diff options
| -rw-r--r-- | llvm/lib/Target/AMDGPU/SIFixSGPRLiveRanges.cpp | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/llvm/lib/Target/AMDGPU/SIFixSGPRLiveRanges.cpp b/llvm/lib/Target/AMDGPU/SIFixSGPRLiveRanges.cpp index b469898bef5..b91649e54f9 100644 --- a/llvm/lib/Target/AMDGPU/SIFixSGPRLiveRanges.cpp +++ b/llvm/lib/Target/AMDGPU/SIFixSGPRLiveRanges.cpp @@ -81,6 +81,10 @@ public: AU.addRequired<LiveIntervals>(); AU.addRequired<MachinePostDominatorTree>(); AU.setPreservesCFG(); + + //AU.addPreserved<SlotIndexes>(); // XXX - This might be OK + AU.addPreserved<LiveIntervals>(); + MachineFunctionPass::getAnalysisUsage(AU); } }; @@ -181,10 +185,15 @@ bool SIFixSGPRLiveRanges::runOnMachineFunction(MachineFunction &MF) { // FIXME: Need to figure out how to update LiveRange here so this pass // will be able to preserve LiveInterval analysis. - BuildMI(*NCD, NCD->getFirstNonPHI(), DebugLoc(), - TII->get(AMDGPU::SGPR_USE)) - .addReg(Reg, RegState::Implicit); - DEBUG(NCD->getFirstNonPHI()->dump()); + MachineInstr *NCDSGPRUse = + BuildMI(*NCD, NCD->getFirstNonPHI(), DebugLoc(), + TII->get(AMDGPU::SGPR_USE)) + .addReg(Reg, RegState::Implicit); + + SlotIndex SI = LIS->InsertMachineInstrInMaps(NCDSGPRUse); + LIS->extendToIndices(*LR, SI.getRegSlot()); + + DEBUG(NCDSGPRUse->dump()); } } |
