[SYCL] Fixed issues found by static code analysis.

Signed-off-by: Vladimir Lazarev <vladimir.lazarev@intel.com>

Author: vladimirlaz

clang/lib/CodeGen/OclCxxRewrite/BifNameReflower.cpp

@@ -336,6 +336,7 @@ struct OclCxxBiAdaptTraits {
       if (!EffectiveTArg->isExpression())
         return nullptr;
       auto Expr = EffectiveTArg->getExpression();
+      assert(Expr && "No expression info.");
       switch (Expr->getKind()) {
       case DXK_TemplateParam:
         EffectiveTArg = Expr->getAs<DXK_TemplateParam>()
@@ -899,7 +900,9 @@ struct OclCxxBiAdaptTraits {
 
     if (Node->getSpecialKind() != DSNK_TypeInfoNameString)
       return std::make_pair(printer::AR_Failure, nullptr);
-    auto RelTypeNameNode = Node->getRelatedType()->getAs<DTK_TypeName>();
+    auto RelType = Node->getRelatedType();
+    assert(RelType && "No related type info.");
+    auto RelTypeNameNode = RelType->getAs<DTK_TypeName>();
     if (RelTypeNameNode == nullptr)
       return std::make_pair(printer::AR_Failure, nullptr);
 

clang/lib/CodeGen/OclCxxRewrite/OclCxxPrinter.h

@@ -1190,7 +1190,7 @@ struct ItaniumEncodeTraits
 
     if (Value.isExpression()) {
       const auto &Expr = Value.getExpression();
-
+      assert(Expr && "No expression info");
       if (Expr->getKind() == DXK_Primary || IsUnwrappedExprAllowed)
         return encode(Out, Value.getExpression());
 

clang/lib/Sema/SemaSYCL.cpp

@@ -371,6 +371,7 @@ CreateSYCLKernelBody(Sema &S, FunctionDecl *KernelCallerFunc, DeclContext *DC) {
                           KernelObjClone, false, DeclarationNameInfo(),
                           QualType(LC->getTypeForDecl(), 0), VK_LValue);
   auto TargetFunc = dyn_cast<FunctionDecl>(DC);
+  assert(TargetFunc && "Not FunctionDecl");
   auto TargetFuncParam =
       TargetFunc->param_begin(); // Iterator to ParamVarDecl (VarDecl)
   if (TargetFuncParam) {
@@ -710,6 +711,7 @@ void Sema::ConstructSYCLKernel(FunctionDecl *KernelCallerFunc) {
   // Get Name for our kernel.
   const TemplateArgumentList *TemplateArgs =
       KernelCallerFunc->getTemplateSpecializationArgs();
+  assert(TemplateArgs && "No template argument info");
   // The first teamplate argument always describes the kernel name - whether
   // it is lambda or functor.
   QualType KernelNameType = TypeName::getFullyQualifiedType(

llvm/lib/SYCL/ASFixer.cpp

@@ -245,8 +245,8 @@ static void collectTypeReplacementData(Type *OldTy, Type *NewTy,
       Value *OldValUser = U.getUser();
 
       if (CallInst *Call = dyn_cast<CallInst>(OldValUser)) {
-        assert(Call->getCalledFunction() && "Indirect function call?");
         auto F = Call->getCalledFunction();
+        assert(F && "Indirect function call?");
         FunctionType *&FuncReplacementType = FTyMap[Call->getCalledFunction()];
         if (!FuncReplacementType)
           FuncReplacementType = F->getFunctionType();
@@ -346,9 +346,11 @@ static void traceAddressSpace(AddrSpaceCastInst *AS,
     if (auto Call = dyn_cast<CallInst>(User)) {
       WorkList.push(std::make_pair(AS, NewAS));
       auto F = Call->getCalledFunction();
+      assert(F && "No function info.");
       for (auto &Arg : F->args()) {
         if (Arg.getType() == OldTy) {
           auto ActArg = Call->getArgOperand(Arg.getArgNo());
+          assert(ActArg && "No argument info.");
           if (!isa<AddrSpaceCastInst>(ActArg)) {
             AddrSpaceCastInst *AddAS =
                 new AddrSpaceCastInst(ActArg, NewTy, "", Call);
@@ -481,8 +483,10 @@ static bool needToReplaceAlloca(AllocaInst *Alloca,
       Value *NextUsr = nullptr;
       if (CallInst *Call = dyn_cast<CallInst>(Usr)) {
         if (VMap[Call]) {
+          auto F = Call->getCalledFunction();
+          assert(F && "No function info.");
           NextUsr =
-              getAllocaOrArgValue(Call->getCalledFunction(), U.getOperandNo());
+              getAllocaOrArgValue(F, U.getOperandNo());
         }
       } else {
         NextUsr = Usr;

sycl/include/CL/sycl/detail/scheduler/commands.cpp

@@ -37,7 +37,8 @@ void ExecuteKernelCommand<
   if (m_Queue->is_host()) {
     detail::waitEvents(DepEvents);
     Event->setIsHostEvent(true);
-    return runOnHost();
+    runOnHost();
+    return;
   }
 
   if (!m_ClKernel) {

sycl/source/detail/program_manager/program_manager.cpp

@@ -142,7 +142,6 @@ cl_program ProgramManager::getClProgramFromClKernel(cl_kernel ClKernel) {
 const vector_class<char> ProgramManager::getSpirvSource() {
   // TODO FIXME make this function thread-safe
   if (!m_SpirvSource) {
-    vector_class<char> *DataPtr = nullptr;
 
     if (DeviceImages && !std::getenv("SYCL_USE_KERNEL_SPV")) {
       assert(DeviceImages->NumDeviceImages == 1 &&
@@ -151,16 +150,17 @@ const vector_class<char> ProgramManager::getSpirvSource() {
       auto *BegPtr = reinterpret_cast<const char *>(Img.ImageStart);
       auto *EndPtr = reinterpret_cast<const char *>(Img.ImageEnd);
       ptrdiff_t ImgSize = EndPtr - BegPtr;
-      DataPtr = new vector_class<char>(static_cast<size_t>(ImgSize));
+      m_SpirvSource.reset(new vector_class<char>(static_cast<size_t>(ImgSize)));
       // TODO this code is expected to be heavily refactored, this copying
       // might be redundant (unless we don't want to work on live .rodata)
-      std::copy(BegPtr, EndPtr, DataPtr->begin());
+      std::copy(BegPtr, EndPtr, m_SpirvSource->begin());
 
       if (std::getenv("SYCL_DUMP_IMAGES")) {
         std::ofstream F("kernel.spv", std::ios::binary);
 
         if (!F.is_open())
           throw compile_program_error("Can not write kernel.spv\n");
+
         F.write(BegPtr, ImgSize);
         F.close();
       }
@@ -170,12 +170,11 @@ const vector_class<char> ProgramManager::getSpirvSource() {
         throw compile_program_error("Can not open kernel.spv\n");
       }
       File.seekg(0, std::ios::end);
-      DataPtr = new vector_class<char>(File.tellg());
+      m_SpirvSource.reset(new vector_class<char>(File.tellg()));
       File.seekg(0);
-      File.read(DataPtr->data(), DataPtr->size());
+      File.read(m_SpirvSource->data(), m_SpirvSource->size());
       File.close();
     }
-    m_SpirvSource.reset(DataPtr);
   }
   // TODO makes unnecessary copy of the data
   return *m_SpirvSource.get();