Reduce indentation by early exiting.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161356 91177308-0d34-0410-b5e6-96231b3b80d8

tools/lto/LTOCodeGenerator.cpp

@@ -211,7 +211,8 @@ const void* LTOCodeGenerator::compile(size_t* length, std::string& errMsg) {
 }
 
 bool LTOCodeGenerator::determineTarget(std::string& errMsg) {
-  if ( _target == NULL ) {
+  if ( _target != NULL ) return false;
+
   std::string Triple = _linker.getModule()->getTargetTriple();
   if (Triple.empty())
     Triple = sys::getDefaultTargetTriple();
@@ -245,7 +246,6 @@ bool LTOCodeGenerator::determineTarget(std::string& errMsg) {
   _target = march->createTargetMachine(Triple, _mCpu, FeatureStr, Options,
                                        RelocModel, CodeModel::Default,
                                        CodeGenOpt::Aggressive);
-  }
   return false;
 }
 

tools/lto/LTOModule.cpp

@@ -409,6 +409,9 @@ void LTOModule::addDefinedDataSymbol(GlobalValue *v) {
   // Add to list of defined symbols.
   addDefinedSymbol(v, false);
 
+  if (!v->hasSection() /* || !isTargetDarwin */)
+    return;
+
   // Special case i386/ppc ObjC data structures in magic sections:
   // The issue is that the old ObjC object format did some strange
   // contortions to avoid real linker symbols.  For instance, the
@@ -428,7 +431,7 @@ void LTOModule::addDefinedDataSymbol(GlobalValue *v) {
   // a class was missing.
   // The following synthesizes the implicit .objc_* symbols for the linker
   // from the ObjC data structures generated by the front end.
-  if (v->hasSection() /* && isTargetDarwin */) {
+
   // special case if this data blob is an ObjC class definition
   if (v->getSection().compare(0, 15, "__OBJC,__class,") == 0) {
     if (GlobalVariable *gv = dyn_cast<GlobalVariable>(v)) {
@@ -450,7 +453,6 @@ void LTOModule::addDefinedDataSymbol(GlobalValue *v) {
     }
   }
 }
-}
 
 /// addDefinedFunctionSymbol - Add a function symbol as defined to the list.
 void LTOModule::addDefinedFunctionSymbol(Function *f) {