diff options
Diffstat (limited to 'lib/CodeGen/SelectionDAG/LegalizeDAG.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/LegalizeDAG.cpp | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp index 08e8d776fd..8c26c5821b 100644 --- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp +++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp @@ -323,8 +323,11 @@ SDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) { Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. // There is no need to legalize the size argument (Operand #1) if (Tmp1 != Node->getOperand(0)) - Result = DAG.getNode(Node->getOpcode(), MVT::Other, Tmp1, - Node->getOperand(1)); + Node->setAdjCallChain(Tmp1); + // Note that we do not create new ADJCALLSTACK DOWN/UP nodes here. These + // nodes are treated specially and are mutated in place. This makes the dag + // legalization process more efficient and also makes libcall insertion + // easier. break; case ISD::DYNAMIC_STACKALLOC: Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. |