[llvm-commits] [llvm] r157215 - /llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp

[Owen Anderson]

Author: resistor
Date: Mon May 21 17:39:20 2012
New Revision: 157215

URL: http://llvm.org/viewvc/llvm-project?rev=157215&view=rev
Log:
Fix use of an unitialized value in the LegalizeOps expansion for ISD::SUB.  No in-tree targets exercise this path.

Patch by Micah Villmow.

Modified:
    llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp

Modified: llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp?rev=157215&r1=157214&r2=157215&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp Mon May 21 17:39:20 2012
@@ -3064,7 +3064,7 @@
            "Don't know how to expand this subtraction!");
     Tmp1 = DAG.getNode(ISD::XOR, dl, VT, Node->getOperand(1),
                DAG.getConstant(APInt::getAllOnesValue(VT.getSizeInBits()), VT));
-    Tmp1 = DAG.getNode(ISD::ADD, dl, VT, Tmp2, DAG.getConstant(1, VT));
+    Tmp1 = DAG.getNode(ISD::ADD, dl, VT, Tmp1, DAG.getConstant(1, VT));
     Results.push_back(DAG.getNode(ISD::ADD, dl, VT, Node->getOperand(0), Tmp1));
     break;
   }