diff --git a/lib/Target/Mips/MipsMachineFunction.h b/lib/Target/Mips/MipsMachineFunction.h index 949c78aebc9..a300f49ff5d 100644 --- a/lib/Target/Mips/MipsMachineFunction.h +++ b/lib/Target/Mips/MipsMachineFunction.h @@ -103,6 +103,7 @@ public: int getGPFI() const { return GPHolder.FI; } void setGPStackOffset(int Off) { GPHolder.SPOffset = Off; } void setGPFI(int FI) { GPHolder.FI = FI; } + bool needGPSaveRestore() const { return GPHolder.SPOffset != -1; } bool hasLoadArgs() const { return HasLoadArgs; } bool hasStoreVarArgs() const { return HasStoreVarArgs; } diff --git a/lib/Target/Mips/MipsRegisterInfo.cpp b/lib/Target/Mips/MipsRegisterInfo.cpp index d2289e9cdba..e90bb3af824 100644 --- a/lib/Target/Mips/MipsRegisterInfo.cpp +++ b/lib/Target/Mips/MipsRegisterInfo.cpp @@ -438,11 +438,10 @@ emitPrologue(MachineFunction &MF) const .addReg(Mips::SP).addReg(Mips::ZERO); } - // PIC speficic function prologue - if ((isPIC) && (MFI->hasCalls())) { + // Restore GP from the saved stack location + if (MipsFI->needGPSaveRestore()) BuildMI(MBB, MBBI, dl, TII.get(Mips::CPRESTORE)) .addImm(MipsFI->getGPStackOffset()); - } } void MipsRegisterInfo:: @@ -489,13 +488,11 @@ emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const void MipsRegisterInfo:: processFunctionBeforeFrameFinalized(MachineFunction &MF) const { - // Set the SPOffset on the FI where GP must be saved/loaded. + // Set the stack offset where GP must be saved/loaded from. MachineFrameInfo *MFI = MF.getFrameInfo(); - bool isPIC = (MF.getTarget().getRelocationModel() == Reloc::PIC_); - if (MFI->hasCalls() && isPIC) { - MipsFunctionInfo *MipsFI = MF.getInfo(); + MipsFunctionInfo *MipsFI = MF.getInfo(); + if (MipsFI->needGPSaveRestore()) MFI->setObjectOffset(MipsFI->getGPFI(), MipsFI->getGPStackOffset()); - } } unsigned MipsRegisterInfo::