#ifndef MIPS_MACHINE_FUNCTION_INFO_H
#define MIPS_MACHINE_FUNCTION_INFO_H
+#include "MipsSubtarget.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
+#include "llvm/Target/TargetFrameLowering.h"
+#include "llvm/Target/TargetMachine.h"
#include <utility>
namespace llvm {
// 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
+ int GlobalRegFI;
mutable int DynAllocFI; // Frame index of dynamically allocated stack area.
unsigned MaxCallFrameSize;
+ bool EmitNOAT;
+
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)
+ OutArgFIRange(std::make_pair(-1, 0)), GlobalRegFI(0), DynAllocFI(0),
+ MaxCallFrameSize(0), EmitNOAT(false)
{}
bool isInArgFI(int FI) const {
OutArgFIRange.second = LastFI;
}
- 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 isGlobalRegFI(int FI) const {
+ return GlobalRegFI && (FI == GlobalRegFI);
+ }
+
+ int getGlobalRegFI() const {
+ return GlobalRegFI;
+ }
+
+ int initGlobalRegFI() {
+ const TargetMachine &TM = MF.getTarget();
+ unsigned RegSize = TM.getSubtarget<MipsSubtarget>().isABI_N64() ? 8 : 4;
+ int64_t StackAlignment = TM.getFrameLowering()->getStackAlignment();
+ uint64_t Offset = RoundUpToAlignment(MaxCallFrameSize, StackAlignment);
+
+ GlobalRegFI = MF.getFrameInfo()->CreateFixedObject(RegSize, Offset, true);
+ return GlobalRegFI;
+ }
// The first call to this function creates a frame object for dynamically
// allocated stack area.
unsigned getSRetReturnReg() const { return SRetReturnReg; }
void setSRetReturnReg(unsigned Reg) { SRetReturnReg = Reg; }
- bool globalBaseRegFixed() const;
bool globalBaseRegSet() const;
unsigned getGlobalBaseReg();
unsigned getMaxCallFrameSize() const { return MaxCallFrameSize; }
void setMaxCallFrameSize(unsigned S) { MaxCallFrameSize = S; }
+
+ bool getEmitNOAT() const { return EmitNOAT; }
+ void setEmitNOAT() { EmitNOAT = true; }
};
} // end of namespace llvm