34 lines
1.2 KiB
Plaintext
34 lines
1.2 KiB
Plaintext
Add retguard for octeon/mips64.
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Index: lib/Target/Mips/MipsFrameLowering.cpp
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--- lib/Target/Mips/MipsFrameLowering.cpp.orig
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+++ lib/Target/Mips/MipsFrameLowering.cpp
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@@ -14,6 +14,7 @@
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#include "MCTargetDesc/MipsBaseInfo.h"
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#include "MipsInstrInfo.h"
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#include "MipsMachineFunction.h"
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+#include "MipsReturnProtectorLowering.h"
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#include "MipsTargetMachine.h"
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#include "llvm/CodeGen/MachineFrameInfo.h"
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#include "llvm/CodeGen/MachineFunction.h"
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@@ -122,6 +123,10 @@ uint64_t MipsFrameLowering::estimateStackSize(const Ma
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if (MFI.getObjectOffset(I) > 0)
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Size += MFI.getObjectSize(I);
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+ // Account for saving return protector register
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+ if (MFI.getReturnProtectorNeeded())
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+ Size += TRI.getSpillSize(*TRI.getMinimalPhysRegClass(Mips::T9_64));
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+
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// Conservatively assume all callee-saved registers will be saved.
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for (const MCPhysReg *R = TRI.getCalleeSavedRegs(&MF); *R; ++R) {
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unsigned RegSize = TRI.getSpillSize(*TRI.getMinimalPhysRegClass(*R));
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@@ -148,4 +153,8 @@ eliminateCallFramePseudoInstr(MachineFunction &MF, Mac
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}
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return MBB.erase(I);
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+}
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+
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+const ReturnProtectorLowering *MipsFrameLowering::getReturnProtector() const {
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+ return &RPL;
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}
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