1 files changed, 82 insertions, 0 deletions
diff --git a/lib/Target/SystemZ/SystemZRegisterInfo.h b/lib/Target/SystemZ/SystemZRegisterInfo.h
new file mode 100644
index 0000000..b22b05d
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+++ b/lib/Target/SystemZ/SystemZRegisterInfo.h
@@ -0,0 +1,82 @@
+//===- SystemZRegisterInfo.h - SystemZ Register Information Impl ----*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file contains the SystemZ implementation of the TargetRegisterInfo class.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef SystemZREGISTERINFO_H
+#define SystemZREGISTERINFO_H
+
+#include "llvm/Target/TargetRegisterInfo.h"
+#include "SystemZGenRegisterInfo.h.inc"
+
+namespace llvm {
+
+namespace SystemZ {
+  /// SubregIndex - The index of various sized subregister classes. Note that
+  /// these indices must be kept in sync with the class indices in the
+  /// SystemZRegisterInfo.td file.
+  enum SubregIndex {
+    SUBREG_32BIT = 1, SUBREG_EVEN = 1, SUBREG_ODD = 2
+  };
+}
+
+class SystemZSubtarget;
+class SystemZInstrInfo;
+class Type;
+
+struct SystemZRegisterInfo : public SystemZGenRegisterInfo {
+  SystemZTargetMachine &TM;
+  const SystemZInstrInfo &TII;
+
+  SystemZRegisterInfo(SystemZTargetMachine &tm, const SystemZInstrInfo &tii);
+
+  /// Code Generation virtual methods...
+  const unsigned *getCalleeSavedRegs(const MachineFunction *MF = 0) const;
+
+  const TargetRegisterClass* const* getCalleeSavedRegClasses(
+                                     const MachineFunction *MF = 0) const;
+
+  BitVector getReservedRegs(const MachineFunction &MF) const;
+
+  bool hasReservedCallFrame(MachineFunction &MF) const { return true; }
+  bool hasFP(const MachineFunction &MF) const;
+
+  int getFrameIndexOffset(MachineFunction &MF, int FI) const;
+
+  void eliminateCallFramePseudoInstr(MachineFunction &MF,
+                                     MachineBasicBlock &MBB,
+                                     MachineBasicBlock::iterator I) const;
+
+  unsigned eliminateFrameIndex(MachineBasicBlock::iterator II,
+                               int SPAdj, int *Value = NULL,
+                               RegScavenger *RS = NULL) const;
+
+
+  void processFunctionBeforeCalleeSavedScan(MachineFunction &MF,
+                                            RegScavenger *RS) const;
+
+  void emitPrologue(MachineFunction &MF) const;
+  void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
+
+  // Debug information queries.
+  unsigned getRARegister() const;
+  unsigned getFrameRegister(MachineFunction &MF) const;
+
+  // Exception handling queries.
+  unsigned getEHExceptionRegister() const;
+  unsigned getEHHandlerRegister() const;
+
+  int getDwarfRegNum(unsigned RegNum, bool isEH) const;
+};
+
+} // end namespace llvm
+
+#endif