Add the exit instruction to the PTX target.
Patch by Che-Liang Chiou <clchiou@gmail.com>!
llvm-svn: 114294
diff --git a/llvm/lib/Target/PTX/PTXISelLowering.cpp b/llvm/lib/Target/PTX/PTXISelLowering.cpp
new file mode 100644
index 0000000..9d7e344
--- /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);
+}