Merge commit 'b3201c5cf1e183d840f7c99ff779d57f1549d8e5' into merge_20130226

Conflicts:
	include/llvm/Support/ELF.h
	lib/Support/DeltaAlgorithm.cpp

Change-Id: I24a4fbce62eb39d924efee3c687b55e1e17b30cd

12 files changed, 160 insertions, 94 deletions

diff --git a/lib/ExecutionEngine/ExecutionEngine.cpp b/lib/ExecutionEngine/ExecutionEngine.cpp
index ef5f589..3d59d25 100644
--- a/lib/ExecutionEngine/ExecutionEngine.cpp
+++ b/lib/ExecutionEngine/ExecutionEngine.cpp
@@ -632,7 +632,7 @@ GenericValue ExecutionEngine::getConstantValue(const Constant *C) {
       else if (Op0->getType()->isDoubleTy())
         GV.IntVal = APIntOps::RoundDoubleToAPInt(GV.DoubleVal, BitWidth);
       else if (Op0->getType()->isX86_FP80Ty()) {
-        APFloat apf = APFloat(GV.IntVal);
+        APFloat apf = APFloat(APFloat::x87DoubleExtended, GV.IntVal);
         uint64_t v;
         bool ignored;
         (void)apf.convertToInteger(&v, BitWidth,
@@ -751,27 +751,32 @@ GenericValue ExecutionEngine::getConstantValue(const Constant *C) {
       case Type::X86_FP80TyID:
       case Type::PPC_FP128TyID:
       case Type::FP128TyID: {
-        APFloat apfLHS = APFloat(LHS.IntVal);
+        const fltSemantics &Sem = CE->getOperand(0)->getType()->getFltSemantics();
+        APFloat apfLHS = APFloat(Sem, LHS.IntVal);
         switch (CE->getOpcode()) {
           default: llvm_unreachable("Invalid long double opcode");
           case Instruction::FAdd:
-            apfLHS.add(APFloat(RHS.IntVal), APFloat::rmNearestTiesToEven);
+            apfLHS.add(APFloat(Sem, RHS.IntVal), APFloat::rmNearestTiesToEven);
             GV.IntVal = apfLHS.bitcastToAPInt();
             break;
           case Instruction::FSub:
-            apfLHS.subtract(APFloat(RHS.IntVal), APFloat::rmNearestTiesToEven);
+            apfLHS.subtract(APFloat(Sem, RHS.IntVal),
+                            APFloat::rmNearestTiesToEven);
             GV.IntVal = apfLHS.bitcastToAPInt();
             break;
           case Instruction::FMul:
-            apfLHS.multiply(APFloat(RHS.IntVal), APFloat::rmNearestTiesToEven);
+            apfLHS.multiply(APFloat(Sem, RHS.IntVal),
+                            APFloat::rmNearestTiesToEven);
             GV.IntVal = apfLHS.bitcastToAPInt();
             break;
           case Instruction::FDiv:
-            apfLHS.divide(APFloat(RHS.IntVal), APFloat::rmNearestTiesToEven);
+            apfLHS.divide(APFloat(Sem, RHS.IntVal),
+                          APFloat::rmNearestTiesToEven);
             GV.IntVal = apfLHS.bitcastToAPInt();
             break;
           case Instruction::FRem:
-            apfLHS.mod(APFloat(RHS.IntVal), APFloat::rmNearestTiesToEven);
+            apfLHS.mod(APFloat(Sem, RHS.IntVal),
+                       APFloat::rmNearestTiesToEven);
             GV.IntVal = apfLHS.bitcastToAPInt();
             break;
           }
@@ -893,7 +898,8 @@ void ExecutionEngine::StoreValueToMemory(const GenericValue &Val,
 /// from Src into IntVal, which is assumed to be wide enough and to hold zero.
 static void LoadIntFromMemory(APInt &IntVal, uint8_t *Src, unsigned LoadBytes) {
   assert((IntVal.getBitWidth()+7)/8 >= LoadBytes && "Integer too small!");
-  uint8_t *Dst = (uint8_t *)IntVal.getRawData();
+  uint8_t *Dst = reinterpret_cast<uint8_t *>(
+                   const_cast<uint64_t *>(IntVal.getRawData()));
 
   if (sys::isLittleEndianHost())
     // Little-endian host - the destination must be ordered from LSB to MSB.
diff --git a/lib/ExecutionEngine/IntelJITEvents/IntelJITEventListener.cpp b/lib/ExecutionEngine/IntelJITEvents/IntelJITEventListener.cpp
index 0f99596..7dc295f 100644
--- a/lib/ExecutionEngine/IntelJITEvents/IntelJITEventListener.cpp
+++ b/lib/ExecutionEngine/IntelJITEvents/IntelJITEventListener.cpp
@@ -22,7 +22,9 @@
 #include "llvm/ADT/DenseMap.h"
 #include "llvm/ADT/OwningPtr.h"
 #include "llvm/CodeGen/MachineFunction.h"
+#include "llvm/DebugInfo/DIContext.h"
 #include "llvm/ExecutionEngine/ObjectImage.h"
+#include "llvm/Object/ObjectFile.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/raw_ostream.h"
 #include "llvm/Support/Errno.h"
@@ -78,6 +80,17 @@ static LineNumberInfo LineStartToIntelJITFormat(
   return Result;
 }
 
+static LineNumberInfo DILineInfoToIntelJITFormat(uintptr_t StartAddress,
+                                                 uintptr_t Address,
+                                                 DILineInfo Line) {
+  LineNumberInfo Result;
+
+  Result.Offset = Address - StartAddress;
+  Result.LineNumber = Line.getLine();
+
+  return Result;
+}
+
 static iJIT_Method_Load FunctionDescToIntelJITFormat(
     IntelJITEventsWrapper& Wrapper,
     const char* FnName,
@@ -177,6 +190,7 @@ void IntelJITEventListener::NotifyFreeingMachineCode(void *FnStart) {
 void IntelJITEventListener::NotifyObjectEmitted(const ObjectImage &Obj) {
   // Get the address of the object image for use as a unique identifier
   const void* ObjData = Obj.getData().data();
+  DIContext* Context = DIContext::getDWARFContext(Obj.getObjectFile());
   MethodAddressVector Functions;
 
   // Use symbol info to iterate functions in the object.
@@ -185,12 +199,15 @@ void IntelJITEventListener::NotifyObjectEmitted(const ObjectImage &Obj) {
                                E = Obj.end_symbols();
                         I != E && !ec;
                         I.increment(ec)) {
+    std::vector<LineNumberInfo> LineInfo;
+    std::string SourceFileName;
+
     object::SymbolRef::Type SymType;
     if (I->getType(SymType)) continue;
     if (SymType == object::SymbolRef::ST_Function) {
-      StringRef Name;
-      uint64_t  Addr;
-      uint64_t  Size;
+      StringRef  Name;
+      uint64_t   Addr;
+      uint64_t   Size;
       if (I->getName(Name)) continue;
       if (I->getAddress(Addr)) continue;
       if (I->getSize(Size)) continue;
@@ -203,11 +220,30 @@ void IntelJITEventListener::NotifyObjectEmitted(const ObjectImage &Obj) {
                                            Name.data(),
                                            Addr,
                                            Size);
-
-      // FIXME: Try to find line info for this function in the DWARF sections.
-      FunctionMessage.source_file_name = 0;
-      FunctionMessage.line_number_size = 0;
-      FunctionMessage.line_number_table = 0;
+      if (Context) {
+        DILineInfoTable  Lines = Context->getLineInfoForAddressRange(Addr, Size);
+        DILineInfoTable::iterator  Begin = Lines.begin();
+        DILineInfoTable::iterator  End = Lines.end();
+        for (DILineInfoTable::iterator It = Begin; It != End; ++It) {
+          LineInfo.push_back(DILineInfoToIntelJITFormat((uintptr_t)Addr,
+                                                        It->first,
+                                                        It->second));
+        }
+        if (LineInfo.size() == 0) {
+          FunctionMessage.source_file_name = 0;
+          FunctionMessage.line_number_size = 0;
+          FunctionMessage.line_number_table = 0;
+        } else {
+          SourceFileName = Lines.front().second.getFileName();
+          FunctionMessage.source_file_name = (char *)SourceFileName.c_str();
+          FunctionMessage.line_number_size = LineInfo.size();
+          FunctionMessage.line_number_table = &*LineInfo.begin();
+        }
+      } else {
+        FunctionMessage.source_file_name = 0;
+        FunctionMessage.line_number_size = 0;
+        FunctionMessage.line_number_table = 0;
+      }
 
       Wrapper->iJIT_NotifyEvent(iJVM_EVENT_TYPE_METHOD_LOAD_FINISHED,
                                 &FunctionMessage);
diff --git a/lib/ExecutionEngine/Interpreter/Execution.cpp b/lib/ExecutionEngine/Interpreter/Execution.cpp
index 431744a..ec4f7f6 100644
--- a/lib/ExecutionEngine/Interpreter/Execution.cpp
+++ b/lib/ExecutionEngine/Interpreter/Execution.cpp
@@ -1169,10 +1169,12 @@ void Interpreter::visitVAArgInst(VAArgInst &I) {
                       .VarArgs[VAList.UIntPairVal.second];
   Type *Ty = I.getType();
   switch (Ty->getTypeID()) {
-    case Type::IntegerTyID: Dest.IntVal = Src.IntVal;
-    IMPLEMENT_VAARG(Pointer);
-    IMPLEMENT_VAARG(Float);
-    IMPLEMENT_VAARG(Double);
+  case Type::IntegerTyID:
+    Dest.IntVal = Src.IntVal;
+    break;
+  IMPLEMENT_VAARG(Pointer);
+  IMPLEMENT_VAARG(Float);
+  IMPLEMENT_VAARG(Double);
   default:
     dbgs() << "Unhandled dest type for vaarg instruction: " << *Ty << "\n";
     llvm_unreachable(0);
diff --git a/lib/ExecutionEngine/JIT/JIT.cpp b/lib/ExecutionEngine/JIT/JIT.cpp
index 103c0c0..53ea0a2 100644
--- a/lib/ExecutionEngine/JIT/JIT.cpp
+++ b/lib/ExecutionEngine/JIT/JIT.cpp
@@ -522,7 +522,8 @@ GenericValue JIT::runFunction(Function *F,
     case Type::PPC_FP128TyID:
     case Type::X86_FP80TyID:
     case Type::FP128TyID:
-        C = ConstantFP::get(F->getContext(), APFloat(AV.IntVal));
+        C = ConstantFP::get(F->getContext(), APFloat(ArgTy->getFltSemantics(),
+                                                     AV.IntVal));
         break;
     case Type::PointerTyID:
       void *ArgPtr = GVTOP(AV);
diff --git a/lib/ExecutionEngine/JIT/JITEmitter.cpp b/lib/ExecutionEngine/JIT/JITEmitter.cpp
index 6fd4df4..c273876 100644
--- a/lib/ExecutionEngine/JIT/JITEmitter.cpp
+++ b/lib/ExecutionEngine/JIT/JITEmitter.cpp
@@ -969,14 +969,24 @@ bool JITEmitter::finishFunction(MachineFunction &F) {
     SavedBufferBegin = BufferBegin;
     SavedBufferEnd = BufferEnd;
     SavedCurBufferPtr = CurBufferPtr;
-
-    BufferBegin = CurBufferPtr = MemMgr->startExceptionTable(F.getFunction(),
-                                                             ActualSize);
-    BufferEnd = BufferBegin+ActualSize;
-    EmittedFunctions[F.getFunction()].ExceptionTable = BufferBegin;
-    uint8_t *EhStart;
-    uint8_t *FrameRegister = DE->EmitDwarfTable(F, *this, FnStart, FnEnd,
-                                                EhStart);
+    uint8_t *FrameRegister;
+
+    while (true) {
+      BufferBegin = CurBufferPtr = MemMgr->startExceptionTable(F.getFunction(),
+                                                               ActualSize);
+      BufferEnd = BufferBegin+ActualSize;
+      EmittedFunctions[F.getFunction()].ExceptionTable = BufferBegin;
+      uint8_t *EhStart;
+      FrameRegister = DE->EmitDwarfTable(F, *this, FnStart, FnEnd, EhStart);
+
+      // If the buffer was large enough to hold the table then we are done.
+      if (CurBufferPtr != BufferEnd)
+        break;
+
+      // Try again with twice as much space.
+      ActualSize = (CurBufferPtr - BufferBegin) * 2;
+      MemMgr->deallocateExceptionTable(BufferBegin);
+    }
     MemMgr->endExceptionTable(F.getFunction(), BufferBegin, CurBufferPtr,
                               FrameRegister);
     BufferBegin = SavedBufferBegin;
diff --git a/lib/ExecutionEngine/JIT/JITMemoryManager.cpp b/lib/ExecutionEngine/JIT/JITMemoryManager.cpp
index 353bebf..66aeb77 100644
--- a/lib/ExecutionEngine/JIT/JITMemoryManager.cpp
+++ b/lib/ExecutionEngine/JIT/JITMemoryManager.cpp
@@ -72,15 +72,20 @@ namespace {
     /// getBlockAfter - Return the memory block immediately after this one.
     ///
     MemoryRangeHeader &getBlockAfter() const {
-      return *(MemoryRangeHeader*)((char*)this+BlockSize);
+      return *reinterpret_cast<MemoryRangeHeader *>(
+                reinterpret_cast<char*>(
+                  const_cast<MemoryRangeHeader *>(this))+BlockSize);
     }
 
     /// getFreeBlockBefore - If the block before this one is free, return it,
     /// otherwise return null.
     FreeRangeHeader *getFreeBlockBefore() const {
       if (PrevAllocated) return 0;
-      intptr_t PrevSize = ((intptr_t *)this)[-1];
-      return (FreeRangeHeader*)((char*)this-PrevSize);
+      intptr_t PrevSize = reinterpret_cast<intptr_t *>(
+                            const_cast<MemoryRangeHeader *>(this))[-1];
+      return reinterpret_cast<FreeRangeHeader *>(
+               reinterpret_cast<char*>(
+                 const_cast<MemoryRangeHeader *>(this))-PrevSize);
     }
 
     /// FreeBlock - Turn an allocated block into a free block, adjusting
diff --git a/lib/ExecutionEngine/OProfileJIT/OProfileWrapper.cpp b/lib/ExecutionEngine/OProfileJIT/OProfileWrapper.cpp
index d67f537..7c0d395 100644
--- a/lib/ExecutionEngine/OProfileJIT/OProfileWrapper.cpp
+++ b/lib/ExecutionEngine/OProfileJIT/OProfileWrapper.cpp
@@ -29,6 +29,7 @@
 #include <dirent.h>
 #include <sys/stat.h>
 #include <fcntl.h>
+#include <unistd.h>
 
 namespace {
 
diff --git a/lib/ExecutionEngine/RuntimeDyld/ObjectImageCommon.h b/lib/ExecutionEngine/RuntimeDyld/ObjectImageCommon.h
index 28b4f0f..89350cc 100644
--- a/lib/ExecutionEngine/RuntimeDyld/ObjectImageCommon.h
+++ b/lib/ExecutionEngine/RuntimeDyld/ObjectImageCommon.h
@@ -58,6 +58,8 @@ public:
 
   virtual StringRef getData() const { return ObjFile->getData(); }
 
+  virtual object::ObjectFile* getObjectFile() const { return ObjFile; }
+
   // Subclasses can override these methods to update the image with loaded
   // addresses for sections and common symbols
   virtual void updateSectionAddress(const object::SectionRef &Sec,
diff --git a/lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.cpp b/lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.cpp
index c5b807b..409b25f 100644
--- a/lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.cpp
+++ b/lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.cpp
@@ -432,14 +432,20 @@ void RuntimeDyldImpl::resolveExternalSymbols() {
     RelocationList &Relocs = i->second;
     SymbolTableMap::const_iterator Loc = GlobalSymbolTable.find(Name);
     if (Loc == GlobalSymbolTable.end()) {
-      // This is an external symbol, try to get it address from
-      // MemoryManager.
-      uint8_t *Addr = (uint8_t*) MemMgr->getPointerToNamedFunction(Name.data(),
+      if (Name.size() == 0) {
+        // This is an absolute symbol, use an address of zero.
+        DEBUG(dbgs() << "Resolving absolute relocations." << "\n");
+        resolveRelocationList(Relocs, 0);
+      } else {
+        // This is an external symbol, try to get its address from
+        // MemoryManager.
+        uint8_t *Addr = (uint8_t*) MemMgr->getPointerToNamedFunction(Name.data(),
                                                                    true);
-      DEBUG(dbgs() << "Resolving relocations Name: " << Name
-              << "\t" << format("%p", Addr)
-              << "\n");
-      resolveRelocationList(Relocs, (uintptr_t)Addr);
+        DEBUG(dbgs() << "Resolving relocations Name: " << Name
+                << "\t" << format("%p", Addr)
+                << "\n");
+        resolveRelocationList(Relocs, (uintptr_t)Addr);
+      }
     } else {
       report_fatal_error("Expected external symbol");
     }
diff --git a/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp b/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp
index 0a68f4e..b8537b1 100644
--- a/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp
+++ b/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp
@@ -28,8 +28,6 @@
 using namespace llvm;
 using namespace llvm::object;
 
-using support::endianness;
-
 namespace {
 
 static inline
@@ -40,22 +38,22 @@ error_code check(error_code Err) {
   return Err;
 }
 
-template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+template<class ELFT>
 class DyldELFObject
-  : public ELFObjectFile<target_endianness, max_alignment, is64Bits> {
-  LLVM_ELF_IMPORT_TYPES(target_endianness, max_alignment, is64Bits)
+  : public ELFObjectFile<ELFT> {
+  LLVM_ELF_IMPORT_TYPES(ELFT)
 
-  typedef Elf_Shdr_Impl<target_endianness, max_alignment, is64Bits> Elf_Shdr;
-  typedef Elf_Sym_Impl<target_endianness, max_alignment, is64Bits> Elf_Sym;
+  typedef Elf_Shdr_Impl<ELFT> Elf_Shdr;
+  typedef Elf_Sym_Impl<ELFT> Elf_Sym;
   typedef
-    Elf_Rel_Impl<target_endianness, max_alignment, is64Bits, false> Elf_Rel;
+    Elf_Rel_Impl<ELFT, false> Elf_Rel;
   typedef
-    Elf_Rel_Impl<target_endianness, max_alignment, is64Bits, true> Elf_Rela;
+    Elf_Rel_Impl<ELFT, true> Elf_Rela;
 
-  typedef Elf_Ehdr_Impl<target_endianness, max_alignment, is64Bits> Elf_Ehdr;
+  typedef Elf_Ehdr_Impl<ELFT> Elf_Ehdr;
 
   typedef typename ELFDataTypeTypedefHelper<
-          target_endianness, max_alignment, is64Bits>::value_type addr_type;
+          ELFT>::value_type addr_type;
 
 public:
   DyldELFObject(MemoryBuffer *Wrapper, error_code &ec);
@@ -65,25 +63,25 @@ public:
 
   // Methods for type inquiry through isa, cast and dyn_cast
   static inline bool classof(const Binary *v) {
-    return (isa<ELFObjectFile<target_endianness, max_alignment, is64Bits> >(v)
+    return (isa<ELFObjectFile<ELFT> >(v)
             && classof(cast<ELFObjectFile
-                <target_endianness, max_alignment, is64Bits> >(v)));
+                <ELFT> >(v)));
   }
   static inline bool classof(
-      const ELFObjectFile<target_endianness, max_alignment, is64Bits> *v) {
+      const ELFObjectFile<ELFT> *v) {
     return v->isDyldType();
   }
 };
 
-template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+template<class ELFT>
 class ELFObjectImage : public ObjectImageCommon {
   protected:
-    DyldELFObject<target_endianness, max_alignment, is64Bits> *DyldObj;
+    DyldELFObject<ELFT> *DyldObj;
     bool Registered;
 
   public:
     ELFObjectImage(ObjectBuffer *Input,
-                 DyldELFObject<target_endianness, max_alignment, is64Bits> *Obj)
+                 DyldELFObject<ELFT> *Obj)
     : ObjectImageCommon(Input, Obj),
       DyldObj(Obj),
       Registered(false) {}
@@ -119,16 +117,15 @@ class ELFObjectImage : public ObjectImageCommon {
 // The MemoryBuffer passed into this constructor is just a wrapper around the
 // actual memory.  Ultimately, the Binary parent class will take ownership of
 // this MemoryBuffer object but not the underlying memory.
-template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
-DyldELFObject<target_endianness, max_alignment, is64Bits>
-             ::DyldELFObject(MemoryBuffer *Wrapper, error_code &ec)
-  : ELFObjectFile<target_endianness, max_alignment, is64Bits>(Wrapper, ec) {
+template<class ELFT>
+DyldELFObject<ELFT>::DyldELFObject(MemoryBuffer *Wrapper, error_code &ec)
+  : ELFObjectFile<ELFT>(Wrapper, ec) {
   this->isDyldELFObject = true;
 }
 
-template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
-void DyldELFObject<target_endianness, max_alignment, is64Bits>
-                  ::updateSectionAddress(const SectionRef &Sec, uint64_t Addr) {
+template<class ELFT>
+void DyldELFObject<ELFT>::updateSectionAddress(const SectionRef &Sec,
+                                               uint64_t Addr) {
   DataRefImpl ShdrRef = Sec.getRawDataRefImpl();
   Elf_Shdr *shdr = const_cast<Elf_Shdr*>(
                           reinterpret_cast<const Elf_Shdr *>(ShdrRef.p));
@@ -138,13 +135,12 @@ void DyldELFObject<target_endianness, max_alignment, is64Bits>
   shdr->sh_addr = static_cast<addr_type>(Addr);
 }
 
-template<endianness target_endianness, std::size_t max_align, bool is64Bits>
-void DyldELFObject<target_endianness, max_align, is64Bits>
-                  ::updateSymbolAddress(const SymbolRef &SymRef, uint64_t Addr){
+template<class ELFT>
+void DyldELFObject<ELFT>::updateSymbolAddress(const SymbolRef &SymRef,
+                                              uint64_t Addr) {
 
   Elf_Sym *sym = const_cast<Elf_Sym*>(
-    ELFObjectFile<target_endianness, max_align, is64Bits>
-                 ::getSymbol(SymRef.getRawDataRefImpl()));
+    ELFObjectFile<ELFT>::getSymbol(SymRef.getRawDataRefImpl()));
 
   // This assumes the address passed in matches the target address bitness
   // The template-based type cast handles everything else.
@@ -164,24 +160,28 @@ ObjectImage *RuntimeDyldELF::createObjectImage(ObjectBuffer *Buffer) {
   error_code ec;
 
   if (Ident.first == ELF::ELFCLASS32 && Ident.second == ELF::ELFDATA2LSB) {
-    DyldELFObject<support::little, 4, false> *Obj =
-      new DyldELFObject<support::little, 4, false>(Buffer->getMemBuffer(), ec);
-    return new ELFObjectImage<support::little, 4, false>(Buffer, Obj);
+    DyldELFObject<ELFType<support::little, 4, false> > *Obj =
+      new DyldELFObject<ELFType<support::little, 4, false> >(
+        Buffer->getMemBuffer(), ec);
+    return new ELFObjectImage<ELFType<support::little, 4, false> >(Buffer, Obj);
   }
   else if (Ident.first == ELF::ELFCLASS32 && Ident.second == ELF::ELFDATA2MSB) {
-    DyldELFObject<support::big, 4, false> *Obj =
-      new DyldELFObject<support::big, 4, false>(Buffer->getMemBuffer(), ec);
-    return new ELFObjectImage<support::big, 4, false>(Buffer, Obj);
+    DyldELFObject<ELFType<support::big, 4, false> > *Obj =
+      new DyldELFObject<ELFType<support::big, 4, false> >(
+        Buffer->getMemBuffer(), ec);
+    return new ELFObjectImage<ELFType<support::big, 4, false> >(Buffer, Obj);
   }
   else if (Ident.first == ELF::ELFCLASS64 && Ident.second == ELF::ELFDATA2MSB) {
-    DyldELFObject<support::big, 8, true> *Obj =
-      new DyldELFObject<support::big, 8, true>(Buffer->getMemBuffer(), ec);
-    return new ELFObjectImage<support::big, 8, true>(Buffer, Obj);
+    DyldELFObject<ELFType<support::big, 8, true> > *Obj =
+      new DyldELFObject<ELFType<support::big, 8, true> >(
+        Buffer->getMemBuffer(), ec);
+    return new ELFObjectImage<ELFType<support::big, 8, true> >(Buffer, Obj);
   }
   else if (Ident.first == ELF::ELFCLASS64 && Ident.second == ELF::ELFDATA2LSB) {
-    DyldELFObject<support::little, 8, true> *Obj =
-      new DyldELFObject<support::little, 8, true>(Buffer->getMemBuffer(), ec);
-    return new ELFObjectImage<support::little, 8, true>(Buffer, Obj);
+    DyldELFObject<ELFType<support::little, 8, true> > *Obj =
+      new DyldELFObject<ELFType<support::little, 8, true> >(
+        Buffer->getMemBuffer(), ec);
+    return new ELFObjectImage<ELFType<support::little, 8, true> >(Buffer, Obj);
   }
   else
     llvm_unreachable("Unexpected ELF format");
@@ -523,7 +523,7 @@ void RuntimeDyldELF::resolvePPC64Relocation(const SectionEntry &Section,
   case ELF::R_PPC64_ADDR32 : {
     int32_t Result = static_cast<int32_t>(Value + Addend);
     if (SignExtend32<32>(Result) != Result)
-      llvm_unreachable("Relocation R_PPC64_REL32 overflow");
+      llvm_unreachable("Relocation R_PPC64_ADDR32 overflow");
     writeInt32BE(LocalAddress, Result);
   } break;
   case ELF::R_PPC64_REL24 : {
@@ -534,6 +534,13 @@ void RuntimeDyldELF::resolvePPC64Relocation(const SectionEntry &Section,
     // Generates a 'bl <address>' instruction
     writeInt32BE(LocalAddress, 0x48000001 | (delta & 0x03FFFFFC));
   } break;
+  case ELF::R_PPC64_REL32 : {
+    uint64_t FinalAddress = (Section.LoadAddress + Offset);
+    int32_t delta = static_cast<int32_t>(Value - FinalAddress + Addend);
+    if (SignExtend32<32>(delta) != delta)
+      llvm_unreachable("Relocation R_PPC64_REL32 overflow");
+    writeInt32BE(LocalAddress, delta);
+  } break;
   case ELF::R_PPC64_ADDR64 :
     writeInt64BE(LocalAddress, Value + Addend);
     break;
diff --git a/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.cpp b/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.cpp
index d2310b5..bcc3df1 100644
--- a/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.cpp
+++ b/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.cpp
@@ -96,6 +96,7 @@ bool RuntimeDyldMachO::resolveI386Relocation(uint8_t *LocalAddress,
       *p++ = (uint8_t)(ValueToWrite & 0xff);
       ValueToWrite >>= 8;
     }
+    return false;
   }
   case macho::RIT_Difference:
   case macho::RIT_Generic_LocalDifference:
diff --git a/lib/ExecutionEngine/TargetSelect.cpp b/lib/ExecutionEngine/TargetSelect.cpp
index 3c4da75..ca4330f 100644
--- a/lib/ExecutionEngine/TargetSelect.cpp
+++ b/lib/ExecutionEngine/TargetSelect.cpp
@@ -32,18 +32,7 @@ TargetMachine *EngineBuilder::selectTarget() {
   // must use the host architecture.
   if (UseMCJIT && WhichEngine != EngineKind::Interpreter && M)
     TT.setTriple(M->getTargetTriple());
-  else {
-    TT.setTriple(LLVM_HOSTTRIPLE);
-#if defined(__APPLE__)
-#if defined(__LP64__)
-    if (TT.isArch32Bit())
-      TT = TT.get64BitArchVariant();
-#else
-    if (TT.isArch64Bit())
-      TT = TT.get32BitArchVariant();
-#endif
-#endif // APPLE
-  }
+
   return selectTarget(TT, MArch, MCPU, MAttrs);
 }
 
@@ -55,7 +44,7 @@ TargetMachine *EngineBuilder::selectTarget(const Triple &TargetTriple,
                               const SmallVectorImpl<std::string>& MAttrs) {
   Triple TheTriple(TargetTriple);
   if (TheTriple.getTriple().empty())
-    TheTriple.setTriple(sys::getDefaultTargetTriple());
+    TheTriple.setTriple(sys::getProcessTriple());
 
   // Adjust the triple to match what the user requested.
   const Target *TheTarget = 0;