2 files changed, 26 insertions, 17 deletions

diff --git a/lib/LTO/LTOCodeGenerator.cpp b/lib/LTO/LTOCodeGenerator.cpp
index 61c2749..a6f980b 100644
--- a/lib/LTO/LTOCodeGenerator.cpp
+++ b/lib/LTO/LTOCodeGenerator.cpp
@@ -71,7 +71,7 @@ LTOCodeGenerator::LTOCodeGenerator()
 
 LTOCodeGenerator::LTOCodeGenerator(std::unique_ptr<LLVMContext> Context)
     : OwnedContext(std::move(Context)), Context(*OwnedContext),
-      IRLinker(new Module("ld-temp.o", *OwnedContext)) {
+      IRLinker(new Module("ld-temp.o", *OwnedContext)), OptLevel(2) {
   initialize();
 }
 
@@ -291,12 +291,11 @@ const void *LTOCodeGenerator::compileOptimized(size_t *length,
 
 
 bool LTOCodeGenerator::compile_to_file(const char **name,
-                                       bool disableOpt,
                                        bool disableInline,
                                        bool disableGVNLoadPRE,
                                        bool disableVectorization,
                                        std::string &errMsg) {
-  if (!optimize(disableOpt, disableInline, disableGVNLoadPRE,
+  if (!optimize(disableInline, disableGVNLoadPRE,
                 disableVectorization, errMsg))
     return false;
 
@@ -304,12 +303,11 @@ bool LTOCodeGenerator::compile_to_file(const char **name,
 }
 
 const void* LTOCodeGenerator::compile(size_t *length,
-                                      bool disableOpt,
                                       bool disableInline,
                                       bool disableGVNLoadPRE,
                                       bool disableVectorization,
                                       std::string &errMsg) {
-  if (!optimize(disableOpt, disableInline, disableGVNLoadPRE,
+  if (!optimize(disableInline, disableGVNLoadPRE,
                 disableVectorization, errMsg))
     return nullptr;
 
@@ -363,9 +361,25 @@ bool LTOCodeGenerator::determineTarget(std::string &errMsg) {
       MCpu = "cyclone";
   }
 
+  CodeGenOpt::Level CGOptLevel;
+  switch (OptLevel) {
+  case 0:
+    CGOptLevel = CodeGenOpt::None;
+    break;
+  case 1:
+    CGOptLevel = CodeGenOpt::Less;
+    break;
+  case 2:
+    CGOptLevel = CodeGenOpt::Default;
+    break;
+  case 3:
+    CGOptLevel = CodeGenOpt::Aggressive;
+    break;
+  }
+
   TargetMach = march->createTargetMachine(TripleStr, MCpu, FeatureStr, Options,
                                           RelocModel, CodeModel::Default,
-                                          CodeGenOpt::Aggressive);
+                                          CGOptLevel);
   return true;
 }
 
@@ -457,7 +471,6 @@ void LTOCodeGenerator::applyScopeRestrictions() {
   // Start off with a verification pass.
   legacy::PassManager passes;
   passes.add(createVerifierPass());
-  passes.add(createDebugInfoVerifierPass());
 
   // mark which symbols can not be internalized
   Mangler Mangler(TargetMach->getDataLayout());
@@ -512,8 +525,7 @@ void LTOCodeGenerator::applyScopeRestrictions() {
 }
 
 /// Optimize merged modules using various IPO passes
-bool LTOCodeGenerator::optimize(bool DisableOpt,
-                                bool DisableInline,
+bool LTOCodeGenerator::optimize(bool DisableInline,
                                 bool DisableGVNLoadPRE,
                                 bool DisableVectorization,
                                 std::string &errMsg) {
@@ -529,9 +541,8 @@ bool LTOCodeGenerator::optimize(bool DisableOpt,
   legacy::PassManager passes;
 
   // Add an appropriate DataLayout instance for this module...
-  mergedModule->setDataLayout(TargetMach->getDataLayout());
+  mergedModule->setDataLayout(*TargetMach->getDataLayout());
 
-  passes.add(new DataLayoutPass());
   passes.add(
       createTargetTransformInfoWrapperPass(TargetMach->getTargetIRAnalysis()));
 
@@ -543,8 +554,7 @@ bool LTOCodeGenerator::optimize(bool DisableOpt,
   if (!DisableInline)
     PMB.Inliner = createFunctionInliningPass();
   PMB.LibraryInfo = new TargetLibraryInfoImpl(TargetTriple);
-  if (DisableOpt)
-    PMB.OptLevel = 0;
+  PMB.OptLevel = OptLevel;
   PMB.VerifyInput = true;
   PMB.VerifyOutput = true;
 
@@ -567,8 +577,6 @@ bool LTOCodeGenerator::compileOptimized(raw_ostream &out, std::string &errMsg) {
 
   legacy::PassManager codeGenPasses;
 
-  codeGenPasses.add(new DataLayoutPass());
-
   formatted_raw_ostream Out(out);
 
   // If the bitcode files contain ARC code and were compiled with optimization,
diff --git a/lib/LTO/LTOModule.cpp b/lib/LTO/LTOModule.cpp
index 0d07791..49aa97d 100644
--- a/lib/LTO/LTOModule.cpp
+++ b/lib/LTO/LTOModule.cpp
@@ -179,7 +179,8 @@ static Module *parseBitcodeFileImpl(MemoryBufferRef Buffer,
   std::unique_ptr<MemoryBuffer> LightweightBuf =
       MemoryBuffer::getMemBuffer(*MBOrErr, false);
   ErrorOr<Module *> M = getLazyBitcodeModule(std::move(LightweightBuf), Context,
-                                             DiagnosticHandler);
+                                             DiagnosticHandler,
+                                             true/*ShouldLazyLoadMetadata*/);
   if (!M)
     return nullptr;
   return *M;
@@ -229,7 +230,7 @@ LTOModule *LTOModule::makeLTOModule(MemoryBufferRef Buffer,
 
   TargetMachine *target = march->createTargetMachine(TripleStr, CPU, FeatureStr,
                                                      options);
-  M->setDataLayout(target->getDataLayout());
+  M->setDataLayout(*target->getDataLayout());
 
   std::unique_ptr<object::IRObjectFile> IRObj(
       new object::IRObjectFile(Buffer, std::move(M)));