unsigned OpNo, int FrameIndex,
uint64_t StackSize,
int64_t SPOffset) const {
- MachineInstr &MI = *II;
- MachineFunction &MF = *MI.getParent()->getParent();
- MachineFrameInfo *MFI = MF.getFrameInfo();
+ MachineInstr &MI = *II;
+ MachineFunction &MF = *MI.getParent()->getParent();
+ MachineFrameInfo *MFI = MF.getFrameInfo();
- const std::vector<CalleeSavedInfo> &CSI = MFI->getCalleeSavedInfo();
- int MinCSFI = 0;
- int MaxCSFI = -1;
+ const std::vector<CalleeSavedInfo> &CSI = MFI->getCalleeSavedInfo();
+ int MinCSFI = 0;
+ int MaxCSFI = -1;
- if (CSI.size()) {
- MinCSFI = CSI[0].getFrameIdx();
- MaxCSFI = CSI[CSI.size() - 1].getFrameIdx();
- }
+ if (CSI.size()) {
+ MinCSFI = CSI[0].getFrameIdx();
+ MaxCSFI = CSI[CSI.size() - 1].getFrameIdx();
+ }
- // The following stack frame objects are always
- // referenced relative to $sp:
- // 1. Outgoing arguments.
- // 2. Pointer to dynamically allocated stack space.
- // 3. Locations for callee-saved registers.
- // Everything else is referenced relative to whatever register
- // getFrameRegister() returns.
- unsigned FrameReg;
+ // The following stack frame objects are always
+ // referenced relative to $sp:
+ // 1. Outgoing arguments.
+ // 2. Pointer to dynamically allocated stack space.
+ // 3. Locations for callee-saved registers.
+ // Everything else is referenced relative to whatever register
+ // getFrameRegister() returns.
+ unsigned FrameReg;
- if (FrameIndex >= MinCSFI && FrameIndex <= MaxCSFI)
- FrameReg = Subtarget.isABI_N64() ? Mips::SP_64 : Mips::SP;
+ if (FrameIndex >= MinCSFI && FrameIndex <= MaxCSFI)
+ FrameReg = Mips::SP;
+ else {
+ const TargetFrameLowering *TFI = MF.getTarget().getFrameLowering();
+ if (TFI->hasFP(MF)) {
+ FrameReg = Mips::S0;
+ }
+ else {
+ if ((MI.getNumOperands()> OpNo+2) && MI.getOperand(OpNo+2).isReg())
+ FrameReg = MI.getOperand(OpNo+2).getReg();
else
- FrameReg = getFrameRegister(MF);
+ FrameReg = Mips::SP;
+ }
+ }
+ // Calculate final offset.
+ // - There is no need to change the offset if the frame object
+ // is one of the
+ // following: an outgoing argument, pointer to a dynamically allocated
+ // stack space or a $gp restore location,
+ // - If the frame object is any of the following,
+ // its offset must be adjusted
+ // by adding the size of the stack:
+ // incoming argument, callee-saved register location or local variable.
+ int64_t Offset;
+ Offset = SPOffset + (int64_t)StackSize;
+ Offset += MI.getOperand(OpNo + 1).getImm();
- // Calculate final offset.
- // - There is no need to change the offset if the frame object
- // is one of the
- // following: an outgoing argument, pointer to a dynamically allocated
- // stack space or a $gp restore location,
- // - If the frame object is any of the following,
- // its offset must be adjusted
- // by adding the size of the stack:
- // incoming argument, callee-saved register location or local variable.
- int64_t Offset;
- Offset = SPOffset + (int64_t)StackSize;
- Offset += MI.getOperand(OpNo + 1).getImm();
+ DEBUG(errs() << "Offset : " << Offset << "\n" << "<--------->\n");
- DEBUG(errs() << "Offset : " << Offset << "\n" << "<--------->\n");
-
- MI.getOperand(OpNo).ChangeToRegister(FrameReg, false);
- MI.getOperand(OpNo + 1).ChangeToImmediate(Offset);
+ MI.getOperand(OpNo).ChangeToRegister(FrameReg, false);
+ MI.getOperand(OpNo + 1).ChangeToImmediate(Offset);
}