Merging r261039:

[oota-llvm.git] / lib / Target / Mips / MipsMachineFunction.h

diff --git a/lib/Target/Mips/MipsMachineFunction.h b/lib/Target/Mips/MipsMachineFunction.h
index 1b3e0a3a8e92e010f29052bc52e532764454445e..a2f6ee03604fc0fa24d8aaa5c5f62d7c001cb20d 100644 (file)
--- a/lib/Target/Mips/MipsMachineFunction.h
+++ b/lib/Target/Mips/MipsMachineFunction.h
@@ -11,14 +11,19 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef MIPS_MACHINE_FUNCTION_INFO_H
-#define MIPS_MACHINE_FUNCTION_INFO_H
+#ifndef LLVM_LIB_TARGET_MIPS_MIPSMACHINEFUNCTION_H
+#define LLVM_LIB_TARGET_MIPS_MIPSMACHINEFUNCTION_H
 
-#include "MipsSubtarget.h"
-#include "llvm/CodeGen/MachineFunction.h"
+#include "Mips16HardFloatInfo.h"
 #include "llvm/CodeGen/MachineFrameInfo.h"
+#include "llvm/CodeGen/MachineFunction.h"
+#include "llvm/CodeGen/MachineMemOperand.h"
+#include "llvm/CodeGen/PseudoSourceValue.h"
+#include "llvm/IR/ValueMap.h"
 #include "llvm/Target/TargetFrameLowering.h"
 #include "llvm/Target/TargetMachine.h"
+#include <map>
+#include <string>
 #include <utility>
 
 namespace llvm {
@@ -26,6 +31,66 @@ namespace llvm {
 /// MipsFunctionInfo - This class is derived from MachineFunction private
 /// Mips target-specific information for each MachineFunction.
 class MipsFunctionInfo : public MachineFunctionInfo {
+public:
+  MipsFunctionInfo(MachineFunction &MF)
+      : MF(MF), SRetReturnReg(0), GlobalBaseReg(0), Mips16SPAliasReg(0),
+        VarArgsFrameIndex(0), CallsEhReturn(false), IsISR(false), SaveS2(false),
+        MoveF64ViaSpillFI(-1) {}
+
+  ~MipsFunctionInfo();
+
+  unsigned getSRetReturnReg() const { return SRetReturnReg; }
+  void setSRetReturnReg(unsigned Reg) { SRetReturnReg = Reg; }
+
+  bool globalBaseRegSet() const;
+  unsigned getGlobalBaseReg();
+
+  bool mips16SPAliasRegSet() const;
+  unsigned getMips16SPAliasReg();
+
+  int getVarArgsFrameIndex() const { return VarArgsFrameIndex; }
+  void setVarArgsFrameIndex(int Index) { VarArgsFrameIndex = Index; }
+
+  bool hasByvalArg() const { return HasByvalArg; }
+  void setFormalArgInfo(unsigned Size, bool HasByval) {
+    IncomingArgSize = Size;
+    HasByvalArg = HasByval;
+  }
+
+  unsigned getIncomingArgSize() const { return IncomingArgSize; }
+
+  bool callsEhReturn() const { return CallsEhReturn; }
+  void setCallsEhReturn() { CallsEhReturn = true; }
+
+  void createEhDataRegsFI();
+  int getEhDataRegFI(unsigned Reg) const { return EhDataRegFI[Reg]; }
+  bool isEhDataRegFI(int FI) const;
+
+  /// Create a MachinePointerInfo that has an ExternalSymbolPseudoSourceValue
+  /// object representing a GOT entry for an external function.
+  MachinePointerInfo callPtrInfo(const char *ES);
+
+  // Functions with the "interrupt" attribute require special prologues,
+  // epilogues and additional spill slots.
+  bool isISR() const { return IsISR; }
+  void setISR() { IsISR = true; }
+  void createISRRegFI();
+  int getISRRegFI(unsigned Reg) const { return ISRDataRegFI[Reg]; }
+  bool isISRRegFI(int FI) const;
+
+  /// Create a MachinePointerInfo that has a GlobalValuePseudoSourceValue object
+  /// representing a GOT entry for a global function.
+  MachinePointerInfo callPtrInfo(const GlobalValue *GV);
+
+  void setSaveS2() { SaveS2 = true; }
+  bool hasSaveS2() const { return SaveS2; }
+
+  int getMoveF64ViaSpillFI(const TargetRegisterClass *RC);
+
+  std::map<const char *, const llvm::Mips16HardFloatInfo::FuncSignature *>
+  StubsNeeded;
+
+private:
   virtual void anchor();
 
   MachineFunction& MF;
@@ -47,36 +112,32 @@ class MipsFunctionInfo : public MachineFunctionInfo {
   /// VarArgsFrameIndex - FrameIndex for start of varargs area.
   int VarArgsFrameIndex;
 
-  // Formal argument information obtained during call to LowerFormalArguments.
-  unsigned NextStackOffset;
+  /// True if function has a byval argument.
   bool HasByvalArg;
 
-public:
-  MipsFunctionInfo(MachineFunction& MF)
-   : MF(MF), SRetReturnReg(0), GlobalBaseReg(0), Mips16SPAliasReg(0),
-     VarArgsFrameIndex(0)
-  {}
+  /// Size of incoming argument area.
+  unsigned IncomingArgSize;
 
-  unsigned getSRetReturnReg() const { return SRetReturnReg; }
-  void setSRetReturnReg(unsigned Reg) { SRetReturnReg = Reg; }
+  /// CallsEhReturn - Whether the function calls llvm.eh.return.
+  bool CallsEhReturn;
 
-  bool globalBaseRegSet() const;
-  unsigned getGlobalBaseReg();
+  /// Frame objects for spilling eh data registers.
+  int EhDataRegFI[4];
 
-  bool mips16SPAliasRegSet() const;
-  unsigned getMips16SPAliasReg();
+  /// ISR - Whether the function is an Interrupt Service Routine.
+  bool IsISR;
 
-  int getVarArgsFrameIndex() const { return VarArgsFrameIndex; }
-  void setVarArgsFrameIndex(int Index) { VarArgsFrameIndex = Index; }
+  /// Frame objects for spilling C0_STATUS, C0_EPC
+  int ISRDataRegFI[2];
 
-  unsigned nextStackOffset() const { return NextStackOffset; }
-  bool hasByvalArg() const { return HasByvalArg; }
-  void setFormalArgInfo(unsigned Offset, bool HasByval) {
-    NextStackOffset = Offset;
-    HasByvalArg = HasByval;
-  }
+  // saveS2
+  bool SaveS2;
+
+  /// FrameIndex for expanding BuildPairF64 nodes to spill and reload when the
+  /// O32 FPXX ABI is enabled. -1 is used to denote invalid index.
+  int MoveF64ViaSpillFI;
 };
 
 } // end of namespace llvm
 
-#endif // MIPS_MACHINE_FUNCTION_INFO_H
+#endif