Subzero: Fix a bug in postLower().

src/IceTargetLoweringX8632.cpp

 //===- subzero/src/IceTargetLoweringX8632.cpp - x86-32 lowering -----------===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
 // This file implements the TargetLoweringX8632 class, which
@@ skipping 4281 matching lines @@
     }
     // Update register availability before moving to the previous
     // instruction on the Assignments list.
     if (Dest->hasReg())
       Available[Dest->getRegNum()] = true;
     if (SrcVar && SrcVar->hasReg())
       Available[SrcVar->getRegNum()] = false;
   }
 
   // Add the terminator branch instruction to the end.
-  Context.setInsertPoint(Context.end());
+  Context.setInsertPoint(Context.getEnd());
   _br(Succ);
 }
 
 // There is no support for loading or emitting vector constants, so the
 // vector values returned from makeVectorOfZeros, makeVectorOfOnes,
 // etc. are initialized with register operations.
 //
 // TODO(wala): Add limited support for vector constants so that
 // complex initialization in registers is unnecessary.
 
@@ skipping 189 matching lines @@
   else
     Reg->setRegNum(RegNum);
   return Reg;
 }
 
 void TargetX8632::postLower() {
   if (Ctx->getOptLevel() == Opt_m1)
     return;
   // Find two-address non-SSA instructions where Dest==Src0, and set
   // the DestNonKillable flag to keep liveness analysis consistent.
-  for (auto Inst = Context.begin(), E = Context.end(); Inst != E; ++Inst) {
+  for (auto Inst = Context.getCur(), E = Context.getNext(); Inst != E; ++Inst) {
     if (Inst->isDeleted())
       continue;
     if (Variable *Dest = Inst->getDest()) {
       // TODO(stichnot): We may need to consider all source
       // operands, not just the first one, if using 3-address
       // instructions.
       if (Inst->getSrcSize() > 0 && Inst->getSrc(0) == Dest)
         Inst->setDestNonKillable();
     }
   }
@@ skipping 118 matching lines @@
   } else if (IsConstant || IsExternal)
     Str << "\t.zero\t" << Size << "\n";
   // Size is part of .comm.
 
   if (IsConstant || HasNonzeroInitializer || IsExternal)
     Str << "\t.size\t" << MangledName << ", " << Size << "\n";
   // Size is part of .comm.
 }
 
 } // end of namespace Ice