Dummy MSP430 backend
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70694 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/MSP430/MSP430ISelLowering.cpp b/lib/Target/MSP430/MSP430ISelLowering.cpp
new file mode 100644
index 0000000..99a5673
--- /dev/null
+++ b/lib/Target/MSP430/MSP430ISelLowering.cpp
@@ -0,0 +1,56 @@
+//===-- MSP430ISelLowering.cpp - MSP430 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 MSP430TargetLowering class.
+//
+//===----------------------------------------------------------------------===//
+
+#define DEBUG_TYPE "msp430-lower"
+
+#include "MSP430ISelLowering.h"
+#include "MSP430.h"
+#include "MSP430TargetMachine.h"
+#include "MSP430Subtarget.h"
+#include "llvm/DerivedTypes.h"
+#include "llvm/Function.h"
+#include "llvm/Intrinsics.h"
+#include "llvm/CallingConv.h"
+#include "llvm/GlobalVariable.h"
+#include "llvm/GlobalAlias.h"
+#include "llvm/CodeGen/CallingConvLower.h"
+#include "llvm/CodeGen/MachineFrameInfo.h"
+#include "llvm/CodeGen/MachineFunction.h"
+#include "llvm/CodeGen/MachineInstrBuilder.h"
+#include "llvm/CodeGen/MachineRegisterInfo.h"
+#include "llvm/CodeGen/SelectionDAGISel.h"
+#include "llvm/CodeGen/ValueTypes.h"
+#include "llvm/Support/Debug.h"
+#include "llvm/ADT/VectorExtras.h"
+using namespace llvm;
+
+MSP430TargetLowering::MSP430TargetLowering(MSP430TargetMachine &tm) :
+ TargetLowering(tm), Subtarget(*tm.getSubtargetImpl()), TM(tm) {
+
+ // Set up the register classes.
+ addRegisterClass(MVT::i16, MSP430::MSP430RegsRegisterClass);
+
+ // Compute derived properties from the register classes
+ computeRegisterProperties();
+}
+
+SDValue MSP430TargetLowering::
+LowerOperation(SDValue Op, SelectionDAG &DAG) {
+ switch (Op.getOpcode()) {
+ default:
+ assert(0 && "unimplemented operand");
+ return SDValue();
+ }
+}
+
+#include "MSP430GenCallingConv.inc"