From c97df860dd8172077c9b3b086c192f1b05365699 Mon Sep 17 00:00:00 2001
From: Dan Gohman <gohman@apple.com>
Date: Fri, 18 Jun 2010 15:36:18 +0000
Subject: [PATCH] Don't call clear() on DbgInfo when it's going to be deleted
 anyway.

Don't replace the old DbgInfo with a new one when clear() on the
old one is sufficient.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106283 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/CodeGen/SelectionDAG/SelectionDAG.cpp | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index 75cb2c2d06a..91df1ab7b44 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -807,7 +807,6 @@ void SelectionDAG::init(MachineFunction &mf) {
 SelectionDAG::~SelectionDAG() {
   allnodes_clear();
   delete Ordering;
-  DbgInfo->clear();
   delete DbgInfo;
 }
 
@@ -837,8 +836,6 @@ void SelectionDAG::clear() {
   delete Ordering;
   Ordering = new SDNodeOrdering();
   DbgInfo->clear();
-  delete DbgInfo;
-  DbgInfo = new SDDbgInfo();
 }
 
 SDValue SelectionDAG::getSExtOrTrunc(SDValue Op, DebugLoc DL, EVT VT) {