Update GEP constructors to use an iterator interface to fix
GLIBCXX_DEBUG issues.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41697 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/IPO/ArgumentPromotion.cpp b/lib/Transforms/IPO/ArgumentPromotion.cpp
index 9853afe..93a7af6 100644
--- a/lib/Transforms/IPO/ArgumentPromotion.cpp
+++ b/lib/Transforms/IPO/ArgumentPromotion.cpp
@@ -376,8 +376,8 @@
       for (ScalarizeTable::iterator SI = ArgIndices.begin(),
              E = ArgIndices.end(); SI != E; ++SI)
         Params.push_back(GetElementPtrInst::getIndexedType(I->getType(),
-                                                           &(*SI)[0],
-                                                           SI->size()));
+                                                           SI->begin(),
+                                                           SI->end()));
 
       if (ArgIndices.size() == 1 && ArgIndices.begin()->empty())
         ++NumArgumentsPromoted;
@@ -428,7 +428,7 @@
           Value *V = *AI;
           LoadInst *OrigLoad = OriginalLoads[*SI];
           if (!SI->empty()) {
-            V = new GetElementPtrInst(V, &(*SI)[0], SI->size(),
+            V = new GetElementPtrInst(V, SI->begin(), SI->end(),
                                       V->getName()+".idx", Call);
             AA.copyValue(OrigLoad->getOperand(0), V);
           }
diff --git a/lib/Transforms/IPO/GlobalOpt.cpp b/lib/Transforms/IPO/GlobalOpt.cpp
index 520af87..58a705d 100644
--- a/lib/Transforms/IPO/GlobalOpt.cpp
+++ b/lib/Transforms/IPO/GlobalOpt.cpp
@@ -464,7 +464,7 @@
         Idxs.push_back(NullInt);
         for (unsigned i = 3, e = GEPI->getNumOperands(); i != e; ++i)
           Idxs.push_back(GEPI->getOperand(i));
-        NewPtr = new GetElementPtrInst(NewPtr, &Idxs[0], Idxs.size(),
+        NewPtr = new GetElementPtrInst(NewPtr, Idxs.begin(), Idxs.end(),
                                        GEPI->getName()+"."+utostr(Val), GEPI);
       }
     GEP->replaceAllUsesWith(NewPtr);
@@ -698,7 +698,7 @@
                      MI->getAlignment(), MI->getName(), MI);
     Value* Indices[2];
     Indices[0] = Indices[1] = Constant::getNullValue(Type::Int32Ty);
-    Value *NewGEP = new GetElementPtrInst(NewMI, Indices, 2,
+    Value *NewGEP = new GetElementPtrInst(NewMI, Indices, Indices + 2,
                                           NewMI->getName()+".el0", MI);
     MI->replaceAllUsesWith(NewGEP);
     MI->eraseFromParent();
@@ -926,7 +926,7 @@
     GEPIdx.push_back(GEPI->getOperand(1));
     GEPIdx.append(GEPI->op_begin()+3, GEPI->op_end());
 
-    Value *NGEPI = new GetElementPtrInst(NewPtr, &GEPIdx[0], GEPIdx.size(),
+    Value *NGEPI = new GetElementPtrInst(NewPtr, GEPIdx.begin(), GEPIdx.end(),
                                          GEPI->getName(), GEPI);
     GEPI->replaceAllUsesWith(NGEPI);
     GEPI->eraseFromParent();
diff --git a/lib/Transforms/Scalar/GVNPRE.cpp b/lib/Transforms/Scalar/GVNPRE.cpp
index e56be31..d362f54 100644
--- a/lib/Transforms/Scalar/GVNPRE.cpp
+++ b/lib/Transforms/Scalar/GVNPRE.cpp
@@ -945,7 +945,7 @@
     
     if (newOp1 != U->getPointerOperand() || changed_idx) {
       Instruction* newVal = new GetElementPtrInst(newOp1,
-                                       &newIdx[0], newIdx.size(),
+                                       newIdx.begin(), newIdx.end(),
                                        U->getName()+".expr");
       
       uint32_t v = VN.lookup_or_add(newVal);
@@ -1675,7 +1675,7 @@
                                   C->getName()+".gvnpre", 
                                   (*PI)->getTerminator());
       else if (GetElementPtrInst* G = dyn_cast<GetElementPtrInst>(U))
-        newVal = new GetElementPtrInst(s1, &sVarargs[0], sVarargs.size(), 
+        newVal = new GetElementPtrInst(s1, sVarargs.begin(), sVarargs.end(), 
                                        G->getName()+".gvnpre", 
                                        (*PI)->getTerminator());
                                 
diff --git a/lib/Transforms/Scalar/IndVarSimplify.cpp b/lib/Transforms/Scalar/IndVarSimplify.cpp
index 7f0e65e..5e82ad0 100644
--- a/lib/Transforms/Scalar/IndVarSimplify.cpp
+++ b/lib/Transforms/Scalar/IndVarSimplify.cpp
@@ -178,8 +178,11 @@
               Constant *NCE = ConstantExpr::getGetElementPtr(CE->getOperand(0),
                                                              &CEIdxs[0],
                                                              CEIdxs.size());
+              Value *Idx[2];
+              Idx[0] = Constant::getNullValue(Type::Int32Ty);
+              Idx[1] = NewAdd;
               GetElementPtrInst *NGEPI = new GetElementPtrInst(
-                  NCE, Constant::getNullValue(Type::Int32Ty), NewAdd, 
+                  NCE, Idx, Idx + 2, 
                   GEPI->getName(), GEPI);
               SE->deleteValueFromRecords(GEPI);
               GEPI->replaceAllUsesWith(NGEPI);
diff --git a/lib/Transforms/Scalar/InstructionCombining.cpp b/lib/Transforms/Scalar/InstructionCombining.cpp
index 218da97..34f9806 100644
--- a/lib/Transforms/Scalar/InstructionCombining.cpp
+++ b/lib/Transforms/Scalar/InstructionCombining.cpp
@@ -6564,8 +6564,9 @@
             // If we were able to index down into an element, create the GEP
             // and bitcast the result.  This eliminates one bitcast, potentially
             // two.
-            Instruction *NGEP = new GetElementPtrInst(OrigBase, &NewIndices[0],
-                                                      NewIndices.size(), "");
+            Instruction *NGEP = new GetElementPtrInst(OrigBase, 
+                                                      NewIndices.begin(),
+                                                      NewIndices.end(), "");
             InsertNewInstBefore(NGEP, CI);
             NGEP->takeName(GEP);
             
@@ -7057,7 +7058,7 @@
     // If we found a path from the src to dest, create the getelementptr now.
     if (SrcElTy == DstElTy) {
       SmallVector<Value*, 8> Idxs(NumZeros+1, ZeroUInt);
-      return new GetElementPtrInst(Src, &Idxs[0], Idxs.size());
+      return new GetElementPtrInst(Src, Idxs.begin(), Idxs.end());
     }
   }
 
@@ -8502,8 +8503,8 @@
     }
 
     if (!Indices.empty())
-      return new GetElementPtrInst(SrcGEPOperands[0], &Indices[0],
-                                   Indices.size(), GEP.getName());
+      return new GetElementPtrInst(SrcGEPOperands[0], Indices.begin(),
+                                   Indices.end(), GEP.getName());
 
   } else if (GlobalValue *GV = dyn_cast<GlobalValue>(PtrOp)) {
     // GEP of global variable.  If all of the indices for this GEP are
@@ -8554,9 +8555,11 @@
       if (isa<ArrayType>(SrcElTy) &&
           TD->getTypeSize(cast<ArrayType>(SrcElTy)->getElementType()) ==
           TD->getTypeSize(ResElTy)) {
+        Value *Idx[2];
+        Idx[0] = Constant::getNullValue(Type::Int32Ty);
+        Idx[1] = GEP.getOperand(1);
         Value *V = InsertNewInstBefore(
-               new GetElementPtrInst(X, Constant::getNullValue(Type::Int32Ty),
-                                     GEP.getOperand(1), GEP.getName()), GEP);
+               new GetElementPtrInst(X, Idx, Idx + 2, GEP.getName()), GEP);
         // V and GEP are both pointer types --> BitCast
         return new BitCastInst(V, GEP.getType());
       }
@@ -8609,9 +8612,11 @@
           }
 
           // Insert the new GEP instruction.
+          Value *Idx[2];
+          Idx[0] = Constant::getNullValue(Type::Int32Ty);
+          Idx[1] = NewIdx;
           Instruction *NewGEP =
-            new GetElementPtrInst(X, Constant::getNullValue(Type::Int32Ty),
-                                  NewIdx, GEP.getName());
+            new GetElementPtrInst(X, Idx, Idx + 2, GEP.getName());
           NewGEP = InsertNewInstBefore(NewGEP, GEP);
           // The NewGEP must be pointer typed, so must the old one -> BitCast
           return new BitCastInst(NewGEP, GEP.getType());
@@ -8651,7 +8656,10 @@
       // insert our getelementptr instruction...
       //
       Value *NullIdx = Constant::getNullValue(Type::Int32Ty);
-      Value *V = new GetElementPtrInst(New, NullIdx, NullIdx,
+      Value *Idx[2];
+      Idx[0] = NullIdx;
+      Idx[1] = NullIdx;
+      Value *V = new GetElementPtrInst(New, Idx, Idx + 2,
                                        New->getName()+".sub", It);
 
       // Now make everything use the getelementptr instead of the original
diff --git a/lib/Transforms/Scalar/LowerGC.cpp b/lib/Transforms/Scalar/LowerGC.cpp
index 0da1d91..9807099 100644
--- a/lib/Transforms/Scalar/LowerGC.cpp
+++ b/lib/Transforms/Scalar/LowerGC.cpp
@@ -242,8 +242,11 @@
   Constant *Zero = ConstantInt::get(Type::Int32Ty, 0);
   Constant *One  = ConstantInt::get(Type::Int32Ty, 1);
 
+  Value *Idx[2] = { Zero, Zero };
+  
   // Get a pointer to the prev pointer.
-  Value *PrevPtrPtr = new GetElementPtrInst(AI, Zero, Zero, "prevptrptr", IP);
+  Value *PrevPtrPtr = new GetElementPtrInst(AI, Idx, Idx + 2,
+                                            "prevptrptr", IP);
 
   // Load the previous pointer.
   Value *PrevPtr = new LoadInst(RootChain, "prevptr", IP);
@@ -251,7 +254,9 @@
   new StoreInst(PrevPtr, PrevPtrPtr, IP);
 
   // Set the number of elements in this record.
-  Value *NumEltsPtr = new GetElementPtrInst(AI, Zero, One, "numeltsptr", IP);
+  Idx[1] = One;
+  Value *NumEltsPtr = new GetElementPtrInst(AI, Idx, Idx + 2,
+                                            "numeltsptr", IP);
   new StoreInst(ConstantInt::get(Type::Int32Ty, GCRoots.size()), NumEltsPtr,IP);
 
   Value* Par[4];
@@ -267,13 +272,15 @@
     // Initialize the meta-data pointer.
     Par[2] = ConstantInt::get(Type::Int32Ty, i);
     Par[3] = One;
-    Value *MetaDataPtr = new GetElementPtrInst(AI, Par, 4, "MetaDataPtr", IP);
+    Value *MetaDataPtr = new GetElementPtrInst(AI, Par, Par + 4,
+                                               "MetaDataPtr", IP);
     assert(isa<Constant>(GCRoots[i]->getOperand(2)) && "Must be a constant");
     new StoreInst(GCRoots[i]->getOperand(2), MetaDataPtr, IP);
 
     // Initialize the root pointer to null on entry to the function.
     Par[3] = Zero;
-    Value *RootPtrPtr = new GetElementPtrInst(AI, Par, 4, "RootEntPtr", IP);
+    Value *RootPtrPtr = new GetElementPtrInst(AI, Par, Par + 4,
+                                              "RootEntPtr", IP);
     new StoreInst(Null, RootPtrPtr, IP);
 
     // Each occurrance of the llvm.gcroot intrinsic now turns into an
diff --git a/lib/Transforms/Scalar/LowerPacked.cpp b/lib/Transforms/Scalar/LowerPacked.cpp
index a701c75..24a9cc2 100644
--- a/lib/Transforms/Scalar/LowerPacked.cpp
+++ b/lib/Transforms/Scalar/LowerPacked.cpp
@@ -235,7 +235,7 @@
 
             // Get the pointer
             Value* val = new GetElementPtrInst(array,
-                                               &Idx[0], Idx.size(),
+                                               Idx.begin(), Idx.end(),
                                                LI.getName() +
                                                ".ge." + utostr(i),
                                                &LI);
@@ -333,7 +333,7 @@
             // Generate the indices for getelementptr
             Idx[1] = ConstantInt::get(Type::Int32Ty,i);
             Value* val = new GetElementPtrInst(array,
-                                               &Idx[0], Idx.size(),
+                                               Idx.begin(), Idx.end(),
                                                "store.ge." +
                                                utostr(i) + ".",
                                                &SI);
diff --git a/lib/Transforms/Scalar/ScalarReplAggregates.cpp b/lib/Transforms/Scalar/ScalarReplAggregates.cpp
index 52edcb6..1092b88 100644
--- a/lib/Transforms/Scalar/ScalarReplAggregates.cpp
+++ b/lib/Transforms/Scalar/ScalarReplAggregates.cpp
@@ -319,8 +319,8 @@
       SmallVector<Value*, 8> NewArgs;
       NewArgs.push_back(Constant::getNullValue(Type::Int32Ty));
       NewArgs.append(GEPI->op_begin()+3, GEPI->op_end());
-      RepValue = new GetElementPtrInst(AllocaToUse, &NewArgs[0],
-                                       NewArgs.size(), "", GEPI);
+      RepValue = new GetElementPtrInst(AllocaToUse, NewArgs.begin(),
+                                       NewArgs.end(), "", GEPI);
       RepValue->takeName(GEPI);
     }
     
@@ -626,8 +626,10 @@
       // If this is a memcpy/memmove, emit a GEP of the other element address.
       Value *OtherElt = 0;
       if (OtherPtr) {
-        OtherElt = new GetElementPtrInst(OtherPtr, Zero,
-                                         ConstantInt::get(Type::Int32Ty, i),
+        Value *Idx[2];
+        Idx[0] = Zero;
+        Idx[1] = ConstantInt::get(Type::Int32Ty, i);
+        OtherElt = new GetElementPtrInst(OtherPtr, Idx, Idx + 2,
                                          OtherPtr->getNameStr()+"."+utostr(i),
                                          MI);
       }
@@ -829,11 +831,13 @@
           SmallVector<Value*, 8> Indices(GEPI->op_begin()+1, GEPI->op_end());
           Indices[1] = Constant::getNullValue(Type::Int32Ty);
           Value *ZeroIdx = new GetElementPtrInst(GEPI->getOperand(0),
-                                                 &Indices[0], Indices.size(),
+                                                 Indices.begin(),
+                                                 Indices.end(),
                                                  GEPI->getName()+".0", GEPI);
           Indices[1] = ConstantInt::get(Type::Int32Ty, 1);
           Value *OneIdx = new GetElementPtrInst(GEPI->getOperand(0),
-                                                &Indices[0], Indices.size(),
+                                                Indices.begin(),
+                                                Indices.end(),
                                                 GEPI->getName()+".1", GEPI);
           // Replace all loads of the variable index GEP with loads from both
           // indexes and a select.
diff --git a/lib/Transforms/Utils/CodeExtractor.cpp b/lib/Transforms/Utils/CodeExtractor.cpp
index 90642f1..c42d5e1 100644
--- a/lib/Transforms/Utils/CodeExtractor.cpp
+++ b/lib/Transforms/Utils/CodeExtractor.cpp
@@ -294,11 +294,12 @@
   for (unsigned i = 0, e = inputs.size(); i != e; ++i) {
     Value *RewriteVal;
     if (AggregateArgs) {
-      Value *Idx0 = Constant::getNullValue(Type::Int32Ty);
-      Value *Idx1 = ConstantInt::get(Type::Int32Ty, i);
+      Value *Idx[2];
+      Idx[0] = Constant::getNullValue(Type::Int32Ty);
+      Idx[1] = ConstantInt::get(Type::Int32Ty, i);
       std::string GEPname = "gep_" + inputs[i]->getName();
       TerminatorInst *TI = newFunction->begin()->getTerminator();
-      GetElementPtrInst *GEP = new GetElementPtrInst(AI, Idx0, Idx1, 
+      GetElementPtrInst *GEP = new GetElementPtrInst(AI, Idx, Idx+2, 
                                                      GEPname, TI);
       RewriteVal = new LoadInst(GEP, "load" + GEPname, TI);
     } else
@@ -381,10 +382,11 @@
     params.push_back(Struct);
 
     for (unsigned i = 0, e = inputs.size(); i != e; ++i) {
-      Value *Idx0 = Constant::getNullValue(Type::Int32Ty);
-      Value *Idx1 = ConstantInt::get(Type::Int32Ty, i);
+      Value *Idx[2];
+      Idx[0] = Constant::getNullValue(Type::Int32Ty);
+      Idx[1] = ConstantInt::get(Type::Int32Ty, i);
       GetElementPtrInst *GEP =
-        new GetElementPtrInst(Struct, Idx0, Idx1,
+        new GetElementPtrInst(Struct, Idx, Idx + 2,
                               "gep_" + StructValues[i]->getName());
       codeReplacer->getInstList().push_back(GEP);
       StoreInst *SI = new StoreInst(StructValues[i], GEP);
@@ -406,10 +408,11 @@
   for (unsigned i = 0, e = outputs.size(); i != e; ++i) {
     Value *Output = 0;
     if (AggregateArgs) {
-      Value *Idx0 = Constant::getNullValue(Type::Int32Ty);
-      Value *Idx1 = ConstantInt::get(Type::Int32Ty, FirstOut + i);
+      Value *Idx[2];
+      Idx[0] = Constant::getNullValue(Type::Int32Ty);
+      Idx[1] = ConstantInt::get(Type::Int32Ty, FirstOut + i);
       GetElementPtrInst *GEP
-        = new GetElementPtrInst(Struct, Idx0, Idx1,
+        = new GetElementPtrInst(Struct, Idx, Idx + 2,
                                 "gep_reload_" + outputs[i]->getName());
       codeReplacer->getInstList().push_back(GEP);
       Output = GEP;
@@ -506,10 +509,11 @@
 
             if (DominatesDef) {
               if (AggregateArgs) {
-                Value *Idx0 = Constant::getNullValue(Type::Int32Ty);
-                Value *Idx1 = ConstantInt::get(Type::Int32Ty,FirstOut+out);
+                Value *Idx[2];
+                Idx[0] = Constant::getNullValue(Type::Int32Ty);
+                Idx[1] = ConstantInt::get(Type::Int32Ty,FirstOut+out);
                 GetElementPtrInst *GEP =
-                  new GetElementPtrInst(OAI, Idx0, Idx1,
+                  new GetElementPtrInst(OAI, Idx, Idx + 2,
                                         "gep_" + outputs[out]->getName(),
                                         NTRet);
                 new StoreInst(outputs[out], GEP, NTRet);
diff --git a/lib/Transforms/Utils/LowerInvoke.cpp b/lib/Transforms/Utils/LowerInvoke.cpp
index ba03635..acb2b52 100644
--- a/lib/Transforms/Utils/LowerInvoke.cpp
+++ b/lib/Transforms/Utils/LowerInvoke.cpp
@@ -450,8 +450,8 @@
     std::vector<Value*> Idx;
     Idx.push_back(Constant::getNullValue(Type::Int32Ty));
     Idx.push_back(ConstantInt::get(Type::Int32Ty, 1));
-    OldJmpBufPtr = new GetElementPtrInst(JmpBuf, &Idx[0], 2, "OldBuf",
-                                         EntryBB->getTerminator());
+    OldJmpBufPtr = new GetElementPtrInst(JmpBuf, Idx.begin(), Idx.end(),
+                                         "OldBuf", EntryBB->getTerminator());
 
     // Copy the JBListHead to the alloca.
     Value *OldBuf = new LoadInst(JBListHead, "oldjmpbufptr", true,
@@ -489,7 +489,7 @@
                                                      "setjmp.cont");
 
     Idx[1] = ConstantInt::get(Type::Int32Ty, 0);
-    Value *JmpBufPtr = new GetElementPtrInst(JmpBuf, &Idx[0], Idx.size(),
+    Value *JmpBufPtr = new GetElementPtrInst(JmpBuf, Idx.begin(), Idx.end(),
                                              "TheJmpBuf",
                                              EntryBB->getTerminator());
     Value *SJRet = new CallInst(SetJmpFn, JmpBufPtr, "sjret",
@@ -540,7 +540,8 @@
   std::vector<Value*> Idx;
   Idx.push_back(Constant::getNullValue(Type::Int32Ty));
   Idx.push_back(ConstantInt::get(Type::Int32Ty, 0));
-  Idx[0] = new GetElementPtrInst(BufPtr, &Idx[0], 2, "JmpBuf", UnwindBlock);
+  Idx[0] = new GetElementPtrInst(BufPtr, Idx.begin(), Idx.end(), "JmpBuf",
+                                 UnwindBlock);
   Idx[1] = ConstantInt::get(Type::Int32Ty, 1);
   new CallInst(LongJmpFn, Idx.begin(), Idx.end(), "", UnwindBlock);
   new UnreachableInst(UnwindBlock);