcase.
+
 2010-04-06  Tobias Burnus  <burnus@net-b.de>
 
 	PR fortran/43178