Resubmit the changes to llvm core to update the functions to support different pointer sizes on a per address space basis.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165941 91177308-0d34-0410-b5e6-96231b3b80d8

40 files changed, 190 insertions, 109 deletions

diff --git a/include/llvm-c/Target.h b/include/llvm-c/Target.h
index 92228701e3..57abfa0207 100644
--- a/include/llvm-c/Target.h
+++ b/include/llvm-c/Target.h
@@ -172,10 +172,20 @@ enum LLVMByteOrdering LLVMByteOrder(LLVMTargetDataRef);
     See the method llvm::DataLayout::getPointerSize. */
 unsigned LLVMPointerSize(LLVMTargetDataRef);
 
+/** Returns the pointer size in bytes for a target for a specified
+    address space.
+    See the method llvm::DataLayout::getPointerSize. */
+unsigned LLVMPointerSizeForAS(LLVMTargetDataRef, unsigned AS);
+
 /** Returns the integer type that is the same size as a pointer on a target.
     See the method llvm::DataLayout::getIntPtrType. */
 LLVMTypeRef LLVMIntPtrType(LLVMTargetDataRef);
 
+/** Returns the integer type that is the same size as a pointer on a target.
+    This version allows the address space to be specified.
+    See the method llvm::DataLayout::getIntPtrType. */
+LLVMTypeRef LLVMIntPtrTypeForAS(LLVMTargetDataRef, unsigned AS);
+
 /** Computes the size of a type in bytes for a target.
     See the method llvm::DataLayout::getTypeSizeInBits. */
 unsigned long long LLVMSizeOfTypeInBits(LLVMTargetDataRef, LLVMTypeRef);
diff --git a/include/llvm/DataLayout.h b/include/llvm/DataLayout.h
index a24737e842..c9ac0b7fea 100644
--- a/include/llvm/DataLayout.h
+++ b/include/llvm/DataLayout.h
@@ -231,9 +231,7 @@ public:
   }
 
   /// Layout pointer alignment
-  /// FIXME: The defaults need to be removed once all of
-  /// the backends/clients are updated.
-  unsigned getPointerABIAlignment(unsigned AS = 0)  const {
+  unsigned getPointerABIAlignment(unsigned AS)  const {
     DenseMap<unsigned, PointerAlignElem>::const_iterator val = Pointers.find(AS);
     if (val == Pointers.end()) {
       val = Pointers.find(0);
@@ -241,9 +239,7 @@ public:
     return val->second.ABIAlign;
   }
   /// Return target's alignment for stack-based pointers
-  /// FIXME: The defaults need to be removed once all of
-  /// the backends/clients are updated.
-  unsigned getPointerPrefAlignment(unsigned AS = 0) const {
+  unsigned getPointerPrefAlignment(unsigned AS) const {
     DenseMap<unsigned, PointerAlignElem>::const_iterator val = Pointers.find(AS);
     if (val == Pointers.end()) {
       val = Pointers.find(0);
@@ -251,9 +247,7 @@ public:
     return val->second.PrefAlign;
   }
   /// Layout pointer size
-  /// FIXME: The defaults need to be removed once all of
-  /// the backends/clients are updated.
-  unsigned getPointerSize(unsigned AS = 0)          const {
+  unsigned getPointerSize(unsigned AS)          const {
     DenseMap<unsigned, PointerAlignElem>::const_iterator val = Pointers.find(AS);
     if (val == Pointers.end()) {
       val = Pointers.find(0);
@@ -261,9 +255,7 @@ public:
     return val->second.TypeBitWidth;
   }
   /// Layout pointer size, in bits
-  /// FIXME: The defaults need to be removed once all of
-  /// the backends/clients are updated.
-  unsigned getPointerSizeInBits(unsigned AS = 0)    const {
+  unsigned getPointerSizeInBits(unsigned AS)    const {
     DenseMap<unsigned, PointerAlignElem>::const_iterator val = Pointers.find(AS);
     if (val == Pointers.end()) {
       val = Pointers.find(0);
diff --git a/include/llvm/Instructions.h b/include/llvm/Instructions.h
index dba852fc84..458bd6ddb6 100644
--- a/include/llvm/Instructions.h
+++ b/include/llvm/Instructions.h
@@ -348,7 +348,16 @@ public:
   static unsigned getPointerOperandIndex() { return 1U; }
 
   unsigned getPointerAddressSpace() const {
-    return cast<PointerType>(getPointerOperand()->getType())->getAddressSpace();
+    if (getPointerOperand()->getType()->isPointerTy())
+      return cast<PointerType>(getPointerOperand()->getType())
+        ->getAddressSpace();
+    if (getPointerOperand()->getType()->isVectorTy()
+        && cast<VectorType>(getPointerOperand()->getType())->isPointerTy())
+      return cast<PointerType>(cast<VectorType>(
+            getPointerOperand()->getType())->getElementType())
+        ->getAddressSpace();
+    llvm_unreachable("Only a vector of pointers or pointers can be used!");
+    return 0;
   }
 
   // Methods for support type inquiry through isa, cast, and dyn_cast:
@@ -3618,7 +3627,15 @@ public:
 
   /// @brief return the address space of the pointer.
   unsigned getAddressSpace() const {
-    return cast<PointerType>(getType())->getAddressSpace();
+    if (getType()->isPointerTy()) 
+      return cast<PointerType>(getType())->getAddressSpace();
+    if (getType()->isVectorTy() &&
+        cast<VectorType>(getType())->getElementType()->isPointerTy())
+      return cast<PointerType>(
+          cast<VectorType>(getType())->getElementType())
+        ->getAddressSpace();
+    llvm_unreachable("Must be a pointer or a vector of pointers.");
+    return 0;
   }
 
   // Methods for support type inquiry through isa, cast, and dyn_cast:
@@ -3659,7 +3676,16 @@ public:
 
   /// @brief return the address space of the pointer.
   unsigned getPointerAddressSpace() const {
-    return cast<PointerType>(getOperand(0)->getType())->getAddressSpace();
+    Type *Ty = getOperand(0)->getType();
+    if (Ty->isPointerTy())
+      return cast<PointerType>(Ty)->getAddressSpace();
+    if (Ty->isVectorTy()
+        && cast<VectorType>(Ty)->getElementType()->isPointerTy())
+      return cast<PointerType>(
+          cast<VectorType>(Ty)->getElementType())
+        ->getAddressSpace();
+    llvm_unreachable("Must be a pointer or a vector of pointers.");
+    return 0;
   }
 
   // Methods for support type inquiry through isa, cast, and dyn_cast:
diff --git a/include/llvm/Target/TargetLowering.h b/include/llvm/Target/TargetLowering.h
index b3149e960a..183ccbd48e 100644
--- a/include/llvm/Target/TargetLowering.h
+++ b/include/llvm/Target/TargetLowering.h
@@ -146,7 +146,7 @@ public:
   // Return the pointer type for the given address space, defaults to
   // the pointer type from the data layout.
   // FIXME: The default needs to be removed once all the code is updated.
-  virtual MVT getPointerTy(uint32_t addrspace = 0) const { return PointerTy; }
+  virtual MVT getPointerTy(uint32_t AS = 0) const { return PointerTy; }
   virtual MVT getShiftAmountTy(EVT LHSTy) const;
 
   /// isSelectExpensive - Return true if the select operation is expensive for
diff --git a/include/llvm/Transforms/Utils/Local.h b/include/llvm/Transforms/Utils/Local.h
index 21dd3fbe11..fd1b5556ef 100644
--- a/include/llvm/Transforms/Utils/Local.h
+++ b/include/llvm/Transforms/Utils/Local.h
@@ -186,7 +186,8 @@ Value *EmitGEPOffset(IRBuilderTy *Builder, const DataLayout &TD, User *GEP,
   bool isInBounds = cast<GEPOperator>(GEP)->isInBounds() && !NoAssumptions;
 
   // Build a mask for high order bits.
-  unsigned IntPtrWidth = TD.getPointerSizeInBits();
+  unsigned AS = cast<GEPOperator>(GEP)->getPointerAddressSpace();
+  unsigned IntPtrWidth = TD.getPointerSizeInBits(AS);
   uint64_t PtrSizeMask = ~0ULL >> (64-IntPtrWidth);
 
   for (User::op_iterator i = GEP->op_begin() + 1, e = GEP->op_end(); i != e;
diff --git a/lib/Analysis/BasicAliasAnalysis.cpp b/lib/Analysis/BasicAliasAnalysis.cpp
index 263bfc031f..36903f94e2 100644
--- a/lib/Analysis/BasicAliasAnalysis.cpp
+++ b/lib/Analysis/BasicAliasAnalysis.cpp
@@ -286,7 +286,8 @@ DecomposeGEPExpression(const Value *V, int64_t &BaseOffs,
       V = GEPOp->getOperand(0);
       continue;
     }
-    
+
+    unsigned AS = GEPOp->getPointerAddressSpace();
     // Walk the indices of the GEP, accumulating them into BaseOff/VarIndices.
     gep_type_iterator GTI = gep_type_begin(GEPOp);
     for (User::const_op_iterator I = GEPOp->op_begin()+1,
@@ -315,7 +316,7 @@ DecomposeGEPExpression(const Value *V, int64_t &BaseOffs,
       // If the integer type is smaller than the pointer size, it is implicitly
       // sign extended to pointer size.
       unsigned Width = cast<IntegerType>(Index->getType())->getBitWidth();
-      if (TD->getPointerSizeInBits() > Width)
+      if (TD->getPointerSizeInBits(AS) > Width)
         Extension = EK_SignExt;
       
       // Use GetLinearExpression to decompose the index into a C1*V+C2 form.
@@ -344,7 +345,7 @@ DecomposeGEPExpression(const Value *V, int64_t &BaseOffs,
       
       // Make sure that we have a scale that makes sense for this target's
       // pointer size.
-      if (unsigned ShiftBits = 64-TD->getPointerSizeInBits()) {
+      if (unsigned ShiftBits = 64-TD->getPointerSizeInBits(AS)) {
         Scale <<= ShiftBits;
         Scale = (int64_t)Scale >> ShiftBits;
       }
diff --git a/lib/Analysis/CodeMetrics.cpp b/lib/Analysis/CodeMetrics.cpp
index 651a54be1b..d669268496 100644
--- a/lib/Analysis/CodeMetrics.cpp
+++ b/lib/Analysis/CodeMetrics.cpp
@@ -91,14 +91,16 @@ bool llvm::isInstructionFree(const Instruction *I, const DataLayout *TD) {
     // which doesn't contain values outside the range of a pointer.
     if (isa<IntToPtrInst>(CI) && TD &&
         TD->isLegalInteger(Op->getType()->getScalarSizeInBits()) &&
-        Op->getType()->getScalarSizeInBits() <= TD->getPointerSizeInBits())
+        Op->getType()->getScalarSizeInBits() <= TD->getPointerSizeInBits(
+          cast<IntToPtrInst>(CI)->getAddressSpace()))
       return true;
 
     // A ptrtoint cast is free so long as the result is large enough to store
     // the pointer, and a legal integer type.
     if (isa<PtrToIntInst>(CI) && TD &&
         TD->isLegalInteger(Op->getType()->getScalarSizeInBits()) &&
-        Op->getType()->getScalarSizeInBits() >= TD->getPointerSizeInBits())
+        Op->getType()->getScalarSizeInBits() >= TD->getPointerSizeInBits(
+          cast<PtrToIntInst>(CI)->getPointerAddressSpace()))
       return true;
 
     // trunc to a native type is free (assuming the target has compare and
diff --git a/lib/Analysis/ConstantFolding.cpp b/lib/Analysis/ConstantFolding.cpp
index b7bf044a36..146897ad67 100644
--- a/lib/Analysis/ConstantFolding.cpp
+++ b/lib/Analysis/ConstantFolding.cpp
@@ -916,10 +916,11 @@ Constant *llvm::ConstantFoldInstOperands(unsigned Opcode, Type *DestTy,
       if (TD && CE->getOpcode() == Instruction::IntToPtr) {
         Constant *Input = CE->getOperand(0);
         unsigned InWidth = Input->getType()->getScalarSizeInBits();
-        if (TD->getPointerSizeInBits() < InWidth) {
+        unsigned AS = cast<PointerType>(CE->getType())->getAddressSpace();
+        if (TD->getPointerSizeInBits(AS) < InWidth) {
           Constant *Mask = 
             ConstantInt::get(CE->getContext(), APInt::getLowBitsSet(InWidth,
-                                                  TD->getPointerSizeInBits()));
+                                                  TD->getPointerSizeInBits(AS)));
           Input = ConstantExpr::getAnd(Input, Mask);
         }
         // Do a zext or trunc to get to the dest size.
@@ -932,9 +933,10 @@ Constant *llvm::ConstantFoldInstOperands(unsigned Opcode, Type *DestTy,
     // the int size is >= the ptr size.  This requires knowing the width of a
     // pointer, so it can't be done in ConstantExpr::getCast.
     if (ConstantExpr *CE = dyn_cast<ConstantExpr>(Ops[0]))
-      if (TD &&
-          TD->getPointerSizeInBits() <= CE->getType()->getScalarSizeInBits() &&
-          CE->getOpcode() == Instruction::PtrToInt)
+      if (TD && CE->getOpcode() == Instruction::PtrToInt &&
+          TD->getPointerSizeInBits(
+            cast<PointerType>(CE->getOperand(0)->getType())->getAddressSpace())
+          <= CE->getType()->getScalarSizeInBits())
         return FoldBitCast(CE->getOperand(0), DestTy, *TD);
 
     return ConstantExpr::getCast(Opcode, Ops[0], DestTy);
diff --git a/lib/Analysis/InlineCost.cpp b/lib/Analysis/InlineCost.cpp
index 5f51f775f1..95e58022ca 100644
--- a/lib/Analysis/InlineCost.cpp
+++ b/lib/Analysis/InlineCost.cpp
@@ -243,7 +243,8 @@ bool CallAnalyzer::accumulateGEPOffset(GEPOperator &GEP, APInt &Offset) {
   if (!TD)
     return false;
 
-  unsigned IntPtrWidth = TD->getPointerSizeInBits();
+  unsigned AS = GEP.getPointerAddressSpace();
+  unsigned IntPtrWidth = TD->getPointerSizeInBits(AS);
   assert(IntPtrWidth == Offset.getBitWidth());
 
   for (gep_type_iterator GTI = gep_type_begin(GEP), GTE = gep_type_end(GEP);
@@ -391,7 +392,8 @@ bool CallAnalyzer::visitPtrToInt(PtrToIntInst &I) {
   // Track base/offset pairs when converted to a plain integer provided the
   // integer is large enough to represent the pointer.
   unsigned IntegerSize = I.getType()->getScalarSizeInBits();
-  if (TD && IntegerSize >= TD->getPointerSizeInBits()) {
+  unsigned AS = I.getPointerAddressSpace();
+  if (TD && IntegerSize >= TD->getPointerSizeInBits(AS)) {
     std::pair<Value *, APInt> BaseAndOffset
       = ConstantOffsetPtrs.lookup(I.getOperand(0));
     if (BaseAndOffset.first)
@@ -425,7 +427,8 @@ bool CallAnalyzer::visitIntToPtr(IntToPtrInst &I) {
   // modifications provided the integer is not too large.
   Value *Op = I.getOperand(0);
   unsigned IntegerSize = Op->getType()->getScalarSizeInBits();
-  if (TD && IntegerSize <= TD->getPointerSizeInBits()) {
+  unsigned AS = I.getAddressSpace();
+  if (TD && IntegerSize <= TD->getPointerSizeInBits(AS)) {
     std::pair<Value *, APInt> BaseAndOffset = ConstantOffsetPtrs.lookup(Op);
     if (BaseAndOffset.first)
       ConstantOffsetPtrs[&I] = BaseAndOffset;
@@ -760,7 +763,8 @@ ConstantInt *CallAnalyzer::stripAndComputeInBoundsConstantOffsets(Value *&V) {
   if (!TD || !V->getType()->isPointerTy())
     return 0;
 
-  unsigned IntPtrWidth = TD->getPointerSizeInBits();
+  unsigned AS = cast<PointerType>(V->getType())->getAddressSpace();;
+  unsigned IntPtrWidth = TD->getPointerSizeInBits(AS);
   APInt Offset = APInt::getNullValue(IntPtrWidth);
 
   // Even though we don't look through PHI nodes, we could be called on an
@@ -824,7 +828,8 @@ bool CallAnalyzer::analyzeCall(CallSite CS) {
         // size of the byval type by the target's pointer size.
         PointerType *PTy = cast<PointerType>(CS.getArgument(I)->getType());
         unsigned TypeSize = TD->getTypeSizeInBits(PTy->getElementType());
-        unsigned PointerSize = TD->getPointerSizeInBits();
+        unsigned AS = PTy->getAddressSpace();
+        unsigned PointerSize = TD->getPointerSizeInBits(AS);
         // Ceiling division.
         unsigned NumStores = (TypeSize + PointerSize - 1) / PointerSize;
 
diff --git a/lib/Analysis/InstructionSimplify.cpp b/lib/Analysis/InstructionSimplify.cpp
index b3d62487fc..8e326122fa 100644
--- a/lib/Analysis/InstructionSimplify.cpp
+++ b/lib/Analysis/InstructionSimplify.cpp
@@ -666,7 +666,8 @@ Value *llvm::SimplifyAddInst(Value *Op0, Value *Op1, bool isNSW, bool isNUW,
 /// 'Offset' APInt must be the bitwidth of the target's pointer size.
 static bool accumulateGEPOffset(const DataLayout &TD, GEPOperator *GEP,
                                 APInt &Offset) {
-  unsigned IntPtrWidth = TD.getPointerSizeInBits();
+  unsigned AS = GEP->getPointerAddressSpace();
+  unsigned IntPtrWidth = TD.getPointerSizeInBits(AS);
   assert(IntPtrWidth == Offset.getBitWidth());
 
   gep_type_iterator GTI = gep_type_begin(GEP);
@@ -696,12 +697,14 @@ static bool accumulateGEPOffset(const DataLayout &TD, GEPOperator *GEP,
 /// accumulates the total constant offset applied in the returned constant. It
 /// returns 0 if V is not a pointer, and returns the constant '0' if there are
 /// no constant offsets applied.
+/// FIXME: This function also exists in InlineCost.cpp.
 static Constant *stripAndComputeConstantOffsets(const DataLayout &TD,
                                                 Value *&V) {
   if (!V->getType()->isPointerTy())
     return 0;
 
-  unsigned IntPtrWidth = TD.getPointerSizeInBits();
+  unsigned AS = cast<PointerType>(V->getType())->getAddressSpace();;
+  unsigned IntPtrWidth = TD.getPointerSizeInBits(AS);
   APInt Offset = APInt::getNullValue(IntPtrWidth);
 
   // Even though we don't look through PHI nodes, we could be called on an
@@ -1877,7 +1880,9 @@ static Value *SimplifyICmpInst(unsigned Predicate, Value *LHS, Value *RHS,
     // Turn icmp (ptrtoint x), (ptrtoint/constant) into a compare of the input
     // if the integer type is the same size as the pointer type.
     if (MaxRecurse && Q.TD && isa<PtrToIntInst>(LI) &&
-        Q.TD->getPointerSizeInBits() == DstTy->getPrimitiveSizeInBits()) {
+        Q.TD->getPointerSizeInBits(
+          cast<PtrToIntInst>(LI)->getPointerAddressSpace()) ==
+        DstTy->getPrimitiveSizeInBits()) {
       if (Constant *RHSC = dyn_cast<Constant>(RHS)) {
         // Transfer the cast to the constant.
         if (Value *V = SimplifyICmpInst(Pred, SrcOp,
diff --git a/lib/Analysis/ValueTracking.cpp b/lib/Analysis/ValueTracking.cpp
index 951b442b87..1d7f0692cb 100644
--- a/lib/Analysis/ValueTracking.cpp
+++ b/lib/Analysis/ValueTracking.cpp
@@ -40,7 +40,8 @@ static unsigned getBitWidth(Type *Ty, const DataLayout *TD) {
   if (unsigned BitWidth = Ty->getScalarSizeInBits())
     return BitWidth;
   assert(isa<PointerType>(Ty) && "Expected a pointer type!");
-  return TD ? TD->getPointerSizeInBits() : 0;
+  return TD ?
+    TD->getPointerSizeInBits(cast<PointerType>(Ty)->getAddressSpace()) : 0;
 }
 
 static void ComputeMaskedBitsAddSub(bool Add, Value *Op0, Value *Op1, bool NSW,
@@ -1621,7 +1622,8 @@ Value *llvm::GetPointerBaseWithConstantOffset(Value *Ptr, int64_t &Offset,
   
   // Re-sign extend from the pointer size if needed to get overflow edge cases
   // right.
-  unsigned PtrSize = TD.getPointerSizeInBits();
+  unsigned AS = GEP->getPointerAddressSpace();
+  unsigned PtrSize = TD.getPointerSizeInBits(AS);
   if (PtrSize < 64)
     Offset = SignExtend64(Offset, PtrSize);
   
diff --git a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
index d74a70362a..4de98da655 100644
--- a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
+++ b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
@@ -385,7 +385,8 @@ void AsmPrinter::EmitGlobalVariable(const GlobalVariable *GV) {
     //   - __tlv_bootstrap - used to make sure support exists
     //   - spare pointer, used when mapped by the runtime
     //   - pointer to mangled symbol above with initializer
-    unsigned PtrSize = TD->getPointerSizeInBits()/8;
+    unsigned AS = GV->getType()->getAddressSpace();
+    unsigned PtrSize = TD->getPointerSizeInBits(AS)/8;
     OutStreamer.EmitSymbolValue(GetExternalSymbolSymbol("_tlv_bootstrap"),
                           PtrSize, 0);
     OutStreamer.EmitIntValue(0, PtrSize, 0);
@@ -1299,7 +1300,7 @@ void AsmPrinter::EmitXXStructorList(const Constant *List, bool isCtor) {
 
   // Emit the function pointers in the target-specific order
   const DataLayout *TD = TM.getDataLayout();
-  unsigned Align = Log2_32(TD->getPointerPrefAlignment());
+  unsigned Align = Log2_32(TD->getPointerPrefAlignment(0));
   std::stable_sort(Structors.begin(), Structors.end(), priority_order);
   for (unsigned i = 0, e = Structors.size(); i != e; ++i) {
     const MCSection *OutputSection =
@@ -1480,8 +1481,9 @@ static const MCExpr *lowerConstant(const Constant *CV, AsmPrinter &AP) {
     if (Offset == 0)
       return Base;
 
+    unsigned AS = cast<PointerType>(CE->getType())->getAddressSpace();
     // Truncate/sext the offset to the pointer size.
-    unsigned Width = TD.getPointerSizeInBits();
+    unsigned Width = TD.getPointerSizeInBits(AS);
     if (Width < 64)
       Offset = SignExtend64(Offset, Width);
 
diff --git a/lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp b/lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp
index d94e1fe61b..6c17af2e8c 100644
--- a/lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp
+++ b/lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp
@@ -112,7 +112,7 @@ unsigned AsmPrinter::GetSizeOfEncodedValue(unsigned Encoding) const {
   
   switch (Encoding & 0x07) {
   default: llvm_unreachable("Invalid encoded value.");
-  case dwarf::DW_EH_PE_absptr: return TM.getDataLayout()->getPointerSize();
+  case dwarf::DW_EH_PE_absptr: return TM.getDataLayout()->getPointerSize(0);
   case dwarf::DW_EH_PE_udata2: return 2;
   case dwarf::DW_EH_PE_udata4: return 4;
   case dwarf::DW_EH_PE_udata8: return 8;
diff --git a/lib/CodeGen/AsmPrinter/DIE.cpp b/lib/CodeGen/AsmPrinter/DIE.cpp
index 4d73b3c222..73e18cd817 100644
--- a/lib/CodeGen/AsmPrinter/DIE.cpp
+++ b/lib/CodeGen/AsmPrinter/DIE.cpp
@@ -200,7 +200,7 @@ void DIEInteger::EmitValue(AsmPrinter *Asm, unsigned Form) const {
   case dwarf::DW_FORM_udata: Asm->EmitULEB128(Integer); return;
   case dwarf::DW_FORM_sdata: Asm->EmitSLEB128(Integer); return;
   case dwarf::DW_FORM_addr:
-    Size = Asm->getDataLayout().getPointerSize(); break;
+    Size = Asm->getDataLayout().getPointerSize(0); break;
   default: llvm_unreachable("DIE Value form not supported yet");
   }
   Asm->OutStreamer.EmitIntValue(Integer, Size, 0/*addrspace*/);
@@ -222,7 +222,7 @@ unsigned DIEInteger::SizeOf(AsmPrinter *AP, unsigned Form) const {
   case dwarf::DW_FORM_data8: return sizeof(int64_t);
   case dwarf::DW_FORM_udata: return MCAsmInfo::getULEB128Size(Integer);
   case dwarf::DW_FORM_sdata: return MCAsmInfo::getSLEB128Size(Integer);
-  case dwarf::DW_FORM_addr:  return AP->getDataLayout().getPointerSize();
+  case dwarf::DW_FORM_addr:  return AP->getDataLayout().getPointerSize(0);
   default: llvm_unreachable("DIE Value form not supported yet");
   }
 }
@@ -249,7 +249,7 @@ void DIELabel::EmitValue(AsmPrinter *AP, unsigned Form) const {
 unsigned DIELabel::SizeOf(AsmPrinter *AP, unsigned Form) const {
   if (Form == dwarf::DW_FORM_data4) return 4;
   if (Form == dwarf::DW_FORM_strp) return 4;
-  return AP->getDataLayout().getPointerSize();
+  return AP->getDataLayout().getPointerSize(0);
 }
 
 #ifndef NDEBUG
@@ -273,7 +273,7 @@ void DIEDelta::EmitValue(AsmPrinter *AP, unsigned Form) const {
 unsigned DIEDelta::SizeOf(AsmPrinter *AP, unsigned Form) const {
   if (Form == dwarf::DW_FORM_data4) return 4;
   if (Form == dwarf::DW_FORM_strp) return 4;
-  return AP->getDataLayout().getPointerSize();
+  return AP->getDataLayout().getPointerSize(0);
 }
 
 #ifndef NDEBUG
diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index 6acf19ee8c..df162e07a8 100644
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -384,7 +384,7 @@ DIE *DwarfDebug::constructLexicalScopeDIE(CompileUnit *TheCU,
     // DW_AT_ranges appropriately.
     TheCU->addUInt(ScopeDIE, dwarf::DW_AT_ranges, dwarf::DW_FORM_data4,
                    DebugRangeSymbols.size() 
-                   * Asm->getDataLayout().getPointerSize());
+                   * Asm->getDataLayout().getPointerSize(0));
     for (SmallVector<InsnRange, 4>::const_iterator RI = Ranges.begin(),
          RE = Ranges.end(); RI != RE; ++RI) {
       DebugRangeSymbols.push_back(getLabelBeforeInsn(RI->first));
@@ -450,7 +450,7 @@ DIE *DwarfDebug::constructInlinedScopeDIE(CompileUnit *TheCU,
     // DW_AT_ranges appropriately.
     TheCU->addUInt(ScopeDIE, dwarf::DW_AT_ranges, dwarf::DW_FORM_data4,
                    DebugRangeSymbols.size() 
-                   * Asm->getDataLayout().getPointerSize());
+                   * Asm->getDataLayout().getPointerSize(0));
     for (SmallVector<InsnRange, 4>::const_iterator RI = Ranges.begin(),
          RE = Ranges.end(); RI != RE; ++RI) {
       DebugRangeSymbols.push_back(getLabelBeforeInsn(RI->first));
@@ -1765,7 +1765,7 @@ void DwarfDebug::emitDebugInfo() {
     Asm->EmitSectionOffset(Asm->GetTempSymbol("abbrev_begin"),
                            DwarfAbbrevSectionSym);
     Asm->OutStreamer.AddComment("Address Size (in bytes)");
-    Asm->EmitInt8(Asm->getDataLayout().getPointerSize());
+    Asm->EmitInt8(Asm->getDataLayout().getPointerSize(0));
 
     emitDIE(Die);
     Asm->OutStreamer.EmitLabel(Asm->GetTempSymbol("info_end", TheCU->getID()));
@@ -1811,14 +1811,14 @@ void DwarfDebug::emitEndOfLineMatrix(unsigned SectionEnd) {
   Asm->EmitInt8(0);
 
   Asm->OutStreamer.AddComment("Op size");
-  Asm->EmitInt8(Asm->getDataLayout().getPointerSize() + 1);
+  Asm->EmitInt8(Asm->getDataLayout().getPointerSize(0) + 1);
   Asm->OutStreamer.AddComment("DW_LNE_set_address");
   Asm->EmitInt8(dwarf::DW_LNE_set_address);
 
   Asm->OutStreamer.AddComment("Section end label");
 
   Asm->OutStreamer.EmitSymbolValue(Asm->GetTempSymbol("section_end",SectionEnd),
-                                   Asm->getDataLayout().getPointerSize(),
+                                   Asm->getDataLayout().getPointerSize(0),
                                    0/*AddrSpace*/);
 
   // Mark end of matrix.
@@ -2047,7 +2047,7 @@ void DwarfDebug::emitDebugLoc() {
   // Start the dwarf loc section.
   Asm->OutStreamer.SwitchSection(
     Asm->getObjFileLowering().getDwarfLocSection());
-  unsigned char Size = Asm->getDataLayout().getPointerSize();
+  unsigned char Size = Asm->getDataLayout().getPointerSize(0);
   Asm->OutStreamer.EmitLabel(Asm->GetTempSymbol("debug_loc", 0));
   unsigned index = 1;
   for (SmallVector<DotDebugLocEntry, 4>::iterator
@@ -2144,7 +2144,7 @@ void DwarfDebug::emitDebugRanges() {
   // Start the dwarf ranges section.
   Asm->OutStreamer.SwitchSection(
     Asm->getObjFileLowering().getDwarfRangesSection());
-  unsigned char Size = Asm->getDataLayout().getPointerSize();
+  unsigned char Size = Asm->getDataLayout().getPointerSize(0);
   for (SmallVector<const MCSymbol *, 8>::iterator
          I = DebugRangeSymbols.begin(), E = DebugRangeSymbols.end();
        I != E; ++I) {
@@ -2202,7 +2202,7 @@ void DwarfDebug::emitDebugInlineInfo() {
   Asm->OutStreamer.AddComment("Dwarf Version");
   Asm->EmitInt16(dwarf::DWARF_VERSION);
   Asm->OutStreamer.AddComment("Address Size (in bytes)");
-  Asm->EmitInt8(Asm->getDataLayout().getPointerSize());
+  Asm->EmitInt8(Asm->getDataLayout().getPointerSize(0));
 
   for (SmallVector<const MDNode *, 4>::iterator I = InlinedSPNodes.begin(),
          E = InlinedSPNodes.end(); I != E; ++I) {
@@ -2233,7 +2233,7 @@ void DwarfDebug::emitDebugInlineInfo() {
 
       if (Asm->isVerbose()) Asm->OutStreamer.AddComment("low_pc");
       Asm->OutStreamer.EmitSymbolValue(LI->first,
-                                       Asm->getDataLayout().getPointerSize(),0);
+                                       Asm->getDataLayout().getPointerSize(0),0);
     }
   }
 
diff --git a/lib/CodeGen/AsmPrinter/DwarfException.cpp b/lib/CodeGen/AsmPrinter/DwarfException.cpp
index 08fb6b3f52..31d07141a1 100644
--- a/lib/CodeGen/AsmPrinter/DwarfException.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfException.cpp
@@ -417,7 +417,7 @@ void DwarfException::EmitExceptionTable() {
     // that we're omitting that bit.
     TTypeEncoding = dwarf::DW_EH_PE_omit;
     // dwarf::DW_EH_PE_absptr
-    TypeFormatSize = Asm->getDataLayout().getPointerSize();
+    TypeFormatSize = Asm->getDataLayout().getPointerSize(0);
   } else {
     // Okay, we have actual filters or typeinfos to emit.  As such, we need to
     // pick a type encoding for them.  We're about to emit a list of pointers to
diff --git a/lib/CodeGen/AsmPrinter/OcamlGCPrinter.cpp b/lib/CodeGen/AsmPrinter/OcamlGCPrinter.cpp
index f7c011968c..d0e27d1d04 100644
--- a/lib/CodeGen/AsmPrinter/OcamlGCPrinter.cpp
+++ b/lib/CodeGen/AsmPrinter/OcamlGCPrinter.cpp
@@ -91,7 +91,7 @@ void OcamlGCMetadataPrinter::beginAssembly(AsmPrinter &AP) {
 /// either condition is detected in a function which uses the GC.
 ///
 void OcamlGCMetadataPrinter::finishAssembly(AsmPrinter &AP) {
-  unsigned IntPtrSize = AP.TM.getDataLayout()->getPointerSize();
+  unsigned IntPtrSize = AP.TM.getDataLayout()->getPointerSize(0);
 
   AP.OutStreamer.SwitchSection(AP.getObjFileLowering().getTextSection());
   EmitCamlGlobal(getModule(), AP, "code_end");
diff --git a/lib/CodeGen/MachineFunction.cpp b/lib/CodeGen/MachineFunction.cpp
index 91d5211857..f11785070b 100644
--- a/lib/CodeGen/MachineFunction.cpp
+++ b/lib/CodeGen/MachineFunction.cpp
@@ -550,7 +550,7 @@ unsigned MachineJumpTableInfo::getEntrySize(const DataLayout &TD) const {
   // address of a block, in which case it is the pointer size.
   switch (getEntryKind()) {
   case MachineJumpTableInfo::EK_BlockAddress:
-    return TD.getPointerSize();
+    return TD.getPointerSize(0);
   case MachineJumpTableInfo::EK_GPRel64BlockAddress:
     return 8;
   case MachineJumpTableInfo::EK_GPRel32BlockAddress:
@@ -570,7 +570,7 @@ unsigned MachineJumpTableInfo::getEntryAlignment(const DataLayout &TD) const {
   // alignment.
   switch (getEntryKind()) {
   case MachineJumpTableInfo::EK_BlockAddress:
-    return TD.getPointerABIAlignment();
+    return TD.getPointerABIAlignment(0);
   case MachineJumpTableInfo::EK_GPRel64BlockAddress:
     return TD.getABIIntegerTypeAlignment(64);
   case MachineJumpTableInfo::EK_GPRel32BlockAddress:
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index 79cfcdfe0e..183416f3fd 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -3449,9 +3449,12 @@ static bool FindOptimalMemOpLowering(std::vector<EVT> &MemOps,
   EVT VT = TLI.getOptimalMemOpType(Size, DstAlign, SrcAlign,
                                    IsZeroVal, MemcpyStrSrc,
                                    DAG.getMachineFunction());
+  Type *vtType = VT.isExtended() ? VT.getTypeForEVT(*DAG.getContext()) : NULL;
+  unsigned AS = (vtType && vtType->isPointerTy()) ?
+    cast<PointerType>(vtType)->getAddressSpace() : 0;
 
   if (VT == MVT::Other) {
-    if (DstAlign >= TLI.getDataLayout()->getPointerPrefAlignment() ||
+    if (DstAlign >= TLI.getDataLayout()->getPointerPrefAlignment(AS) ||
         TLI.allowsUnalignedMemoryAccesses(VT)) {
       VT = TLI.getPointerTy();
     } else {
diff --git a/lib/CodeGen/TargetLoweringObjectFileImpl.cpp b/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
index 8f5d770f66..bf26a6d592 100644
--- a/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
+++ b/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
@@ -77,9 +77,9 @@ void TargetLoweringObjectFileELF::emitPersonalityValue(MCStreamer &Streamer,
                                                     Flags,
                                                     SectionKind::getDataRel(),
                                                     0, Label->getName());
-  unsigned Size = TM.getDataLayout()->getPointerSize();
+  unsigned Size = TM.getDataLayout()->getPointerSize(0);
   Streamer.SwitchSection(Sec);
-  Streamer.EmitValueToAlignment(TM.getDataLayout()->getPointerABIAlignment());
+  Streamer.EmitValueToAlignment(TM.getDataLayout()->getPointerABIAlignment(0));
   Streamer.EmitSymbolAttribute(Label, MCSA_ELF_TypeObject);
   const MCExpr *E = MCConstantExpr::Create(Size, getContext());
   Streamer.EmitELFSize(Label, E);
diff --git a/lib/ExecutionEngine/ExecutionEngine.cpp b/lib/ExecutionEngine/ExecutionEngine.cpp
index c5c46815a2..94a2542e7a 100644
--- a/lib/ExecutionEngine/ExecutionEngine.cpp
+++ b/lib/ExecutionEngine/ExecutionEngine.cpp
@@ -17,6 +17,7 @@
 
 #include "llvm/Constants.h"
 #include "llvm/DerivedTypes.h"
+#include "llvm/Instructions.h"
 #include "llvm/Module.h"
 #include "llvm/ExecutionEngine/GenericValue.h"
 #include "llvm/ADT/SmallString.h"
@@ -267,7 +268,7 @@ public:
 void *ArgvArray::reset(LLVMContext &C, ExecutionEngine *EE,
                        const std::vector<std::string> &InputArgv) {
   clear();  // Free the old contents.
-  unsigned PtrSize = EE->getDataLayout()->getPointerSize();
+  unsigned PtrSize = EE->getDataLayout()->getPointerSize(0);
   Array = new char[(InputArgv.size()+1)*PtrSize];
 
   DEBUG(dbgs() << "JIT: ARGV = " << (void*)Array << "\n");
@@ -342,7 +343,7 @@ void ExecutionEngine::runStaticConstructorsDestructors(bool isDtors) {
 #ifndef NDEBUG
 /// isTargetNullPtr - Return whether the target pointer stored at Loc is null.
 static bool isTargetNullPtr(ExecutionEngine *EE, void *Loc) {
-  unsigned PtrSize = EE->getDataLayout()->getPointerSize();
+  unsigned PtrSize = EE->getDataLayout()->getPointerSize(0);
   for (unsigned i = 0; i < PtrSize; ++i)
     if (*(i + (uint8_t*)Loc))
       return false;
@@ -644,13 +645,16 @@ GenericValue ExecutionEngine::getConstantValue(const Constant *C) {
     }
     case Instruction::PtrToInt: {
       GenericValue GV = getConstantValue(Op0);
-      uint32_t PtrWidth = TD->getPointerSizeInBits();
+      unsigned AS = cast<PointerType>(CE->getOperand(1)->getType())
+        ->getAddressSpace();
+      uint32_t PtrWidth = TD->getPointerSizeInBits(AS);
       GV.IntVal = APInt(PtrWidth, uintptr_t(GV.PointerVal));
       return GV;
     }
     case Instruction::IntToPtr: {
       GenericValue GV = getConstantValue(Op0);
-      uint32_t PtrWidth = TD->getPointerSizeInBits();
+      unsigned AS = cast<PointerType>(CE->getType())->getAddressSpace();
+      uint32_t PtrWidth = TD->getPointerSizeInBits(AS);
       if (PtrWidth != GV.IntVal.getBitWidth())
         GV.IntVal = GV.IntVal.zextOrTrunc(PtrWidth);
       assert(GV.IntVal.getBitWidth() <= 64 && "Bad pointer width");
diff --git a/lib/ExecutionEngine/Interpreter/Execution.cpp b/lib/ExecutionEngine/Interpreter/Execution.cpp
index 5202b09165..326bf79c58 100644
--- a/lib/ExecutionEngine/Interpreter/Execution.cpp
+++ b/lib/ExecutionEngine/Interpreter/Execution.cpp
@@ -1054,7 +1054,8 @@ GenericValue Interpreter::executeIntToPtrInst(Value *SrcVal, Type *DstTy,
   GenericValue Dest, Src = getOperandValue(SrcVal, SF);
   assert(DstTy->isPointerTy() && "Invalid PtrToInt instruction");
 
-  uint32_t PtrSize = TD.getPointerSizeInBits();
+  unsigned AS = cast<PointerType>(DstTy)->getAddressSpace();
+  uint32_t PtrSize = TD.getPointerSizeInBits(AS);
   if (PtrSize != Src.IntVal.getBitWidth())
     Src.IntVal = Src.IntVal.zextOrTrunc(PtrSize);
 
diff --git a/lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp b/lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp
index e16e2d112a..f58adbe1e1 100644
--- a/lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp
+++ b/lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp
@@ -376,7 +376,7 @@ GenericValue lle_X_sprintf(FunctionType *FT,
       case 'x': case 'X':
         if (HowLong >= 1) {
           if (HowLong == 1 &&
-              TheInterpreter->getDataLayout()->getPointerSizeInBits() == 64 &&
+              TheInterpreter->getDataLayout()->getPointerSizeInBits(0) == 64 &&
               sizeof(long) < sizeof(int64_t)) {
             // Make sure we use %lld with a 64 bit argument because we might be
             // compiling LLI on a 32 bit compiler.
diff --git a/lib/ExecutionEngine/JIT/JITDwarfEmitter.cpp b/lib/ExecutionEngine/JIT/JITDwarfEmitter.cpp
index 19c197903a..bcd5b26365 100644
--- a/lib/ExecutionEngine/JIT/JITDwarfEmitter.cpp
+++ b/lib/ExecutionEngine/JIT/JITDwarfEmitter.cpp
@@ -14,7 +14,9 @@
 
 #include "JIT.h"
 #include "JITDwarfEmitter.h"
+#include "llvm/DerivedTypes.h"
 #include "llvm/Function.h"
+#include "llvm/GlobalVariable.h"
 #include "llvm/ADT/DenseMap.h"
 #include "llvm/CodeGen/JITCodeEmitter.h"
 #include "llvm/CodeGen/MachineFunction.h"
@@ -66,7 +68,7 @@ unsigned char* JITDwarfEmitter::EmitDwarfTable(MachineFunction& F,
 void
 JITDwarfEmitter::EmitFrameMoves(intptr_t BaseLabelPtr,
                                 const std::vector<MachineMove> &Moves) const {
-  unsigned PointerSize = TD->getPointerSize();
+  unsigned PointerSize = TD->getPointerSize(0);
   int stackGrowth = stackGrowthDirection == TargetFrameLowering::StackGrowsUp ?
           PointerSize : -PointerSize;
   MCSymbol *BaseLabel = 0;
@@ -378,7 +380,7 @@ unsigned char* JITDwarfEmitter::EmitExceptionTable(MachineFunction* MF,
   for (unsigned i = 0, e = CallSites.size(); i < e; ++i)
     SizeSites += MCAsmInfo::getULEB128Size(CallSites[i].Action);
 
-  unsigned SizeTypes = TypeInfos.size() * TD->getPointerSize();
+  unsigned SizeTypes = TypeInfos.size() * TD->getPointerSize(0);
 
   unsigned TypeOffset = sizeof(int8_t) + // Call site format
                         // Call-site table length
@@ -454,12 +456,12 @@ unsigned char* JITDwarfEmitter::EmitExceptionTable(MachineFunction* MF,
     const GlobalVariable *GV = TypeInfos[M - 1];
 
     if (GV) {
-      if (TD->getPointerSize() == sizeof(int32_t))
+      if (TD->getPointerSize(GV->getType()->getAddressSpace()) == sizeof(int32_t))
         JCE->emitInt32((intptr_t)Jit.getOrEmitGlobalVariable(GV));
       else
         JCE->emitInt64((intptr_t)Jit.getOrEmitGlobalVariable(GV));
     } else {
-      if (TD->getPointerSize() == sizeof(int32_t))
+      if (TD->getPointerSize(0) == sizeof(int32_t))
         JCE->emitInt32(0);
       else
         JCE->emitInt64(0);
@@ -481,7 +483,7 @@ unsigned char* JITDwarfEmitter::EmitExceptionTable(MachineFunction* MF,
 
 unsigned char*
 JITDwarfEmitter::EmitCommonEHFrame(const Function* Personality) const {
-  unsigned PointerSize = TD->getPointerSize();
+  unsigned PointerSize = TD->getPointerSize(0);
   int stackGrowth = stackGrowthDirection == TargetFrameLowering::StackGrowsUp ?
           PointerSize : -PointerSize;
 
@@ -541,7 +543,7 @@ JITDwarfEmitter::EmitEHFrame(const Function* Personality,
                              unsigned char* StartFunction,
                              unsigned char* EndFunction,
                              unsigned char* ExceptionTable) const {
-  unsigned PointerSize = TD->getPointerSize();
+  unsigned PointerSize = TD->getPointerSize(0);
 
   // EH frame header.
   unsigned char* StartEHPtr = (unsigned char*)JCE->getCurrentPCValue();
diff --git a/lib/Target/ARM/ARMELFWriterInfo.cpp b/lib/Target/ARM/ARMELFWriterInfo.cpp
index d88bf0c8fa..7bca0edf91 100644
--- a/lib/Target/ARM/ARMELFWriterInfo.cpp
+++ b/lib/Target/ARM/ARMELFWriterInfo.cpp
@@ -26,7 +26,7 @@ using namespace llvm;
 //===----------------------------------------------------------------------===//
 
 ARMELFWriterInfo::ARMELFWriterInfo(TargetMachine &TM)
-  : TargetELFWriterInfo(TM.getDataLayout()->getPointerSizeInBits() == 64,
+  : TargetELFWriterInfo(TM.getDataLayout()->getPointerSizeInBits(0) == 64,
                         TM.getDataLayout()->isLittleEndian()) {
 }
 
diff --git a/lib/Target/MBlaze/MBlazeELFWriterInfo.cpp b/lib/Target/MBlaze/MBlazeELFWriterInfo.cpp
index 4ca30ba81f..6b575099e5 100644
--- a/lib/Target/MBlaze/MBlazeELFWriterInfo.cpp
+++ b/lib/Target/MBlaze/MBlazeELFWriterInfo.cpp
@@ -26,7 +26,7 @@ using namespace llvm;
 //===----------------------------------------------------------------------===//
 
 MBlazeELFWriterInfo::MBlazeELFWriterInfo(TargetMachine &TM)
-  : TargetELFWriterInfo(TM.getDataLayout()->getPointerSizeInBits() == 64,
+  : TargetELFWriterInfo(TM.getDataLayout()->getPointerSizeInBits(0) == 64,
                         TM.getDataLayout()->isLittleEndian()) {
 }
 
diff --git a/lib/Target/MSP430/MSP430ISelLowering.cpp b/lib/Target/MSP430/MSP430ISelLowering.cpp
index fc677aec38..113378a5f3 100644
--- a/lib/Target/MSP430/MSP430ISelLowering.cpp
+++ b/lib/Target/MSP430/MSP430ISelLowering.cpp
@@ -881,7 +881,7 @@ MSP430TargetLowering::getReturnAddressFrameIndex(SelectionDAG &DAG) const {
 
   if (ReturnAddrIndex == 0) {
     // Set up a frame object for the return address.
-    uint64_t SlotSize = TD->getPointerSize();
+    uint64_t SlotSize = TD->getPointerSize(0);
     ReturnAddrIndex = MF.getFrameInfo()->CreateFixedObject(SlotSize, -SlotSize,
                                                            true);
     FuncInfo->setRAIndex(ReturnAddrIndex);
@@ -901,7 +901,7 @@ SDValue MSP430TargetLowering::LowerRETURNADDR(SDValue Op,
   if (Depth > 0) {
     SDValue FrameAddr = LowerFRAMEADDR(Op, DAG);
     SDValue Offset =
-      DAG.getConstant(TD->getPointerSize(), MVT::i16);
+      DAG.getConstant(TD->getPointerSize(0), MVT::i16);
     return DAG.getLoad(getPointerTy(), dl, DAG.getEntryNode(),
                        DAG.getNode(ISD::ADD, dl, getPointerTy(),
                                    FrameAddr, Offset),
diff --git a/lib/Target/NVPTX/NVPTXAsmPrinter.cpp b/lib/Target/NVPTX/NVPTXAsmPrinter.cpp
index d3dfb35e26..c46094569e 100644
--- a/lib/Target/NVPTX/NVPTXAsmPrinter.cpp
+++ b/lib/Target/NVPTX/NVPTXAsmPrinter.cpp
@@ -126,8 +126,10 @@ const MCExpr *nvptx::LowerConstant(const Constant *CV, AsmPrinter &AP) {
       return Base;
 
     // Truncate/sext the offset to the pointer size.
-    if (TD.getPointerSizeInBits() != 64) {
-      int SExtAmount = 64-TD.getPointerSizeInBits();
+    unsigned AS = PtrVal->getType()->isPointerTy() ?
+      cast<PointerType>(PtrVal->getType())->getAddressSpace() : 0;
+    if (TD.getPointerSizeInBits(AS) != 64) {
+      int SExtAmount = 64-TD.getPointerSizeInBits(AS);
       Offset = (Offset << SExtAmount) >> SExtAmount;
     }
 
@@ -1378,7 +1380,7 @@ getOpenCLAlignment(const DataLayout *TD,
 
   const FunctionType *FTy = dyn_cast<FunctionType>(Ty);
   if (FTy)
-    return TD->getPointerPrefAlignment();
+    return TD->getPointerPrefAlignment(0);
   return TD->getPrefTypeAlignment(Ty);
 }
 
diff --git a/lib/Target/PowerPC/PPCAsmPrinter.cpp b/lib/Target/PowerPC/PPCAsmPrinter.cpp
index d877e45fad..d8abd9fba0 100644
--- a/lib/Target/PowerPC/PPCAsmPrinter.cpp
+++ b/lib/Target/PowerPC/PPCAsmPrinter.cpp
@@ -439,7 +439,7 @@ void PPCLinuxAsmPrinter::EmitFunctionEntryLabel() {
 bool PPCLinuxAsmPrinter::doFinalization(Module &M) {
   const DataLayout *TD = TM.getDataLayout();
 
-  bool isPPC64 = TD->getPointerSizeInBits() == 64;
+  bool isPPC64 = TD->getPointerSizeInBits(0) == 64;
 
   if (isPPC64 && !TOC.empty()) {
     const MCSectionELF *Section = OutStreamer.getContext().getELFSection(".toc",
@@ -545,7 +545,7 @@ static MCSymbol *GetAnonSym(MCSymbol *Sym, MCContext &Ctx) {
 
 void PPCDarwinAsmPrinter::
 EmitFunctionStubs(const MachineModuleInfoMachO::SymbolListTy &Stubs) {
-  bool isPPC64 = TM.getDataLayout()->getPointerSizeInBits() == 64;
+  bool isPPC64 = TM.getDataLayout()->getPointerSizeInBits(0) == 64;
   
   const TargetLoweringObjectFileMachO &TLOFMacho = 
     static_cast<const TargetLoweringObjectFileMachO &>(getObjFileLowering());
@@ -640,7 +640,7 @@ EmitFunctionStubs(const MachineModuleInfoMachO::SymbolListTy &Stubs) {
 
 
 bool PPCDarwinAsmPrinter::doFinalization(Module &M) {
-  bool isPPC64 = TM.getDataLayout()->getPointerSizeInBits() == 64;
+  bool isPPC64 = TM.getDataLayout()->getPointerSizeInBits(0) == 64;
 
   // Darwin/PPC always uses mach-o.
   const TargetLoweringObjectFileMachO &TLOFMacho = 
diff --git a/lib/Target/PowerPC/PPCRegisterInfo.cpp b/lib/Target/PowerPC/PPCRegisterInfo.cpp
index 459c3589d3..d123211473 100644
--- a/lib/Target/PowerPC/PPCRegisterInfo.cpp
+++ b/lib/Target/PowerPC/PPCRegisterInfo.cpp
@@ -498,7 +498,7 @@ PPCRegisterInfo::hasReservedSpillSlot(const MachineFunction &MF,
     } else if (CRSpillFrameIdx) {
       FrameIdx = CRSpillFrameIdx;
     } else {
-      MachineFrameInfo *MFI = ((MachineFunction &)MF).getFrameInfo();
+      MachineFrameInfo *MFI = (const_cast<MachineFunction &>(MF)).getFrameInfo();
       FrameIdx = MFI->CreateFixedObject((uint64_t)4, (int64_t)-4, true);
       CRSpillFrameIdx = FrameIdx;
     }
diff --git a/lib/Target/Target.cpp b/lib/Target/Target.cpp
index 219cbf1afc..393178a469 100644
--- a/lib/Target/Target.cpp
+++ b/lib/Target/Target.cpp
@@ -56,13 +56,21 @@ LLVMByteOrdering LLVMByteOrder(LLVMTargetDataRef TD) {
 }
 
 unsigned LLVMPointerSize(LLVMTargetDataRef TD) {
-  return unwrap(TD)->getPointerSize();
+  return unwrap(TD)->getPointerSize(0);
+}
+
+unsigned LLVMPointerSizeForAS(LLVMTargetDataRef TD, unsigned AS) {
+  return unwrap(TD)->getPointerSize(AS);
 }
 
 LLVMTypeRef LLVMIntPtrType(LLVMTargetDataRef TD) {
   return wrap(unwrap(TD)->getIntPtrType(getGlobalContext()));
 }
 
+LLVMTypeRef LLVMIntPtrTypeForAS(LLVMTargetDataRef TD, unsigned AS) {
+  return wrap(unwrap(TD)->getIntPtrType(getGlobalContext(), AS));
+}
+
 unsigned long long LLVMSizeOfTypeInBits(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
   return unwrap(TD)->getTypeSizeInBits(unwrap(Ty));
 }
diff --git a/lib/Target/X86/X86AsmPrinter.cpp b/lib/Target/X86/X86AsmPrinter.cpp
index c704ca1701..92afac62e6 100644
--- a/lib/Target/X86/X86AsmPrinter.cpp
+++ b/lib/Target/X86/X86AsmPrinter.cpp
@@ -693,7 +693,7 @@ void X86AsmPrinter::EmitEndOfAsmFile(Module &M) {
       for (unsigned i = 0, e = Stubs.size(); i != e; ++i) {
         OutStreamer.EmitLabel(Stubs[i].first);
         OutStreamer.EmitSymbolValue(Stubs[i].second.getPointer(),
-                                    TD->getPointerSize(), 0);
+                                    TD->getPointerSize(0), 0);
       }
       Stubs.clear();
     }
diff --git a/lib/Target/X86/X86FrameLowering.cpp b/lib/Target/X86/X86FrameLowering.cpp
index 8acef9dc7b..e7f817e3a9 100644
--- a/lib/Target/X86/X86FrameLowering.cpp
+++ b/lib/Target/X86/X86FrameLowering.cpp
@@ -317,7 +317,7 @@ void X86FrameLowering::emitCalleeSavedFrameMoves(MachineFunction &MF,
   bool HasFP = hasFP(MF);
 
   // Calculate amount of bytes used for return address storing.
-  int stackGrowth = -TD->getPointerSize();
+  int stackGrowth = -TD->getPointerSize(0);
 
   // FIXME: This is dirty hack. The code itself is pretty mess right now.
   // It should be rewritten from scratch and generalized sometimes.
@@ -717,7 +717,7 @@ void X86FrameLowering::emitPrologue(MachineFunction &MF) const {
   std::vector<MachineMove> &Moves = MMI.getFrameMoves();
   const DataLayout *TD = MF.getTarget().getDataLayout();
   uint64_t NumBytes = 0;
-  int stackGrowth = -TD->getPointerSize();
+  int stackGrowth = -TD->getPointerSize(0);
 
   if (HasFP) {
     // Calculate required stack adjustment.
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index 9ec03bf8f7..7916ccdeb3 100644
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -2652,7 +2652,7 @@ X86TargetLowering::GetAlignedArgumentStackSize(unsigned StackSize,
   unsigned StackAlignment = TFI.getStackAlignment();
   uint64_t AlignMask = StackAlignment - 1;
   int64_t Offset = StackSize;
-  uint64_t SlotSize = TD->getPointerSize();
+  uint64_t SlotSize = TD->getPointerSize(0);
   if ( (Offset & AlignMask) <= (StackAlignment - SlotSize) ) {
     // Number smaller than 12 so just add the difference.
     Offset += ((StackAlignment - SlotSize) - (Offset & AlignMask));
@@ -3020,7 +3020,7 @@ SDValue X86TargetLowering::getReturnAddressFrameIndex(SelectionDAG &DAG) const {
 
   if (ReturnAddrIndex == 0) {
     // Set up a frame object for the return address.
-    uint64_t SlotSize = TD->getPointerSize();
+    uint64_t SlotSize = TD->getPointerSize(0);
     ReturnAddrIndex = MF.getFrameInfo()->CreateFixedObject(SlotSize, -SlotSize,
                                                            false);
     FuncInfo->setRAIndex(ReturnAddrIndex);
@@ -7643,7 +7643,7 @@ X86TargetLowering::LowerGlobalTLSAddress(SDValue Op, SelectionDAG &DAG) const {
       IDX = DAG.getLoad(getPointerTy(), dl, Chain, IDX, MachinePointerInfo(),
                         false, false, false, 0);
 
-    SDValue Scale = DAG.getConstant(Log2_64_Ceil(TD->getPointerSize()),
+    SDValue Scale = DAG.getConstant(Log2_64_Ceil(TD->getPointerSize(0)),
                                     getPointerTy());
     IDX = DAG.getNode(ISD::SHL, dl, getPointerTy(), IDX, Scale);
 
@@ -10293,7 +10293,7 @@ SDValue X86TargetLowering::LowerRETURNADDR(SDValue Op,
   if (Depth > 0) {
     SDValue FrameAddr = LowerFRAMEADDR(Op, DAG);
     SDValue Offset =
-      DAG.getConstant(TD->getPointerSize(),
+      DAG.getConstant(TD->getPointerSize(0),
                       Subtarget->is64Bit() ? MVT::i64 : MVT::i32);
     return DAG.getLoad(getPointerTy(), dl, DAG.getEntryNode(),
                        DAG.getNode(ISD::ADD, dl, getPointerTy(),
@@ -10325,7 +10325,7 @@ SDValue X86TargetLowering::LowerFRAMEADDR(SDValue Op, SelectionDAG &DAG) const {
 
 SDValue X86TargetLowering::LowerFRAME_TO_ARGS_OFFSET(SDValue Op,
                                                      SelectionDAG &DAG) const {
-  return DAG.getIntPtrConstant(2*TD->getPointerSize());
+  return DAG.getIntPtrConstant(2*TD->getPointerSize(0));
 }
 
 SDValue X86TargetLowering::LowerEH_RETURN(SDValue Op, SelectionDAG &DAG) const {
@@ -10340,7 +10340,7 @@ SDValue X86TargetLowering::LowerEH_RETURN(SDValue Op, SelectionDAG &DAG) const {
   unsigned StoreAddrReg = (Subtarget->is64Bit() ? X86::RCX : X86::ECX);
 
   SDValue StoreAddr = DAG.getNode(ISD::ADD, dl, getPointerTy(), Frame,
-                                  DAG.getIntPtrConstant(TD->getPointerSize()));
+                                  DAG.getIntPtrConstant(TD->getPointerSize(0)));
   StoreAddr = DAG.getNode(ISD::ADD, dl, getPointerTy(), StoreAddr, Offset);
   Chain = DAG.getStore(Chain, dl, Handler, StoreAddr, MachinePointerInfo(),
                        false, false, 0);
diff --git a/lib/Transforms/InstCombine/InstCombineCasts.cpp b/lib/Transforms/InstCombine/InstCombineCasts.cpp
index b59210a9df..f3f3f8f585 100644
--- a/lib/Transforms/InstCombine/InstCombineCasts.cpp
+++ b/lib/Transforms/InstCombine/InstCombineCasts.cpp
@@ -1293,15 +1293,16 @@ Instruction *InstCombiner::visitIntToPtr(IntToPtrInst &CI) {
   // If the source integer type is not the intptr_t type for this target, do a
   // trunc or zext to the intptr_t type, then inttoptr of it.  This allows the
   // cast to be exposed to other transforms.
+  unsigned AS = CI.getAddressSpace();
   if (TD) {
     if (CI.getOperand(0)->getType()->getScalarSizeInBits() >
-        TD->getPointerSizeInBits()) {
+        TD->getPointerSizeInBits(AS)) {
       Value *P = Builder->CreateTrunc(CI.getOperand(0),
                                       TD->getIntPtrType(CI.getContext()));
       return new IntToPtrInst(P, CI.getType());
     }
     if (CI.getOperand(0)->getType()->getScalarSizeInBits() <
-        TD->getPointerSizeInBits()) {
+        TD->getPointerSizeInBits(AS)) {
       Value *P = Builder->CreateZExt(CI.getOperand(0),
                                      TD->getIntPtrType(CI.getContext()));
       return new IntToPtrInst(P, CI.getType());
@@ -1368,13 +1369,14 @@ Instruction *InstCombiner::visitPtrToInt(PtrToIntInst &CI) {
   // If the destination integer type is not the intptr_t type for this target,
   // do a ptrtoint to intptr_t then do a trunc or zext.  This allows the cast
   // to be exposed to other transforms.
+  unsigned AS = CI.getPointerAddressSpace();
   if (TD) {
-    if (CI.getType()->getScalarSizeInBits() < TD->getPointerSizeInBits()) {
+    if (CI.getType()->getScalarSizeInBits() < TD->getPointerSizeInBits(AS)) {
       Value *P = Builder->CreatePtrToInt(CI.getOperand(0),
                                          TD->getIntPtrType(CI.getContext()));
       return new TruncInst(P, CI.getType());
     }
-    if (CI.getType()->getScalarSizeInBits() > TD->getPointerSizeInBits()) {
+    if (CI.getType()->getScalarSizeInBits() > TD->getPointerSizeInBits(AS)) {
       Value *P = Builder->CreatePtrToInt(CI.getOperand(0),
                                          TD->getIntPtrType(CI.getContext()));
       return new ZExtInst(P, CI.getType());
diff --git a/lib/Transforms/InstCombine/InstCombineCompares.cpp b/lib/Transforms/InstCombine/InstCombineCompares.cpp
index 4d5ffddc4c..e3e5ddae80 100644
--- a/lib/Transforms/InstCombine/InstCombineCompares.cpp
+++ b/lib/Transforms/InstCombine/InstCombineCompares.cpp
@@ -365,11 +365,12 @@ FoldCmpLoadFromIndexedGlobal(GetElementPtrInst *GEP, GlobalVariable *GV,
   // order the state machines in complexity of the generated code.
   Value *Idx = GEP->getOperand(2);
 
+  unsigned AS = GEP->getPointerAddressSpace();
   // If the index is larger than the pointer size of the target, truncate the
   // index down like the GEP would do implicitly.  We don't have to do this for
   // an inbounds GEP because the index can't be out of range.
   if (!GEP->isInBounds() &&
-      Idx->getType()->getPrimitiveSizeInBits() > TD->getPointerSizeInBits())
+      Idx->getType()->getPrimitiveSizeInBits() > TD->getPointerSizeInBits(AS))
     Idx = Builder->CreateTrunc(Idx, TD->getIntPtrType(Idx->getContext()));
 
   // If the comparison is only true for one or two elements, emit direct
@@ -528,10 +529,11 @@ static Value *EvaluateGEPOffsetExpression(User *GEP, InstCombiner &IC) {
     }
   }
 
+  unsigned AS = cast<GetElementPtrInst>(GEP)->getPointerAddressSpace();
   // Okay, we know we have a single variable index, which must be a
   // pointer/array/vector index.  If there is no offset, life is simple, return
   // the index.
-  unsigned IntPtrWidth = TD.getPointerSizeInBits();
+  unsigned IntPtrWidth = TD.getPointerSizeInBits(AS);
   if (Offset == 0) {
     // Cast to intptrty in case a truncation occurs.  If an extension is needed,
     // we don't need to bother extending: the extension won't affect where the
@@ -1552,7 +1554,8 @@ Instruction *InstCombiner::visitICmpInstWithCastAndCast(ICmpInst &ICI) {
   // Turn icmp (ptrtoint x), (ptrtoint/c) into a compare of the input if the
   // integer type is the same size as the pointer type.
   if (TD && LHSCI->getOpcode() == Instruction::PtrToInt &&
-      TD->getPointerSizeInBits() ==
+      TD->getPointerSizeInBits(
+        cast<PtrToIntInst>(LHSCI)->getPointerAddressSpace()) ==
          cast<IntegerType>(DestTy)->getBitWidth()) {
     Value *RHSOp = 0;
     if (Constant *RHSC = dyn_cast<Constant>(ICI.getOperand(1))) {
diff --git a/lib/Transforms/Instrumentation/AddressSanitizer.cpp b/lib/Transforms/Instrumentation/AddressSanitizer.cpp
index 6071ee5a6a..b566994edf 100644
--- a/lib/Transforms/Instrumentation/AddressSanitizer.cpp
+++ b/lib/Transforms/Instrumentation/AddressSanitizer.cpp
@@ -735,7 +735,7 @@ bool AddressSanitizer::doInitialization(Module &M) {
   BL.reset(new BlackList(ClBlackListFile));
 
   C = &(M.getContext());
-  LongSize = TD->getPointerSizeInBits();
+  LongSize = TD->getPointerSizeInBits(0);
   IntptrTy = Type::getIntNTy(*C, LongSize);
   IntptrPtrTy = PointerType::get(IntptrTy, 0);
 
diff --git a/lib/Transforms/Scalar/MemCpyOptimizer.cpp b/lib/Transforms/Scalar/MemCpyOptimizer.cpp
index 517657cf52..97fff9edd6 100644
--- a/lib/Transforms/Scalar/MemCpyOptimizer.cpp
+++ b/lib/Transforms/Scalar/MemCpyOptimizer.cpp
@@ -174,10 +174,11 @@ bool MemsetRange::isProfitableToUseMemset(const DataLayout &TD) const {
   // this width can be stored.  If so, check to see whether we will end up
   // actually reducing the number of stores used.
   unsigned Bytes = unsigned(End-Start);
-  unsigned NumPointerStores = Bytes/TD.getPointerSize();
+  unsigned AS = cast<StoreInst>(TheStores[0])->getPointerAddressSpace();
+  unsigned NumPointerStores = Bytes/TD.getPointerSize(AS);
 
   // Assume the remaining bytes if any are done a byte at a time.
-  unsigned NumByteStores = Bytes - NumPointerStores*TD.getPointerSize();
+  unsigned NumByteStores = Bytes - NumPointerStores*TD.getPointerSize(AS);
 
   // If we will reduce the # stores (according to this heuristic), do the
   // transformation.  This encourages merging 4 x i8 -> i32 and 2 x i16 -> i32
diff --git a/lib/Transforms/Scalar/SROA.cpp b/lib/Transforms/Scalar/SROA.cpp
index 7d2ce098aa..3e84a91c1d 100644
--- a/lib/Transforms/Scalar/SROA.cpp
+++ b/lib/Transforms/Scalar/SROA.cpp
@@ -447,6 +447,7 @@ protected:
 
   bool computeConstantGEPOffset(GetElementPtrInst &GEPI, int64_t &GEPOffset) {
     GEPOffset = Offset;
+    unsigned int AS = GEPI.getPointerAddressSpace();
     for (gep_type_iterator GTI = gep_type_begin(GEPI), GTE = gep_type_end(GEPI);
          GTI != GTE; ++GTI) {
       ConstantInt *OpC = dyn_cast<ConstantInt>(GTI.getOperand());
@@ -476,7 +477,7 @@ protected:
         continue;
       }
 
-      APInt Index = OpC->getValue().sextOrTrunc(TD.getPointerSizeInBits());
+      APInt Index = OpC->getValue().sextOrTrunc(TD.getPointerSizeInBits(AS));
       Index *= APInt(Index.getBitWidth(),
                      TD.getTypeAllocSize(GTI.getIndexedType()));
       Index += APInt(Index.getBitWidth(), (uint64_t)GEPOffset,
@@ -1784,7 +1785,9 @@ static Value *getNaturalGEPWithType(IRBuilder<> &IRB, const DataLayout &TD,
       break;
     if (SequentialType *SeqTy = dyn_cast<SequentialType>(ElementTy)) {
       ElementTy = SeqTy->getElementType();
-      Indices.push_back(IRB.getInt(APInt(TD.getPointerSizeInBits(), 0)));
+      Indices.push_back(IRB.getInt(APInt(TD.getPointerSizeInBits(
+                ElementTy->isPointerTy() ? 
+                cast<PointerType>(ElementTy)->getAddressSpace(): 0), 0)));
     } else if (StructType *STy = dyn_cast<StructType>(ElementTy)) {
       if (STy->element_begin() == STy->element_end())
         break; // Nothing left to descend into.
@@ -2322,7 +2325,8 @@ private:
 
   Value *getAdjustedAllocaPtr(IRBuilder<> &IRB, Type *PointerTy) {
     assert(BeginOffset >= NewAllocaBeginOffset);
-    APInt Offset(TD.getPointerSizeInBits(), BeginOffset - NewAllocaBeginOffset);
+    unsigned AS = cast<PointerType>(PointerTy)->getAddressSpace();
+    APInt Offset(TD.getPointerSizeInBits(AS), BeginOffset - NewAllocaBeginOffset);
     return getAdjustedPtr(IRB, TD, &NewAI, Offset, PointerTy, getName(""));
   }
 
@@ -2677,8 +2681,10 @@ private:
     const AllocaPartitioning::MemTransferOffsets &MTO
       = P.getMemTransferOffsets(II);
 
+    assert(OldPtr->getType()->isPointerTy() && "Must be a pointer type!");
+    unsigned AS = cast<PointerType>(OldPtr->getType())->getAddressSpace();
     // Compute the relative offset within the transfer.
-    unsigned IntPtrWidth = TD.getPointerSizeInBits();
+    unsigned IntPtrWidth = TD.getPointerSizeInBits(AS);
     APInt RelOffset(IntPtrWidth, BeginOffset - (IsDest ? MTO.DestBegin
                                                        : MTO.SourceBegin));
 
diff --git a/lib/Transforms/Utils/Local.cpp b/lib/Transforms/Utils/Local.cpp
index a954d82c05..9729687a83 100644
--- a/lib/Transforms/Utils/Local.cpp
+++ b/lib/Transforms/Utils/Local.cpp
@@ -806,7 +806,8 @@ unsigned llvm::getOrEnforceKnownAlignment(Value *V, unsigned PrefAlign,
                                           const DataLayout *TD) {
   assert(V->getType()->isPointerTy() &&
          "getOrEnforceKnownAlignment expects a pointer!");
-  unsigned BitWidth = TD ? TD->getPointerSizeInBits() : 64;
+  unsigned AS = cast<PointerType>(V->getType())->getAddressSpace();
+  unsigned BitWidth = TD ? TD->getPointerSizeInBits(AS) : 64;
   APInt KnownZero(BitWidth, 0), KnownOne(BitWidth, 0);
   ComputeMaskedBits(V, KnownZero, KnownOne, TD);
   unsigned TrailZ = KnownZero.countTrailingOnes();