Rename TargetFrameInfo into TargetFrameLowering. Also, put couple of FIXMEs and fixes here and there.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123170 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/SystemZ/SystemZFrameLowering.h b/lib/Target/SystemZ/SystemZFrameLowering.h
new file mode 100644
index 0000000..1284b68
--- /dev/null
+++ b/lib/Target/SystemZ/SystemZFrameLowering.h
@@ -0,0 +1,57 @@
+//=- SystemZFrameLowering.h - Define frame lowering for z/System -*- C++ -*--=//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+//
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef SYSTEMZ_FRAMEINFO_H
+#define SYSTEMZ_FRAMEINFO_H
+
+#include "SystemZ.h"
+#include "SystemZSubtarget.h"
+#include "llvm/Target/TargetFrameLowering.h"
+#include "llvm/ADT/IndexedMap.h"
+
+namespace llvm {
+ class SystemZSubtarget;
+
+class SystemZFrameLowering : public TargetFrameLowering {
+ IndexedMap<unsigned> RegSpillOffsets;
+protected:
+ const SystemZSubtarget &STI;
+
+public:
+ explicit SystemZFrameLowering(const SystemZSubtarget &sti);
+
+ /// emitProlog/emitEpilog - These methods insert prolog and epilog code into
+ /// the function.
+ void emitPrologue(MachineFunction &MF) const;
+ void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
+
+ bool spillCalleeSavedRegisters(MachineBasicBlock &MBB,
+ MachineBasicBlock::iterator MI,
+ const std::vector<CalleeSavedInfo> &CSI,
+ const TargetRegisterInfo *TRI) const;
+ bool restoreCalleeSavedRegisters(MachineBasicBlock &MBB,
+ MachineBasicBlock::iterator MI,
+ const std::vector<CalleeSavedInfo> &CSI,
+ const TargetRegisterInfo *TRI) const;
+
+ void processFunctionBeforeCalleeSavedScan(MachineFunction &MF,
+ RegScavenger *RS) const;
+
+ bool hasReservedCallFrame(const MachineFunction &MF) const { return true; }
+ bool hasFP(const MachineFunction &MF) const;
+ int getFrameIndexOffset(const MachineFunction &MF, int FI) const;
+};
+
+} // End llvm namespace
+
+#endif