diff options
| -rw-r--r-- | lib/CodeGen/LiveIntervalAnalysis.cpp | 6 | ||||
| -rw-r--r-- | test/CodeGen/ARM/2010-11-15-SpillEarlyClobber.ll | 1 |
2 files changed, 6 insertions, 1 deletions
diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp index aa2f965887..b77d43fe9a 100644 --- a/lib/CodeGen/LiveIntervalAnalysis.cpp +++ b/lib/CodeGen/LiveIntervalAnalysis.cpp @@ -1136,11 +1136,14 @@ rewriteInstructionForSpills(const LiveInterval &li, const VNInfo *VNI, rewriteImplicitOps(li, MI, NewVReg, vrm); // Reuse NewVReg for other reads. + bool HasEarlyClobber = false; for (unsigned j = 0, e = Ops.size(); j != e; ++j) { MachineOperand &mopj = MI->getOperand(Ops[j]); mopj.setReg(NewVReg); if (mopj.isImplicit()) rewriteImplicitOps(li, MI, NewVReg, vrm); + if (mopj.isEarlyClobber()) + HasEarlyClobber = true; } if (CreatedNewVReg) { @@ -1199,7 +1202,8 @@ rewriteInstructionForSpills(const LiveInterval &li, const VNInfo *VNI, } } if (HasDef) { - LiveRange LR(index.getDefIndex(), index.getStoreIndex(), + LiveRange LR(HasEarlyClobber ? index.getUseIndex() : index.getDefIndex(), + index.getStoreIndex(), nI.getNextValue(SlotIndex(), 0, VNInfoAllocator)); DEBUG(dbgs() << " +" << LR); nI.addRange(LR); diff --git a/test/CodeGen/ARM/2010-11-15-SpillEarlyClobber.ll b/test/CodeGen/ARM/2010-11-15-SpillEarlyClobber.ll index 046016aa3f..0422094902 100644 --- a/test/CodeGen/ARM/2010-11-15-SpillEarlyClobber.ll +++ b/test/CodeGen/ARM/2010-11-15-SpillEarlyClobber.ll @@ -1,3 +1,4 @@ +; RUN: llc < %s -verify-machineinstrs -spiller=standard ; RUN: llc < %s -verify-machineinstrs -spiller=inline ; PR8612 ; |