#ifndef MIPS_MACHINE_FUNCTION_INFO_H
#define MIPS_MACHINE_FUNCTION_INFO_H
-#include <utility>
-#include "llvm/ADT/SmallVector.h"
-#include "llvm/ADT/VectorExtras.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 {
/// MipsFunctionInfo - This class is derived from MachineFunction private
/// Mips target-specific information for each MachineFunction.
class MipsFunctionInfo : public MachineFunctionInfo {
+ virtual void anchor();
-private:
+ MachineFunction& MF;
/// SRetReturnReg - Some subtargets require that sret lowering includes
/// returning the value of the returned struct in a register. This field
/// holds the virtual register into which the sret argument is passed.
// 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.
+ // 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;
- /// AtomicFrameIndex - To implement atomic.swap and atomic.cmp.swap
- /// intrinsics, it is necessary to use a temporary stack location.
- /// This field holds the frame index of this location.
- int AtomicFrameIndex;
+ bool EmitNOAT;
+
public:
MipsFunctionInfo(MachineFunction& MF)
- : SRetReturnReg(0), GlobalBaseReg(0),
+ : MF(MF), SRetReturnReg(0), GlobalBaseReg(0),
VarArgsFrameIndex(0), InArgFIRange(std::make_pair(-1, 0)),
- OutArgFIRange(std::make_pair(-1, 0)), GPFI(0), MaxCallFrameSize(0),
- AtomicFrameIndex(-1)
+ OutArgFIRange(std::make_pair(-1, 0)), GlobalRegFI(0), DynAllocFI(0),
+ MaxCallFrameSize(0), EmitNOAT(false)
{}
bool isInArgFI(int FI) const {
}
void setLastInArgFI(int FI) { InArgFIRange.second = FI; }
- bool isOutArgFI(int FI) const {
+ bool isOutArgFI(int FI) const {
return FI <= OutArgFIRange.first && FI >= OutArgFIRange.second;
}
void extendOutArgFIRange(int FirstFI, int LastFI) {
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.
+ int getDynAllocFI() const {
+ if (!DynAllocFI)
+ DynAllocFI = MF.getFrameInfo()->CreateFixedObject(4, 0, true);
+
+ return DynAllocFI;
+ }
+ bool isDynAllocFI(int FI) const { return DynAllocFI && DynAllocFI == FI; }
unsigned getSRetReturnReg() const { return SRetReturnReg; }
void setSRetReturnReg(unsigned Reg) { SRetReturnReg = Reg; }
- unsigned getGlobalBaseReg() const { return GlobalBaseReg; }
- void setGlobalBaseReg(unsigned Reg) { GlobalBaseReg = Reg; }
+ bool globalBaseRegSet() const;
+ unsigned getGlobalBaseReg();
int getVarArgsFrameIndex() const { return VarArgsFrameIndex; }
void setVarArgsFrameIndex(int Index) { VarArgsFrameIndex = Index; }
unsigned getMaxCallFrameSize() const { return MaxCallFrameSize; }
void setMaxCallFrameSize(unsigned S) { MaxCallFrameSize = S; }
- int getAtomicFrameIndex() const { return AtomicFrameIndex; }
- void setAtomicFrameIndex(int Index) { AtomicFrameIndex = Index; }
+ bool getEmitNOAT() const { return EmitNOAT; }
+ void setEmitNOAT() { EmitNOAT = true; }
};
} // end of namespace llvm