From ea5db0c315f1ab8ee3be52e0e765c32d3efff024 Mon Sep 17 00:00:00 2001
From: Andrew Trick <atrick@apple.com>
Date: Sat, 25 May 2013 02:20:36 +0000
Subject: Track IR ordering of SelectionDAG nodes 1/4.

Use a field in the SelectionDAGNode object to track its IR ordering.
This adds fields and utility classes without changing existing
interfaces or functionality.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182701 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp')

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index 9799568e03..32035b0660 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -869,7 +869,7 @@ void SelectionDAGBuilder::clear() {
   UnusedArgNodeMap.clear();
   PendingLoads.clear();
   PendingExports.clear();
-  CurDebugLoc = DebugLoc();
+  CurInst = NULL;
   HasTailCall = false;
 }
 
@@ -951,14 +951,14 @@ void SelectionDAGBuilder::visit(const Instruction &I) {
   if (isa<TerminatorInst>(&I))
     HandlePHINodesInSuccessorBlocks(I.getParent());
 
-  CurDebugLoc = I.getDebugLoc();
+  CurInst = &I;
 
   visit(I.getOpcode(), I);
 
   if (!isa<TerminatorInst>(&I) && !HasTailCall)
     CopyToExportRegsIfNeeded(&I);
 
-  CurDebugLoc = DebugLoc();
+  CurInst = NULL;
 }
 
 void SelectionDAGBuilder::visitPHI(const PHINode &) {
-- 
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