diff options
Diffstat (limited to 'llvm/lib/Target/AMDGPU/SIFrameLowering.cpp')
| -rw-r--r-- | llvm/lib/Target/AMDGPU/SIFrameLowering.cpp | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/llvm/lib/Target/AMDGPU/SIFrameLowering.cpp b/llvm/lib/Target/AMDGPU/SIFrameLowering.cpp index 2ecf32c6ffe..ff6fed88e37 100644 --- a/llvm/lib/Target/AMDGPU/SIFrameLowering.cpp +++ b/llvm/lib/Target/AMDGPU/SIFrameLowering.cpp @@ -594,6 +594,15 @@ void SIFrameLowering::processFunctionBeforeFrameFinalized( } } +void SIFrameLowering::determineCalleeSaves(MachineFunction &MF, BitVector &SavedRegs, + RegScavenger *RS) const { + TargetFrameLowering::determineCalleeSaves(MF, SavedRegs, RS); + const SIMachineFunctionInfo *MFI = MF.getInfo<SIMachineFunctionInfo>(); + + // The SP is specifically managed and we don't want extra spills of it. + SavedRegs.reset(MFI->getStackPtrOffsetReg()); +} + MachineBasicBlock::iterator SIFrameLowering::eliminateCallFramePseudoInstr( MachineFunction &MF, MachineBasicBlock &MBB, |
