diff options
| -rw-r--r-- | lib/CodeGen/LiveIntervalAnalysis.cpp | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp index a26feb3023..0e9609cdcc 100644 --- a/lib/CodeGen/LiveIntervalAnalysis.cpp +++ b/lib/CodeGen/LiveIntervalAnalysis.cpp @@ -570,7 +570,7 @@ void LiveIntervals::handleRegisterDef(MachineBasicBlock *MBB, else if (allocatableRegs_[reg]) { handlePhysicalRegisterDef(MBB, MI, getOrCreateInterval(reg)); for (const unsigned* AS = mri_->getAliasSet(reg); *AS; ++AS) - handlePhysicalRegisterDef(MBB, MI, getOrCreateInterval(*AS)); + handlePhysicalRegisterDef(MBB, MI, getOrCreateInterval(*AS), true); } } @@ -684,7 +684,11 @@ bool LiveIntervals::AdjustCopiesBackFrom(LiveInterval &IntA, LiveInterval &IntB, if (ValLR+1 != BLR) return false; DEBUG(std::cerr << "\nExtending: "; IntB.print(std::cerr, mri_)); - + + // We are about to delete CopyMI, so need to remove it as the 'instruction + // that defines this value #'. + IntB.setInstDefiningValNum(BValNo, ~0U); + // Okay, we can merge them. We need to insert a new liverange: // [ValLR.end, BLR.begin) of either value number, then we merge the // two value numbers. |