r268618 - [OPENMP 4.5] Codegen for 'lastprivate' clauses in 'taskloop' directives.

[Alexey Bataev via cfe-commits]

Author: abataev
Date: Thu May  5 03:46:22 2016
New Revision: 268618

URL: http://llvm.org/viewvc/llvm-project?rev=268618&view=rev
Log:
[OPENMP 4.5] Codegen for 'lastprivate' clauses in 'taskloop' directives.

OpenMP 4.5 adds taskloop/taskloop simd directives. These directives
allow to use lastprivate clause. Patch adds codegen for this clause.

Added:
    cfe/trunk/test/OpenMP/taskloop_lastprivate_codegen.cpp
    cfe/trunk/test/OpenMP/taskloop_simd_lastprivate_codegen.cpp
Modified:
    cfe/trunk/lib/CodeGen/CGOpenMPRuntime.cpp
    cfe/trunk/lib/CodeGen/CGOpenMPRuntime.h
    cfe/trunk/lib/CodeGen/CGStmtOpenMP.cpp

Modified: cfe/trunk/lib/CodeGen/CGOpenMPRuntime.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGOpenMPRuntime.cpp?rev=268618&r1=268617&r2=268618&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/CGOpenMPRuntime.cpp (original)
+++ cfe/trunk/lib/CodeGen/CGOpenMPRuntime.cpp Thu May  5 03:46:22 2016
@@ -3292,6 +3292,7 @@ static llvm::Value *
 emitTaskPrivateMappingFunction(CodeGenModule &CGM, SourceLocation Loc,
                                ArrayRef<const Expr *> PrivateVars,
                                ArrayRef<const Expr *> FirstprivateVars,
+                               ArrayRef<const Expr *> LastprivateVars,
                                QualType PrivatesQTy,
                                ArrayRef<PrivateDataTy> Privates) {
   auto &C = CGM.getContext();
@@ -3322,6 +3323,16 @@ emitTaskPrivateMappingFunction(CodeGenMo
     PrivateVarsPos[VD] = Counter;
     ++Counter;
   }
+  for (auto *E: LastprivateVars) {
+    Args.push_back(ImplicitParamDecl::Create(
+        C, /*DC=*/nullptr, Loc,
+        /*Id=*/nullptr, C.getPointerType(C.getPointerType(E->getType()))
+                            .withConst()
+                            .withRestrict()));
+    auto *VD = cast<VarDecl>(cast<DeclRefExpr>(E)->getDecl());
+    PrivateVarsPos[VD] = Counter;
+    ++Counter;
+  }
   auto &TaskPrivatesMapFnInfo =
       CGM.getTypes().arrangeBuiltinFunctionDeclaration(C.VoidTy, Args);
   auto *TaskPrivatesMapTy =
@@ -3361,6 +3372,179 @@ static int array_pod_sort_comparator(con
   return P1->first < P2->first ? 1 : (P2->first < P1->first ? -1 : 0);
 }
 
+/// Emit initialization for private variables in task-based directives.
+/// \return true if cleanups are required, false otherwise.
+static bool emitPrivatesInit(CodeGenFunction &CGF,
+                             const OMPExecutableDirective &D,
+                             Address KmpTaskSharedsPtr, LValue TDBase,
+                             const RecordDecl *KmpTaskTWithPrivatesQTyRD,
+                             QualType SharedsTy, QualType SharedsPtrTy,
+                             const OMPTaskDataTy &Data,
+                             ArrayRef<PrivateDataTy> Privates, bool ForDup) {
+  auto &C = CGF.getContext();
+  bool NeedsCleanup = false;
+  auto FI = std::next(KmpTaskTWithPrivatesQTyRD->field_begin());
+  LValue PrivatesBase = CGF.EmitLValueForField(TDBase, *FI);
+  LValue SrcBase;
+  if (!Data.FirstprivateVars.empty()) {
+    SrcBase = CGF.MakeAddrLValue(
+        CGF.Builder.CreatePointerBitCastOrAddrSpaceCast(
+            KmpTaskSharedsPtr, CGF.ConvertTypeForMem(SharedsPtrTy)),
+        SharedsTy);
+  }
+  CodeGenFunction::CGCapturedStmtInfo CapturesInfo(
+      cast<CapturedStmt>(*D.getAssociatedStmt()));
+  FI = cast<RecordDecl>(FI->getType()->getAsTagDecl())->field_begin();
+  for (auto &&Pair : Privates) {
+    auto *VD = Pair.second.PrivateCopy;
+    auto *Init = VD->getAnyInitializer();
+    LValue PrivateLValue = CGF.EmitLValueForField(PrivatesBase, *FI);
+    if (Init && (!ForDup || (isa<CXXConstructExpr>(Init) &&
+                             !CGF.isTrivialInitializer(Init)))) {
+      if (auto *Elem = Pair.second.PrivateElemInit) {
+        auto *OriginalVD = Pair.second.Original;
+        auto *SharedField = CapturesInfo.lookup(OriginalVD);
+        auto SharedRefLValue = CGF.EmitLValueForField(SrcBase, SharedField);
+        SharedRefLValue = CGF.MakeAddrLValue(
+            Address(SharedRefLValue.getPointer(), C.getDeclAlign(OriginalVD)),
+            SharedRefLValue.getType(), AlignmentSource::Decl);
+        QualType Type = OriginalVD->getType();
+        if (Type->isArrayType()) {
+          // Initialize firstprivate array.
+          if (!isa<CXXConstructExpr>(Init) || CGF.isTrivialInitializer(Init)) {
+            // Perform simple memcpy.
+            CGF.EmitAggregateAssign(PrivateLValue.getAddress(),
+                                    SharedRefLValue.getAddress(), Type);
+          } else {
+            // Initialize firstprivate array using element-by-element
+            // intialization.
+            CGF.EmitOMPAggregateAssign(
+                PrivateLValue.getAddress(), SharedRefLValue.getAddress(), Type,
+                [&CGF, Elem, Init, &CapturesInfo](Address DestElement,
+                                                  Address SrcElement) {
+                  // Clean up any temporaries needed by the initialization.
+                  CodeGenFunction::OMPPrivateScope InitScope(CGF);
+                  InitScope.addPrivate(
+                      Elem, [SrcElement]() -> Address { return SrcElement; });
+                  (void)InitScope.Privatize();
+                  // Emit initialization for single element.
+                  CodeGenFunction::CGCapturedStmtRAII CapInfoRAII(
+                      CGF, &CapturesInfo);
+                  CGF.EmitAnyExprToMem(Init, DestElement,
+                                       Init->getType().getQualifiers(),
+                                       /*IsInitializer=*/false);
+                });
+          }
+        } else {
+          CodeGenFunction::OMPPrivateScope InitScope(CGF);
+          InitScope.addPrivate(Elem, [SharedRefLValue]() -> Address {
+            return SharedRefLValue.getAddress();
+          });
+          (void)InitScope.Privatize();
+          CodeGenFunction::CGCapturedStmtRAII CapInfoRAII(CGF, &CapturesInfo);
+          CGF.EmitExprAsInit(Init, VD, PrivateLValue,
+                             /*capturedByInit=*/false);
+        }
+      } else
+        CGF.EmitExprAsInit(Init, VD, PrivateLValue, /*capturedByInit=*/false);
+    }
+    NeedsCleanup = NeedsCleanup || FI->getType().isDestructedType();
+    ++FI;
+  }
+  return NeedsCleanup;
+}
+
+/// Check if duplication function is required for taskloops.
+static bool checkInitIsRequired(CodeGenFunction &CGF,
+                                ArrayRef<PrivateDataTy> Privates) {
+  bool InitRequired = false;
+  for (auto &&Pair : Privates) {
+    auto *VD = Pair.second.PrivateCopy;
+    auto *Init = VD->getAnyInitializer();
+    InitRequired = InitRequired || (Init && isa<CXXConstructExpr>(Init) &&
+                                    !CGF.isTrivialInitializer(Init));
+  }
+  return InitRequired;
+}
+
+
+/// Emit task_dup function (for initialization of
+/// private/firstprivate/lastprivate vars and last_iter flag)
+/// \code
+/// void __task_dup_entry(kmp_task_t *task_dst, const kmp_task_t *task_src, int
+/// lastpriv) {
+/// // setup lastprivate flag
+///    task_dst->last = lastpriv;
+/// // could be constructor calls here...
+/// }
+/// \endcode
+static llvm::Value *
+emitTaskDupFunction(CodeGenModule &CGM, SourceLocation Loc,
+                    const OMPExecutableDirective &D,
+                    QualType KmpTaskTWithPrivatesPtrQTy,
+                    const RecordDecl *KmpTaskTWithPrivatesQTyRD,
+                    const RecordDecl *KmpTaskTQTyRD, QualType SharedsTy,
+                    QualType SharedsPtrTy, const OMPTaskDataTy &Data,
+                    ArrayRef<PrivateDataTy> Privates, bool WithLastIter) {
+  auto &C = CGM.getContext();
+  FunctionArgList Args;
+  ImplicitParamDecl DstArg(C, /*DC=*/nullptr, Loc,
+                           /*Id=*/nullptr, KmpTaskTWithPrivatesPtrQTy);
+  ImplicitParamDecl SrcArg(C, /*DC=*/nullptr, Loc,
+                           /*Id=*/nullptr, KmpTaskTWithPrivatesPtrQTy);
+  ImplicitParamDecl LastprivArg(C, /*DC=*/nullptr, Loc,
+                                /*Id=*/nullptr, C.IntTy);
+  Args.push_back(&DstArg);
+  Args.push_back(&SrcArg);
+  Args.push_back(&LastprivArg);
+  auto &TaskDupFnInfo =
+      CGM.getTypes().arrangeBuiltinFunctionDeclaration(C.VoidTy, Args);
+  auto *TaskDupTy = CGM.getTypes().GetFunctionType(TaskDupFnInfo);
+  auto *TaskDup =
+      llvm::Function::Create(TaskDupTy, llvm::GlobalValue::InternalLinkage,
+                             ".omp_task_dup.", &CGM.getModule());
+  CGM.SetInternalFunctionAttributes(/*D=*/nullptr, TaskDup, TaskDupFnInfo);
+  CodeGenFunction CGF(CGM);
+  CGF.disableDebugInfo();
+  CGF.StartFunction(GlobalDecl(), C.VoidTy, TaskDup, TaskDupFnInfo, Args);
+
+  LValue TDBase = CGF.EmitLoadOfPointerLValue(
+      CGF.GetAddrOfLocalVar(&DstArg),
+      KmpTaskTWithPrivatesPtrQTy->castAs<PointerType>());
+  // task_dst->liter = lastpriv;
+  if (WithLastIter) {
+    auto LIFI = std::next(KmpTaskTQTyRD->field_begin(), KmpTaskTLastIter);
+    LValue Base = CGF.EmitLValueForField(
+        TDBase, *KmpTaskTWithPrivatesQTyRD->field_begin());
+    LValue LILVal = CGF.EmitLValueForField(Base, *LIFI);
+    llvm::Value *Lastpriv = CGF.EmitLoadOfScalar(
+        CGF.GetAddrOfLocalVar(&LastprivArg), /*Volatile=*/false, C.IntTy, Loc);
+    CGF.EmitStoreOfScalar(Lastpriv, LILVal);
+  }
+
+  // Emit initial values for private copies (if any).
+  assert(!Privates.empty());
+  Address KmpTaskSharedsPtr = Address::invalid();
+  if (!Data.FirstprivateVars.empty()) {
+    LValue TDBase = CGF.EmitLoadOfPointerLValue(
+        CGF.GetAddrOfLocalVar(&SrcArg),
+        KmpTaskTWithPrivatesPtrQTy->castAs<PointerType>());
+    LValue Base = CGF.EmitLValueForField(
+        TDBase, *KmpTaskTWithPrivatesQTyRD->field_begin());
+    KmpTaskSharedsPtr = Address(
+        CGF.EmitLoadOfScalar(CGF.EmitLValueForField(
+                                 Base, *std::next(KmpTaskTQTyRD->field_begin(),
+                                                  KmpTaskTShareds)),
+                             Loc),
+        CGF.getNaturalTypeAlignment(SharedsTy));
+  }
+  (void)emitPrivatesInit(CGF, D, KmpTaskSharedsPtr, TDBase,
+                         KmpTaskTWithPrivatesQTyRD, SharedsTy, SharedsPtrTy,
+                         Data, Privates, /*ForDup=*/true);
+  CGF.FinishFunction();
+  return TaskDup;
+}
+
 CGOpenMPRuntime::TaskResultTy
 CGOpenMPRuntime::emitTaskInit(CodeGenFunction &CGF, SourceLocation Loc,
                               const OMPExecutableDirective &D,
@@ -3390,6 +3574,15 @@ CGOpenMPRuntime::emitTaskInit(CodeGenFun
     ++I;
     ++IElemInitRef;
   }
+  I = Data.LastprivateCopies.begin();
+  for (auto *E : Data.LastprivateVars) {
+    auto *VD = cast<VarDecl>(cast<DeclRefExpr>(E)->getDecl());
+    Privates.push_back(std::make_pair(
+        C.getDeclAlign(VD),
+        PrivateHelpersTy(VD, cast<VarDecl>(cast<DeclRefExpr>(*I)->getDecl()),
+                         /*PrivateElemInit=*/nullptr)));
+    ++I;
+  }
   llvm::array_pod_sort(Privates.begin(), Privates.end(),
                        array_pod_sort_comparator);
   auto KmpInt32Ty = C.getIntTypeForBitwidth(/*DestWidth=*/32, /*Signed=*/1);
@@ -3420,9 +3613,9 @@ CGOpenMPRuntime::emitTaskInit(CodeGenFun
           ->getType();
   if (!Privates.empty()) {
     auto FI = std::next(KmpTaskTWithPrivatesQTyRD->field_begin());
-    TaskPrivatesMap = emitTaskPrivateMappingFunction(CGM, Loc, Data.PrivateVars,
-                                                     Data.FirstprivateVars,
-                                                     FI->getType(), Privates);
+    TaskPrivatesMap = emitTaskPrivateMappingFunction(
+        CGM, Loc, Data.PrivateVars, Data.FirstprivateVars, Data.LastprivateVars,
+        FI->getType(), Privates);
     TaskPrivatesMap = CGF.Builder.CreatePointerBitCastOrAddrSpaceCast(
         TaskPrivatesMap, TaskPrivatesMapTy);
   } else {
@@ -3480,78 +3673,19 @@ CGOpenMPRuntime::emitTaskInit(CodeGenFun
     CGF.EmitAggregateCopy(KmpTaskSharedsPtr, Shareds, SharedsTy);
   }
   // Emit initial values for private copies (if any).
+  TaskResultTy Result;
   bool NeedsCleanup = false;
   if (!Privates.empty()) {
-    auto FI = std::next(KmpTaskTWithPrivatesQTyRD->field_begin());
-    auto PrivatesBase = CGF.EmitLValueForField(Base, *FI);
-    FI = cast<RecordDecl>(FI->getType()->getAsTagDecl())->field_begin();
-    LValue SharedsBase;
-    if (!Data.FirstprivateVars.empty()) {
-      SharedsBase = CGF.MakeAddrLValue(
-          CGF.Builder.CreatePointerBitCastOrAddrSpaceCast(
-              KmpTaskSharedsPtr, CGF.ConvertTypeForMem(SharedsPtrTy)),
-          SharedsTy);
-    }
-    CodeGenFunction::CGCapturedStmtInfo CapturesInfo(
-        cast<CapturedStmt>(*D.getAssociatedStmt()));
-    for (auto &&Pair : Privates) {
-      auto *VD = Pair.second.PrivateCopy;
-      auto *Init = VD->getAnyInitializer();
-      LValue PrivateLValue = CGF.EmitLValueForField(PrivatesBase, *FI);
-      if (Init) {
-        if (auto *Elem = Pair.second.PrivateElemInit) {
-          auto *OriginalVD = Pair.second.Original;
-          auto *SharedField = CapturesInfo.lookup(OriginalVD);
-          auto SharedRefLValue =
-              CGF.EmitLValueForField(SharedsBase, SharedField);
-          SharedRefLValue = CGF.MakeAddrLValue(
-              Address(SharedRefLValue.getPointer(), C.getDeclAlign(OriginalVD)),
-              SharedRefLValue.getType(), AlignmentSource::Decl);
-          QualType Type = OriginalVD->getType();
-          if (Type->isArrayType()) {
-            // Initialize firstprivate array.
-            if (!isa<CXXConstructExpr>(Init) ||
-                CGF.isTrivialInitializer(Init)) {
-              // Perform simple memcpy.
-              CGF.EmitAggregateAssign(PrivateLValue.getAddress(),
-                                      SharedRefLValue.getAddress(), Type);
-            } else {
-              // Initialize firstprivate array using element-by-element
-              // intialization.
-              CGF.EmitOMPAggregateAssign(
-                  PrivateLValue.getAddress(), SharedRefLValue.getAddress(),
-                  Type, [&CGF, Elem, Init, &CapturesInfo](
-                            Address DestElement, Address SrcElement) {
-                    // Clean up any temporaries needed by the initialization.
-                    CodeGenFunction::OMPPrivateScope InitScope(CGF);
-                    InitScope.addPrivate(Elem, [SrcElement]() -> Address {
-                      return SrcElement;
-                    });
-                    (void)InitScope.Privatize();
-                    // Emit initialization for single element.
-                    CodeGenFunction::CGCapturedStmtRAII CapInfoRAII(
-                        CGF, &CapturesInfo);
-                    CGF.EmitAnyExprToMem(Init, DestElement,
-                                         Init->getType().getQualifiers(),
-                                         /*IsInitializer=*/false);
-                  });
-            }
-          } else {
-            CodeGenFunction::OMPPrivateScope InitScope(CGF);
-            InitScope.addPrivate(Elem, [SharedRefLValue]() -> Address {
-              return SharedRefLValue.getAddress();
-            });
-            (void)InitScope.Privatize();
-            CodeGenFunction::CGCapturedStmtRAII CapInfoRAII(CGF, &CapturesInfo);
-            CGF.EmitExprAsInit(Init, VD, PrivateLValue,
-                               /*capturedByInit=*/false);
-          }
-        } else {
-          CGF.EmitExprAsInit(Init, VD, PrivateLValue, /*capturedByInit=*/false);
-        }
-      }
-      NeedsCleanup = NeedsCleanup || FI->getType().isDestructedType();
-      ++FI;
+    NeedsCleanup = emitPrivatesInit(CGF, D, KmpTaskSharedsPtr, Base,
+                                    KmpTaskTWithPrivatesQTyRD, SharedsTy,
+                                    SharedsPtrTy, Data, Privates,
+                                    /*ForDup=*/false);
+    if (isOpenMPTaskLoopDirective(D.getDirectiveKind()) &&
+        (!Data.LastprivateVars.empty() || checkInitIsRequired(CGF, Privates))) {
+      Result.TaskDupFn = emitTaskDupFunction(
+          CGM, Loc, D, KmpTaskTWithPrivatesPtrQTy, KmpTaskTWithPrivatesQTyRD,
+          KmpTaskTQTyRD, SharedsTy, SharedsPtrTy, Data, Privates,
+          /*WithLastIter=*/!Data.LastprivateVars.empty());
     }
   }
   // Provide pointer to function with destructors for privates.
@@ -3566,7 +3700,6 @@ CGOpenMPRuntime::emitTaskInit(CodeGenFun
   CGF.EmitStoreOfScalar(CGF.Builder.CreatePointerBitCastOrAddrSpaceCast(
                             DestructorFn, KmpRoutineEntryPtrTy),
                         Destructor);
-  TaskResultTy Result;
   Result.NewTask = NewTask;
   Result.TaskEntry = TaskEntry;
   Result.NewTaskNewTaskTTy = NewTaskNewTaskTTy;
@@ -3823,7 +3956,10 @@ void CGOpenMPRuntime::emitTaskLoopCall(C
           ? CGF.Builder.CreateIntCast(Data.Schedule.getPointer(), CGF.Int64Ty,
                                       /*isSigned=*/false)
           : llvm::ConstantInt::get(CGF.Int64Ty, /*V=*/0),
-      llvm::ConstantPointerNull::get(CGF.VoidPtrTy)};
+      Result.TaskDupFn
+          ? CGF.Builder.CreatePointerBitCastOrAddrSpaceCast(Result.TaskDupFn,
+                                                            CGF.VoidPtrTy)
+          : llvm::ConstantPointerNull::get(CGF.VoidPtrTy)};
   CGF.EmitRuntimeCall(createRuntimeFunction(OMPRTL__kmpc_taskloop), TaskArgs);
 }
 

Modified: cfe/trunk/lib/CodeGen/CGOpenMPRuntime.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGOpenMPRuntime.h?rev=268618&r1=268617&r2=268618&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/CGOpenMPRuntime.h (original)
+++ cfe/trunk/lib/CodeGen/CGOpenMPRuntime.h Thu May  5 03:46:22 2016
@@ -93,6 +93,8 @@ struct OMPTaskDataTy final {
   SmallVector<const Expr *, 4> FirstprivateVars;
   SmallVector<const Expr *, 4> FirstprivateCopies;
   SmallVector<const Expr *, 4> FirstprivateInits;
+  SmallVector<const Expr *, 4> LastprivateVars;
+  SmallVector<const Expr *, 4> LastprivateCopies;
   SmallVector<std::pair<OpenMPDependClauseKind, const Expr *>, 4> Dependences;
   llvm::PointerIntPair<llvm::Value *, 1, bool> Final;
   llvm::PointerIntPair<llvm::Value *, 1, bool> Schedule;
@@ -453,6 +455,7 @@ private:
     llvm::Value *NewTaskNewTaskTTy = nullptr;
     LValue TDBase;
     RecordDecl *KmpTaskTQTyRD = nullptr;
+    llvm::Value *TaskDupFn = nullptr;
   };
   /// Emit task region for the task directive. The task region is emitted in
   /// several steps:

Modified: cfe/trunk/lib/CodeGen/CGStmtOpenMP.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGStmtOpenMP.cpp?rev=268618&r1=268617&r2=268618&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/CGStmtOpenMP.cpp (original)
+++ cfe/trunk/lib/CodeGen/CGStmtOpenMP.cpp Thu May  5 03:46:22 2016
@@ -740,12 +740,16 @@ bool CodeGenFunction::EmitOMPLastprivate
   llvm::DenseSet<const VarDecl *> AlreadyEmittedVars;
   for (const auto *C : D.getClausesOfKind<OMPLastprivateClause>()) {
     HasAtLeastOneLastprivate = true;
+    if (isOpenMPTaskLoopDirective(D.getDirectiveKind()))
+      break;
     auto IRef = C->varlist_begin();
     auto IDestRef = C->destination_exprs().begin();
     for (auto *IInit : C->private_copies()) {
       // Keep the address of the original variable for future update at the end
       // of the loop.
       auto *OrigVD = cast<VarDecl>(cast<DeclRefExpr>(*IRef)->getDecl());
+      // Taskloops do not require additional initialization, it is done in
+      // runtime support library.
       if (AlreadyEmittedVars.insert(OrigVD->getCanonicalDecl()).second) {
         auto *DestVD = cast<VarDecl>(cast<DeclRefExpr>(*IDestRef)->getDecl());
         PrivateScope.addPrivate(DestVD, [this, OrigVD, IRef]() -> Address {
@@ -761,12 +765,11 @@ bool CodeGenFunction::EmitOMPLastprivate
         // for 'firstprivate' clause.
         if (IInit && !SIMDLCVs.count(OrigVD->getCanonicalDecl())) {
           auto *VD = cast<VarDecl>(cast<DeclRefExpr>(IInit)->getDecl());
-          bool IsRegistered =
-              PrivateScope.addPrivate(OrigVD, [&]() -> Address {
-                // Emit private VarDecl with copy init.
-                EmitDecl(*VD);
-                return GetAddrOfLocalVar(VD);
-              });
+          bool IsRegistered = PrivateScope.addPrivate(OrigVD, [&]() -> Address {
+            // Emit private VarDecl with copy init.
+            EmitDecl(*VD);
+            return GetAddrOfLocalVar(VD);
+          });
           assert(IsRegistered &&
                  "lastprivate var already registered as private");
           (void)IsRegistered;
@@ -2363,15 +2366,34 @@ void CodeGenFunction::EmitOMPTaskBasedDi
       ++IElemInitRef;
     }
   }
+  // Get list of lastprivate variables (for taskloops).
+  llvm::DenseMap<const VarDecl *, const DeclRefExpr *> LastprivateDstsOrigs;
+  for (const auto *C : S.getClausesOfKind<OMPLastprivateClause>()) {
+    auto IRef = C->varlist_begin();
+    auto ID = C->destination_exprs().begin();
+    for (auto *IInit : C->private_copies()) {
+      auto *OrigVD = cast<VarDecl>(cast<DeclRefExpr>(*IRef)->getDecl());
+      if (EmittedAsPrivate.insert(OrigVD->getCanonicalDecl()).second) {
+        Data.LastprivateVars.push_back(*IRef);
+        Data.LastprivateCopies.push_back(IInit);
+      }
+      LastprivateDstsOrigs.insert(
+          {cast<VarDecl>(cast<DeclRefExpr>(*ID)->getDecl()),
+           cast<DeclRefExpr>(*IRef)});
+      ++IRef;
+      ++ID;
+    }
+  }
   // Build list of dependences.
   for (const auto *C : S.getClausesOfKind<OMPDependClause>())
     for (auto *IRef : C->varlists())
       Data.Dependences.push_back(std::make_pair(C->getDependencyKind(), IRef));
-  auto &&CodeGen = [PartId, &S, &Data, CS, &BodyGen](CodeGenFunction &CGF,
-                                                     PrePostActionTy &Action) {
+  auto &&CodeGen = [PartId, &S, &Data, CS, &BodyGen, &LastprivateDstsOrigs](
+      CodeGenFunction &CGF, PrePostActionTy &Action) {
     // Set proper addresses for generated private copies.
     OMPPrivateScope Scope(CGF);
-    if (!Data.PrivateVars.empty() || !Data.FirstprivateVars.empty()) {
+    if (!Data.PrivateVars.empty() || !Data.FirstprivateVars.empty() ||
+        !Data.LastprivateVars.empty()) {
       auto *CopyFn = CGF.Builder.CreateLoad(
           CGF.GetAddrOfLocalVar(CS->getCapturedDecl()->getParam(3)));
       auto *PrivatesPtr = CGF.Builder.CreateLoad(
@@ -2395,7 +2417,26 @@ void CodeGenFunction::EmitOMPTaskBasedDi
         PrivatePtrs.push_back(std::make_pair(VD, PrivatePtr));
         CallArgs.push_back(PrivatePtr.getPointer());
       }
+      for (auto *E : Data.LastprivateVars) {
+        auto *VD = cast<VarDecl>(cast<DeclRefExpr>(E)->getDecl());
+        Address PrivatePtr =
+            CGF.CreateMemTemp(CGF.getContext().getPointerType(E->getType()),
+                              ".lastpriv.ptr.addr");
+        PrivatePtrs.push_back(std::make_pair(VD, PrivatePtr));
+        CallArgs.push_back(PrivatePtr.getPointer());
+      }
       CGF.EmitRuntimeCall(CopyFn, CallArgs);
+      for (auto &&Pair : LastprivateDstsOrigs) {
+        auto *OrigVD = cast<VarDecl>(Pair.second->getDecl());
+        DeclRefExpr DRE(
+            const_cast<VarDecl *>(OrigVD),
+            /*RefersToEnclosingVariableOrCapture=*/CGF.CapturedStmtInfo->lookup(
+                OrigVD) != nullptr,
+            Pair.second->getType(), VK_LValue, Pair.second->getExprLoc());
+        Scope.addPrivate(Pair.first, [&CGF, &DRE]() {
+          return CGF.EmitLValue(&DRE).getAddress();
+        });
+      }
       for (auto &&Pair : PrivatePtrs) {
         Address Replacement(CGF.Builder.CreateLoad(Pair.second),
                             CGF.getContext().getDeclAlign(Pair.first));
@@ -3402,6 +3443,7 @@ void CodeGenFunction::EmitOMPTaskLoopBas
     mapParam(CGF, cast<DeclRefExpr>(S.getIsLastIterVariable()), *LIP,
              LoopScope);
     CGF.EmitOMPPrivateLoopCounters(S, LoopScope);
+    bool HasLastprivateClause = CGF.EmitOMPLastprivateClauseInit(S, LoopScope);
     (void)LoopScope.Privatize();
     // Emit the loop iteration variable.
     const Expr *IVExpr = S.getIterationVariable();
@@ -3430,6 +3472,14 @@ void CodeGenFunction::EmitOMPTaskLoopBas
       CGF.EmitBranch(ContBlock);
       CGF.EmitBlock(ContBlock, true);
     }
+    // Emit final copy of the lastprivate variables if IsLastIter != 0.
+    if (HasLastprivateClause) {
+      CGF.EmitOMPLastprivateClauseFinal(
+          S, isOpenMPSimdDirective(S.getDirectiveKind()),
+          CGF.Builder.CreateIsNotNull(CGF.EmitLoadOfScalar(
+              CGF.GetAddrOfLocalVar(*LIP), /*Volatile=*/false,
+              (*LIP)->getType(), S.getLocStart())));
+    }
   };
   auto &&TaskGen = [&S, SharedsTy, CapturedStruct,
                     IfCond](CodeGenFunction &CGF, llvm::Value *OutlinedFn,

Added: cfe/trunk/test/OpenMP/taskloop_lastprivate_codegen.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/OpenMP/taskloop_lastprivate_codegen.cpp?rev=268618&view=auto
==============================================================================
--- cfe/trunk/test/OpenMP/taskloop_lastprivate_codegen.cpp (added)
+++ cfe/trunk/test/OpenMP/taskloop_lastprivate_codegen.cpp Thu May  5 03:46:22 2016
@@ -0,0 +1,527 @@
+// RUN: %clang_cc1 -verify -fopenmp -x c++ -triple x86_64-apple-darwin10 -emit-llvm %s -o - | FileCheck %s
+// RUN: %clang_cc1 -fopenmp -x c++ -std=c++11 -triple x86_64-apple-darwin10 -emit-pch -o %t %s
+// RUN: %clang_cc1 -fopenmp -x c++ -triple x86_64-apple-darwin10 -std=c++11 -include-pch %t -verify %s -emit-llvm -o - | FileCheck %s
+// RUN: %clang_cc1 -verify -fopenmp -x c++ -std=c++11 -DLAMBDA -triple x86_64-apple-darwin10 -emit-llvm %s -o - | FileCheck -check-prefix=LAMBDA %s
+// RUN: %clang_cc1 -verify -fopenmp -x c++ -fblocks -DBLOCKS -triple x86_64-apple-darwin10 -emit-llvm %s -o - | FileCheck -check-prefix=BLOCKS %s
+// RUN: %clang_cc1 -verify -fopenmp -x c++ -std=c++11 -DARRAY -triple x86_64-apple-darwin10 -emit-llvm %s -o - | FileCheck -check-prefix=ARRAY %s
+// expected-no-diagnostics
+// REQUIRES: x86-registered-target
+// It doesn't pass on win32.
+// REQUIRES: shell
+#ifndef ARRAY
+#ifndef HEADER
+#define HEADER
+
+template <class T>
+struct S {
+  T f;
+  S(T a) : f(a) {}
+  S() : f() {}
+  S(const S &s, T t = T()) : f(s.f + t) {}
+  operator T() { return T(); }
+  ~S() {}
+};
+
+volatile double g;
+
+// CHECK-DAG: [[KMP_TASK_T_TY:%.+]] = type { i8*, i32 (i32, i8*)*, i32, i32 (i32, i8*)*, i64, i64, i64, i32 }
+// CHECK-DAG: [[S_DOUBLE_TY:%.+]] = type { double }
+// CHECK-DAG: [[PRIVATES_MAIN_TY:%.+]] = type {{.?}}{ [2 x [[S_DOUBLE_TY]]], [[S_DOUBLE_TY]], i32, [2 x i32]
+// CHECK-DAG: [[CAP_MAIN_TY:%.+]] = type { [2 x i32]*, i32*, [2 x [[S_DOUBLE_TY]]]*, [[S_DOUBLE_TY]]*, i{{[0-9]+}}* }
+// CHECK-DAG: [[KMP_TASK_MAIN_TY:%.+]] = type { [[KMP_TASK_T_TY]], [[PRIVATES_MAIN_TY]] }
+// CHECK-DAG: [[S_INT_TY:%.+]] = type { i32 }
+// CHECK-DAG: [[CAP_TMAIN_TY:%.+]] = type { [2 x i32]*, i32*, [2 x [[S_INT_TY]]]*, [[S_INT_TY]]* }
+// CHECK-DAG: [[PRIVATES_TMAIN_TY:%.+]] = type { i32, [2 x i32], [2 x [[S_INT_TY]]], [[S_INT_TY]], [104 x i8] }
+// CHECK-DAG: [[KMP_TASK_TMAIN_TY:%.+]] = type { [[KMP_TASK_T_TY]], [{{[0-9]+}} x i8], [[PRIVATES_TMAIN_TY]] }
+template <typename T>
+T tmain() {
+  S<T> ttt;
+  S<T> test;
+  T t_var __attribute__((aligned(128))) = T();
+  T vec[] = {1, 2};
+  S<T> s_arr[] = {1, 2};
+  S<T> var(3);
+#pragma omp taskloop lastprivate(t_var, vec, s_arr, s_arr, var, var)
+  for (int i = 0; i < 10; ++i) {
+    vec[0] = t_var;
+    s_arr[0] = var;
+  }
+  return T();
+}
+
+int main() {
+  static int sivar;
+#ifdef LAMBDA
+  // LAMBDA: [[G:@.+]] = global double
+  // LAMBDA: [[SIVAR:@.+]] = internal global i{{[0-9]+}} 0,
+  // LAMBDA-LABEL: @main
+  // LAMBDA: call{{( x86_thiscallcc)?}} void [[OUTER_LAMBDA:@.+]](
+  [&]() {
+  // LAMBDA: define{{.*}} internal{{.*}} void [[OUTER_LAMBDA]](
+  // LAMBDA: [[RES:%.+]] = call i8* @__kmpc_omp_task_alloc(%{{[^ ]+}} @{{[^,]+}}, i32 %{{[^,]+}}, i32 1, i64 80, i64 16, i32 (i32, i8*)* bitcast (i32 (i32, %{{[^*]+}}*)* [[TASK_ENTRY:@[^ ]+]] to i32 (i32, i8*)*))
+// LAMBDA: [[PRIVATES:%.+]] = getelementptr inbounds %{{.+}}, %{{.+}}* %{{.+}}, i{{.+}} 0, i{{.+}} 1
+// LAMBDA: [[G_PRIVATE_ADDR:%.+]] = getelementptr inbounds %{{.+}}, %{{.+}}* [[PRIVATES]], i{{.+}} 0, i{{.+}} 0
+
+// LAMBDA: call void @__kmpc_taskloop(%{{.+}}* @{{.+}}, i32 %{{.+}}, i8* [[RES]], i32 1, i64* %{{.+}}, i64* %{{.+}}, i64 %{{.+}}, i32 0, i32 0, i64 0, i8* bitcast (void ([[KMP_TASK_MAIN_TY:%[^*]+]]*, [[KMP_TASK_MAIN_TY]]*, i32)* [[MAIN_DUP:@.+]] to i8*))
+// LAMBDA: ret
+#pragma omp taskloop lastprivate(g, sivar)
+  for (int i = 0; i < 10; ++i) {
+    // LAMBDA: define {{.+}} void [[INNER_LAMBDA:@.+]](%{{.+}}* [[ARG_PTR:%.+]])
+    // LAMBDA: store %{{.+}}* [[ARG_PTR]], %{{.+}}** [[ARG_PTR_REF:%.+]],
+    // LAMBDA: [[ARG_PTR:%.+]] = load %{{.+}}*, %{{.+}}** [[ARG_PTR_REF]]
+    // LAMBDA: [[G_PTR_REF:%.+]] = getelementptr inbounds %{{.+}}, %{{.+}}* [[ARG_PTR]], i{{[0-9]+}} 0, i{{[0-9]+}} 0
+    // LAMBDA: [[G_REF:%.+]] = load double*, double** [[G_PTR_REF]]
+    // LAMBDA: store double 2.0{{.+}}, double* [[G_REF]]
+
+    // LAMBDA: store double* %{{.+}}, double** %{{.+}},
+    // LAMBDA: define internal i32 [[TASK_ENTRY]](i32, %{{.+}}* noalias)
+    g = 1;
+    sivar = 11;
+    // LAMBDA: store double 1.0{{.+}}, double* %{{.+}},
+    // LAMBDA: store i{{[0-9]+}} 11, i{{[0-9]+}}* %{{.+}},
+    // LAMBDA: call void [[INNER_LAMBDA]](%
+    // LAMBDA: icmp ne i32 %{{.+}}, 0
+    // LAMBDA: br i1
+    // LAMBDA: load double, double* %
+    // LAMBDA: store volatile double %
+    // LAMBDA: load i32, i32* %
+    // LAMBDA: store i32 %
+    // LAMBDA: ret
+    [&]() {
+      g = 2;
+      sivar = 22;
+    }();
+  }
+  }();
+  return 0;
+#elif defined(BLOCKS)
+  // BLOCKS: [[G:@.+]] = global double
+  // BLOCKS-LABEL: @main
+  // BLOCKS: call void {{%.+}}(i8
+  ^{
+  // BLOCKS: define{{.*}} internal{{.*}} void {{.+}}(i8*
+  // BLOCKS: [[RES:%.+]] = call i8* @__kmpc_omp_task_alloc(%{{[^ ]+}} @{{[^,]+}}, i32 %{{[^,]+}}, i32 1, i64 80, i64 16, i32 (i32, i8*)* bitcast (i32 (i32, %{{[^*]+}}*)* [[TASK_ENTRY:@[^ ]+]] to i32 (i32, i8*)*))
+  // BLOCKS: [[PRIVATES:%.+]] = getelementptr inbounds %{{.+}}, %{{.+}}* %{{.+}}, i{{.+}} 0, i{{.+}} 1
+  // BLOCKS: [[G_PRIVATE_ADDR:%.+]] = getelementptr inbounds %{{.+}}, %{{.+}}* [[PRIVATES]], i{{.+}} 0, i{{.+}} 0
+
+  // BLOCKS: [[SIVAR_PRIVATE_ADDR:%.+]] = getelementptr inbounds %{{.+}}, %{{.+}}* [[PRIVATES]], i{{.+}} 0, i{{.+}} 1
+  // BLOCKS: call void @__kmpc_taskloop(%{{.+}}* @{{.+}}, i32 %{{.+}}, i8* [[RES]], i32 1, i64* %{{.+}}, i64* %{{.+}}, i64 %{{.+}}, i32 0, i32 0, i64 0, i8* bitcast (void ([[KMP_TASK_MAIN_TY:%[^*]+]]*, [[KMP_TASK_MAIN_TY]]*, i32)* [[MAIN_DUP:@.+]] to i8*))
+  // BLOCKS: ret
+#pragma omp taskloop lastprivate(g, sivar)
+  for (int i = 0; i < 10; ++i) {
+    // BLOCKS: define {{.+}} void {{@.+}}(i8*
+    // BLOCKS-NOT: [[G]]{{[[^:word:]]}}
+    // BLOCKS: store double 2.0{{.+}}, double*
+    // BLOCKS-NOT: [[G]]{{[[^:word:]]}}
+    // BLOCKS-NOT: [[ISVAR]]{{[[^:word:]]}}
+    // BLOCKS: store i{{[0-9]+}} 22, i{{[0-9]+}}*
+    // BLOCKS-NOT: [[SIVAR]]{{[[^:word:]]}}
+    // BLOCKS: ret
+
+    // BLOCKS: store double* %{{.+}}, double** %{{.+}},
+    // BLOCKS: store i{{[0-9]+}}* %{{.+}}, i{{[0-9]+}}** %{{.+}},
+    // BLOCKS: define internal i32 [[TASK_ENTRY]](i32, %{{.+}}* noalias)
+    g = 1;
+    sivar = 11;
+    // BLOCKS: store double 1.0{{.+}}, double* %{{.+}},
+    // BLOCKS-NOT: [[G]]{{[[^:word:]]}}
+    // BLOCKS: store i{{[0-9]+}} 11, i{{[0-9]+}}* %{{.+}},
+    // BLOCKS-NOT: [[SIVAR]]{{[[^:word:]]}}
+    // BLOCKS: call void {{%.+}}(i8
+    // BLOCKS: icmp ne i32 %{{.+}}, 0
+    // BLOCKS: br i1
+    // BLOCKS: load double, double* %
+    // BLOCKS: store volatile double %
+    // BLOCKS: load i32, i32* %
+    // BLOCKS: store i32 %
+    ^{
+      g = 2;
+      sivar = 22;
+    }();
+  }
+  }();
+  return 0;
+#else
+  S<double> ttt;
+  S<double> test;
+  int t_var = 0;
+  int vec[] = {1, 2};
+  S<double> s_arr[] = {1, 2};
+  S<double> var(3);
+#pragma omp taskloop lastprivate(var, t_var, s_arr, vec, s_arr, var, sivar)
+  for (int i = 0; i < 10; ++i) {
+    vec[0] = t_var;
+    s_arr[0] = var;
+    sivar = 33;
+  }
+  return tmain<int>();
+#endif
+}
+
+// CHECK: [[SIVAR:.+]] = internal global i{{[0-9]+}} 0,
+// CHECK: define i{{[0-9]+}} @main()
+// CHECK: alloca [[S_DOUBLE_TY]],
+// CHECK: [[TEST:%.+]] = alloca [[S_DOUBLE_TY]],
+// CHECK: [[T_VAR_ADDR:%.+]] = alloca i32,
+// CHECK: [[VEC_ADDR:%.+]] = alloca [2 x i32],
+// CHECK: [[S_ARR_ADDR:%.+]] = alloca [2 x [[S_DOUBLE_TY]]],
+// CHECK: [[VAR_ADDR:%.+]] = alloca [[S_DOUBLE_TY]],
+// CHECK: [[GTID:%.+]] = call i32 @__kmpc_global_thread_num([[LOC:%.+]])
+
+// CHECK: call {{.*}} [[S_DOUBLE_TY_CONSTR:@.+]]([[S_DOUBLE_TY]]* [[TEST]])
+
+// Store original variables in capture struct.
+// CHECK: [[VEC_REF:%.+]] = getelementptr inbounds [[CAP_MAIN_TY]], [[CAP_MAIN_TY]]* %{{.+}}, i{{[0-9]+}} 0, i{{[0-9]+}} 0
+// CHECK: store [2 x i32]* [[VEC_ADDR]], [2 x i32]** [[VEC_REF]],
+// CHECK: [[T_VAR_REF:%.+]] = getelementptr inbounds [[CAP_MAIN_TY]], [[CAP_MAIN_TY]]* %{{.+}}, i{{[0-9]+}} 0, i{{[0-9]+}} 1
+// CHECK: store i32* [[T_VAR_ADDR]], i32** [[T_VAR_REF]],
+// CHECK: [[S_ARR_REF:%.+]] = getelementptr inbounds [[CAP_MAIN_TY]], [[CAP_MAIN_TY]]* %{{.+}}, i{{[0-9]+}} 0, i{{[0-9]+}} 2
+// CHECK: store [2 x [[S_DOUBLE_TY]]]* [[S_ARR_ADDR]], [2 x [[S_DOUBLE_TY]]]** [[S_ARR_REF]],
+// CHECK: [[VAR_REF:%.+]] = getelementptr inbounds [[CAP_MAIN_TY]], [[CAP_MAIN_TY]]* %{{.+}}, i{{[0-9]+}} 0, i{{[0-9]+}} 3
+// CHECK: store [[S_DOUBLE_TY]]* [[VAR_ADDR]], [[S_DOUBLE_TY]]** [[VAR_REF]],
+// CHECK: [[SIVAR_REF:%.+]] = getelementptr inbounds [[CAP_MAIN_TY]], [[CAP_MAIN_TY]]* %{{.+}}, i{{[0-9]+}} 0, i{{[0-9]+}} 4
+// CHECK: store i{{[0-9]+}}* [[SIVAR]], i{{[0-9]+}}** [[SIVAR_REF]],
+
+// Allocate task.
+// Returns struct kmp_task_t {
+//         [[KMP_TASK_T]] task_data;
+//         [[KMP_TASK_MAIN_TY]] privates;
+//       };
+// CHECK: [[RES:%.+]] = call i8* @__kmpc_omp_task_alloc([[LOC]], i32 [[GTID]], i32 1, i64 104, i64 40, i32 (i32, i8*)* bitcast (i32 (i32, [[KMP_TASK_MAIN_TY]]*)* [[TASK_ENTRY:@[^ ]+]] to i32 (i32, i8*)*))
+// CHECK: [[RES_KMP_TASK:%.+]] = bitcast i8* [[RES]] to [[KMP_TASK_MAIN_TY]]*
+
+// Fill kmp_task_t->shareds by copying from original capture argument.
+// CHECK: [[TASK:%.+]] = getelementptr inbounds [[KMP_TASK_MAIN_TY]], [[KMP_TASK_MAIN_TY]]* [[RES_KMP_TASK]], i{{[0-9]+}} 0, i{{[0-9]+}} 0
+// CHECK: [[SHAREDS_REF_ADDR:%.+]] = getelementptr inbounds [[KMP_TASK_T_TY]], [[KMP_TASK_T_TY]]* [[TASK]], i{{[0-9]+}} 0, i{{[0-9]+}} 0
+// CHECK: [[SHAREDS_REF:%.+]] = load i8*, i8** [[SHAREDS_REF_ADDR]],
+// CHECK: [[CAPTURES_ADDR:%.+]] = bitcast [[CAP_MAIN_TY]]* %{{.+}} to i8*
+// CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* [[SHAREDS_REF]], i8* [[CAPTURES_ADDR]], i64 40, i32 8, i1 false)
+
+// Initialize kmp_task_t->privates with default values (no init for simple types, default constructors for classes).
+// Also copy address of private copy to the corresponding shareds reference.
+// CHECK: [[PRIVATES:%.+]] = getelementptr inbounds [[KMP_TASK_MAIN_TY]], [[KMP_TASK_MAIN_TY]]* [[RES_KMP_TASK]], i{{[0-9]+}} 0, i{{[0-9]+}} 1
+
+// Constructors for s_arr and var.
+// s_arr;
+// CHECK: [[PRIVATE_S_ARR_REF:%.+]] = getelementptr inbounds [[PRIVATES_MAIN_TY]], [[PRIVATES_MAIN_TY]]* [[PRIVATES]], i{{[0-9]+}} 0, i{{[0-9]+}} 0
+// CHECK: call {{.*}} [[S_DOUBLE_TY_CONSTR]]([[S_DOUBLE_TY]]* [[S_ARR_CUR:%[^,]+]])
+// CHECK: getelementptr inbounds [[S_DOUBLE_TY]], [[S_DOUBLE_TY]]* [[S_ARR_CUR]], i{{.+}} 1
+// CHECK: icmp eq
+// CHECK: br i1
+
+// var;
+// CHECK: [[PRIVATE_VAR_REF:%.+]] = getelementptr inbounds [[PRIVATES_MAIN_TY]], [[PRIVATES_MAIN_TY]]* [[PRIVATES]], i{{.+}} 0, i{{.+}} 1
+// CHECK: call {{.*}} [[S_DOUBLE_TY_CONSTR]]([[S_DOUBLE_TY]]* [[PRIVATE_VAR_REF]])
+
+// t_var;
+// CHECK: [[PRIVATE_T_VAR_REF:%.+]] = getelementptr inbounds [[PRIVATES_MAIN_TY]], [[PRIVATES_MAIN_TY]]* [[PRIVATES]], i{{.+}} 0, i{{.+}} 2
+// vec;
+// CHECK: [[PRIVATE_VEC_REF:%.+]] = getelementptr inbounds [[PRIVATES_MAIN_TY]], [[PRIVATES_MAIN_TY]]* [[PRIVATES]], i{{.+}} 0, i{{.+}} 3
+// sivar;
+// CHECK: [[PRIVATE_SIVAR_REF:%.+]] = getelementptr inbounds [[PRIVATES_MAIN_TY]], [[PRIVATES_MAIN_TY]]* [[PRIVATES]], i{{.+}} 0, i{{.+}} 4
+
+// Provide pointer to destructor function, which will destroy private variables at the end of the task.
+// CHECK: [[DESTRUCTORS_REF:%.+]] = getelementptr inbounds [[KMP_TASK_T_TY]], [[KMP_TASK_T_TY]]* [[TASK]], i{{.+}} 0, i{{.+}} 3
+// CHECK: store i32 (i32, i8*)* bitcast (i32 (i32, [[KMP_TASK_MAIN_TY]]*)* [[DESTRUCTORS:@.+]] to i32 (i32, i8*)*), i32 (i32, i8*)** [[DESTRUCTORS_REF]],
+
+// Start task.
+// CHECK: call void @__kmpc_taskloop([[LOC]], i32 [[GTID]], i8* [[RES]], i32 1, i64* %{{.+}}, i64* %{{.+}}, i64 %{{.+}}, i32 0, i32 0, i64 0, i8* bitcast (void ([[KMP_TASK_MAIN_TY]]*, [[KMP_TASK_MAIN_TY]]*, i32)* [[MAIN_DUP:@.+]] to i8*))
+
+// CHECK: = call i{{.+}} [[TMAIN_INT:@.+]]()
+
+// No destructors must be called for private copies of s_arr and var.
+// CHECK-NOT: getelementptr inbounds [[PRIVATES_MAIN_TY]], [[PRIVATES_MAIN_TY]]* [[PRIVATES]], i{{.+}} 0, i{{.+}} 2
+// CHECK-NOT: getelementptr inbounds [[PRIVATES_MAIN_TY]], [[PRIVATES_MAIN_TY]]* [[PRIVATES]], i{{.+}} 0, i{{.+}} 3
+// CHECK: call void [[S_DOUBLE_TY_DESTR:@.+]]([[S_DOUBLE_TY]]*
+// CHECK-NOT: getelementptr inbounds [[PRIVATES_MAIN_TY]], [[PRIVATES_MAIN_TY]]* [[PRIVATES]], i{{.+}} 0, i{{.+}} 2
+// CHECK-NOT: getelementptr inbounds [[PRIVATES_MAIN_TY]], [[PRIVATES_MAIN_TY]]* [[PRIVATES]], i{{.+}} 0, i{{.+}} 3
+// CHECK: ret
+//
+
+// CHECK: define internal void [[PRIVATES_MAP_FN:@.+]]([[PRIVATES_MAIN_TY]]* noalias, [[S_DOUBLE_TY]]** noalias, i32** noalias, [2 x [[S_DOUBLE_TY]]]** noalias, [2 x i32]** noalias, i32** noalias)
+// CHECK: [[PRIVATES:%.+]] = load [[PRIVATES_MAIN_TY]]*, [[PRIVATES_MAIN_TY]]**
+// CHECK: [[PRIV_S_VAR:%.+]] = getelementptr inbounds [[PRIVATES_MAIN_TY]], [[PRIVATES_MAIN_TY]]* [[PRIVATES]], i32 0, i32 0
+// CHECK: [[ARG3:%.+]] = load [2 x [[S_DOUBLE_TY]]]**, [2 x [[S_DOUBLE_TY]]]*** %{{.+}},
+// CHECK: store [2 x [[S_DOUBLE_TY]]]* [[PRIV_S_VAR]], [2 x [[S_DOUBLE_TY]]]** [[ARG3]],
+// CHECK: [[PRIV_VAR:%.+]] = getelementptr inbounds [[PRIVATES_MAIN_TY]], [[PRIVATES_MAIN_TY]]* [[PRIVATES]], i32 0, i32 1
+// CHECK: [[ARG1:%.+]] = load [[S_DOUBLE_TY]]**, [[S_DOUBLE_TY]]*** {{.+}},
+// CHECK: store [[S_DOUBLE_TY]]* [[PRIV_VAR]], [[S_DOUBLE_TY]]** [[ARG1]],
+// CHECK: [[PRIV_T_VAR:%.+]] = getelementptr inbounds [[PRIVATES_MAIN_TY]], [[PRIVATES_MAIN_TY]]* [[PRIVATES]], i32 0, i32 2
+// CHECK: [[ARG2:%.+]] = load i32**, i32*** %{{.+}},
+// CHECK: store i32* [[PRIV_T_VAR]], i32** [[ARG2]],
+// CHECK: [[PRIV_VEC:%.+]] = getelementptr inbounds [[PRIVATES_MAIN_TY]], [[PRIVATES_MAIN_TY]]* [[PRIVATES]], i32 0, i32 3
+// CHECK: [[ARG4:%.+]] = load [2 x i32]**, [2 x i32]*** %{{.+}},
+// CHECK: store [2 x i32]* [[PRIV_VEC]], [2 x i32]** [[ARG4]],
+// CHECK: [[PRIV_SIVAR:%.+]] = getelementptr inbounds [[PRIVATES_MAIN_TY]], [[PRIVATES_MAIN_TY]]* [[PRIVATES]], i32 0, i32 4
+// CHECK: [[ARG5:%.+]] = load i{{[0-9]+}}**, i{{[0-9]+}}*** %{{.+}},
+// CHECK: store i{{[0-9]+}}* [[PRIV_SIVAR]], i{{[0-9]+}}** [[ARG5]],
+// CHECK: ret void
+
+// CHECK: define internal i32 [[TASK_ENTRY]](i32, [[KMP_TASK_MAIN_TY]]* noalias)
+
+// CHECK: [[PRIV_VAR_ADDR:%.+]] = alloca [[S_DOUBLE_TY]]*,
+// CHECK: [[PRIV_T_VAR_ADDR:%.+]] = alloca i32*,
+// CHECK: [[PRIV_S_ARR_ADDR:%.+]] = alloca [2 x [[S_DOUBLE_TY]]]*,
+// CHECK: [[PRIV_VEC_ADDR:%.+]] = alloca [2 x i32]*,
+// CHECK: [[PRIV_SIVAR_ADDR:%.+]] = alloca i32*,
+// CHECK: store void (i8*, ...)* bitcast (void ([[PRIVATES_MAIN_TY]]*, [[S_DOUBLE_TY]]**, i32**, [2 x [[S_DOUBLE_TY]]]**, [2 x i32]**, i32**)* [[PRIVATES_MAP_FN]] to void (i8*, ...)*), void (i8*, ...)** [[MAP_FN_ADDR:%.+]],
+// CHECK: [[MAP_FN:%.+]] = load void (i8*, ...)*, void (i8*, ...)** [[MAP_FN_ADDR]],
+
+// CHECK: call void (i8*, ...) [[MAP_FN]](i8* %{{.+}}, [[S_DOUBLE_TY]]** [[PRIV_VAR_ADDR]], i32** [[PRIV_T_VAR_ADDR]], [2 x [[S_DOUBLE_TY]]]** [[PRIV_S_ARR_ADDR]], [2 x i32]** [[PRIV_VEC_ADDR]], i32** [[PRIV_SIVAR_ADDR]])
+
+// CHECK: [[PRIV_VAR:%.+]] = load [[S_DOUBLE_TY]]*, [[S_DOUBLE_TY]]** [[PRIV_VAR_ADDR]],
+// CHECK: [[PRIV_T_VAR:%.+]] = load i32*, i32** [[PRIV_T_VAR_ADDR]],
+// CHECK: [[PRIV_S_ARR:%.+]] = load [2 x [[S_DOUBLE_TY]]]*, [2 x [[S_DOUBLE_TY]]]** [[PRIV_S_ARR_ADDR]],
+// CHECK: [[PRIV_VEC:%.+]] = load [2 x i32]*, [2 x i32]** [[PRIV_VEC_ADDR]],
+// CHECK: [[PRIV_SIVAR:%.+]] = load i32*, i32** [[PRIV_SIVAR_ADDR]],
+
+// Privates actually are used.
+// CHECK-DAG: [[PRIV_VAR]]
+// CHECK-DAG: [[PRIV_T_VAR]]
+// CHECK-DAG: [[PRIV_S_ARR]]
+// CHECK-DAG: [[PRIV_VEC]]
+// CHECK-DAG: [[PRIV_SIVAR]]
+
+// CHECK:     icmp ne i32 %{{.+}}, 0
+// CHECK-NEXT: br i1
+// CHECK: bitcast [[S_DOUBLE_TY]]* %{{.+}} to i8*
+// CHECK: bitcast [[S_DOUBLE_TY]]* %{{.+}} to i8*
+// CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* %
+// CHECK: load i32, i32* %
+// CHECK: store i32 %{{.+}}, i32* %
+// CHECK: getelementptr inbounds [2 x [[S_DOUBLE_TY]]], [2 x [[S_DOUBLE_TY]]]* %
+// CHECK: phi [[S_DOUBLE_TY]]*
+// CHECK: phi [[S_DOUBLE_TY]]*
+// CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* %
+// CHECK: icmp eq [[S_DOUBLE_TY]]* %
+// CHECK-NEXT: br i1
+// CHECK: bitcast [2 x i32]* %{{.+}} to i8*
+// CHECK: bitcast [2 x i32]* %{{.+}} to i8*
+// CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* %
+// CHECK: load i32, i32* %
+// CHECK: store i32 %{{.+}}, i32* %
+// CHECK: br label
+// CHECK: ret
+
+// CHECK: define internal void [[MAIN_DUP]]([[KMP_TASK_MAIN_TY]]*, [[KMP_TASK_MAIN_TY]]*, i32)
+// CHECK: getelementptr inbounds [[KMP_TASK_MAIN_TY]], [[KMP_TASK_MAIN_TY]]* %{{.+}}, i32 0, i32 0
+// CHECK: getelementptr inbounds [[KMP_TASK_T_TY]], [[KMP_TASK_T_TY]]* %{{.+}}, i32 0, i32 7
+// CHECK: load i32, i32* %
+// CHECK: store i32 %{{.+}}, i32* %
+// CHECK: getelementptr inbounds [[KMP_TASK_MAIN_TY]], [[KMP_TASK_MAIN_TY]]* %{{.+}}, i32 0, i32 1
+// CHECK: getelementptr inbounds [[PRIVATES_MAIN_TY]], [[PRIVATES_MAIN_TY]]* %{{.+}}, i32 0, i32 0
+// CHECK: getelementptr inbounds [2 x [[S_DOUBLE_TY]]], [2 x [[S_DOUBLE_TY]]]* %{{.+}}, i32 0, i32 0
+// CHECK: getelementptr inbounds [[S_DOUBLE_TY]], [[S_DOUBLE_TY]]* %{{.+}}, i64 2
+// CHECK: br label %
+
+// CHECK: phi [[S_DOUBLE_TY]]*
+// CHECK: call {{.*}} [[S_DOUBLE_TY_CONSTR]]([[S_DOUBLE_TY]]*
+// CHECK: getelementptr inbounds [[S_DOUBLE_TY]], [[S_DOUBLE_TY]]* %{{.+}}, i64 1
+// CHECK: icmp eq [[S_DOUBLE_TY]]* %
+// CHECK: br i1 %
+
+// CHECK: getelementptr inbounds [[PRIVATES_MAIN_TY]], [[PRIVATES_MAIN_TY]]* %{{.+}}, i32 0, i32 1
+// CHECK: call {{.*}} [[S_DOUBLE_TY_CONSTR]]([[S_DOUBLE_TY]]*
+// CHECK: ret void
+
+// CHECK: define internal i32 [[DESTRUCTORS]](i32, [[KMP_TASK_MAIN_TY]]* noalias)
+// CHECK: [[PRIVATES:%.+]] = getelementptr inbounds [[KMP_TASK_MAIN_TY]], [[KMP_TASK_MAIN_TY]]* [[RES_KMP_TASK:%.+]], i{{[0-9]+}} 0, i{{[0-9]+}} 1
+// CHECK: [[PRIVATE_S_ARR_REF:%.+]] = getelementptr inbounds [[PRIVATES_MAIN_TY]], [[PRIVATES_MAIN_TY]]* [[PRIVATES]], i{{.+}} 0, i{{.+}} 0
+// CHECK: [[PRIVATE_VAR_REF:%.+]] = getelementptr inbounds [[PRIVATES_MAIN_TY]], [[PRIVATES_MAIN_TY]]* [[PRIVATES]], i{{.+}} 0, i{{.+}} 1
+// CHECK: call {{.*}} [[S_DOUBLE_TY_DESTR]]([[S_DOUBLE_TY]]* [[PRIVATE_VAR_REF]])
+// CHECK: getelementptr inbounds [2 x [[S_DOUBLE_TY]]], [2 x [[S_DOUBLE_TY]]]* [[PRIVATE_S_ARR_REF]], i{{.+}} 0, i{{.+}} 0
+// CHECK: getelementptr inbounds [[S_DOUBLE_TY]], [[S_DOUBLE_TY]]* %{{.+}}, i{{.+}} 2
+// CHECK: [[PRIVATE_S_ARR_ELEM_REF:%.+]] = getelementptr inbounds [[S_DOUBLE_TY]], [[S_DOUBLE_TY]]* %{{.+}}, i{{.+}} -1
+// CHECK: call {{.*}} [[S_DOUBLE_TY_DESTR]]([[S_DOUBLE_TY]]* [[PRIVATE_S_ARR_ELEM_REF]])
+// CHECK: icmp eq
+// CHECK: br i1
+// CHECK: ret i32
+
+// CHECK: define {{.*}} i{{[0-9]+}} [[TMAIN_INT]]()
+// CHECK: alloca [[S_INT_TY]],
+// CHECK: [[TEST:%.+]] = alloca [[S_INT_TY]],
+// CHECK: [[T_VAR_ADDR:%.+]] = alloca i32, align 128
+// CHECK: [[VEC_ADDR:%.+]] = alloca [2 x i32],
+// CHECK: [[S_ARR_ADDR:%.+]] = alloca [2 x [[S_INT_TY]]],
+// CHECK: [[VAR_ADDR:%.+]] = alloca [[S_INT_TY]],
+// CHECK: [[GTID:%.+]] = call i32 @__kmpc_global_thread_num([[LOC:%.+]])
+
+// CHECK: call {{.*}} [[S_INT_TY_CONSTR:@.+]]([[S_INT_TY]]* [[TEST]])
+
+// Store original variables in capture struct.
+// CHECK: [[VEC_REF:%.+]] = getelementptr inbounds [[CAP_TMAIN_TY]], [[CAP_TMAIN_TY]]* %{{.+}}, i{{[0-9]+}} 0, i{{[0-9]+}} 0
+// CHECK: store [2 x i32]* [[VEC_ADDR]], [2 x i32]** [[VEC_REF]],
+// CHECK: [[T_VAR_REF:%.+]] = getelementptr inbounds [[CAP_TMAIN_TY]], [[CAP_TMAIN_TY]]* %{{.+}}, i{{[0-9]+}} 0, i{{[0-9]+}} 1
+// CHECK: store i32* [[T_VAR_ADDR]], i32** [[T_VAR_REF]],
+// CHECK: [[S_ARR_REF:%.+]] = getelementptr inbounds [[CAP_TMAIN_TY]], [[CAP_TMAIN_TY]]* %{{.+}}, i{{[0-9]+}} 0, i{{[0-9]+}} 2
+// CHECK: store [2 x [[S_INT_TY]]]* [[S_ARR_ADDR]], [2 x [[S_INT_TY]]]** [[S_ARR_REF]],
+// CHECK: [[VAR_REF:%.+]] = getelementptr inbounds [[CAP_TMAIN_TY]], [[CAP_TMAIN_TY]]* %{{.+}}, i{{[0-9]+}} 0, i{{[0-9]+}} 3
+// CHECK: store [[S_INT_TY]]* [[VAR_ADDR]], [[S_INT_TY]]** [[VAR_REF]],
+
+// Allocate task.
+// Returns struct kmp_task_t {
+//         [[KMP_TASK_T_TY]] task_data;
+//         [[KMP_TASK_TMAIN_TY]] privates;
+//       };
+// CHECK: [[RES:%.+]] = call i8* @__kmpc_omp_task_alloc([[LOC]], i32 [[GTID]], i32 1, i64 256, i64 32, i32 (i32, i8*)* bitcast (i32 (i32, [[KMP_TASK_TMAIN_TY]]*)* [[TASK_ENTRY:@[^ ]+]] to i32 (i32, i8*)*))
+// CHECK: [[RES_KMP_TASK:%.+]] = bitcast i8* [[RES]] to [[KMP_TASK_TMAIN_TY]]*
+
+// Fill kmp_task_t->shareds by copying from original capture argument.
+// CHECK: [[TASK:%.+]] = getelementptr inbounds [[KMP_TASK_TMAIN_TY]], [[KMP_TASK_TMAIN_TY]]* [[RES_KMP_TASK]], i{{[0-9]+}} 0, i{{[0-9]+}} 0
+// CHECK: [[SHAREDS_REF_ADDR:%.+]] = getelementptr inbounds [[KMP_TASK_T_TY]], [[KMP_TASK_T_TY]]* [[TASK]], i{{[0-9]+}} 0, i{{[0-9]+}} 0
+// CHECK: [[SHAREDS_REF:%.+]] = load i8*, i8** [[SHAREDS_REF_ADDR]],
+// CHECK: [[CAPTURES_ADDR:%.+]] = bitcast [[CAP_TMAIN_TY]]* %{{.+}} to i8*
+// CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* [[SHAREDS_REF]], i8* [[CAPTURES_ADDR]], i64 32, i32 8, i1 false)
+
+// Initialize kmp_task_t->privates with default values (no init for simple types, default constructors for classes).
+// CHECK: [[PRIVATES:%.+]] = getelementptr inbounds [[KMP_TASK_TMAIN_TY]], [[KMP_TASK_TMAIN_TY]]* [[RES_KMP_TASK]], i{{[0-9]+}} 0, i{{[0-9]+}} 2
+
+// t_var;
+// CHECK: [[PRIVATE_T_VAR_REF:%.+]] = getelementptr inbounds [[PRIVATES_TMAIN_TY]], [[PRIVATES_TMAIN_TY]]* [[PRIVATES]], i{{.+}} 0, i{{.+}} 0
+
+// vec;
+// CHECK: [[PRIVATE_VEC_REF:%.+]] = getelementptr inbounds [[PRIVATES_TMAIN_TY]], [[PRIVATES_TMAIN_TY]]* [[PRIVATES]], i{{.+}} 0, i{{.+}} 1
+
+// Constructors for s_arr and var.
+// a_arr;
+// CHECK: [[PRIVATE_S_ARR_REF:%.+]] = getelementptr inbounds [[PRIVATES_TMAIN_TY]], [[PRIVATES_TMAIN_TY]]* [[PRIVATES]], i{{[0-9]+}} 0, i{{[0-9]+}} 2
+// CHECK: getelementptr inbounds [2 x [[S_INT_TY]]], [2 x [[S_INT_TY]]]* [[PRIVATE_S_ARR_REF]], i{{.+}} 0, i{{.+}} 0
+// CHECK: getelementptr inbounds [[S_INT_TY]], [[S_INT_TY]]* %{{.+}}, i{{.+}} 2
+// CHECK: call {{.*}} [[S_INT_TY_CONSTR]]([[S_INT_TY]]* [[S_ARR_CUR:%[^,]+]])
+// CHECK: getelementptr inbounds [[S_INT_TY]], [[S_INT_TY]]* [[S_ARR_CUR]], i{{.+}} 1
+// CHECK: icmp eq
+// CHECK: br i1
+
+// var;
+// CHECK: [[PRIVATE_VAR_REF:%.+]] = getelementptr inbounds [[PRIVATES_TMAIN_TY]], [[PRIVATES_TMAIN_TY]]* [[PRIVATES]], i{{.+}} 0, i{{.+}} 3
+// CHECK: call {{.*}} [[S_INT_TY_CONSTR]]([[S_INT_TY]]* [[PRIVATE_VAR_REF]])
+
+// Provide pointer to destructor function, which will destroy private variables at the end of the task.
+// CHECK: [[DESTRUCTORS_REF:%.+]] = getelementptr inbounds [[KMP_TASK_T_TY]], [[KMP_TASK_T_TY]]* [[TASK]], i{{.+}} 0, i{{.+}} 3
+// CHECK: store i32 (i32, i8*)* bitcast (i32 (i32, [[KMP_TASK_TMAIN_TY]]*)* [[DESTRUCTORS:@.+]] to i32 (i32, i8*)*), i32 (i32, i8*)** [[DESTRUCTORS_REF]],
+
+// Start task.
+// CHECK: call void @__kmpc_taskloop([[LOC]], i32 [[GTID]], i8* [[RES]], i32 1, i64* %{{.+}}, i64* %{{.+}}, i64 %{{.+}}, i32 0, i32 0, i64 0, i8* bitcast (void ([[KMP_TASK_TMAIN_TY]]*, [[KMP_TASK_TMAIN_TY]]*, i32)* [[TMAIN_DUP:@.+]] to i8*))
+
+// No destructors must be called for private copies of s_arr and var.
+// CHECK-NOT: getelementptr inbounds [[PRIVATES_TMAIN_TY]], [[PRIVATES_TMAIN_TY]]* [[PRIVATES]], i{{.+}} 0, i{{.+}} 2
+// CHECK-NOT: getelementptr inbounds [[PRIVATES_TMAIN_TY]], [[PRIVATES_TMAIN_TY]]* [[PRIVATES]], i{{.+}} 0, i{{.+}} 3
+// CHECK: call void [[S_INT_TY_DESTR:@.+]]([[S_INT_TY]]*
+// CHECK-NOT: getelementptr inbounds [[PRIVATES_TMAIN_TY]], [[PRIVATES_TMAIN_TY]]* [[PRIVATES]], i{{.+}} 0, i{{.+}} 2
+// CHECK-NOT: getelementptr inbounds [[PRIVATES_TMAIN_TY]], [[PRIVATES_TMAIN_TY]]* [[PRIVATES]], i{{.+}} 0, i{{.+}} 3
+// CHECK: ret
+//
+
+// CHECK: define internal void [[PRIVATES_MAP_FN:@.+]]([[PRIVATES_TMAIN_TY]]* noalias, i32** noalias, [2 x i32]** noalias, [2 x [[S_INT_TY]]]** noalias, [[S_INT_TY]]** noalias)
+// CHECK: [[PRIVATES:%.+]] = load [[PRIVATES_TMAIN_TY]]*, [[PRIVATES_TMAIN_TY]]**
+// CHECK: [[PRIV_T_VAR:%.+]] = getelementptr inbounds [[PRIVATES_TMAIN_TY]], [[PRIVATES_TMAIN_TY]]* [[PRIVATES]], i32 0, i32 0
+// CHECK: [[ARG1:%.+]] = load i32**, i32*** %{{.+}},
+// CHECK: store i32* [[PRIV_T_VAR]], i32** [[ARG1]],
+// CHECK: [[PRIV_VEC:%.+]] = getelementptr inbounds [[PRIVATES_TMAIN_TY]], [[PRIVATES_TMAIN_TY]]* [[PRIVATES]], i32 0, i32 1
+// CHECK: [[ARG2:%.+]] = load [2 x i32]**, [2 x i32]*** %{{.+}},
+// CHECK: store [2 x i32]* [[PRIV_VEC]], [2 x i32]** [[ARG2]],
+// CHECK: [[PRIV_S_VAR:%.+]] = getelementptr inbounds [[PRIVATES_TMAIN_TY]], [[PRIVATES_TMAIN_TY]]* [[PRIVATES]], i32 0, i32 2
+// CHECK: [[ARG3:%.+]] = load [2 x [[S_INT_TY]]]**, [2 x [[S_INT_TY]]]*** %{{.+}},
+// CHECK: store [2 x [[S_INT_TY]]]* [[PRIV_S_VAR]], [2 x [[S_INT_TY]]]** [[ARG3]],
+// CHECK: [[PRIV_VAR:%.+]] = getelementptr inbounds [[PRIVATES_TMAIN_TY]], [[PRIVATES_TMAIN_TY]]* [[PRIVATES]], i32 0, i32 3
+// CHECK: [[ARG4:%.+]] = load [[S_INT_TY]]**, [[S_INT_TY]]*** {{.+}},
+// CHECK: store [[S_INT_TY]]* [[PRIV_VAR]], [[S_INT_TY]]** [[ARG4]],
+// CHECK: ret void
+
+// CHECK: define internal i32 [[TASK_ENTRY]](i32, [[KMP_TASK_TMAIN_TY]]* noalias)
+// CHECK: alloca i32*,
+// CHECK-DAG: [[PRIV_T_VAR_ADDR:%.+]] = alloca i32*,
+// CHECK-DAG: [[PRIV_VEC_ADDR:%.+]] = alloca [2 x i32]*,
+// CHECK-DAG: [[PRIV_S_ARR_ADDR:%.+]] = alloca [2 x [[S_INT_TY]]]*,
+// CHECK-DAG: [[PRIV_VAR_ADDR:%.+]] = alloca [[S_INT_TY]]*,
+// CHECK: store void (i8*, ...)* bitcast (void ([[PRIVATES_TMAIN_TY]]*, i32**, [2 x i32]**, [2 x [[S_INT_TY]]]**, [[S_INT_TY]]**)* [[PRIVATES_MAP_FN]] to void (i8*, ...)*), void (i8*, ...)** [[MAP_FN_ADDR:%.+]],
+// CHECK: [[MAP_FN:%.+]] = load void (i8*, ...)*, void (i8*, ...)** [[MAP_FN_ADDR]],
+// CHECK: call void (i8*, ...) [[MAP_FN]](i8* %{{.+}}, i32** [[PRIV_T_VAR_ADDR]], [2 x i32]** [[PRIV_VEC_ADDR]], [2 x [[S_INT_TY]]]** [[PRIV_S_ARR_ADDR]], [[S_INT_TY]]** [[PRIV_VAR_ADDR]])
+// CHECK: [[PRIV_T_VAR:%.+]] = load i32*, i32** [[PRIV_T_VAR_ADDR]],
+// CHECK: [[PRIV_VEC:%.+]] = load [2 x i32]*, [2 x i32]** [[PRIV_VEC_ADDR]],
+// CHECK: [[PRIV_S_ARR:%.+]] = load [2 x [[S_INT_TY]]]*, [2 x [[S_INT_TY]]]** [[PRIV_S_ARR_ADDR]],
+// CHECK: [[PRIV_VAR:%.+]] = load [[S_INT_TY]]*, [[S_INT_TY]]** [[PRIV_VAR_ADDR]],
+
+// Privates actually are used.
+// CHECK-DAG: [[PRIV_VAR]]
+// CHECK-DAG: [[PRIV_T_VAR]]
+// CHECK-DAG: [[PRIV_S_ARR]]
+// CHECK-DAG: [[PRIV_VEC]]
+
+// CHECK:     icmp ne i32 %{{.+}}, 0
+// CHECK-NEXT: br i1
+// CHECK: load i32, i32* %
+// CHECK: store i32 %{{.+}}, i32* %
+// CHECK: bitcast [2 x i32]* %{{.+}} to i8*
+// CHECK: bitcast [2 x i32]* %{{.+}} to i8*
+// CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* %
+// CHECK: getelementptr inbounds [2 x [[S_INT_TY]]], [2 x [[S_INT_TY]]]* %
+// CHECK: phi [[S_INT_TY]]*
+// CHECK: phi [[S_INT_TY]]*
+// CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* %
+// CHECK: icmp eq [[S_INT_TY]]* %
+// CHECK-NEXT: br i1
+// CHECK: bitcast [[S_INT_TY]]* %{{.+}} to i8*
+// CHECK: bitcast [[S_INT_TY]]* %{{.+}} to i8*
+// CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* %
+// CHECK: br label
+// CHECK: ret
+
+// CHECK: define internal void [[TMAIN_DUP]]([[KMP_TASK_TMAIN_TY]]*, [[KMP_TASK_TMAIN_TY]]*, i32)
+// CHECK: getelementptr inbounds [[KMP_TASK_TMAIN_TY]], [[KMP_TASK_TMAIN_TY]]* %{{.+}}, i32 0, i32 0
+// CHECK: getelementptr inbounds [[KMP_TASK_T_TY]], [[KMP_TASK_T_TY]]* %{{.+}}, i32 0, i32 7
+// CHECK: load i32, i32* %
+// CHECK: store i32 %{{.+}}, i32* %
+// CHECK: getelementptr inbounds [[KMP_TASK_TMAIN_TY]], [[KMP_TASK_TMAIN_TY]]* %{{.+}}, i32 0, i32 2
+// CHECK: getelementptr inbounds [[PRIVATES_TMAIN_TY]], [[PRIVATES_TMAIN_TY]]* %{{.+}}, i32 0, i32 2
+// CHECK: getelementptr inbounds [2 x [[S_INT_TY]]], [2 x [[S_INT_TY]]]* %{{.+}}, i32 0, i32 0
+// CHECK: getelementptr inbounds [[S_INT_TY]], [[S_INT_TY]]* %{{.+}}, i64 2
+// CHECK: br label %
+
+// CHECK: phi [[S_INT_TY]]*
+// CHECK: call {{.*}} [[S_INT_TY_CONSTR]]([[S_INT_TY]]*
+// CHECK: getelementptr inbounds [[S_INT_TY]], [[S_INT_TY]]* %{{.+}}, i64 1
+// CHECK: icmp eq [[S_INT_TY]]* %
+// CHECK: br i1 %
+
+// CHECK: getelementptr inbounds [[PRIVATES_TMAIN_TY]], [[PRIVATES_TMAIN_TY]]* %{{.+}}, i32 0, i32 3
+// CHECK: call {{.*}} [[S_INT_TY_CONSTR]]([[S_INT_TY]]*
+// CHECK: ret void
+
+// CHECK: define internal i32 [[DESTRUCTORS]](i32, [[KMP_TASK_TMAIN_TY]]* noalias)
+// CHECK: [[PRIVATES:%.+]] = getelementptr inbounds [[KMP_TASK_TMAIN_TY]], [[KMP_TASK_TMAIN_TY]]* [[RES_KMP_TASK:%.+]], i{{[0-9]+}} 0, i{{[0-9]+}} 2
+// CHECK: [[PRIVATE_S_ARR_REF:%.+]] = getelementptr inbounds [[PRIVATES_TMAIN_TY]], [[PRIVATES_TMAIN_TY]]* [[PRIVATES]], i{{.+}} 0, i{{.+}} 2
+// CHECK: [[PRIVATE_VAR_REF:%.+]] = getelementptr inbounds [[PRIVATES_TMAIN_TY]], [[PRIVATES_TMAIN_TY]]* [[PRIVATES]], i{{.+}} 0, i{{.+}} 3
+// CHECK: call void [[S_INT_TY_DESTR]]([[S_INT_TY]]* [[PRIVATE_VAR_REF]])
+// CHECK: getelementptr inbounds [2 x [[S_INT_TY]]], [2 x [[S_INT_TY]]]* [[PRIVATE_S_ARR_REF]], i{{.+}} 0, i{{.+}} 0
+// CHECK: getelementptr inbounds [[S_INT_TY]], [[S_INT_TY]]* %{{.+}}, i{{.+}} 2
+// CHECK: [[PRIVATE_S_ARR_ELEM_REF:%.+]] = getelementptr inbounds [[S_INT_TY]], [[S_INT_TY]]* %{{.+}}, i{{.+}} -1
+// CHECK: call void [[S_INT_TY_DESTR]]([[S_INT_TY]]* [[PRIVATE_S_ARR_ELEM_REF]])
+// CHECK: icmp eq
+// CHECK: br i1
+// CHECK: ret i32
+
+#endif
+#else
+// ARRAY-LABEL: array_func
+struct St {
+  int a, b;
+  St() : a(0), b(0) {}
+  St(const St &) {}
+  ~St() {}
+};
+
+void array_func(int n, float a[n], St s[2]) {
+// ARRAY: call i8* @__kmpc_omp_task_alloc(
+// ARRAY: call void @__kmpc_taskloop(
+// ARRAY: store float** %{{.+}}, float*** %{{.+}},
+// ARRAY: store %struct.St** %{{.+}}, %struct.St*** %{{.+}},
+// ARRAY: icmp ne i32 %{{.+}}, 0
+// ARRAY: store float* %{{.+}}, float** %{{.+}},
+// ARRAY: store %struct.St* %{{.+}}, %struct.St** %{{.+}},
+#pragma omp taskloop lastprivate(a, s)
+  for (int i = 0; i < 10; ++i)
+    ;
+}
+#endif
+

Added: cfe/trunk/test/OpenMP/taskloop_simd_lastprivate_codegen.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/OpenMP/taskloop_simd_lastprivate_codegen.cpp?rev=268618&view=auto
==============================================================================
--- cfe/trunk/test/OpenMP/taskloop_simd_lastprivate_codegen.cpp (added)
+++ cfe/trunk/test/OpenMP/taskloop_simd_lastprivate_codegen.cpp Thu May  5 03:46:22 2016
@@ -0,0 +1,527 @@
+// RUN: %clang_cc1 -verify -fopenmp -x c++ -triple x86_64-apple-darwin10 -emit-llvm %s -o - | FileCheck %s
+// RUN: %clang_cc1 -fopenmp -x c++ -std=c++11 -triple x86_64-apple-darwin10 -emit-pch -o %t %s
+// RUN: %clang_cc1 -fopenmp -x c++ -triple x86_64-apple-darwin10 -std=c++11 -include-pch %t -verify %s -emit-llvm -o - | FileCheck %s
+// RUN: %clang_cc1 -verify -fopenmp -x c++ -std=c++11 -DLAMBDA -triple x86_64-apple-darwin10 -emit-llvm %s -o - | FileCheck -check-prefix=LAMBDA %s
+// RUN: %clang_cc1 -verify -fopenmp -x c++ -fblocks -DBLOCKS -triple x86_64-apple-darwin10 -emit-llvm %s -o - | FileCheck -check-prefix=BLOCKS %s
+// RUN: %clang_cc1 -verify -fopenmp -x c++ -std=c++11 -DARRAY -triple x86_64-apple-darwin10 -emit-llvm %s -o - | FileCheck -check-prefix=ARRAY %s
+// expected-no-diagnostics
+// REQUIRES: x86-registered-target
+// It doesn't pass on win32.
+// REQUIRES: shell
+#ifndef ARRAY
+#ifndef HEADER
+#define HEADER
+
+template <class T>
+struct S {
+  T f;
+  S(T a) : f(a) {}
+  S() : f() {}
+  S(const S &s, T t = T()) : f(s.f + t) {}
+  operator T() { return T(); }
+  ~S() {}
+};
+
+volatile double g;
+
+// CHECK-DAG: [[KMP_TASK_T_TY:%.+]] = type { i8*, i32 (i32, i8*)*, i32, i32 (i32, i8*)*, i64, i64, i64, i32 }
+// CHECK-DAG: [[S_DOUBLE_TY:%.+]] = type { double }
+// CHECK-DAG: [[PRIVATES_MAIN_TY:%.+]] = type {{.?}}{ [2 x [[S_DOUBLE_TY]]], [[S_DOUBLE_TY]], i32, [2 x i32]
+// CHECK-DAG: [[CAP_MAIN_TY:%.+]] = type { [2 x i32]*, i32*, [2 x [[S_DOUBLE_TY]]]*, [[S_DOUBLE_TY]]*, i{{[0-9]+}}* }
+// CHECK-DAG: [[KMP_TASK_MAIN_TY:%.+]] = type { [[KMP_TASK_T_TY]], [[PRIVATES_MAIN_TY]] }
+// CHECK-DAG: [[S_INT_TY:%.+]] = type { i32 }
+// CHECK-DAG: [[CAP_TMAIN_TY:%.+]] = type { [2 x i32]*, i32*, [2 x [[S_INT_TY]]]*, [[S_INT_TY]]* }
+// CHECK-DAG: [[PRIVATES_TMAIN_TY:%.+]] = type { i32, [2 x i32], [2 x [[S_INT_TY]]], [[S_INT_TY]], [104 x i8] }
+// CHECK-DAG: [[KMP_TASK_TMAIN_TY:%.+]] = type { [[KMP_TASK_T_TY]], [{{[0-9]+}} x i8], [[PRIVATES_TMAIN_TY]] }
+template <typename T>
+T tmain() {
+  S<T> ttt;
+  S<T> test;
+  T t_var __attribute__((aligned(128))) = T();
+  T vec[] = {1, 2};
+  S<T> s_arr[] = {1, 2};
+  S<T> var(3);
+#pragma omp taskloop simd lastprivate(t_var, vec, s_arr, s_arr, var, var)
+  for (int i = 0; i < 10; ++i) {
+    vec[0] = t_var;
+    s_arr[0] = var;
+  }
+  return T();
+}
+
+int main() {
+  static int sivar;
+#ifdef LAMBDA
+  // LAMBDA: [[G:@.+]] = global double
+  // LAMBDA: [[SIVAR:@.+]] = internal global i{{[0-9]+}} 0,
+  // LAMBDA-LABEL: @main
+  // LAMBDA: call{{( x86_thiscallcc)?}} void [[OUTER_LAMBDA:@.+]](
+  [&]() {
+  // LAMBDA: define{{.*}} internal{{.*}} void [[OUTER_LAMBDA]](
+  // LAMBDA: [[RES:%.+]] = call i8* @__kmpc_omp_task_alloc(%{{[^ ]+}} @{{[^,]+}}, i32 %{{[^,]+}}, i32 1, i64 80, i64 16, i32 (i32, i8*)* bitcast (i32 (i32, %{{[^*]+}}*)* [[TASK_ENTRY:@[^ ]+]] to i32 (i32, i8*)*))
+// LAMBDA: [[PRIVATES:%.+]] = getelementptr inbounds %{{.+}}, %{{.+}}* %{{.+}}, i{{.+}} 0, i{{.+}} 1
+// LAMBDA: [[G_PRIVATE_ADDR:%.+]] = getelementptr inbounds %{{.+}}, %{{.+}}* [[PRIVATES]], i{{.+}} 0, i{{.+}} 0
+
+// LAMBDA: call void @__kmpc_taskloop(%{{.+}}* @{{.+}}, i32 %{{.+}}, i8* [[RES]], i32 1, i64* %{{.+}}, i64* %{{.+}}, i64 %{{.+}}, i32 0, i32 0, i64 0, i8* bitcast (void ([[KMP_TASK_MAIN_TY:%[^*]+]]*, [[KMP_TASK_MAIN_TY]]*, i32)* [[MAIN_DUP:@.+]] to i8*))
+// LAMBDA: ret
+#pragma omp taskloop simd lastprivate(g, sivar)
+  for (int i = 0; i < 10; ++i) {
+    // LAMBDA: define {{.+}} void [[INNER_LAMBDA:@.+]](%{{.+}}* [[ARG_PTR:%.+]])
+    // LAMBDA: store %{{.+}}* [[ARG_PTR]], %{{.+}}** [[ARG_PTR_REF:%.+]],
+    // LAMBDA: [[ARG_PTR:%.+]] = load %{{.+}}*, %{{.+}}** [[ARG_PTR_REF]]
+    // LAMBDA: [[G_PTR_REF:%.+]] = getelementptr inbounds %{{.+}}, %{{.+}}* [[ARG_PTR]], i{{[0-9]+}} 0, i{{[0-9]+}} 0
+    // LAMBDA: [[G_REF:%.+]] = load double*, double** [[G_PTR_REF]]
+    // LAMBDA: store double 2.0{{.+}}, double* [[G_REF]]
+
+    // LAMBDA: store double* %{{.+}}, double** %{{.+}},
+    // LAMBDA: define internal i32 [[TASK_ENTRY]](i32, %{{.+}}* noalias)
+    g = 1;
+    sivar = 11;
+    // LAMBDA: store double 1.0{{.+}}, double* %{{.+}},
+    // LAMBDA: store i{{[0-9]+}} 11, i{{[0-9]+}}* %{{.+}},
+    // LAMBDA: call void [[INNER_LAMBDA]](%
+    // LAMBDA: icmp ne i32 %{{.+}}, 0
+    // LAMBDA: br i1
+    // LAMBDA: load double, double* %
+    // LAMBDA: store volatile double %
+    // LAMBDA: load i32, i32* %
+    // LAMBDA: store i32 %
+    // LAMBDA: ret
+    [&]() {
+      g = 2;
+      sivar = 22;
+    }();
+  }
+  }();
+  return 0;
+#elif defined(BLOCKS)
+  // BLOCKS: [[G:@.+]] = global double
+  // BLOCKS-LABEL: @main
+  // BLOCKS: call void {{%.+}}(i8
+  ^{
+  // BLOCKS: define{{.*}} internal{{.*}} void {{.+}}(i8*
+  // BLOCKS: [[RES:%.+]] = call i8* @__kmpc_omp_task_alloc(%{{[^ ]+}} @{{[^,]+}}, i32 %{{[^,]+}}, i32 1, i64 80, i64 16, i32 (i32, i8*)* bitcast (i32 (i32, %{{[^*]+}}*)* [[TASK_ENTRY:@[^ ]+]] to i32 (i32, i8*)*))
+  // BLOCKS: [[PRIVATES:%.+]] = getelementptr inbounds %{{.+}}, %{{.+}}* %{{.+}}, i{{.+}} 0, i{{.+}} 1
+  // BLOCKS: [[G_PRIVATE_ADDR:%.+]] = getelementptr inbounds %{{.+}}, %{{.+}}* [[PRIVATES]], i{{.+}} 0, i{{.+}} 0
+
+  // BLOCKS: [[SIVAR_PRIVATE_ADDR:%.+]] = getelementptr inbounds %{{.+}}, %{{.+}}* [[PRIVATES]], i{{.+}} 0, i{{.+}} 1
+  // BLOCKS: call void @__kmpc_taskloop(%{{.+}}* @{{.+}}, i32 %{{.+}}, i8* [[RES]], i32 1, i64* %{{.+}}, i64* %{{.+}}, i64 %{{.+}}, i32 0, i32 0, i64 0, i8* bitcast (void ([[KMP_TASK_MAIN_TY:%[^*]+]]*, [[KMP_TASK_MAIN_TY]]*, i32)* [[MAIN_DUP:@.+]] to i8*))
+  // BLOCKS: ret
+#pragma omp taskloop simd lastprivate(g, sivar)
+  for (int i = 0; i < 10; ++i) {
+    // BLOCKS: define {{.+}} void {{@.+}}(i8*
+    // BLOCKS-NOT: [[G]]{{[[^:word:]]}}
+    // BLOCKS: store double 2.0{{.+}}, double*
+    // BLOCKS-NOT: [[G]]{{[[^:word:]]}}
+    // BLOCKS-NOT: [[ISVAR]]{{[[^:word:]]}}
+    // BLOCKS: store i{{[0-9]+}} 22, i{{[0-9]+}}*
+    // BLOCKS-NOT: [[SIVAR]]{{[[^:word:]]}}
+    // BLOCKS: ret
+
+    // BLOCKS: store double* %{{.+}}, double** %{{.+}},
+    // BLOCKS: store i{{[0-9]+}}* %{{.+}}, i{{[0-9]+}}** %{{.+}},
+    // BLOCKS: define internal i32 [[TASK_ENTRY]](i32, %{{.+}}* noalias)
+    g = 1;
+    sivar = 11;
+    // BLOCKS: store double 1.0{{.+}}, double* %{{.+}},
+    // BLOCKS-NOT: [[G]]{{[[^:word:]]}}
+    // BLOCKS: store i{{[0-9]+}} 11, i{{[0-9]+}}* %{{.+}},
+    // BLOCKS-NOT: [[SIVAR]]{{[[^:word:]]}}
+    // BLOCKS: call void {{%.+}}(i8
+    // BLOCKS: icmp ne i32 %{{.+}}, 0
+    // BLOCKS: br i1
+    // BLOCKS: load double, double* %
+    // BLOCKS: store volatile double %
+    // BLOCKS: load i32, i32* %
+    // BLOCKS: store i32 %
+    ^{
+      g = 2;
+      sivar = 22;
+    }();
+  }
+  }();
+  return 0;
+#else
+  S<double> ttt;
+  S<double> test;
+  int t_var = 0;
+  int vec[] = {1, 2};
+  S<double> s_arr[] = {1, 2};
+  S<double> var(3);
+#pragma omp taskloop simd lastprivate(var, t_var, s_arr, vec, s_arr, var, sivar)
+  for (int i = 0; i < 10; ++i) {
+    vec[0] = t_var;
+    s_arr[0] = var;
+    sivar = 33;
+  }
+  return tmain<int>();
+#endif
+}
+
+// CHECK: [[SIVAR:.+]] = internal global i{{[0-9]+}} 0,
+// CHECK: define i{{[0-9]+}} @main()
+// CHECK: alloca [[S_DOUBLE_TY]],
+// CHECK: [[TEST:%.+]] = alloca [[S_DOUBLE_TY]],
+// CHECK: [[T_VAR_ADDR:%.+]] = alloca i32,
+// CHECK: [[VEC_ADDR:%.+]] = alloca [2 x i32],
+// CHECK: [[S_ARR_ADDR:%.+]] = alloca [2 x [[S_DOUBLE_TY]]],
+// CHECK: [[VAR_ADDR:%.+]] = alloca [[S_DOUBLE_TY]],
+// CHECK: [[GTID:%.+]] = call i32 @__kmpc_global_thread_num([[LOC:%.+]])
+
+// CHECK: call {{.*}} [[S_DOUBLE_TY_CONSTR:@.+]]([[S_DOUBLE_TY]]* [[TEST]])
+
+// Store original variables in capture struct.
+// CHECK: [[VEC_REF:%.+]] = getelementptr inbounds [[CAP_MAIN_TY]], [[CAP_MAIN_TY]]* %{{.+}}, i{{[0-9]+}} 0, i{{[0-9]+}} 0
+// CHECK: store [2 x i32]* [[VEC_ADDR]], [2 x i32]** [[VEC_REF]],
+// CHECK: [[T_VAR_REF:%.+]] = getelementptr inbounds [[CAP_MAIN_TY]], [[CAP_MAIN_TY]]* %{{.+}}, i{{[0-9]+}} 0, i{{[0-9]+}} 1
+// CHECK: store i32* [[T_VAR_ADDR]], i32** [[T_VAR_REF]],
+// CHECK: [[S_ARR_REF:%.+]] = getelementptr inbounds [[CAP_MAIN_TY]], [[CAP_MAIN_TY]]* %{{.+}}, i{{[0-9]+}} 0, i{{[0-9]+}} 2
+// CHECK: store [2 x [[S_DOUBLE_TY]]]* [[S_ARR_ADDR]], [2 x [[S_DOUBLE_TY]]]** [[S_ARR_REF]],
+// CHECK: [[VAR_REF:%.+]] = getelementptr inbounds [[CAP_MAIN_TY]], [[CAP_MAIN_TY]]* %{{.+}}, i{{[0-9]+}} 0, i{{[0-9]+}} 3
+// CHECK: store [[S_DOUBLE_TY]]* [[VAR_ADDR]], [[S_DOUBLE_TY]]** [[VAR_REF]],
+// CHECK: [[SIVAR_REF:%.+]] = getelementptr inbounds [[CAP_MAIN_TY]], [[CAP_MAIN_TY]]* %{{.+}}, i{{[0-9]+}} 0, i{{[0-9]+}} 4
+// CHECK: store i{{[0-9]+}}* [[SIVAR]], i{{[0-9]+}}** [[SIVAR_REF]],
+
+// Allocate task.
+// Returns struct kmp_task_t {
+//         [[KMP_TASK_T]] task_data;
+//         [[KMP_TASK_MAIN_TY]] privates;
+//       };
+// CHECK: [[RES:%.+]] = call i8* @__kmpc_omp_task_alloc([[LOC]], i32 [[GTID]], i32 1, i64 104, i64 40, i32 (i32, i8*)* bitcast (i32 (i32, [[KMP_TASK_MAIN_TY]]*)* [[TASK_ENTRY:@[^ ]+]] to i32 (i32, i8*)*))
+// CHECK: [[RES_KMP_TASK:%.+]] = bitcast i8* [[RES]] to [[KMP_TASK_MAIN_TY]]*
+
+// Fill kmp_task_t->shareds by copying from original capture argument.
+// CHECK: [[TASK:%.+]] = getelementptr inbounds [[KMP_TASK_MAIN_TY]], [[KMP_TASK_MAIN_TY]]* [[RES_KMP_TASK]], i{{[0-9]+}} 0, i{{[0-9]+}} 0
+// CHECK: [[SHAREDS_REF_ADDR:%.+]] = getelementptr inbounds [[KMP_TASK_T_TY]], [[KMP_TASK_T_TY]]* [[TASK]], i{{[0-9]+}} 0, i{{[0-9]+}} 0
+// CHECK: [[SHAREDS_REF:%.+]] = load i8*, i8** [[SHAREDS_REF_ADDR]],
+// CHECK: [[CAPTURES_ADDR:%.+]] = bitcast [[CAP_MAIN_TY]]* %{{.+}} to i8*
+// CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* [[SHAREDS_REF]], i8* [[CAPTURES_ADDR]], i64 40, i32 8, i1 false)
+
+// Initialize kmp_task_t->privates with default values (no init for simple types, default constructors for classes).
+// Also copy address of private copy to the corresponding shareds reference.
+// CHECK: [[PRIVATES:%.+]] = getelementptr inbounds [[KMP_TASK_MAIN_TY]], [[KMP_TASK_MAIN_TY]]* [[RES_KMP_TASK]], i{{[0-9]+}} 0, i{{[0-9]+}} 1
+
+// Constructors for s_arr and var.
+// s_arr;
+// CHECK: [[PRIVATE_S_ARR_REF:%.+]] = getelementptr inbounds [[PRIVATES_MAIN_TY]], [[PRIVATES_MAIN_TY]]* [[PRIVATES]], i{{[0-9]+}} 0, i{{[0-9]+}} 0
+// CHECK: call {{.*}} [[S_DOUBLE_TY_CONSTR]]([[S_DOUBLE_TY]]* [[S_ARR_CUR:%[^,]+]])
+// CHECK: getelementptr inbounds [[S_DOUBLE_TY]], [[S_DOUBLE_TY]]* [[S_ARR_CUR]], i{{.+}} 1
+// CHECK: icmp eq
+// CHECK: br i1
+
+// var;
+// CHECK: [[PRIVATE_VAR_REF:%.+]] = getelementptr inbounds [[PRIVATES_MAIN_TY]], [[PRIVATES_MAIN_TY]]* [[PRIVATES]], i{{.+}} 0, i{{.+}} 1
+// CHECK: call {{.*}} [[S_DOUBLE_TY_CONSTR]]([[S_DOUBLE_TY]]* [[PRIVATE_VAR_REF]])
+
+// t_var;
+// CHECK: [[PRIVATE_T_VAR_REF:%.+]] = getelementptr inbounds [[PRIVATES_MAIN_TY]], [[PRIVATES_MAIN_TY]]* [[PRIVATES]], i{{.+}} 0, i{{.+}} 2
+// vec;
+// CHECK: [[PRIVATE_VEC_REF:%.+]] = getelementptr inbounds [[PRIVATES_MAIN_TY]], [[PRIVATES_MAIN_TY]]* [[PRIVATES]], i{{.+}} 0, i{{.+}} 3
+// sivar;
+// CHECK: [[PRIVATE_SIVAR_REF:%.+]] = getelementptr inbounds [[PRIVATES_MAIN_TY]], [[PRIVATES_MAIN_TY]]* [[PRIVATES]], i{{.+}} 0, i{{.+}} 4
+
+// Provide pointer to destructor function, which will destroy private variables at the end of the task.
+// CHECK: [[DESTRUCTORS_REF:%.+]] = getelementptr inbounds [[KMP_TASK_T_TY]], [[KMP_TASK_T_TY]]* [[TASK]], i{{.+}} 0, i{{.+}} 3
+// CHECK: store i32 (i32, i8*)* bitcast (i32 (i32, [[KMP_TASK_MAIN_TY]]*)* [[DESTRUCTORS:@.+]] to i32 (i32, i8*)*), i32 (i32, i8*)** [[DESTRUCTORS_REF]],
+
+// Start task.
+// CHECK: call void @__kmpc_taskloop([[LOC]], i32 [[GTID]], i8* [[RES]], i32 1, i64* %{{.+}}, i64* %{{.+}}, i64 %{{.+}}, i32 0, i32 0, i64 0, i8* bitcast (void ([[KMP_TASK_MAIN_TY]]*, [[KMP_TASK_MAIN_TY]]*, i32)* [[MAIN_DUP:@.+]] to i8*))
+
+// CHECK: = call i{{.+}} [[TMAIN_INT:@.+]]()
+
+// No destructors must be called for private copies of s_arr and var.
+// CHECK-NOT: getelementptr inbounds [[PRIVATES_MAIN_TY]], [[PRIVATES_MAIN_TY]]* [[PRIVATES]], i{{.+}} 0, i{{.+}} 2
+// CHECK-NOT: getelementptr inbounds [[PRIVATES_MAIN_TY]], [[PRIVATES_MAIN_TY]]* [[PRIVATES]], i{{.+}} 0, i{{.+}} 3
+// CHECK: call void [[S_DOUBLE_TY_DESTR:@.+]]([[S_DOUBLE_TY]]*
+// CHECK-NOT: getelementptr inbounds [[PRIVATES_MAIN_TY]], [[PRIVATES_MAIN_TY]]* [[PRIVATES]], i{{.+}} 0, i{{.+}} 2
+// CHECK-NOT: getelementptr inbounds [[PRIVATES_MAIN_TY]], [[PRIVATES_MAIN_TY]]* [[PRIVATES]], i{{.+}} 0, i{{.+}} 3
+// CHECK: ret
+//
+
+// CHECK: define internal void [[PRIVATES_MAP_FN:@.+]]([[PRIVATES_MAIN_TY]]* noalias, [[S_DOUBLE_TY]]** noalias, i32** noalias, [2 x [[S_DOUBLE_TY]]]** noalias, [2 x i32]** noalias, i32** noalias)
+// CHECK: [[PRIVATES:%.+]] = load [[PRIVATES_MAIN_TY]]*, [[PRIVATES_MAIN_TY]]**
+// CHECK: [[PRIV_S_VAR:%.+]] = getelementptr inbounds [[PRIVATES_MAIN_TY]], [[PRIVATES_MAIN_TY]]* [[PRIVATES]], i32 0, i32 0
+// CHECK: [[ARG3:%.+]] = load [2 x [[S_DOUBLE_TY]]]**, [2 x [[S_DOUBLE_TY]]]*** %{{.+}},
+// CHECK: store [2 x [[S_DOUBLE_TY]]]* [[PRIV_S_VAR]], [2 x [[S_DOUBLE_TY]]]** [[ARG3]],
+// CHECK: [[PRIV_VAR:%.+]] = getelementptr inbounds [[PRIVATES_MAIN_TY]], [[PRIVATES_MAIN_TY]]* [[PRIVATES]], i32 0, i32 1
+// CHECK: [[ARG1:%.+]] = load [[S_DOUBLE_TY]]**, [[S_DOUBLE_TY]]*** {{.+}},
+// CHECK: store [[S_DOUBLE_TY]]* [[PRIV_VAR]], [[S_DOUBLE_TY]]** [[ARG1]],
+// CHECK: [[PRIV_T_VAR:%.+]] = getelementptr inbounds [[PRIVATES_MAIN_TY]], [[PRIVATES_MAIN_TY]]* [[PRIVATES]], i32 0, i32 2
+// CHECK: [[ARG2:%.+]] = load i32**, i32*** %{{.+}},
+// CHECK: store i32* [[PRIV_T_VAR]], i32** [[ARG2]],
+// CHECK: [[PRIV_VEC:%.+]] = getelementptr inbounds [[PRIVATES_MAIN_TY]], [[PRIVATES_MAIN_TY]]* [[PRIVATES]], i32 0, i32 3
+// CHECK: [[ARG4:%.+]] = load [2 x i32]**, [2 x i32]*** %{{.+}},
+// CHECK: store [2 x i32]* [[PRIV_VEC]], [2 x i32]** [[ARG4]],
+// CHECK: [[PRIV_SIVAR:%.+]] = getelementptr inbounds [[PRIVATES_MAIN_TY]], [[PRIVATES_MAIN_TY]]* [[PRIVATES]], i32 0, i32 4
+// CHECK: [[ARG5:%.+]] = load i{{[0-9]+}}**, i{{[0-9]+}}*** %{{.+}},
+// CHECK: store i{{[0-9]+}}* [[PRIV_SIVAR]], i{{[0-9]+}}** [[ARG5]],
+// CHECK: ret void
+
+// CHECK: define internal i32 [[TASK_ENTRY]](i32, [[KMP_TASK_MAIN_TY]]* noalias)
+
+// CHECK: [[PRIV_VAR_ADDR:%.+]] = alloca [[S_DOUBLE_TY]]*,
+// CHECK: [[PRIV_T_VAR_ADDR:%.+]] = alloca i32*,
+// CHECK: [[PRIV_S_ARR_ADDR:%.+]] = alloca [2 x [[S_DOUBLE_TY]]]*,
+// CHECK: [[PRIV_VEC_ADDR:%.+]] = alloca [2 x i32]*,
+// CHECK: [[PRIV_SIVAR_ADDR:%.+]] = alloca i32*,
+// CHECK: store void (i8*, ...)* bitcast (void ([[PRIVATES_MAIN_TY]]*, [[S_DOUBLE_TY]]**, i32**, [2 x [[S_DOUBLE_TY]]]**, [2 x i32]**, i32**)* [[PRIVATES_MAP_FN]] to void (i8*, ...)*), void (i8*, ...)** [[MAP_FN_ADDR:%.+]],
+// CHECK: [[MAP_FN:%.+]] = load void (i8*, ...)*, void (i8*, ...)** [[MAP_FN_ADDR]],
+
+// CHECK: call void (i8*, ...) [[MAP_FN]](i8* %{{.+}}, [[S_DOUBLE_TY]]** [[PRIV_VAR_ADDR]], i32** [[PRIV_T_VAR_ADDR]], [2 x [[S_DOUBLE_TY]]]** [[PRIV_S_ARR_ADDR]], [2 x i32]** [[PRIV_VEC_ADDR]], i32** [[PRIV_SIVAR_ADDR]])
+
+// CHECK: [[PRIV_VAR:%.+]] = load [[S_DOUBLE_TY]]*, [[S_DOUBLE_TY]]** [[PRIV_VAR_ADDR]],
+// CHECK: [[PRIV_T_VAR:%.+]] = load i32*, i32** [[PRIV_T_VAR_ADDR]],
+// CHECK: [[PRIV_S_ARR:%.+]] = load [2 x [[S_DOUBLE_TY]]]*, [2 x [[S_DOUBLE_TY]]]** [[PRIV_S_ARR_ADDR]],
+// CHECK: [[PRIV_VEC:%.+]] = load [2 x i32]*, [2 x i32]** [[PRIV_VEC_ADDR]],
+// CHECK: [[PRIV_SIVAR:%.+]] = load i32*, i32** [[PRIV_SIVAR_ADDR]],
+
+// Privates actually are used.
+// CHECK-DAG: [[PRIV_VAR]]
+// CHECK-DAG: [[PRIV_T_VAR]]
+// CHECK-DAG: [[PRIV_S_ARR]]
+// CHECK-DAG: [[PRIV_VEC]]
+// CHECK-DAG: [[PRIV_SIVAR]]
+
+// CHECK:     icmp ne i32 %{{.+}}, 0
+// CHECK-NEXT: br i1
+// CHECK: bitcast [[S_DOUBLE_TY]]* %{{.+}} to i8*
+// CHECK: bitcast [[S_DOUBLE_TY]]* %{{.+}} to i8*
+// CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* %
+// CHECK: load i32, i32* %
+// CHECK: store i32 %{{.+}}, i32* %
+// CHECK: getelementptr inbounds [2 x [[S_DOUBLE_TY]]], [2 x [[S_DOUBLE_TY]]]* %
+// CHECK: phi [[S_DOUBLE_TY]]*
+// CHECK: phi [[S_DOUBLE_TY]]*
+// CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* %
+// CHECK: icmp eq [[S_DOUBLE_TY]]* %
+// CHECK-NEXT: br i1
+// CHECK: bitcast [2 x i32]* %{{.+}} to i8*
+// CHECK: bitcast [2 x i32]* %{{.+}} to i8*
+// CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* %
+// CHECK: load i32, i32* %
+// CHECK: store i32 %{{.+}}, i32* %
+// CHECK: br label
+// CHECK: ret
+
+// CHECK: define internal void [[MAIN_DUP]]([[KMP_TASK_MAIN_TY]]*, [[KMP_TASK_MAIN_TY]]*, i32)
+// CHECK: getelementptr inbounds [[KMP_TASK_MAIN_TY]], [[KMP_TASK_MAIN_TY]]* %{{.+}}, i32 0, i32 0
+// CHECK: getelementptr inbounds [[KMP_TASK_T_TY]], [[KMP_TASK_T_TY]]* %{{.+}}, i32 0, i32 7
+// CHECK: load i32, i32* %
+// CHECK: store i32 %{{.+}}, i32* %
+// CHECK: getelementptr inbounds [[KMP_TASK_MAIN_TY]], [[KMP_TASK_MAIN_TY]]* %{{.+}}, i32 0, i32 1
+// CHECK: getelementptr inbounds [[PRIVATES_MAIN_TY]], [[PRIVATES_MAIN_TY]]* %{{.+}}, i32 0, i32 0
+// CHECK: getelementptr inbounds [2 x [[S_DOUBLE_TY]]], [2 x [[S_DOUBLE_TY]]]* %{{.+}}, i32 0, i32 0
+// CHECK: getelementptr inbounds [[S_DOUBLE_TY]], [[S_DOUBLE_TY]]* %{{.+}}, i64 2
+// CHECK: br label %
+
+// CHECK: phi [[S_DOUBLE_TY]]*
+// CHECK: call {{.*}} [[S_DOUBLE_TY_CONSTR]]([[S_DOUBLE_TY]]*
+// CHECK: getelementptr inbounds [[S_DOUBLE_TY]], [[S_DOUBLE_TY]]* %{{.+}}, i64 1
+// CHECK: icmp eq [[S_DOUBLE_TY]]* %
+// CHECK: br i1 %
+
+// CHECK: getelementptr inbounds [[PRIVATES_MAIN_TY]], [[PRIVATES_MAIN_TY]]* %{{.+}}, i32 0, i32 1
+// CHECK: call {{.*}} [[S_DOUBLE_TY_CONSTR]]([[S_DOUBLE_TY]]*
+// CHECK: ret void
+
+// CHECK: define internal i32 [[DESTRUCTORS]](i32, [[KMP_TASK_MAIN_TY]]* noalias)
+// CHECK: [[PRIVATES:%.+]] = getelementptr inbounds [[KMP_TASK_MAIN_TY]], [[KMP_TASK_MAIN_TY]]* [[RES_KMP_TASK:%.+]], i{{[0-9]+}} 0, i{{[0-9]+}} 1
+// CHECK: [[PRIVATE_S_ARR_REF:%.+]] = getelementptr inbounds [[PRIVATES_MAIN_TY]], [[PRIVATES_MAIN_TY]]* [[PRIVATES]], i{{.+}} 0, i{{.+}} 0
+// CHECK: [[PRIVATE_VAR_REF:%.+]] = getelementptr inbounds [[PRIVATES_MAIN_TY]], [[PRIVATES_MAIN_TY]]* [[PRIVATES]], i{{.+}} 0, i{{.+}} 1
+// CHECK: call {{.*}} [[S_DOUBLE_TY_DESTR]]([[S_DOUBLE_TY]]* [[PRIVATE_VAR_REF]])
+// CHECK: getelementptr inbounds [2 x [[S_DOUBLE_TY]]], [2 x [[S_DOUBLE_TY]]]* [[PRIVATE_S_ARR_REF]], i{{.+}} 0, i{{.+}} 0
+// CHECK: getelementptr inbounds [[S_DOUBLE_TY]], [[S_DOUBLE_TY]]* %{{.+}}, i{{.+}} 2
+// CHECK: [[PRIVATE_S_ARR_ELEM_REF:%.+]] = getelementptr inbounds [[S_DOUBLE_TY]], [[S_DOUBLE_TY]]* %{{.+}}, i{{.+}} -1
+// CHECK: call {{.*}} [[S_DOUBLE_TY_DESTR]]([[S_DOUBLE_TY]]* [[PRIVATE_S_ARR_ELEM_REF]])
+// CHECK: icmp eq
+// CHECK: br i1
+// CHECK: ret i32
+
+// CHECK: define {{.*}} i{{[0-9]+}} [[TMAIN_INT]]()
+// CHECK: alloca [[S_INT_TY]],
+// CHECK: [[TEST:%.+]] = alloca [[S_INT_TY]],
+// CHECK: [[T_VAR_ADDR:%.+]] = alloca i32, align 128
+// CHECK: [[VEC_ADDR:%.+]] = alloca [2 x i32],
+// CHECK: [[S_ARR_ADDR:%.+]] = alloca [2 x [[S_INT_TY]]],
+// CHECK: [[VAR_ADDR:%.+]] = alloca [[S_INT_TY]],
+// CHECK: [[GTID:%.+]] = call i32 @__kmpc_global_thread_num([[LOC:%.+]])
+
+// CHECK: call {{.*}} [[S_INT_TY_CONSTR:@.+]]([[S_INT_TY]]* [[TEST]])
+
+// Store original variables in capture struct.
+// CHECK: [[VEC_REF:%.+]] = getelementptr inbounds [[CAP_TMAIN_TY]], [[CAP_TMAIN_TY]]* %{{.+}}, i{{[0-9]+}} 0, i{{[0-9]+}} 0
+// CHECK: store [2 x i32]* [[VEC_ADDR]], [2 x i32]** [[VEC_REF]],
+// CHECK: [[T_VAR_REF:%.+]] = getelementptr inbounds [[CAP_TMAIN_TY]], [[CAP_TMAIN_TY]]* %{{.+}}, i{{[0-9]+}} 0, i{{[0-9]+}} 1
+// CHECK: store i32* [[T_VAR_ADDR]], i32** [[T_VAR_REF]],
+// CHECK: [[S_ARR_REF:%.+]] = getelementptr inbounds [[CAP_TMAIN_TY]], [[CAP_TMAIN_TY]]* %{{.+}}, i{{[0-9]+}} 0, i{{[0-9]+}} 2
+// CHECK: store [2 x [[S_INT_TY]]]* [[S_ARR_ADDR]], [2 x [[S_INT_TY]]]** [[S_ARR_REF]],
+// CHECK: [[VAR_REF:%.+]] = getelementptr inbounds [[CAP_TMAIN_TY]], [[CAP_TMAIN_TY]]* %{{.+}}, i{{[0-9]+}} 0, i{{[0-9]+}} 3
+// CHECK: store [[S_INT_TY]]* [[VAR_ADDR]], [[S_INT_TY]]** [[VAR_REF]],
+
+// Allocate task.
+// Returns struct kmp_task_t {
+//         [[KMP_TASK_T_TY]] task_data;
+//         [[KMP_TASK_TMAIN_TY]] privates;
+//       };
+// CHECK: [[RES:%.+]] = call i8* @__kmpc_omp_task_alloc([[LOC]], i32 [[GTID]], i32 1, i64 256, i64 32, i32 (i32, i8*)* bitcast (i32 (i32, [[KMP_TASK_TMAIN_TY]]*)* [[TASK_ENTRY:@[^ ]+]] to i32 (i32, i8*)*))
+// CHECK: [[RES_KMP_TASK:%.+]] = bitcast i8* [[RES]] to [[KMP_TASK_TMAIN_TY]]*
+
+// Fill kmp_task_t->shareds by copying from original capture argument.
+// CHECK: [[TASK:%.+]] = getelementptr inbounds [[KMP_TASK_TMAIN_TY]], [[KMP_TASK_TMAIN_TY]]* [[RES_KMP_TASK]], i{{[0-9]+}} 0, i{{[0-9]+}} 0
+// CHECK: [[SHAREDS_REF_ADDR:%.+]] = getelementptr inbounds [[KMP_TASK_T_TY]], [[KMP_TASK_T_TY]]* [[TASK]], i{{[0-9]+}} 0, i{{[0-9]+}} 0
+// CHECK: [[SHAREDS_REF:%.+]] = load i8*, i8** [[SHAREDS_REF_ADDR]],
+// CHECK: [[CAPTURES_ADDR:%.+]] = bitcast [[CAP_TMAIN_TY]]* %{{.+}} to i8*
+// CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* [[SHAREDS_REF]], i8* [[CAPTURES_ADDR]], i64 32, i32 8, i1 false)
+
+// Initialize kmp_task_t->privates with default values (no init for simple types, default constructors for classes).
+// CHECK: [[PRIVATES:%.+]] = getelementptr inbounds [[KMP_TASK_TMAIN_TY]], [[KMP_TASK_TMAIN_TY]]* [[RES_KMP_TASK]], i{{[0-9]+}} 0, i{{[0-9]+}} 2
+
+// t_var;
+// CHECK: [[PRIVATE_T_VAR_REF:%.+]] = getelementptr inbounds [[PRIVATES_TMAIN_TY]], [[PRIVATES_TMAIN_TY]]* [[PRIVATES]], i{{.+}} 0, i{{.+}} 0
+
+// vec;
+// CHECK: [[PRIVATE_VEC_REF:%.+]] = getelementptr inbounds [[PRIVATES_TMAIN_TY]], [[PRIVATES_TMAIN_TY]]* [[PRIVATES]], i{{.+}} 0, i{{.+}} 1
+
+// Constructors for s_arr and var.
+// a_arr;
+// CHECK: [[PRIVATE_S_ARR_REF:%.+]] = getelementptr inbounds [[PRIVATES_TMAIN_TY]], [[PRIVATES_TMAIN_TY]]* [[PRIVATES]], i{{[0-9]+}} 0, i{{[0-9]+}} 2
+// CHECK: getelementptr inbounds [2 x [[S_INT_TY]]], [2 x [[S_INT_TY]]]* [[PRIVATE_S_ARR_REF]], i{{.+}} 0, i{{.+}} 0
+// CHECK: getelementptr inbounds [[S_INT_TY]], [[S_INT_TY]]* %{{.+}}, i{{.+}} 2
+// CHECK: call {{.*}} [[S_INT_TY_CONSTR]]([[S_INT_TY]]* [[S_ARR_CUR:%[^,]+]])
+// CHECK: getelementptr inbounds [[S_INT_TY]], [[S_INT_TY]]* [[S_ARR_CUR]], i{{.+}} 1
+// CHECK: icmp eq
+// CHECK: br i1
+
+// var;
+// CHECK: [[PRIVATE_VAR_REF:%.+]] = getelementptr inbounds [[PRIVATES_TMAIN_TY]], [[PRIVATES_TMAIN_TY]]* [[PRIVATES]], i{{.+}} 0, i{{.+}} 3
+// CHECK: call {{.*}} [[S_INT_TY_CONSTR]]([[S_INT_TY]]* [[PRIVATE_VAR_REF]])
+
+// Provide pointer to destructor function, which will destroy private variables at the end of the task.
+// CHECK: [[DESTRUCTORS_REF:%.+]] = getelementptr inbounds [[KMP_TASK_T_TY]], [[KMP_TASK_T_TY]]* [[TASK]], i{{.+}} 0, i{{.+}} 3
+// CHECK: store i32 (i32, i8*)* bitcast (i32 (i32, [[KMP_TASK_TMAIN_TY]]*)* [[DESTRUCTORS:@.+]] to i32 (i32, i8*)*), i32 (i32, i8*)** [[DESTRUCTORS_REF]],
+
+// Start task.
+// CHECK: call void @__kmpc_taskloop([[LOC]], i32 [[GTID]], i8* [[RES]], i32 1, i64* %{{.+}}, i64* %{{.+}}, i64 %{{.+}}, i32 0, i32 0, i64 0, i8* bitcast (void ([[KMP_TASK_TMAIN_TY]]*, [[KMP_TASK_TMAIN_TY]]*, i32)* [[TMAIN_DUP:@.+]] to i8*))
+
+// No destructors must be called for private copies of s_arr and var.
+// CHECK-NOT: getelementptr inbounds [[PRIVATES_TMAIN_TY]], [[PRIVATES_TMAIN_TY]]* [[PRIVATES]], i{{.+}} 0, i{{.+}} 2
+// CHECK-NOT: getelementptr inbounds [[PRIVATES_TMAIN_TY]], [[PRIVATES_TMAIN_TY]]* [[PRIVATES]], i{{.+}} 0, i{{.+}} 3
+// CHECK: call void [[S_INT_TY_DESTR:@.+]]([[S_INT_TY]]*
+// CHECK-NOT: getelementptr inbounds [[PRIVATES_TMAIN_TY]], [[PRIVATES_TMAIN_TY]]* [[PRIVATES]], i{{.+}} 0, i{{.+}} 2
+// CHECK-NOT: getelementptr inbounds [[PRIVATES_TMAIN_TY]], [[PRIVATES_TMAIN_TY]]* [[PRIVATES]], i{{.+}} 0, i{{.+}} 3
+// CHECK: ret
+//
+
+// CHECK: define internal void [[PRIVATES_MAP_FN:@.+]]([[PRIVATES_TMAIN_TY]]* noalias, i32** noalias, [2 x i32]** noalias, [2 x [[S_INT_TY]]]** noalias, [[S_INT_TY]]** noalias)
+// CHECK: [[PRIVATES:%.+]] = load [[PRIVATES_TMAIN_TY]]*, [[PRIVATES_TMAIN_TY]]**
+// CHECK: [[PRIV_T_VAR:%.+]] = getelementptr inbounds [[PRIVATES_TMAIN_TY]], [[PRIVATES_TMAIN_TY]]* [[PRIVATES]], i32 0, i32 0
+// CHECK: [[ARG1:%.+]] = load i32**, i32*** %{{.+}},
+// CHECK: store i32* [[PRIV_T_VAR]], i32** [[ARG1]],
+// CHECK: [[PRIV_VEC:%.+]] = getelementptr inbounds [[PRIVATES_TMAIN_TY]], [[PRIVATES_TMAIN_TY]]* [[PRIVATES]], i32 0, i32 1
+// CHECK: [[ARG2:%.+]] = load [2 x i32]**, [2 x i32]*** %{{.+}},
+// CHECK: store [2 x i32]* [[PRIV_VEC]], [2 x i32]** [[ARG2]],
+// CHECK: [[PRIV_S_VAR:%.+]] = getelementptr inbounds [[PRIVATES_TMAIN_TY]], [[PRIVATES_TMAIN_TY]]* [[PRIVATES]], i32 0, i32 2
+// CHECK: [[ARG3:%.+]] = load [2 x [[S_INT_TY]]]**, [2 x [[S_INT_TY]]]*** %{{.+}},
+// CHECK: store [2 x [[S_INT_TY]]]* [[PRIV_S_VAR]], [2 x [[S_INT_TY]]]** [[ARG3]],
+// CHECK: [[PRIV_VAR:%.+]] = getelementptr inbounds [[PRIVATES_TMAIN_TY]], [[PRIVATES_TMAIN_TY]]* [[PRIVATES]], i32 0, i32 3
+// CHECK: [[ARG4:%.+]] = load [[S_INT_TY]]**, [[S_INT_TY]]*** {{.+}},
+// CHECK: store [[S_INT_TY]]* [[PRIV_VAR]], [[S_INT_TY]]** [[ARG4]],
+// CHECK: ret void
+
+// CHECK: define internal i32 [[TASK_ENTRY]](i32, [[KMP_TASK_TMAIN_TY]]* noalias)
+// CHECK: alloca i32*,
+// CHECK-DAG: [[PRIV_T_VAR_ADDR:%.+]] = alloca i32*,
+// CHECK-DAG: [[PRIV_VEC_ADDR:%.+]] = alloca [2 x i32]*,
+// CHECK-DAG: [[PRIV_S_ARR_ADDR:%.+]] = alloca [2 x [[S_INT_TY]]]*,
+// CHECK-DAG: [[PRIV_VAR_ADDR:%.+]] = alloca [[S_INT_TY]]*,
+// CHECK: store void (i8*, ...)* bitcast (void ([[PRIVATES_TMAIN_TY]]*, i32**, [2 x i32]**, [2 x [[S_INT_TY]]]**, [[S_INT_TY]]**)* [[PRIVATES_MAP_FN]] to void (i8*, ...)*), void (i8*, ...)** [[MAP_FN_ADDR:%.+]],
+// CHECK: [[MAP_FN:%.+]] = load void (i8*, ...)*, void (i8*, ...)** [[MAP_FN_ADDR]],
+// CHECK: call void (i8*, ...) [[MAP_FN]](i8* %{{.+}}, i32** [[PRIV_T_VAR_ADDR]], [2 x i32]** [[PRIV_VEC_ADDR]], [2 x [[S_INT_TY]]]** [[PRIV_S_ARR_ADDR]], [[S_INT_TY]]** [[PRIV_VAR_ADDR]])
+// CHECK: [[PRIV_T_VAR:%.+]] = load i32*, i32** [[PRIV_T_VAR_ADDR]],
+// CHECK: [[PRIV_VEC:%.+]] = load [2 x i32]*, [2 x i32]** [[PRIV_VEC_ADDR]],
+// CHECK: [[PRIV_S_ARR:%.+]] = load [2 x [[S_INT_TY]]]*, [2 x [[S_INT_TY]]]** [[PRIV_S_ARR_ADDR]],
+// CHECK: [[PRIV_VAR:%.+]] = load [[S_INT_TY]]*, [[S_INT_TY]]** [[PRIV_VAR_ADDR]],
+
+// Privates actually are used.
+// CHECK-DAG: [[PRIV_VAR]]
+// CHECK-DAG: [[PRIV_T_VAR]]
+// CHECK-DAG: [[PRIV_S_ARR]]
+// CHECK-DAG: [[PRIV_VEC]]
+
+// CHECK:     icmp ne i32 %{{.+}}, 0
+// CHECK-NEXT: br i1
+// CHECK: load i32, i32* %
+// CHECK: store i32 %{{.+}}, i32* %
+// CHECK: bitcast [2 x i32]* %{{.+}} to i8*
+// CHECK: bitcast [2 x i32]* %{{.+}} to i8*
+// CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* %
+// CHECK: getelementptr inbounds [2 x [[S_INT_TY]]], [2 x [[S_INT_TY]]]* %
+// CHECK: phi [[S_INT_TY]]*
+// CHECK: phi [[S_INT_TY]]*
+// CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* %
+// CHECK: icmp eq [[S_INT_TY]]* %
+// CHECK-NEXT: br i1
+// CHECK: bitcast [[S_INT_TY]]* %{{.+}} to i8*
+// CHECK: bitcast [[S_INT_TY]]* %{{.+}} to i8*
+// CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* %
+// CHECK: br label
+// CHECK: ret
+
+// CHECK: define internal void [[TMAIN_DUP]]([[KMP_TASK_TMAIN_TY]]*, [[KMP_TASK_TMAIN_TY]]*, i32)
+// CHECK: getelementptr inbounds [[KMP_TASK_TMAIN_TY]], [[KMP_TASK_TMAIN_TY]]* %{{.+}}, i32 0, i32 0
+// CHECK: getelementptr inbounds [[KMP_TASK_T_TY]], [[KMP_TASK_T_TY]]* %{{.+}}, i32 0, i32 7
+// CHECK: load i32, i32* %
+// CHECK: store i32 %{{.+}}, i32* %
+// CHECK: getelementptr inbounds [[KMP_TASK_TMAIN_TY]], [[KMP_TASK_TMAIN_TY]]* %{{.+}}, i32 0, i32 2
+// CHECK: getelementptr inbounds [[PRIVATES_TMAIN_TY]], [[PRIVATES_TMAIN_TY]]* %{{.+}}, i32 0, i32 2
+// CHECK: getelementptr inbounds [2 x [[S_INT_TY]]], [2 x [[S_INT_TY]]]* %{{.+}}, i32 0, i32 0
+// CHECK: getelementptr inbounds [[S_INT_TY]], [[S_INT_TY]]* %{{.+}}, i64 2
+// CHECK: br label %
+
+// CHECK: phi [[S_INT_TY]]*
+// CHECK: call {{.*}} [[S_INT_TY_CONSTR]]([[S_INT_TY]]*
+// CHECK: getelementptr inbounds [[S_INT_TY]], [[S_INT_TY]]* %{{.+}}, i64 1
+// CHECK: icmp eq [[S_INT_TY]]* %
+// CHECK: br i1 %
+
+// CHECK: getelementptr inbounds [[PRIVATES_TMAIN_TY]], [[PRIVATES_TMAIN_TY]]* %{{.+}}, i32 0, i32 3
+// CHECK: call {{.*}} [[S_INT_TY_CONSTR]]([[S_INT_TY]]*
+// CHECK: ret void
+
+// CHECK: define internal i32 [[DESTRUCTORS]](i32, [[KMP_TASK_TMAIN_TY]]* noalias)
+// CHECK: [[PRIVATES:%.+]] = getelementptr inbounds [[KMP_TASK_TMAIN_TY]], [[KMP_TASK_TMAIN_TY]]* [[RES_KMP_TASK:%.+]], i{{[0-9]+}} 0, i{{[0-9]+}} 2
+// CHECK: [[PRIVATE_S_ARR_REF:%.+]] = getelementptr inbounds [[PRIVATES_TMAIN_TY]], [[PRIVATES_TMAIN_TY]]* [[PRIVATES]], i{{.+}} 0, i{{.+}} 2
+// CHECK: [[PRIVATE_VAR_REF:%.+]] = getelementptr inbounds [[PRIVATES_TMAIN_TY]], [[PRIVATES_TMAIN_TY]]* [[PRIVATES]], i{{.+}} 0, i{{.+}} 3
+// CHECK: call void [[S_INT_TY_DESTR]]([[S_INT_TY]]* [[PRIVATE_VAR_REF]])
+// CHECK: getelementptr inbounds [2 x [[S_INT_TY]]], [2 x [[S_INT_TY]]]* [[PRIVATE_S_ARR_REF]], i{{.+}} 0, i{{.+}} 0
+// CHECK: getelementptr inbounds [[S_INT_TY]], [[S_INT_TY]]* %{{.+}}, i{{.+}} 2
+// CHECK: [[PRIVATE_S_ARR_ELEM_REF:%.+]] = getelementptr inbounds [[S_INT_TY]], [[S_INT_TY]]* %{{.+}}, i{{.+}} -1
+// CHECK: call void [[S_INT_TY_DESTR]]([[S_INT_TY]]* [[PRIVATE_S_ARR_ELEM_REF]])
+// CHECK: icmp eq
+// CHECK: br i1
+// CHECK: ret i32
+
+#endif
+#else
+// ARRAY-LABEL: array_func
+struct St {
+  int a, b;
+  St() : a(0), b(0) {}
+  St(const St &) {}
+  ~St() {}
+};
+
+void array_func(int n, float a[n], St s[2]) {
+// ARRAY: call i8* @__kmpc_omp_task_alloc(
+// ARRAY: call void @__kmpc_taskloop(
+// ARRAY: store float** %{{.+}}, float*** %{{.+}},
+// ARRAY: store %struct.St** %{{.+}}, %struct.St*** %{{.+}},
+// ARRAY: icmp ne i32 %{{.+}}, 0
+// ARRAY: store float* %{{.+}}, float** %{{.+}},
+// ARRAY: store %struct.St* %{{.+}}, %struct.St** %{{.+}},
+#pragma omp taskloop simd lastprivate(a, s)
+  for (int i = 0; i < 10; ++i)
+    ;
+}
+#endif
+