1 files changed, 62 insertions, 0 deletions
diff --git a/llvm/lib/Target/PTX/PTXISelLowering.cpp b/llvm/lib/Target/PTX/PTXISelLowering.cpp
new file mode 100644
index 00000000000..9d7e34434e2
--- /dev/null
+++ b/llvm/lib/Target/PTX/PTXISelLowering.cpp
@@ -0,0 +1,62 @@
+//===-- PTXISelLowering.cpp - PTX DAG Lowering Implementation -------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the PTXTargetLowering class.
+//
+//===----------------------------------------------------------------------===//
+
+#include "PTXISelLowering.h"
+#include "PTXRegisterInfo.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/CodeGen/SelectionDAG.h"
+#include "llvm/CodeGen/TargetLoweringObjectFileImpl.h"
+
+using namespace llvm;
+
+PTXTargetLowering::PTXTargetLowering(TargetMachine &TM)
+  : TargetLowering(TM, new TargetLoweringObjectFileELF()) {
+  // Set up the register classes.
+  addRegisterClass(MVT::i1, PTX::PredsRegisterClass);
+
+  // Compute derived properties from the register classes
+  computeRegisterProperties();
+}
+
+const char *PTXTargetLowering::getTargetNodeName(unsigned Opcode) const {
+  switch (Opcode) {
+    default:           llvm_unreachable("Unknown opcode");
+    case PTXISD::EXIT: return "PTXISD::EXIT";
+  }
+}
+
+//===----------------------------------------------------------------------===//
+//                      Calling Convention Implementation
+//===----------------------------------------------------------------------===//
+
+SDValue PTXTargetLowering::
+  LowerFormalArguments(SDValue Chain,
+                       CallingConv::ID CallConv,
+                       bool isVarArg,
+                       const SmallVectorImpl<ISD::InputArg> &Ins,
+                       DebugLoc dl,
+                       SelectionDAG &DAG,
+                       SmallVectorImpl<SDValue> &InVals) const {
+  return Chain;
+}
+
+SDValue PTXTargetLowering::
+  LowerReturn(SDValue Chain,
+              CallingConv::ID CallConv,
+              bool isVarArg,
+              const SmallVectorImpl<ISD::OutputArg> &Outs,
+              const SmallVectorImpl<SDValue> &OutVals,
+              DebugLoc dl,
+              SelectionDAG &DAG) const {
+  return DAG.getNode(PTXISD::EXIT, dl, MVT::Other, Chain);
+}