PowerPC 32-/64-bit split: Part I, PPC32* bit files, adapted from former PowerPC*

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15850 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 56 insertions, 0 deletions

diff --git a/lib/Target/PowerPC/PPCRegisterInfo.h b/lib/Target/PowerPC/PPCRegisterInfo.h
new file mode 100644
index 0000000000..e3750481d7
--- /dev/null
+++ b/lib/Target/PowerPC/PPCRegisterInfo.h
@@ -0,0 +1,56 @@
+//===- PPC32RegisterInfo.h - PowerPC32 Register Information Impl -*- C++ -*-==//
+// 
+//                     The LLVM Compiler Infrastructure
+//
+// This file was developed by the LLVM research group and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// 
+//===----------------------------------------------------------------------===//
+//
+// This file contains the PowerPC implementation of the MRegisterInfo class.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef POWERPC32_REGISTERINFO_H
+#define POWERPC32_REGISTERINFO_H
+
+#include "PowerPC.h"
+#include "PPC32GenRegisterInfo.h.inc"
+#include <map>
+
+namespace llvm {
+
+class Type;
+
+class PPC32RegisterInfo : public PPC32GenRegisterInfo {
+  std::map<unsigned, unsigned> ImmToIdxMap;
+public:
+  PPC32RegisterInfo();
+  const TargetRegisterClass* getRegClassForType(const Type* Ty) const;
+
+  /// Code Generation virtual methods...
+  void storeRegToStackSlot(MachineBasicBlock &MBB,
+                           MachineBasicBlock::iterator MBBI,
+                           unsigned SrcReg, int FrameIndex) const;
+
+  void loadRegFromStackSlot(MachineBasicBlock &MBB,
+                            MachineBasicBlock::iterator MBBI,
+                            unsigned DestReg, int FrameIndex) const;
+  
+  void copyRegToReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI,
+                    unsigned DestReg, unsigned SrcReg,
+                    const TargetRegisterClass *RC) const;
+
+  void eliminateCallFramePseudoInstr(MachineFunction &MF,
+                                     MachineBasicBlock &MBB,
+                                     MachineBasicBlock::iterator I) const;
+
+  void eliminateFrameIndex(MachineBasicBlock::iterator II) const;
+
+  void emitPrologue(MachineFunction &MF) const;
+  void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
+};
+
+} // end namespace llvm
+
+#endif