From 9576645a848b23fddc24b4d5285168a7cfe64c24 Mon Sep 17 00:00:00 2001
From: Dan Gohman <gohman@apple.com>
Date: Thu, 1 Jul 2010 01:33:21 +0000
Subject: Don't use operator[] here, because it's not desirable to insert a
 default value if the search fails.

llvm-svn: 107368
---
 llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

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

diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index 40995849238..8cf279a8acf 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -6127,8 +6127,11 @@ SelectionDAGBuilder::HandlePHINodesInSuccessorBlocks(const BasicBlock *LLVMBB) {
         }
         Reg = RegOut;
       } else {
-        Reg = FuncInfo.ValueMap[PHIOp];
-        if (Reg == 0) {
+        DenseMap<const Value *, unsigned>::iterator I =
+          FuncInfo.ValueMap.find(PHIOp);
+        if (I != FuncInfo.ValueMap.end())
+          Reg = I->second;
+        else {
           assert(isa<AllocaInst>(PHIOp) &&
                  FuncInfo.StaticAllocaMap.count(cast<AllocaInst>(PHIOp)) &&
                  "Didn't codegen value into a register!??");
-- 
cgit v1.2.3