diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Target/Sparc/SparcFrameLowering.cpp | 15 | ||||
| -rw-r--r-- | lib/Target/Sparc/SparcFrameLowering.h | 3 |
2 files changed, 17 insertions, 1 deletions
diff --git a/lib/Target/Sparc/SparcFrameLowering.cpp b/lib/Target/Sparc/SparcFrameLowering.cpp index 7874240..afa8411 100644 --- a/lib/Target/Sparc/SparcFrameLowering.cpp +++ b/lib/Target/Sparc/SparcFrameLowering.cpp @@ -106,3 +106,18 @@ void SparcFrameLowering::emitEpilogue(MachineFunction &MF, BuildMI(MBB, MBBI, dl, TII.get(SP::RESTORErr), SP::G0).addReg(SP::G0) .addReg(SP::G0); } + +bool SparcFrameLowering::hasReservedCallFrame(const MachineFunction &MF) const { + //Reserve call frame if there are no variable sized objects on the stack + return !MF.getFrameInfo()->hasVarSizedObjects(); +} + +// hasFP - Return true if the specified function should have a dedicated frame +// pointer register. This is true if the function has variable sized allocas or +// if frame pointer elimination is disabled. +bool SparcFrameLowering::hasFP(const MachineFunction &MF) const { + const MachineFrameInfo *MFI = MF.getFrameInfo(); + return MF.getTarget().Options.DisableFramePointerElim(MF) || + MFI->hasVarSizedObjects() || MFI->isFrameAddressTaken(); +} + diff --git a/lib/Target/Sparc/SparcFrameLowering.h b/lib/Target/Sparc/SparcFrameLowering.h index c375662..4a3cef7 100644 --- a/lib/Target/Sparc/SparcFrameLowering.h +++ b/lib/Target/Sparc/SparcFrameLowering.h @@ -38,7 +38,8 @@ public: MachineBasicBlock &MBB, MachineBasicBlock::iterator I) const; - bool hasFP(const MachineFunction &MF) const { return false; } + bool hasReservedCallFrame(const MachineFunction &MF) const; + bool hasFP(const MachineFunction &MF) const; }; } // End llvm namespace |