Updating branches/google/stable to r178511stable

git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/google/stable@178655 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 57 insertions, 0 deletions

diff --git a/lib/Target/Mips/MipsSEISelDAGToDAG.h b/lib/Target/Mips/MipsSEISelDAGToDAG.h
new file mode 100644
index 0000000000..6137ab040b
--- /dev/null
+++ b/lib/Target/Mips/MipsSEISelDAGToDAG.h
@@ -0,0 +1,57 @@
+//===-- MipsSEISelDAGToDAG.h - A Dag to Dag Inst Selector for MipsSE -----===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// Subclass of MipsDAGToDAGISel specialized for mips32/64.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef MIPSSEISELDAGTODAG_H
+#define MIPSSEISELDAGTODAG_H
+
+#include "MipsISelDAGToDAG.h"
+
+namespace llvm {
+
+class MipsSEDAGToDAGISel : public MipsDAGToDAGISel {
+
+public:
+  explicit MipsSEDAGToDAGISel(MipsTargetMachine &TM) : MipsDAGToDAGISel(TM) {}
+
+private:
+  bool replaceUsesWithZeroReg(MachineRegisterInfo *MRI, const MachineInstr&);
+
+  std::pair<SDNode*, SDNode*> selectMULT(SDNode *N, unsigned Opc, DebugLoc dl,
+                                         EVT Ty, bool HasLo, bool HasHi);
+
+  SDNode *selectAddESubE(unsigned MOp, SDValue InFlag, SDValue CmpLHS,
+                         DebugLoc DL, SDNode *Node) const;
+
+  virtual bool selectAddrRegImm(SDValue Addr, SDValue &Base,
+                                SDValue &Offset) const;
+
+  virtual bool selectAddrDefault(SDValue Addr, SDValue &Base,
+                                 SDValue &Offset) const;
+
+  virtual bool selectIntAddr(SDValue Addr, SDValue &Base,
+                             SDValue &Offset) const;
+
+  virtual std::pair<bool, SDNode*> selectNode(SDNode *Node);
+
+  virtual void processFunctionAfterISel(MachineFunction &MF);
+
+  // Insert instructions to initialize the global base register in the
+  // first MBB of the function.
+  void initGlobalBaseReg(MachineFunction &MF);
+};
+
+FunctionPass *createMipsSEISelDag(MipsTargetMachine &TM);
+
+}
+
+#endif