Move per-function state out of TargetLowering subclasses and into

MachineFunctionInfo subclasses.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101634 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 52 insertions, 0 deletions

diff --git a/lib/Target/PIC16/PIC16MachineFunctionInfo.h b/lib/Target/PIC16/PIC16MachineFunctionInfo.h
new file mode 100644
index 0000000000..bdf50867f2
--- /dev/null
+++ b/lib/Target/PIC16/PIC16MachineFunctionInfo.h
@@ -0,0 +1,52 @@
+//====- PIC16MachineFuctionInfo.h - PIC16 machine function info -*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file declares PIC16-specific per-machine-function information.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef PIC16MACHINEFUNCTIONINFO_H
+#define PIC16MACHINEFUNCTIONINFO_H
+
+#include "llvm/CodeGen/MachineFunction.h"
+
+namespace llvm {
+
+/// PIC16MachineFunctionInfo - This class is derived from MachineFunction
+/// private PIC16 target-specific information for each MachineFunction.
+class PIC16MachineFunctionInfo : public MachineFunctionInfo {
+  // The frameindexes generated for spill/reload are stack based.
+  // This maps maintain zero based indexes for these FIs.
+  std::map<unsigned, unsigned> FiTmpOffsetMap;
+  unsigned TmpSize;
+
+  // These are the frames for return value and argument passing 
+  // These FrameIndices will be expanded to foo.frame external symbol
+  // and all others will be expanded to foo.tmp external symbol.
+  unsigned ReservedFrameCount;
+
+public:
+  PIC16MachineFunctionInfo()
+    : TmpSize(0), ReservedFrameCount(0) {}
+
+  explicit PIC16MachineFunctionInfo(MachineFunction &MF)
+    : TmpSize(0), ReservedFrameCount(0) {}
+
+  std::map<unsigned, unsigned> &getFiTmpOffsetMap() { return FiTmpOffsetMap; }
+
+  unsigned getTmpSize() const { return TmpSize; }
+  void setTmpSize(unsigned Size) { TmpSize = Size; }
+
+  unsigned getReservedFrameCount() const { return ReservedFrameCount; }
+  void setReservedFrameCount(unsigned Count) { ReservedFrameCount = Count; }
+};
+
+} // End llvm namespace
+
+#endif