#ifndef MIPS_MACHINE_FUNCTION_INFO_H
#define MIPS_MACHINE_FUNCTION_INFO_H
-#include <utility>
-#include "llvm/ADT/SmallVector.h"
-#include "llvm/CodeGen/MachineFunction.h"
+#include "MipsSubtarget.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
+#include "llvm/CodeGen/MachineFunction.h"
+#include "llvm/Target/TargetFrameLowering.h"
+#include "llvm/Target/TargetMachine.h"
+#include <utility>
namespace llvm {
/// relocation models.
unsigned GlobalBaseReg;
+ /// Mips16SPAliasReg - keeps track of the virtual register initialized for
+ /// use as an alias for SP for use in load/store of halfword/byte from/to
+ /// the stack
+ unsigned Mips16SPAliasReg;
+
/// VarArgsFrameIndex - FrameIndex for start of varargs area.
int VarArgsFrameIndex;
- // Range of frame object indices.
- // InArgFIRange: Range of indices of all frame objects created during call to
- // LowerFormalArguments.
- // OutArgFIRange: Range of indices of all frame objects created during call to
- // LowerCall except for the frame object for restoring $gp.
- std::pair<int, int> InArgFIRange, OutArgFIRange;
- int GPFI; // Index of the frame object for restoring $gp
- mutable int DynAllocFI; // Frame index of dynamically allocated stack area.
- unsigned MaxCallFrameSize;
+ /// True if function has a byval argument.
+ bool HasByvalArg;
+
+ /// Size of incoming argument area.
+ unsigned IncomingArgSize;
+
+ /// CallsEhReturn - Whether the function calls llvm.eh.return.
+ bool CallsEhReturn;
+
+ /// Frame objects for spilling eh data registers.
+ int EhDataRegFI[4];
public:
MipsFunctionInfo(MachineFunction& MF)
- : MF(MF), SRetReturnReg(0), GlobalBaseReg(0),
- VarArgsFrameIndex(0), InArgFIRange(std::make_pair(-1, 0)),
- OutArgFIRange(std::make_pair(-1, 0)), GPFI(0), DynAllocFI(0),
- MaxCallFrameSize(0)
+ : MF(MF), SRetReturnReg(0), GlobalBaseReg(0), Mips16SPAliasReg(0),
+ VarArgsFrameIndex(0), CallsEhReturn(false)
{}
- bool isInArgFI(int FI) const {
- return FI <= InArgFIRange.first && FI >= InArgFIRange.second;
- }
- void setLastInArgFI(int FI) { InArgFIRange.second = FI; }
+ unsigned getSRetReturnReg() const { return SRetReturnReg; }
+ void setSRetReturnReg(unsigned Reg) { SRetReturnReg = Reg; }
- bool isOutArgFI(int FI) const {
- return FI <= OutArgFIRange.first && FI >= OutArgFIRange.second;
- }
- void extendOutArgFIRange(int FirstFI, int LastFI) {
- if (!OutArgFIRange.second)
- // this must be the first time this function was called.
- OutArgFIRange.first = FirstFI;
- OutArgFIRange.second = LastFI;
- }
+ bool globalBaseRegSet() const;
+ unsigned getGlobalBaseReg();
- int getGPFI() const { return GPFI; }
- void setGPFI(int FI) { GPFI = FI; }
- bool needGPSaveRestore() const { return getGPFI(); }
- bool isGPFI(int FI) const { return GPFI && GPFI == FI; }
+ bool mips16SPAliasRegSet() const;
+ unsigned getMips16SPAliasReg();
- // The first call to this function creates a frame object for dynamically
- // allocated stack area.
- int getDynAllocFI() const {
- if (!DynAllocFI)
- DynAllocFI = MF.getFrameInfo()->CreateFixedObject(4, 0, true);
+ int getVarArgsFrameIndex() const { return VarArgsFrameIndex; }
+ void setVarArgsFrameIndex(int Index) { VarArgsFrameIndex = Index; }
- return DynAllocFI;
+ bool hasByvalArg() const { return HasByvalArg; }
+ void setFormalArgInfo(unsigned Size, bool HasByval) {
+ IncomingArgSize = Size;
+ HasByvalArg = HasByval;
}
- bool isDynAllocFI(int FI) const { return DynAllocFI && DynAllocFI == FI; }
- unsigned getSRetReturnReg() const { return SRetReturnReg; }
- void setSRetReturnReg(unsigned Reg) { SRetReturnReg = Reg; }
+ unsigned getIncomingArgSize() const { return IncomingArgSize; }
- unsigned getGlobalBaseReg() const { return GlobalBaseReg; }
- void setGlobalBaseReg(unsigned Reg) { GlobalBaseReg = Reg; }
+ bool callsEhReturn() const { return CallsEhReturn; }
+ void setCallsEhReturn() { CallsEhReturn = true; }
- int getVarArgsFrameIndex() const { return VarArgsFrameIndex; }
- void setVarArgsFrameIndex(int Index) { VarArgsFrameIndex = Index; }
+ void createEhDataRegsFI();
+ int getEhDataRegFI(unsigned Reg) const { return EhDataRegFI[Reg]; }
+ bool isEhDataRegFI(int FI) const;
- unsigned getMaxCallFrameSize() const { return MaxCallFrameSize; }
- void setMaxCallFrameSize(unsigned S) { MaxCallFrameSize = S; }
};
} // end of namespace llvm