Changes to file in lib/CodeGen to call sortUnique on MachineBasicBlock::LiveIns SortedVector after inserting regs in a given scope.

[qcolombet]

Hi Puyan,

I believe this change is not relevant anymore.
Could you close it?

Thanks,
-Quentin

lib/CodeGen/BranchFolding.cpp

     for (unsigned int i = 1, e = TRI->getNumRegs(); i != e; i++)
       if (RS->isRegUsed(i, false))
         NewMBB->addLiveIn(i);
+    NewMBB->sortUniqueLiveIns();
   }
 }
 

       FBB->addLiveIn(Def);
     }
   }
+  TBB->sortUniqueLiveIns();
+  FBB->sortUniqueLiveIns();
 
   ++NumHoist;
   return true;

lib/CodeGen/ExecutionDepsFix.cpp

 
   // This is the entry block.
   if (MBB->pred_empty()) {
+    MBB->sortUniqueLiveIns();
     for (MachineBasicBlock::livein_iterator i = MBB->livein_begin(),
          e = MBB->livein_end(); i != e; ++i) {
       for (int rx : regIndices(*i)) {

lib/CodeGen/LiveVariables.cpp

 }
 
 void LiveVariables::runOnBlock(MachineBasicBlock *MBB, const unsigned NumRegs) {
+  // Sort and Unique the LiveIns just in case.
+  MBB->sortUniqueLiveIns();
+
   // Mark live-in registers as live-in.
   SmallVector<unsigned, 4> Defs;
   for (MachineBasicBlock::livein_iterator II = MBB->livein_begin(),

lib/CodeGen/MachineCSE.cpp

           if (!MBB->isLiveIn(LiveIn))
             MBB->addLiveIn(LiveIn);
         }
+
+        MBB->sortUniqueLiveIns();
         ++NumCrossBBCSEs;
       }
 

lib/CodeGen/MachineLICM.cpp

           MO.setIsKill(false);
       }
     }
+    BB->sortUniqueLiveIns();
   }
 }
 

lib/CodeGen/MachineRegisterInfo.cpp

       // Add the register to the entry block live-in set.
       EntryMBB->addLiveIn(LiveIns[i].first);
     }
+
+  EntryMBB->sortUniqueLiveIns();
 }
 
 unsigned MachineRegisterInfo::getMaxLaneMaskForVReg(unsigned Reg) const

lib/CodeGen/PrologEpilogInserter.cpp

       // It's killed at the spill.
       MBB->addLiveIn(CSI[i].getReg());
   }
+
+  for (MachineBasicBlock *MBB : Visited)
+    MBB->sortUniqueLiveIns();
 }
 
 /// insertCSRSpillsAndRestores - Insert spill and restore code for