From: Richard Biener <rguenther@suse.de>
Date: Mon, 17 Feb 2014 15:34:03 +0000 (+0000)
Subject: tree-vect-stmts.c (free_stmt_vec_info): Clear BB and release SSA defs of pattern... 
X-Git-Tag: releases/gcc-4.9.0~893
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=f0281fde20ca4d61c5e51213c096492a7c3a8acf;p=thirdparty%2Fgcc.git

tree-vect-stmts.c (free_stmt_vec_info): Clear BB and release SSA defs of pattern stmts.

2014-02-17  Richard Biener  <rguenther@suse.de>

	* tree-vect-stmts.c (free_stmt_vec_info): Clear BB and
	release SSA defs of pattern stmts.

From-SVN: r207826
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index dcd4614734a4..c0e3b699b6ea 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2014-02-17  Richard Biener  <rguenther@suse.de>
+
+	* tree-vect-stmts.c (free_stmt_vec_info): Clear BB and
+	release SSA defs of pattern stmts.
+
 2014-02-17  Richard Biener  <rguenther@suse.de>
 
 	* tree-inline.c (expand_call_inline): Release the virtual
diff --git a/gcc/tree-vect-stmts.c b/gcc/tree-vect-stmts.c
index 8ed834bc5fa5..7e47feb61fcc 100644
--- a/gcc/tree-vect-stmts.c
+++ b/gcc/tree-vect-stmts.c
@@ -7389,13 +7389,25 @@ free_stmt_vec_info (gimple stmt)
       if (patt_info)
 	{
 	  gimple_seq seq = STMT_VINFO_PATTERN_DEF_SEQ (patt_info);
+	  gimple patt_stmt = STMT_VINFO_STMT (patt_info);
+	  gimple_set_bb (patt_stmt, NULL);
+	  tree lhs = gimple_get_lhs (patt_stmt);
+	  if (TREE_CODE (lhs) == SSA_NAME)
+	    release_ssa_name (lhs);
 	  if (seq)
 	    {
 	      gimple_stmt_iterator si;
 	      for (si = gsi_start (seq); !gsi_end_p (si); gsi_next (&si))
-		free_stmt_vec_info (gsi_stmt (si));
+		{
+		  gimple seq_stmt = gsi_stmt (si);
+		  gimple_set_bb (seq_stmt, NULL);
+		  lhs = gimple_get_lhs (patt_stmt);
+		  if (TREE_CODE (lhs) == SSA_NAME)
+		    release_ssa_name (lhs);
+		  free_stmt_vec_info (seq_stmt);
+		}
 	    }
-	  free_stmt_vec_info (STMT_VINFO_RELATED_STMT (stmt_info));
+	  free_stmt_vec_info (patt_stmt);
 	}
     }