[AVR] Add instruction selection lowering code

Summary: This adds AVRISelLowering.cpp

Reviewers: kparzysz, arsenm

Subscribers: wdng, beanz, mgorny

Differential Revision: https://reviews.llvm.org/D25034

llvm-svn: 282711

1 files changed, 13 insertions, 2 deletions

diff --git a/llvm/lib/Target/AVR/AVRISelLowering.h b/llvm/lib/Target/AVR/AVRISelLowering.h
index 2c8c9c88b6d..17074e1b1ee 100644
--- a/llvm/lib/Target/AVR/AVRISelLowering.h
+++ b/llvm/lib/Target/AVR/AVRISelLowering.h
@@ -15,6 +15,7 @@
 #ifndef LLVM_AVR_ISEL_LOWERING_H
 #define LLVM_AVR_ISEL_LOWERING_H
 
+#include "llvm/CodeGen/CallingConvLower.h"
 #include "llvm/Target/TargetLowering.h"
 
 namespace llvm {
@@ -92,6 +93,9 @@ public:
 
   bool isOffsetFoldingLegal(const GlobalAddressSDNode *GA) const override;
 
+  EVT getSetCCResultType(const DataLayout &DL, LLVMContext &Context,
+                         EVT VT) const override;
+
   MachineBasicBlock *
   EmitInstrWithCustomInserter(MachineInstr &MI,
                               MachineBasicBlock *MBB) const override;
@@ -125,6 +129,13 @@ private:
   SDValue LowerSETCC(SDValue Op, SelectionDAG &DAG) const;
   SDValue LowerVASTART(SDValue Op, SelectionDAG &DAG) const;
 
+  CCAssignFn *CCAssignFnForReturn(CallingConv::ID CC) const;
+
+  bool CanLowerReturn(CallingConv::ID CallConv,
+                      MachineFunction &MF, bool isVarArg,
+                      const SmallVectorImpl<ISD::OutputArg> &Outs,
+                      LLVMContext &Context) const override;
+
   SDValue LowerReturn(SDValue Chain, CallingConv::ID CallConv, bool isVarArg,
                       const SmallVectorImpl<ISD::OutputArg> &Outs,
                       const SmallVectorImpl<SDValue> &OutVals, const SDLoc &dl,
@@ -143,8 +154,8 @@ private:
                           SmallVectorImpl<SDValue> &InVals) const;
 
 private:
-  MachineBasicBlock *insertShift(MachineInstr *MI, MachineBasicBlock *BB) const;
-  MachineBasicBlock *insertMul(MachineInstr *MI, MachineBasicBlock *BB) const;
+  MachineBasicBlock *insertShift(MachineInstr &MI, MachineBasicBlock *BB) const;
+  MachineBasicBlock *insertMul(MachineInstr &MI, MachineBasicBlock *BB) const;
 };
 
 } // end namespace llvm