[llvm-commits] [llvm] r133793 - /llvm/trunk/lib/CodeGen/TailDuplication.cpp

[Rafael Espindola]

Author: rafael
Date: Fri Jun 24 09:04:13 2011
New Revision: 133793

URL: http://llvm.org/viewvc/llvm-project?rev=133793&view=rev
Log:
Simplify now that blocks with phis are not considered simple.

Modified:
    llvm/trunk/lib/CodeGen/TailDuplication.cpp

Modified: llvm/trunk/lib/CodeGen/TailDuplication.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/TailDuplication.cpp?rev=133793&r1=133792&r2=133793&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/TailDuplication.cpp (original)
+++ llvm/trunk/lib/CodeGen/TailDuplication.cpp Fri Jun 24 09:04:13 2011
@@ -659,21 +659,6 @@
     MachineBasicBlock *NewTarget = *TailBB->succ_begin();
     MachineBasicBlock *NextBB = llvm::next(MachineFunction::iterator(PredBB));
 
-    DenseMap<unsigned, unsigned> LocalVRMap;
-    SmallVector<std::pair<unsigned,unsigned>, 4> CopyInfos;
-    for (MachineBasicBlock::iterator I = TailBB->begin();
-         I != TailBB->end() && I->isPHI();) {
-      MachineInstr *MI = &*I;
-      ++I;
-      ProcessPHI(MI, TailBB, PredBB, LocalVRMap, CopyInfos, UsedByPhi, true);
-    }
-    MachineBasicBlock::iterator Loc = PredBB->getFirstTerminator();
-    for (unsigned i = 0, e = CopyInfos.size(); i != e; ++i) {
-      Copies.push_back(BuildMI(*PredBB, Loc, DebugLoc(),
-                               TII->get(TargetOpcode::COPY),
-                               CopyInfos[i].first).addReg(CopyInfos[i].second));
-    }
-
     // Make PredFBB explicit.
     if (PredCond.empty())
       PredFBB = PredTBB;