[llvm-commits] [llvm] r154378 - /llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp

[Evan Cheng]

Author: evancheng
Date: Mon Apr  9 22:15:18 2012
New Revision: 154378

URL: http://llvm.org/viewvc/llvm-project?rev=154378&view=rev
Log:
Make the code slightly more palatable.

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=154378&r1=154377&r2=154378&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp Mon Apr  9 22:15:18 2012
@@ -1790,7 +1790,11 @@
 
   // isTailCall may be true since the callee does not reference caller stack
   // frame. Check if it's in the right position.
-  bool isTailCall = isInTailCallPosition(DAG, Node, InChain, TLI);
+  SDValue TCChain = InChain;
+  bool isTailCall = isInTailCallPosition(DAG, Node, TCChain, TLI);
+  if (isTailCall)
+    InChain = TCChain;
+
   std::pair<SDValue, SDValue> CallInfo =
     TLI.LowerCallTo(InChain, RetTy, isSigned, !isSigned, false, false,
                     0, TLI.getLibcallCallingConv(LC), isTailCall,