Vendor import of llvm trunk r135360:

http://llvm.org/svn/llvm-project/llvm/trunk@135360

15 files changed, 212 insertions, 179 deletions

diff --git a/tools/CMakeLists.txt b/tools/CMakeLists.txt
index c9072a7..8851a0b 100644
--- a/tools/CMakeLists.txt
+++ b/tools/CMakeLists.txt
@@ -59,7 +59,10 @@ if( LLVM_ENABLE_PIC )
 endif()
 
 if( EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/clang/CMakeLists.txt )
-  add_subdirectory( ${CMAKE_CURRENT_SOURCE_DIR}/clang )
+  option(LLVM_BUILD_CLANG "Whether to build Clang as part of LLVM" ON)
+  if (${LLVM_BUILD_CLANG})
+    add_subdirectory( ${CMAKE_CURRENT_SOURCE_DIR}/clang )
+  endif()
 endif( EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/clang/CMakeLists.txt )
 
 set(LLVM_COMMON_DEPENDS ${LLVM_COMMON_DEPENDS} PARENT_SCOPE)
diff --git a/tools/bugpoint/ExtractFunction.cpp b/tools/bugpoint/ExtractFunction.cpp
index 593765c..9941add 100644
--- a/tools/bugpoint/ExtractFunction.cpp
+++ b/tools/bugpoint/ExtractFunction.cpp
@@ -116,8 +116,6 @@ Module *BugDriver::performFinalCleanups(Module *M, bool MayModifySemantics) {
   else
     CleanupPasses.push_back("deadargelim");
 
-  CleanupPasses.push_back("deadtypeelim");
-
   Module *New = runPassesOn(M, CleanupPasses);
   if (New == 0) {
     errs() << "Final cleanups failed.  Sorry. :(  Please report a bug!\n";
@@ -175,13 +173,16 @@ void llvm::DeleteFunctionBody(Function *F) {
 static Constant *GetTorInit(std::vector<std::pair<Function*, int> > &TorList) {
   assert(!TorList.empty() && "Don't create empty tor list!");
   std::vector<Constant*> ArrayElts;
+  Type *Int32Ty = Type::getInt32Ty(TorList[0].first->getContext());
+  
+  const StructType *STy =
+    StructType::get(Int32Ty, TorList[0].first->getType(), NULL);
   for (unsigned i = 0, e = TorList.size(); i != e; ++i) {
-    std::vector<Constant*> Elts;
-    Elts.push_back(ConstantInt::get(
-          Type::getInt32Ty(TorList[i].first->getContext()), TorList[i].second));
-    Elts.push_back(TorList[i].first);
-    ArrayElts.push_back(ConstantStruct::get(TorList[i].first->getContext(),
-                                            Elts, false));
+    Constant *Elts[] = {
+      ConstantInt::get(Int32Ty, TorList[i].second),
+      TorList[i].first
+    };
+    ArrayElts.push_back(ConstantStruct::get(STy, Elts));
   }
   return ConstantArray::get(ArrayType::get(ArrayElts[0]->getType(), 
                                            ArrayElts.size()),
diff --git a/tools/bugpoint/Miscompilation.cpp b/tools/bugpoint/Miscompilation.cpp
index 1834fe1..d645dfb 100644
--- a/tools/bugpoint/Miscompilation.cpp
+++ b/tools/bugpoint/Miscompilation.cpp
@@ -794,8 +794,7 @@ static void CleanupAndPrepareModules(BugDriver &BD, Module *&Test,
 
       // Call the old main function and return its result
       BasicBlock *BB = BasicBlock::Create(Safe->getContext(), "entry", newMain);
-      CallInst *call = CallInst::Create(oldMainProto, args.begin(), args.end(),
-                                        "", BB);
+      CallInst *call = CallInst::Create(oldMainProto, args, "", BB);
 
       // If the type of old function wasn't void, return value of call
       ReturnInst::Create(Safe->getContext(), call, BB);
@@ -873,8 +872,7 @@ static void CleanupAndPrepareModules(BugDriver &BD, Module *&Test,
           //
           // call resolver(GetElementPtr...)
           CallInst *Resolver =
-            CallInst::Create(resolverFunc, ResolverArgs.begin(),
-                             ResolverArgs.end(), "resolver", LookupBB);
+            CallInst::Create(resolverFunc, ResolverArgs, "resolver", LookupBB);
 
           // Cast the result from the resolver to correctly-typed function.
           CastInst *CastedResolver =
@@ -899,10 +897,10 @@ static void CleanupAndPrepareModules(BugDriver &BD, Module *&Test,
 
           // Pass on the arguments to the real function, return its result
           if (F->getReturnType()->isVoidTy()) {
-            CallInst::Create(FuncPtr, Args.begin(), Args.end(), "", DoCallBB);
+            CallInst::Create(FuncPtr, Args, "", DoCallBB);
             ReturnInst::Create(F->getContext(), DoCallBB);
           } else {
-            CallInst *Call = CallInst::Create(FuncPtr, Args.begin(), Args.end(),
+            CallInst *Call = CallInst::Create(FuncPtr, Args,
                                               "retval", DoCallBB);
             ReturnInst::Create(F->getContext(),Call, DoCallBB);
           }
diff --git a/tools/llc/llc.cpp b/tools/llc/llc.cpp
index 162d6c8..b36e941 100644
--- a/tools/llc/llc.cpp
+++ b/tools/llc/llc.cpp
@@ -22,6 +22,7 @@
 #include "llvm/CodeGen/LinkAllAsmWriterComponents.h"
 #include "llvm/CodeGen/LinkAllCodegenComponents.h"
 #include "llvm/Config/config.h"
+#include "llvm/MC/SubtargetFeature.h"
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/FormattedStream.h"
@@ -31,7 +32,6 @@
 #include "llvm/Support/ToolOutputFile.h"
 #include "llvm/Support/Host.h"
 #include "llvm/Support/Signals.h"
-#include "llvm/Target/SubtargetFeature.h"
 #include "llvm/Target/TargetData.h"
 #include "llvm/Target/TargetMachine.h"
 #include "llvm/Target/TargetRegistry.h"
@@ -201,6 +201,9 @@ int main(int argc, char **argv) {
 
   // Initialize targets first, so that --version shows registered targets.
   InitializeAllTargets();
+  InitializeAllMCAsmInfos();
+  InitializeAllMCInstrInfos();
+  InitializeAllMCSubtargetInfos();
   InitializeAllAsmPrinters();
   InitializeAllAsmParsers();
 
@@ -261,16 +264,16 @@ int main(int argc, char **argv) {
 
   // Package up features to be passed to target/subtarget
   std::string FeaturesStr;
-  if (MCPU.size() || MAttrs.size()) {
+  if (MAttrs.size()) {
     SubtargetFeatures Features;
-    Features.setCPU(MCPU);
     for (unsigned i = 0; i != MAttrs.size(); ++i)
       Features.AddFeature(MAttrs[i]);
     FeaturesStr = Features.getString();
   }
 
   std::auto_ptr<TargetMachine>
-    target(TheTarget->createTargetMachine(TheTriple.getTriple(), FeaturesStr));
+    target(TheTarget->createTargetMachine(TheTriple.getTriple(), MCPU,
+                                          FeaturesStr));
   assert(target.get() && "Could not allocate target machine!");
   TargetMachine &Target = *target.get();
 
diff --git a/tools/llvm-bcanalyzer/llvm-bcanalyzer.cpp b/tools/llvm-bcanalyzer/llvm-bcanalyzer.cpp
index 9a92671..4ada64a 100644
--- a/tools/llvm-bcanalyzer/llvm-bcanalyzer.cpp
+++ b/tools/llvm-bcanalyzer/llvm-bcanalyzer.cpp
@@ -102,10 +102,11 @@ static const char *GetBlockName(unsigned BlockID,
   default:                           return 0;
   case bitc::MODULE_BLOCK_ID:        return "MODULE_BLOCK";
   case bitc::PARAMATTR_BLOCK_ID:     return "PARAMATTR_BLOCK";
-  case bitc::TYPE_BLOCK_ID:          return "TYPE_BLOCK";
+  case bitc::TYPE_BLOCK_ID_OLD:      return "TYPE_BLOCK_ID_OLD";
+  case bitc::TYPE_BLOCK_ID_NEW:      return "TYPE_BLOCK_ID";
   case bitc::CONSTANTS_BLOCK_ID:     return "CONSTANTS_BLOCK";
   case bitc::FUNCTION_BLOCK_ID:      return "FUNCTION_BLOCK";
-  case bitc::TYPE_SYMTAB_BLOCK_ID:   return "TYPE_SYMTAB";
+  case bitc::TYPE_SYMTAB_BLOCK_ID_OLD: return "TYPE_SYMTAB_OLD";
   case bitc::VALUE_SYMTAB_BLOCK_ID:  return "VALUE_SYMTAB";
   case bitc::METADATA_BLOCK_ID:      return "METADATA_BLOCK";
   case bitc::METADATA_ATTACHMENT_ID: return "METADATA_ATTACHMENT_BLOCK";
@@ -162,25 +163,29 @@ static const char *GetCodeName(unsigned CodeID, unsigned BlockID,
     default: return 0;
     case bitc::PARAMATTR_CODE_ENTRY: return "ENTRY";
     }
-  case bitc::TYPE_BLOCK_ID:
+  case bitc::TYPE_BLOCK_ID_OLD:
+  case bitc::TYPE_BLOCK_ID_NEW:
     switch (CodeID) {
     default: return 0;
-    case bitc::TYPE_CODE_NUMENTRY:  return "NUMENTRY";
-    case bitc::TYPE_CODE_VOID:      return "VOID";
-    case bitc::TYPE_CODE_FLOAT:     return "FLOAT";
-    case bitc::TYPE_CODE_DOUBLE:    return "DOUBLE";
-    case bitc::TYPE_CODE_LABEL:     return "LABEL";
-    case bitc::TYPE_CODE_OPAQUE:    return "OPAQUE";
-    case bitc::TYPE_CODE_INTEGER:   return "INTEGER";
-    case bitc::TYPE_CODE_POINTER:   return "POINTER";
-    case bitc::TYPE_CODE_FUNCTION:  return "FUNCTION";
-    case bitc::TYPE_CODE_STRUCT:    return "STRUCT";
-    case bitc::TYPE_CODE_ARRAY:     return "ARRAY";
-    case bitc::TYPE_CODE_VECTOR:    return "VECTOR";
-    case bitc::TYPE_CODE_X86_FP80:  return "X86_FP80";
-    case bitc::TYPE_CODE_FP128:     return "FP128";
-    case bitc::TYPE_CODE_PPC_FP128: return "PPC_FP128";
-    case bitc::TYPE_CODE_METADATA:  return "METADATA";
+    case bitc::TYPE_CODE_NUMENTRY:     return "NUMENTRY";
+    case bitc::TYPE_CODE_VOID:         return "VOID";
+    case bitc::TYPE_CODE_FLOAT:        return "FLOAT";
+    case bitc::TYPE_CODE_DOUBLE:       return "DOUBLE";
+    case bitc::TYPE_CODE_LABEL:        return "LABEL";
+    case bitc::TYPE_CODE_OPAQUE:       return "OPAQUE";
+    case bitc::TYPE_CODE_INTEGER:      return "INTEGER";
+    case bitc::TYPE_CODE_POINTER:      return "POINTER";
+    case bitc::TYPE_CODE_FUNCTION:     return "FUNCTION";
+    case bitc::TYPE_CODE_STRUCT_OLD:   return "STRUCT_OLD";
+    case bitc::TYPE_CODE_ARRAY:        return "ARRAY";
+    case bitc::TYPE_CODE_VECTOR:       return "VECTOR";
+    case bitc::TYPE_CODE_X86_FP80:     return "X86_FP80";
+    case bitc::TYPE_CODE_FP128:        return "FP128";
+    case bitc::TYPE_CODE_PPC_FP128:    return "PPC_FP128";
+    case bitc::TYPE_CODE_METADATA:     return "METADATA";
+    case bitc::TYPE_CODE_STRUCT_ANON:  return "STRUCT_ANON";
+    case bitc::TYPE_CODE_STRUCT_NAME:  return "STRUCT_NAME";
+    case bitc::TYPE_CODE_STRUCT_NAMED: return "STRUCT_NAMED";
     }
 
   case bitc::CONSTANTS_BLOCK_ID:
@@ -230,25 +235,19 @@ static const char *GetCodeName(unsigned CodeID, unsigned BlockID,
     case bitc::FUNC_CODE_INST_UNREACHABLE:  return "INST_UNREACHABLE";
 
     case bitc::FUNC_CODE_INST_PHI:          return "INST_PHI";
-    case bitc::FUNC_CODE_INST_MALLOC:       return "INST_MALLOC";
-    case bitc::FUNC_CODE_INST_FREE:         return "INST_FREE";
     case bitc::FUNC_CODE_INST_ALLOCA:       return "INST_ALLOCA";
     case bitc::FUNC_CODE_INST_LOAD:         return "INST_LOAD";
-    case bitc::FUNC_CODE_INST_STORE:        return "INST_STORE";
-    case bitc::FUNC_CODE_INST_CALL:         return "INST_CALL";
     case bitc::FUNC_CODE_INST_VAARG:        return "INST_VAARG";
-    case bitc::FUNC_CODE_INST_STORE2:       return "INST_STORE2";
-    case bitc::FUNC_CODE_INST_GETRESULT:    return "INST_GETRESULT";
+    case bitc::FUNC_CODE_INST_STORE:        return "INST_STORE";
     case bitc::FUNC_CODE_INST_EXTRACTVAL:   return "INST_EXTRACTVAL";
     case bitc::FUNC_CODE_INST_INSERTVAL:    return "INST_INSERTVAL";
     case bitc::FUNC_CODE_INST_CMP2:         return "INST_CMP2";
     case bitc::FUNC_CODE_INST_VSELECT:      return "INST_VSELECT";
-    case bitc::FUNC_CODE_DEBUG_LOC:         return "DEBUG_LOC";
     case bitc::FUNC_CODE_DEBUG_LOC_AGAIN:   return "DEBUG_LOC_AGAIN";
-    case bitc::FUNC_CODE_INST_CALL2:        return "INST_CALL2";
-    case bitc::FUNC_CODE_DEBUG_LOC2:        return "DEBUG_LOC2";
+    case bitc::FUNC_CODE_INST_CALL:         return "INST_CALL";
+    case bitc::FUNC_CODE_DEBUG_LOC:         return "DEBUG_LOC";
     }
-  case bitc::TYPE_SYMTAB_BLOCK_ID:
+  case bitc::TYPE_SYMTAB_BLOCK_ID_OLD:
     switch (CodeID) {
     default: return 0;
     case bitc::TST_CODE_ENTRY: return "ENTRY";
@@ -262,22 +261,17 @@ static const char *GetCodeName(unsigned CodeID, unsigned BlockID,
   case bitc::METADATA_ATTACHMENT_ID:
     switch(CodeID) {
     default:return 0;
-    case bitc::METADATA_ATTACHMENT:  return "METADATA_ATTACHMENT";
-    case bitc::METADATA_ATTACHMENT2: return "METADATA_ATTACHMENT2";
+    case bitc::METADATA_ATTACHMENT: return "METADATA_ATTACHMENT";
     }
   case bitc::METADATA_BLOCK_ID:
     switch(CodeID) {
     default:return 0;
     case bitc::METADATA_STRING:      return "METADATA_STRING";
+    case bitc::METADATA_NAME:        return "METADATA_NAME";
+    case bitc::METADATA_KIND:        return "METADATA_KIND";
     case bitc::METADATA_NODE:        return "METADATA_NODE";
     case bitc::METADATA_FN_NODE:     return "METADATA_FN_NODE";
-    case bitc::METADATA_NAME:        return "METADATA_NAME";
     case bitc::METADATA_NAMED_NODE:  return "METADATA_NAMED_NODE";
-    case bitc::METADATA_KIND:        return "METADATA_KIND";
-    case bitc::METADATA_ATTACHMENT:  return "METADATA_ATTACHMENT";
-    case bitc::METADATA_NODE2:       return "METADATA_NODE2";
-    case bitc::METADATA_FN_NODE2:    return "METADATA_FN_NODE2";
-    case bitc::METADATA_NAMED_NODE2: return "METADATA_NAMED_NODE2";
     }
   }
 }
diff --git a/tools/llvm-dis/llvm-dis.cpp b/tools/llvm-dis/llvm-dis.cpp
index 7453d9e..9020a52 100644
--- a/tools/llvm-dis/llvm-dis.cpp
+++ b/tools/llvm-dis/llvm-dis.cpp
@@ -74,7 +74,7 @@ public:
     if (!V.getType()->isVoidTy()) {
       OS.PadToColumn(50);
       Padded = true;
-      OS << "; [#uses=" << V.getNumUses() << " type=" << V.getType()->getDescription() << "]";  // Output # uses and type
+      OS << "; [#uses=" << V.getNumUses() << " type=" << *V.getType() << "]";  // Output # uses and type
     }
     if (const Instruction *I = dyn_cast<Instruction>(&V)) {
       const DebugLoc &DL = I->getDebugLoc();
diff --git a/tools/llvm-extract/llvm-extract.cpp b/tools/llvm-extract/llvm-extract.cpp
index 8c2f43a..a6c229f 100644
--- a/tools/llvm-extract/llvm-extract.cpp
+++ b/tools/llvm-extract/llvm-extract.cpp
@@ -149,7 +149,6 @@ int main(int argc, char **argv) {
   if (!DeleteFn)
     Passes.add(createGlobalDCEPass());           // Delete unreachable globals
   Passes.add(createStripDeadDebugInfoPass());    // Remove dead debug info
-  Passes.add(createDeadTypeEliminationPass());   // Remove dead types...
   Passes.add(createStripDeadPrototypesPass());   // Remove dead func decls
 
   std::string ErrorInfo;
diff --git a/tools/llvm-mc/Disassembler.cpp b/tools/llvm-mc/Disassembler.cpp
index 93b9723..c389f6a 100644
--- a/tools/llvm-mc/Disassembler.cpp
+++ b/tools/llvm-mc/Disassembler.cpp
@@ -127,12 +127,12 @@ static bool ByteArrayFromString(ByteArrayTy &ByteArray,
   return false;
 }
 
-int Disassembler::disassemble(const Target &T,  TargetMachine &TM,
+int Disassembler::disassemble(const Target &T,
                               const std::string &Triple,
                               MemoryBuffer &Buffer,
                               raw_ostream &Out) {
   // Set up disassembler.
-  OwningPtr<const MCAsmInfo> AsmInfo(T.createAsmInfo(Triple));
+  OwningPtr<const MCAsmInfo> AsmInfo(T.createMCAsmInfo(Triple));
 
   if (!AsmInfo) {
     errs() << "error: no assembly info for target " << Triple << "\n";
@@ -146,7 +146,7 @@ int Disassembler::disassemble(const Target &T,  TargetMachine &TM,
   }
 
   int AsmPrinterVariant = AsmInfo->getAssemblerDialect();
-  OwningPtr<MCInstPrinter> IP(T.createMCInstPrinter(TM, AsmPrinterVariant,
+  OwningPtr<MCInstPrinter> IP(T.createMCInstPrinter(AsmPrinterVariant,
                                                     *AsmInfo));
   if (!IP) {
     errs() << "error: no instruction printer for target " << Triple << '\n';
diff --git a/tools/llvm-mc/Disassembler.h b/tools/llvm-mc/Disassembler.h
index d738ee7..433e71b 100644
--- a/tools/llvm-mc/Disassembler.h
+++ b/tools/llvm-mc/Disassembler.h
@@ -21,13 +21,11 @@ namespace llvm {
 
 class MemoryBuffer;
 class Target;
-class TargetMachine;
 class raw_ostream;
 
 class Disassembler {
 public:
   static int disassemble(const Target &target,
-                         TargetMachine &TM,
                          const std::string &tripleString,
                          MemoryBuffer &buffer,
                          raw_ostream &Out);
diff --git a/tools/llvm-mc/llvm-mc.cpp b/tools/llvm-mc/llvm-mc.cpp
index eb23a1a..334bf32 100644
--- a/tools/llvm-mc/llvm-mc.cpp
+++ b/tools/llvm-mc/llvm-mc.cpp
@@ -17,13 +17,15 @@
 #include "llvm/MC/MCContext.h"
 #include "llvm/MC/MCCodeEmitter.h"
 #include "llvm/MC/MCInstPrinter.h"
+#include "llvm/MC/MCInstrInfo.h"
 #include "llvm/MC/MCSectionMachO.h"
 #include "llvm/MC/MCStreamer.h"
+#include "llvm/MC/MCSubtargetInfo.h"
+#include "llvm/MC/SubtargetFeature.h"
 #include "llvm/Target/TargetAsmBackend.h"
 #include "llvm/Target/TargetAsmParser.h"
 #include "llvm/Target/TargetData.h"
 #include "llvm/Target/TargetRegistry.h"
-#include "llvm/Target/SubtargetFeature.h" // FIXME.
 #include "llvm/Target/TargetAsmInfo.h"  // FIXME.
 #include "llvm/Target/TargetLowering.h"  // FIXME.
 #include "llvm/Target/TargetLoweringObjectFile.h"  // FIXME.
@@ -97,7 +99,7 @@ IncludeDirs("I", cl::desc("Directory of include files"),
 
 static cl::opt<std::string>
 ArchName("arch", cl::desc("Target arch to assemble for, "
-                            "see -version for available targets"));
+                          "see -version for available targets"));
 
 static cl::opt<std::string>
 TripleName("triple", cl::desc("Target triple to assemble for, "
@@ -110,12 +112,11 @@ MCPU("mcpu",
      cl::init(""));
 
 static cl::opt<bool>
-NoInitialTextSection("n", cl::desc(
-                   "Don't assume assembly file starts in the text section"));
+NoInitialTextSection("n", cl::desc("Don't assume assembly file starts "
+                                   "in the text section"));
 
 static cl::opt<bool>
-SaveTempLabels("L", cl::desc(
-                 "Don't discard temporary labels"));
+SaveTempLabels("L", cl::desc("Don't discard temporary labels"));
 
 enum ActionType {
   AC_AsLex,
@@ -195,7 +196,7 @@ static int AsLexInput(const char *ProgName) {
   if (!TheTarget)
     return 1;
 
-  llvm::OwningPtr<MCAsmInfo> MAI(TheTarget->createAsmInfo(TripleName));
+  llvm::OwningPtr<MCAsmInfo> MAI(TheTarget->createMCAsmInfo(TripleName));
   assert(MAI && "Unable to create target asm info!");
 
   AsmLexer Lexer(*MAI);
@@ -305,22 +306,18 @@ static int AssembleInput(const char *ProgName) {
   SrcMgr.setIncludeDirs(IncludeDirs);
 
 
-  llvm::OwningPtr<MCAsmInfo> MAI(TheTarget->createAsmInfo(TripleName));
+  llvm::OwningPtr<MCAsmInfo> MAI(TheTarget->createMCAsmInfo(TripleName));
   assert(MAI && "Unable to create target asm info!");
 
   // Package up features to be passed to target/subtarget
   std::string FeaturesStr;
-  if (MCPU.size()) {
-    SubtargetFeatures Features;
-    Features.setCPU(MCPU);
-    FeaturesStr = Features.getString();
-  }
 
   // FIXME: We shouldn't need to do this (and link in codegen).
   //        When we split this out, we should do it in a way that makes
   //        it straightforward to switch subtargets on the fly (.e.g,
   //        the .cpu and .code16 directives).
   OwningPtr<TargetMachine> TM(TheTarget->createTargetMachine(TripleName,
+                                                             MCPU,
                                                              FeaturesStr));
 
   if (!TM) {
@@ -345,14 +342,18 @@ static int AssembleInput(const char *ProgName) {
     TM->getTargetLowering()->getObjFileLowering();
   const_cast<TargetLoweringObjectFile&>(TLOF).Initialize(Ctx, *TM);
 
+  OwningPtr<MCInstrInfo> MCII(TheTarget->createMCInstrInfo());
+  OwningPtr<MCSubtargetInfo>
+    STI(TheTarget->createMCSubtargetInfo(TripleName, MCPU, FeaturesStr));
+
   // FIXME: There is a bit of code duplication with addPassesToEmitFile.
   if (FileType == OFT_AssemblyFile) {
     MCInstPrinter *IP =
-      TheTarget->createMCInstPrinter(*TM, OutputAsmVariant, *MAI);
+      TheTarget->createMCInstPrinter(OutputAsmVariant, *MAI);
     MCCodeEmitter *CE = 0;
     TargetAsmBackend *TAB = 0;
     if (ShowEncoding) {
-      CE = TheTarget->createCodeEmitter(*TM, Ctx);
+      CE = TheTarget->createCodeEmitter(*MCII, *STI, Ctx);
       TAB = TheTarget->createAsmBackend(TripleName);
     }
     Str.reset(TheTarget->createAsmStreamer(Ctx, FOS, /*asmverbose*/true,
@@ -363,7 +364,7 @@ static int AssembleInput(const char *ProgName) {
     Str.reset(createNullStreamer(Ctx));
   } else {
     assert(FileType == OFT_ObjectFile && "Invalid file type!");
-    MCCodeEmitter *CE = TheTarget->createCodeEmitter(*TM, Ctx);
+    MCCodeEmitter *CE = TheTarget->createCodeEmitter(*MCII, *STI, Ctx);
     TargetAsmBackend *TAB = TheTarget->createAsmBackend(TripleName);
     Str.reset(TheTarget->createObjectStreamer(TripleName, Ctx, *TAB,
                                               FOS, CE, RelaxAll,
@@ -376,7 +377,7 @@ static int AssembleInput(const char *ProgName) {
 
   OwningPtr<MCAsmParser> Parser(createMCAsmParser(*TheTarget, SrcMgr, Ctx,
                                                    *Str.get(), *MAI));
-  OwningPtr<TargetAsmParser> TAP(TheTarget->createAsmParser(*Parser, *TM));
+  OwningPtr<TargetAsmParser> TAP(TheTarget->createAsmParser(*STI, *Parser));
   if (!TAP) {
     errs() << ProgName
            << ": error: this target does not support assembly parsing.\n";
@@ -414,28 +415,7 @@ static int DisassembleInput(const char *ProgName, bool Enhanced) {
     Res =
       Disassembler::disassembleEnhanced(TripleName, *Buffer.take(), Out->os());
   } else {
-    // Package up features to be passed to target/subtarget
-    std::string FeaturesStr;
-    if (MCPU.size()) {
-      SubtargetFeatures Features;
-      Features.setCPU(MCPU);
-      FeaturesStr = Features.getString();
-    }
-
-    // FIXME: We shouldn't need to do this (and link in codegen).
-    //        When we split this out, we should do it in a way that makes
-    //        it straightforward to switch subtargets on the fly (.e.g,
-    //        the .cpu and .code16 directives).
-    OwningPtr<TargetMachine> TM(TheTarget->createTargetMachine(TripleName,
-                                                               FeaturesStr));
-
-    if (!TM) {
-      errs() << ProgName << ": error: could not create target for triple '"
-             << TripleName << "'.\n";
-      return 1;
-    }
-
-    Res = Disassembler::disassemble(*TheTarget, *TM, TripleName,
+    Res = Disassembler::disassemble(*TheTarget, TripleName,
                                     *Buffer.take(), Out->os());
   }
 
@@ -456,6 +436,9 @@ int main(int argc, char **argv) {
   llvm::InitializeAllTargetInfos();
   // FIXME: We shouldn't need to initialize the Target(Machine)s.
   llvm::InitializeAllTargets();
+  llvm::InitializeAllMCAsmInfos();
+  llvm::InitializeAllMCInstrInfos();
+  llvm::InitializeAllMCSubtargetInfos();
   llvm::InitializeAllAsmPrinters();
   llvm::InitializeAllAsmParsers();
   llvm::InitializeAllDisassemblers();
diff --git a/tools/llvm-nm/llvm-nm.cpp b/tools/llvm-nm/llvm-nm.cpp
index 1afa503..014cb29 100644
--- a/tools/llvm-nm/llvm-nm.cpp
+++ b/tools/llvm-nm/llvm-nm.cpp
@@ -143,6 +143,14 @@ namespace {
   StringRef CurrentFilename;
   typedef std::vector<NMSymbol> SymbolListT;
   SymbolListT SymbolList;
+
+  bool error(error_code ec) {
+    if (!ec) return false;
+
+    outs() << ToolName << ": error reading file: " << ec.message() << ".\n";
+    outs().flush();
+    return true;
+  }
 }
 
 static void SortAndPrintSymbolList() {
@@ -261,23 +269,29 @@ static void DumpSymbolNamesFromModule(Module *M) {
 }
 
 static void DumpSymbolNamesFromObject(ObjectFile *obj) {
+  error_code ec;
   for (ObjectFile::symbol_iterator i = obj->begin_symbols(),
-                                   e = obj->end_symbols(); i != e; ++i) {
-    if (!DebugSyms && i->isInternal())
+                                   e = obj->end_symbols();
+                                   i != e; i.increment(ec)) {
+    if (error(ec)) break;
+    bool internal;
+    if (error(i->isInternal(internal))) break;
+    if (!DebugSyms && internal)
       continue;
     NMSymbol s;
     s.Size = object::UnknownAddressOrSize;
     s.Address = object::UnknownAddressOrSize;
-    if (PrintSize || SizeSort)
-      s.Size = i->getSize();
+    if (PrintSize || SizeSort) {
+      if (error(i->getSize(s.Size))) break;
+    }
     if (PrintAddress)
-      s.Address = i->getAddress();
-    s.TypeChar = i->getNMTypeChar();
-    s.Name     = i->getName();
+      if (error(i->getAddress(s.Address))) break;
+    if (error(i->getNMTypeChar(s.TypeChar))) break;
+    if (error(i->getName(s.Name))) break;
     SymbolList.push_back(s);
   }
 
-  CurrentFilename = obj->getFilename();
+  CurrentFilename = obj->getFileName();
   SortAndPrintSymbolList();
 }
 
@@ -317,13 +331,13 @@ static void DumpSymbolNamesFromFile(std::string &Filename) {
     MultipleFiles = true;
     std::for_each (Modules.begin(), Modules.end(), DumpSymbolNamesFromModule);
   } else if (aPath.isObjectFile()) {
-    std::auto_ptr<ObjectFile> obj(ObjectFile::createObjectFile(aPath.str()));
-    if (!obj.get()) {
-      errs() << ToolName << ": " << Filename << ": "
-             << "Failed to open object file\n";
+    OwningPtr<Binary> obj;
+    if (error_code ec = object::createBinary(aPath.str(), obj)) {
+      errs() << ToolName << ": " << Filename << ": " << ec.message() << ".\n";
       return;
     }
-    DumpSymbolNamesFromObject(obj.get());
+    if (object::ObjectFile *o = dyn_cast<ObjectFile>(obj.get()))
+      DumpSymbolNamesFromObject(o);
   } else {
     errs() << ToolName << ": " << Filename << ": "
            << "unrecognizable file type\n";
diff --git a/tools/llvm-objdump/llvm-objdump.cpp b/tools/llvm-objdump/llvm-objdump.cpp
index a17624a..4079e4a 100644
--- a/tools/llvm-objdump/llvm-objdump.cpp
+++ b/tools/llvm-objdump/llvm-objdump.cpp
@@ -14,14 +14,9 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/Object/ObjectFile.h"
-// This config must be included before llvm-config.h.
-#include "llvm/Config/config.h"
-#include "../../lib/MC/MCDisassembler/EDDisassembler.h"
-#include "../../lib/MC/MCDisassembler/EDInst.h"
-#include "../../lib/MC/MCDisassembler/EDOperand.h"
-#include "../../lib/MC/MCDisassembler/EDToken.h"
 #include "llvm/ADT/OwningPtr.h"
 #include "llvm/ADT/Triple.h"
+#include "llvm/ADT/STLExtras.h"
 #include "llvm/MC/MCAsmInfo.h"
 #include "llvm/MC/MCDisassembler.h"
 #include "llvm/MC/MCInst.h"
@@ -38,12 +33,9 @@
 #include "llvm/Support/SourceMgr.h"
 #include "llvm/Support/raw_ostream.h"
 #include "llvm/Support/system_error.h"
-#include "llvm/Target/TargetMachine.h"
 #include "llvm/Target/TargetRegistry.h"
 #include "llvm/Target/TargetSelect.h"
 #include <algorithm>
-#include <cctype>
-#include <cerrno>
 #include <cstring>
 using namespace llvm;
 using namespace object;
@@ -69,6 +61,14 @@ namespace {
                             "see -version for available targets"));
 
   StringRef ToolName;
+
+  bool error(error_code ec) {
+    if (!ec) return false;
+
+    outs() << ToolName << ": error reading file: " << ec.message() << ".\n";
+    outs().flush();
+    return true;
+  }
 }
 
 static const Target *GetTarget(const ObjectFile *Obj = NULL) {
@@ -159,17 +159,46 @@ static void DisassembleInput(const StringRef &Filename) {
 
   outs() << '\n';
   outs() << Filename
-         << ":\tfile format " << Obj->getFileFormatName() << "\n\n\n";
+         << ":\tfile format " << Obj->getFileFormatName() << "\n\n";
 
+  error_code ec;
   for (ObjectFile::section_iterator i = Obj->begin_sections(),
                                     e = Obj->end_sections();
-                                    i != e; ++i) {
-    if (!i->isText())
-      continue;
-    outs() << "Disassembly of section " << i->getName() << ":\n\n";
+                                    i != e; i.increment(ec)) {
+    if (error(ec)) break;
+    bool text;
+    if (error(i->isText(text))) break;
+    if (!text) continue;
+
+    // Make a list of all the symbols in this section.
+    std::vector<std::pair<uint64_t, StringRef> > Symbols;
+    for (ObjectFile::symbol_iterator si = Obj->begin_symbols(),
+                                     se = Obj->end_symbols();
+                                     si != se; si.increment(ec)) {
+      bool contains;
+      if (!error(i->containsSymbol(*si, contains)) && contains) {
+        uint64_t Address;
+        if (error(si->getAddress(Address))) break;
+        StringRef Name;
+        if (error(si->getName(Name))) break;
+        Symbols.push_back(std::make_pair(Address, Name));
+      }
+    }
+
+    // Sort the symbols by address, just in case they didn't come in that way.
+    array_pod_sort(Symbols.begin(), Symbols.end());
+
+    StringRef name;
+    if (error(i->getName(name))) break;
+    outs() << "Disassembly of section " << name << ':';
+
+    // If the section has no symbols just insert a dummy one and disassemble
+    // the whole section.
+    if (Symbols.empty())
+      Symbols.push_back(std::make_pair(0, name));
 
     // Set up disassembler.
-    OwningPtr<const MCAsmInfo> AsmInfo(TheTarget->createAsmInfo(TripleName));
+    OwningPtr<const MCAsmInfo> AsmInfo(TheTarget->createMCAsmInfo(TripleName));
 
     if (!AsmInfo) {
       errs() << "error: no assembly info for target " << TripleName << "\n";
@@ -182,49 +211,49 @@ static void DisassembleInput(const StringRef &Filename) {
       return;
     }
 
-    // FIXME: We shouldn't need to do this (and link in codegen).
-    //        When we split this out, we should do it in a way that makes
-    //        it straightforward to switch subtargets on the fly (.e.g,
-    //        the .cpu and .code16 directives).
-    std::string FeaturesStr;
-    OwningPtr<TargetMachine> TM(TheTarget->createTargetMachine(TripleName,
-                                                               FeaturesStr));
-    if (!TM) {
-      errs() << "error: could not create target for triple " << TripleName << "\n";
-      return;
-    }
-
     int AsmPrinterVariant = AsmInfo->getAssemblerDialect();
     OwningPtr<MCInstPrinter> IP(TheTarget->createMCInstPrinter(
-                                  *TM, AsmPrinterVariant, *AsmInfo));
+                                  AsmPrinterVariant, *AsmInfo));
     if (!IP) {
       errs() << "error: no instruction printer for target " << TripleName << '\n';
       return;
     }
 
-    StringRef Bytes = i->getContents();
+    StringRef Bytes;
+    if (error(i->getContents(Bytes))) break;
     StringRefMemoryObject memoryObject(Bytes);
     uint64_t Size;
     uint64_t Index;
-
-    for (Index = 0; Index < Bytes.size(); Index += Size) {
-      MCInst Inst;
-
-#     ifndef NDEBUG
-      raw_ostream &DebugOut = DebugFlag ? dbgs() : nulls();
-#     else
-      raw_ostream &DebugOut = nulls();
-#     endif
-
-      if (DisAsm->getInstruction(Inst, Size, memoryObject, Index, DebugOut)) {
-        outs() << format("%8x:\t", i->getAddress() + Index);
-        DumpBytes(StringRef(Bytes.data() + Index, Size));
-        IP->printInst(&Inst, outs());
-        outs() << "\n";
-      } else {
-        errs() << ToolName << ": warning: invalid instruction encoding\n";
-        if (Size == 0)
-          Size = 1; // skip illegible bytes
+    uint64_t SectSize;
+    if (error(i->getSize(SectSize))) break;
+
+    // Disassemble symbol by symbol.
+    for (unsigned si = 0, se = Symbols.size(); si != se; ++si) {
+      uint64_t Start = Symbols[si].first;
+      uint64_t End = si == se-1 ? SectSize : Symbols[si + 1].first - 1;
+      outs() << '\n' << Symbols[si].second << ":\n";
+
+      for (Index = Start; Index < End; Index += Size) {
+        MCInst Inst;
+
+#ifndef NDEBUG
+        raw_ostream &DebugOut = DebugFlag ? dbgs() : nulls();
+#else
+        raw_ostream &DebugOut = nulls();
+#endif
+
+        if (DisAsm->getInstruction(Inst, Size, memoryObject, Index, DebugOut)) {
+          uint64_t addr;
+          if (error(i->getAddress(addr))) break;
+          outs() << format("%8x:\t", addr + Index);
+          DumpBytes(StringRef(Bytes.data() + Index, Size));
+          IP->printInst(&Inst, outs());
+          outs() << "\n";
+        } else {
+          errs() << ToolName << ": warning: invalid instruction encoding\n";
+          if (Size == 0)
+            Size = 1; // skip illegible bytes
+        }
       }
     }
   }
@@ -240,6 +269,7 @@ int main(int argc, char **argv) {
   llvm::InitializeAllTargetInfos();
   // FIXME: We shouldn't need to initialize the Target(Machine)s.
   llvm::InitializeAllTargets();
+  llvm::InitializeAllMCAsmInfos();
   llvm::InitializeAllAsmPrinters();
   llvm::InitializeAllAsmParsers();
   llvm::InitializeAllDisassemblers();
diff --git a/tools/llvmc/src/Hooks.cpp b/tools/llvmc/src/Hooks.cpp
index 5aa250e..ddad08a 100644
--- a/tools/llvmc/src/Hooks.cpp
+++ b/tools/llvmc/src/Hooks.cpp
@@ -47,7 +47,6 @@ const unsigned MArchMapSize = NextHighestPowerOf2(MArchNumKeysARM);
 const char* MArchMCpuKeysARM[] = { "iwmmxt", "ep9312" };
 const char* MArchMCpuValuesARM[] = { "iwmmxt", "ep9312"};
 const unsigned MArchMCpuNumKeysARM = NUM_KEYS(MArchMCpuKeysARM);
-const unsigned MArchMCpuMapSize = NextHighestPowerOf2(MArchMCpuNumKeysARM);
 
 
 void FillInArgMap(ArgMap& Args, const char* Keys[],
diff --git a/tools/lto/LTOCodeGenerator.cpp b/tools/lto/LTOCodeGenerator.cpp
index 3abd641..14594cf 100644
--- a/tools/lto/LTOCodeGenerator.cpp
+++ b/tools/lto/LTOCodeGenerator.cpp
@@ -26,8 +26,8 @@
 #include "llvm/Bitcode/ReaderWriter.h"
 #include "llvm/MC/MCAsmInfo.h"
 #include "llvm/MC/MCContext.h"
+#include "llvm/MC/SubtargetFeature.h"
 #include "llvm/Target/Mangler.h"
-#include "llvm/Target/SubtargetFeature.h"
 #include "llvm/Target/TargetOptions.h"
 #include "llvm/Target/TargetData.h"
 #include "llvm/Target/TargetMachine.h"
@@ -73,6 +73,8 @@ LTOCodeGenerator::LTOCodeGenerator()
       _nativeObjectFile(NULL)
 {
     InitializeAllTargets();
+    InitializeAllMCAsmInfos();
+    InitializeAllMCSubtargetInfos();
     InitializeAllAsmPrinters();
 }
 
@@ -262,9 +264,9 @@ bool LTOCodeGenerator::determineTarget(std::string& errMsg)
 
         // construct LTModule, hand over ownership of module and target
         SubtargetFeatures Features;
-        Features.getDefaultSubtargetFeatures(_mCpu, llvm::Triple(Triple));
+        Features.getDefaultSubtargetFeatures(llvm::Triple(Triple));
         std::string FeatureStr = Features.getString();
-        _target = march->createTargetMachine(Triple, FeatureStr);
+        _target = march->createTargetMachine(Triple, _mCpu, FeatureStr);
     }
     return false;
 }
diff --git a/tools/lto/LTOModule.cpp b/tools/lto/LTOModule.cpp
index 8f2b1f4..dc99b94 100644
--- a/tools/lto/LTOModule.cpp
+++ b/tools/lto/LTOModule.cpp
@@ -29,14 +29,15 @@
 #include "llvm/Support/SourceMgr.h"
 #include "llvm/Support/system_error.h"
 #include "llvm/Target/Mangler.h"
-#include "llvm/Target/SubtargetFeature.h"
 #include "llvm/MC/MCAsmInfo.h"
 #include "llvm/MC/MCContext.h"
 #include "llvm/MC/MCExpr.h"
 #include "llvm/MC/MCInst.h"
 #include "llvm/MC/MCParser/MCAsmParser.h"
 #include "llvm/MC/MCStreamer.h"
+#include "llvm/MC/MCSubtargetInfo.h"
 #include "llvm/MC/MCSymbol.h"
+#include "llvm/MC/SubtargetFeature.h"
 #include "llvm/Target/TargetAsmParser.h"
 #include "llvm/Target/TargetMachine.h"
 #include "llvm/Target/TargetRegistry.h"
@@ -134,6 +135,8 @@ LTOModule *LTOModule::makeLTOModule(MemoryBuffer *buffer,
   static bool Initialized = false;
   if (!Initialized) {
     InitializeAllTargets();
+    InitializeAllMCAsmInfos();
+    InitializeAllMCSubtargetInfos();
     InitializeAllAsmParsers();
     Initialized = true;
   }
@@ -157,9 +160,10 @@ LTOModule *LTOModule::makeLTOModule(MemoryBuffer *buffer,
 
   // construct LTOModule, hand over ownership of module and target
   SubtargetFeatures Features;
-  Features.getDefaultSubtargetFeatures("" /* cpu */, llvm::Triple(Triple));
+  Features.getDefaultSubtargetFeatures(llvm::Triple(Triple));
   std::string FeatureStr = Features.getString();
-  TargetMachine *target = march->createTargetMachine(Triple, FeatureStr);
+  std::string CPU;
+  TargetMachine *target = march->createTargetMachine(Triple, CPU, FeatureStr);
   LTOModule *Ret = new LTOModule(m.take(), target);
   bool Err = Ret->ParseSymbols();
   if (Err) {
@@ -191,7 +195,7 @@ bool LTOModule::objcClassNameFromExpression(Constant *c, std::string &name) {
       Constant *cn = gvn->getInitializer();
       if (ConstantArray *ca = dyn_cast<ConstantArray>(cn)) {
         if (ca->isCString()) {
-          name = ".objc_class_name_" + ca->getAsString();
+          name = ".objc_class_name_" + ca->getAsCString();
           return true;
         }
       }
@@ -208,7 +212,7 @@ void LTOModule::addObjCClass(GlobalVariable *clgv) {
     if (objcClassNameFromExpression(c->getOperand(1), superclassName)) {
       NameAndAttributes info;
       StringMap<NameAndAttributes>::value_type &entry =
-        _undefines.GetOrCreateValue(superclassName.c_str());
+        _undefines.GetOrCreateValue(superclassName);
       if (!entry.getValue().name) {
         const char *symbolName = entry.getKey().data();
         info.name = symbolName;
@@ -220,7 +224,7 @@ void LTOModule::addObjCClass(GlobalVariable *clgv) {
     std::string className;
     if (objcClassNameFromExpression(c->getOperand(2), className)) {
       StringSet::value_type &entry =
-        _defines.GetOrCreateValue(className.c_str());
+        _defines.GetOrCreateValue(className);
       entry.setValue(1);
       NameAndAttributes info;
       info.name = entry.getKey().data();
@@ -243,7 +247,7 @@ void LTOModule::addObjCCategory(GlobalVariable *clgv) {
       NameAndAttributes info;
 
       StringMap<NameAndAttributes>::value_type &entry =
-        _undefines.GetOrCreateValue(targetclassName.c_str());
+        _undefines.GetOrCreateValue(targetclassName);
 
       if (entry.getValue().name)
         return;
@@ -264,7 +268,7 @@ void LTOModule::addObjCClassRef(GlobalVariable *clgv) {
     NameAndAttributes info;
 
     StringMap<NameAndAttributes>::value_type &entry =
-      _undefines.GetOrCreateValue(targetclassName.c_str());
+      _undefines.GetOrCreateValue(targetclassName);
     if (entry.getValue().name)
       return;
 
@@ -375,7 +379,7 @@ void LTOModule::addDefinedSymbol(GlobalValue *def, Mangler &mangler,
 
   // add to table of symbols
   NameAndAttributes info;
-  StringSet::value_type &entry = _defines.GetOrCreateValue(Buffer.c_str());
+  StringSet::value_type &entry = _defines.GetOrCreateValue(Buffer);
   entry.setValue(1);
 
   StringRef Name = entry.getKey();
@@ -436,7 +440,7 @@ void LTOModule::addPotentialUndefinedSymbol(GlobalValue *decl,
   mangler.getNameWithPrefix(name, decl, false);
 
   StringMap<NameAndAttributes>::value_type &entry =
-    _undefines.GetOrCreateValue(name.c_str());
+    _undefines.GetOrCreateValue(name);
 
   // we already have the symbol
   if (entry.getValue().name)
@@ -595,7 +599,8 @@ namespace {
     virtual void EmitFileDirective(StringRef Filename) {}
     virtual void EmitDwarfAdvanceLineAddr(int64_t LineDelta,
                                           const MCSymbol *LastLabel,
-                                        const MCSymbol *Label) {}
+                                          const MCSymbol *Label,
+                                          unsigned PointerSize) {}
 
     virtual void EmitInstruction(const MCInst &Inst) {
       // Scan for values.
@@ -617,8 +622,12 @@ bool LTOModule::addAsmGlobalSymbols(MCContext &Context) {
   OwningPtr<MCAsmParser> Parser(createMCAsmParser(_target->getTarget(), SrcMgr,
                                                   Context, *Streamer,
                                                   *_target->getMCAsmInfo()));
+  OwningPtr<MCSubtargetInfo> STI(_target->getTarget().
+                      createMCSubtargetInfo(_target->getTargetTriple(),
+                                            _target->getTargetCPU(),
+                                            _target->getTargetFeatureString()));
   OwningPtr<TargetAsmParser>
-    TAP(_target->getTarget().createAsmParser(*Parser.get(), *_target.get()));
+    TAP(_target->getTarget().createAsmParser(*STI, *Parser.get()));
   Parser->setTargetParser(*TAP);
   int Res = Parser->Run(false);
   if (Res)