[llvm] eb3e81f - [OpenMP][NFCI] Introduce llvm/IR/OpenMPConstants.h

Roman Tereshin via llvm-commits llvm-commits at lists.llvm.org
Tue Dec 17 16:55:23 PST 2019


Hi Johannes,

I think I'm hitting a bit of a problem with this change. We seem to be missing a dependency between llvm-config and the (new?) libraries involved here:

cmake -G Ninja ../llvm -DCMAKE_BUILD_TYPE=RelWithDebInfo -DLLVM_BUILD_TESTS=Off -DLLVM_ENABLE_ASSERTIONS=On -DLLVM_TARGETS_TO_BUILD="X86"
ninja check-llvm-tools-llvm-config  # note, w/o building everything first

fails

    LLVM :: tools/llvm-config/booleans.test
    LLVM :: tools/llvm-config/system-libs.test

with

> ./bin/llvm-config --shared-mode
llvm-config: error: component libraries and shared library

llvm-config: error: missing: <...>t/build/lib/libLLVMFrontendOpenMP.a

I'm not sure how to fix this just yet, perhaps it has something to do with extending the approach introduced in

commit bb6d95fc3a74eab118b622e4c779d0b9edc53f54
Author: Andrew Wilkins <axwalk at gmail.com <mailto:axwalk at gmail.com>>
Date:   Sat Sep 5 01:27:33 2015
    [cmake] rework LLVM_LINK_LLVM_DYLIB option handling

to the Frontend / OpenMP component.

Note, if done

ninja  # first
ninja check-llvm-tools-llvm-config  # and then this

tests pass.

Thanks,
Roman

> On Dec 9, 2019, at 10:10 PM, Johannes Doerfert via llvm-commits <llvm-commits at lists.llvm.org> wrote:
> 
> 
> Author: Johannes Doerfert
> Date: 2019-12-10T00:10:09-06:00
> New Revision: eb3e81f43f019cd90da87169aeff0eaddc4c9ecb
> 
> URL: https://github.com/llvm/llvm-project/commit/eb3e81f43f019cd90da87169aeff0eaddc4c9ecb
> DIFF: https://github.com/llvm/llvm-project/commit/eb3e81f43f019cd90da87169aeff0eaddc4c9ecb.diff
> 
> LOG: [OpenMP][NFCI] Introduce llvm/IR/OpenMPConstants.h
> 
> Summary:
> The new OpenMPConstants.h is a location for all OpenMP related constants
> (and helpers) to live.
> 
> This patch moves the directives there (the enum OpenMPDirectiveKind) and
> rewires Clang to use the new location.
> 
> Initially part of D69785.
> 
> Reviewers: kiranchandramohan, ABataev, RaviNarayanaswamy, gtbercea, grokos, sdmitriev, JonChesterfield, hfinkel, fghanim
> 
> Subscribers: jholewinski, ppenzin, penzn, llvm-commits, cfe-commits, jfb, guansong, bollu, hiraditya, mgorny
> 
> Tags: #clang, #llvm
> 
> Differential Revision: https://reviews.llvm.org/D69853
> 
> Added: 
>    llvm/include/llvm/Frontend/OpenMP/OMPConstants.h
>    llvm/include/llvm/Frontend/OpenMP/OMPKinds.def
>    llvm/lib/Frontend/CMakeLists.txt
>    llvm/lib/Frontend/LLVMBuild.txt
>    llvm/lib/Frontend/OpenMP/CMakeLists.txt
>    llvm/lib/Frontend/OpenMP/LLVMBuild.txt
>    llvm/lib/Frontend/OpenMP/OMPConstants.cpp
> 
> Modified: 
>    clang/include/clang/AST/OpenMPClause.h
>    clang/include/clang/AST/StmtOpenMP.h
>    clang/include/clang/Basic/OpenMPKinds.def
>    clang/include/clang/Basic/OpenMPKinds.h
>    clang/lib/AST/CMakeLists.txt
>    clang/lib/AST/OpenMPClause.cpp
>    clang/lib/AST/StmtOpenMP.cpp
>    clang/lib/Basic/OpenMPKinds.cpp
>    clang/lib/CodeGen/CGOpenMPRuntime.cpp
>    clang/lib/CodeGen/CGOpenMPRuntimeNVPTX.cpp
>    clang/lib/CodeGen/CGStmtOpenMP.cpp
>    clang/lib/CodeGen/CodeGenFunction.h
>    clang/lib/Parse/CMakeLists.txt
>    clang/lib/Parse/ParseOpenMP.cpp
>    clang/lib/Sema/CMakeLists.txt
>    clang/lib/Sema/SemaOpenMP.cpp
>    clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
>    clang/lib/Sema/TreeTransform.h
>    clang/lib/Serialization/ASTWriter.cpp
>    clang/lib/Serialization/ASTWriterStmt.cpp
>    llvm/lib/CMakeLists.txt
>    llvm/lib/LLVMBuild.txt
> 
> Removed: 
> 
> 
> 
> ################################################################################
> diff  --git a/clang/include/clang/AST/OpenMPClause.h b/clang/include/clang/AST/OpenMPClause.h
> index b2a2035dcb3c..72c638bf6460 100644
> --- a/clang/include/clang/AST/OpenMPClause.h
> +++ b/clang/include/clang/AST/OpenMPClause.h
> @@ -111,7 +111,7 @@ class OMPClauseWithPreInit {
>   Stmt *PreInit = nullptr;
> 
>   /// Region that captures the associated stmt.
> -  OpenMPDirectiveKind CaptureRegion = OMPD_unknown;
> +  OpenMPDirectiveKind CaptureRegion = llvm::omp::OMPD_unknown;
> 
> protected:
>   OMPClauseWithPreInit(const OMPClause *This) {
> @@ -119,7 +119,9 @@ class OMPClauseWithPreInit {
>   }
> 
>   /// Set pre-initialization statement for the clause.
> -  void setPreInitStmt(Stmt *S, OpenMPDirectiveKind ThisRegion = OMPD_unknown) {
> +  void
> +  setPreInitStmt(Stmt *S,
> +                 OpenMPDirectiveKind ThisRegion = llvm::omp::OMPD_unknown) {
>     PreInit = S;
>     CaptureRegion = ThisRegion;
>   }
> @@ -432,7 +434,7 @@ class OMPIfClause : public OMPClause, public OMPClauseWithPreInit {
>   SourceLocation ColonLoc;
> 
>   /// Directive name modifier for the clause.
> -  OpenMPDirectiveKind NameModifier = OMPD_unknown;
> +  OpenMPDirectiveKind NameModifier = llvm::omp::OMPD_unknown;
> 
>   /// Name modifier location.
>   SourceLocation NameModifierLoc;
> 
> diff  --git a/clang/include/clang/AST/StmtOpenMP.h b/clang/include/clang/AST/StmtOpenMP.h
> index cc10f9e4c48e..65f0afece224 100644
> --- a/clang/include/clang/AST/StmtOpenMP.h
> +++ b/clang/include/clang/AST/StmtOpenMP.h
> @@ -366,8 +366,9 @@ class OMPParallelDirective : public OMPExecutableDirective {
>   ///
>   OMPParallelDirective(SourceLocation StartLoc, SourceLocation EndLoc,
>                        unsigned NumClauses)
> -      : OMPExecutableDirective(this, OMPParallelDirectiveClass, OMPD_parallel,
> -                               StartLoc, EndLoc, NumClauses, 1),
> +      : OMPExecutableDirective(this, OMPParallelDirectiveClass,
> +                               llvm::omp::OMPD_parallel, StartLoc, EndLoc,
> +                               NumClauses, 1),
>         HasCancel(false) {}
> 
>   /// Build an empty directive.
> @@ -375,9 +376,9 @@ class OMPParallelDirective : public OMPExecutableDirective {
>   /// \param NumClauses Number of clauses.
>   ///
>   explicit OMPParallelDirective(unsigned NumClauses)
> -      : OMPExecutableDirective(this, OMPParallelDirectiveClass, OMPD_parallel,
> -                               SourceLocation(), SourceLocation(), NumClauses,
> -                               1),
> +      : OMPExecutableDirective(this, OMPParallelDirectiveClass,
> +                               llvm::omp::OMPD_parallel, SourceLocation(),
> +                               SourceLocation(), NumClauses, 1),
>         HasCancel(false) {}
> 
>   /// Set cancel state.
> @@ -1201,8 +1202,8 @@ class OMPSimdDirective : public OMPLoopDirective {
>   ///
>   OMPSimdDirective(SourceLocation StartLoc, SourceLocation EndLoc,
>                    unsigned CollapsedNum, unsigned NumClauses)
> -      : OMPLoopDirective(this, OMPSimdDirectiveClass, OMPD_simd, StartLoc,
> -                         EndLoc, CollapsedNum, NumClauses) {}
> +      : OMPLoopDirective(this, OMPSimdDirectiveClass, llvm::omp::OMPD_simd,
> +                         StartLoc, EndLoc, CollapsedNum, NumClauses) {}
> 
>   /// Build an empty directive.
>   ///
> @@ -1210,7 +1211,7 @@ class OMPSimdDirective : public OMPLoopDirective {
>   /// \param NumClauses Number of clauses.
>   ///
>   explicit OMPSimdDirective(unsigned CollapsedNum, unsigned NumClauses)
> -      : OMPLoopDirective(this, OMPSimdDirectiveClass, OMPD_simd,
> +      : OMPLoopDirective(this, OMPSimdDirectiveClass, llvm::omp::OMPD_simd,
>                          SourceLocation(), SourceLocation(), CollapsedNum,
>                          NumClauses) {}
> 
> @@ -1270,8 +1271,8 @@ class OMPForDirective : public OMPLoopDirective {
>   ///
>   OMPForDirective(SourceLocation StartLoc, SourceLocation EndLoc,
>                   unsigned CollapsedNum, unsigned NumClauses)
> -      : OMPLoopDirective(this, OMPForDirectiveClass, OMPD_for, StartLoc, EndLoc,
> -                         CollapsedNum, NumClauses),
> +      : OMPLoopDirective(this, OMPForDirectiveClass, llvm::omp::OMPD_for,
> +                         StartLoc, EndLoc, CollapsedNum, NumClauses),
>         HasCancel(false) {}
> 
>   /// Build an empty directive.
> @@ -1280,8 +1281,9 @@ class OMPForDirective : public OMPLoopDirective {
>   /// \param NumClauses Number of clauses.
>   ///
>   explicit OMPForDirective(unsigned CollapsedNum, unsigned NumClauses)
> -      : OMPLoopDirective(this, OMPForDirectiveClass, OMPD_for, SourceLocation(),
> -                         SourceLocation(), CollapsedNum, NumClauses),
> +      : OMPLoopDirective(this, OMPForDirectiveClass, llvm::omp::OMPD_for,
> +                         SourceLocation(), SourceLocation(), CollapsedNum,
> +                         NumClauses),
>         HasCancel(false) {}
> 
>   /// Set cancel state.
> @@ -1343,8 +1345,9 @@ class OMPForSimdDirective : public OMPLoopDirective {
>   ///
>   OMPForSimdDirective(SourceLocation StartLoc, SourceLocation EndLoc,
>                       unsigned CollapsedNum, unsigned NumClauses)
> -      : OMPLoopDirective(this, OMPForSimdDirectiveClass, OMPD_for_simd,
> -                         StartLoc, EndLoc, CollapsedNum, NumClauses) {}
> +      : OMPLoopDirective(this, OMPForSimdDirectiveClass,
> +                         llvm::omp::OMPD_for_simd, StartLoc, EndLoc,
> +                         CollapsedNum, NumClauses) {}
> 
>   /// Build an empty directive.
>   ///
> @@ -1352,9 +1355,9 @@ class OMPForSimdDirective : public OMPLoopDirective {
>   /// \param NumClauses Number of clauses.
>   ///
>   explicit OMPForSimdDirective(unsigned CollapsedNum, unsigned NumClauses)
> -      : OMPLoopDirective(this, OMPForSimdDirectiveClass, OMPD_for_simd,
> -                         SourceLocation(), SourceLocation(), CollapsedNum,
> -                         NumClauses) {}
> +      : OMPLoopDirective(this, OMPForSimdDirectiveClass,
> +                         llvm::omp::OMPD_for_simd, SourceLocation(),
> +                         SourceLocation(), CollapsedNum, NumClauses) {}
> 
> public:
>   /// Creates directive with a list of \a Clauses.
> @@ -1411,8 +1414,9 @@ class OMPSectionsDirective : public OMPExecutableDirective {
>   ///
>   OMPSectionsDirective(SourceLocation StartLoc, SourceLocation EndLoc,
>                        unsigned NumClauses)
> -      : OMPExecutableDirective(this, OMPSectionsDirectiveClass, OMPD_sections,
> -                               StartLoc, EndLoc, NumClauses, 1),
> +      : OMPExecutableDirective(this, OMPSectionsDirectiveClass,
> +                               llvm::omp::OMPD_sections, StartLoc, EndLoc,
> +                               NumClauses, 1),
>         HasCancel(false) {}
> 
>   /// Build an empty directive.
> @@ -1420,9 +1424,9 @@ class OMPSectionsDirective : public OMPExecutableDirective {
>   /// \param NumClauses Number of clauses.
>   ///
>   explicit OMPSectionsDirective(unsigned NumClauses)
> -      : OMPExecutableDirective(this, OMPSectionsDirectiveClass, OMPD_sections,
> -                               SourceLocation(), SourceLocation(), NumClauses,
> -                               1),
> +      : OMPExecutableDirective(this, OMPSectionsDirectiveClass,
> +                               llvm::omp::OMPD_sections, SourceLocation(),
> +                               SourceLocation(), NumClauses, 1),
>         HasCancel(false) {}
> 
>   /// Set cancel state.
> @@ -1477,15 +1481,16 @@ class OMPSectionDirective : public OMPExecutableDirective {
>   /// \param EndLoc Ending location of the directive.
>   ///
>   OMPSectionDirective(SourceLocation StartLoc, SourceLocation EndLoc)
> -      : OMPExecutableDirective(this, OMPSectionDirectiveClass, OMPD_section,
> -                               StartLoc, EndLoc, 0, 1),
> +      : OMPExecutableDirective(this, OMPSectionDirectiveClass,
> +                               llvm::omp::OMPD_section, StartLoc, EndLoc, 0, 1),
>         HasCancel(false) {}
> 
>   /// Build an empty directive.
>   ///
>   explicit OMPSectionDirective()
> -      : OMPExecutableDirective(this, OMPSectionDirectiveClass, OMPD_section,
> -                               SourceLocation(), SourceLocation(), 0, 1),
> +      : OMPExecutableDirective(this, OMPSectionDirectiveClass,
> +                               llvm::omp::OMPD_section, SourceLocation(),
> +                               SourceLocation(), 0, 1),
>         HasCancel(false) {}
> 
> public:
> @@ -1537,17 +1542,18 @@ class OMPSingleDirective : public OMPExecutableDirective {
>   ///
>   OMPSingleDirective(SourceLocation StartLoc, SourceLocation EndLoc,
>                      unsigned NumClauses)
> -      : OMPExecutableDirective(this, OMPSingleDirectiveClass, OMPD_single,
> -                               StartLoc, EndLoc, NumClauses, 1) {}
> +      : OMPExecutableDirective(this, OMPSingleDirectiveClass,
> +                               llvm::omp::OMPD_single, StartLoc, EndLoc,
> +                               NumClauses, 1) {}
> 
>   /// Build an empty directive.
>   ///
>   /// \param NumClauses Number of clauses.
>   ///
>   explicit OMPSingleDirective(unsigned NumClauses)
> -      : OMPExecutableDirective(this, OMPSingleDirectiveClass, OMPD_single,
> -                               SourceLocation(), SourceLocation(), NumClauses,
> -                               1) {}
> +      : OMPExecutableDirective(this, OMPSingleDirectiveClass,
> +                               llvm::omp::OMPD_single, SourceLocation(),
> +                               SourceLocation(), NumClauses, 1) {}
> 
> public:
>   /// Creates directive with a list of \a Clauses.
> @@ -1590,14 +1596,16 @@ class OMPMasterDirective : public OMPExecutableDirective {
>   /// \param EndLoc Ending location of the directive.
>   ///
>   OMPMasterDirective(SourceLocation StartLoc, SourceLocation EndLoc)
> -      : OMPExecutableDirective(this, OMPMasterDirectiveClass, OMPD_master,
> -                               StartLoc, EndLoc, 0, 1) {}
> +      : OMPExecutableDirective(this, OMPMasterDirectiveClass,
> +                               llvm::omp::OMPD_master, StartLoc, EndLoc, 0, 1) {
> +  }
> 
>   /// Build an empty directive.
>   ///
>   explicit OMPMasterDirective()
> -      : OMPExecutableDirective(this, OMPMasterDirectiveClass, OMPD_master,
> -                               SourceLocation(), SourceLocation(), 0, 1) {}
> +      : OMPExecutableDirective(this, OMPMasterDirectiveClass,
> +                               llvm::omp::OMPD_master, SourceLocation(),
> +                               SourceLocation(), 0, 1) {}
> 
> public:
>   /// Creates directive.
> @@ -1642,8 +1650,9 @@ class OMPCriticalDirective : public OMPExecutableDirective {
>   ///
>   OMPCriticalDirective(const DeclarationNameInfo &Name, SourceLocation StartLoc,
>                        SourceLocation EndLoc, unsigned NumClauses)
> -      : OMPExecutableDirective(this, OMPCriticalDirectiveClass, OMPD_critical,
> -                               StartLoc, EndLoc, NumClauses, 1),
> +      : OMPExecutableDirective(this, OMPCriticalDirectiveClass,
> +                               llvm::omp::OMPD_critical, StartLoc, EndLoc,
> +                               NumClauses, 1),
>         DirName(Name) {}
> 
>   /// Build an empty directive.
> @@ -1651,9 +1660,9 @@ class OMPCriticalDirective : public OMPExecutableDirective {
>   /// \param NumClauses Number of clauses.
>   ///
>   explicit OMPCriticalDirective(unsigned NumClauses)
> -      : OMPExecutableDirective(this, OMPCriticalDirectiveClass, OMPD_critical,
> -                               SourceLocation(), SourceLocation(), NumClauses,
> -                               1),
> +      : OMPExecutableDirective(this, OMPCriticalDirectiveClass,
> +                               llvm::omp::OMPD_critical, SourceLocation(),
> +                               SourceLocation(), NumClauses, 1),
>         DirName() {}
> 
>   /// Set name of the directive.
> @@ -1718,8 +1727,9 @@ class OMPParallelForDirective : public OMPLoopDirective {
>   ///
>   OMPParallelForDirective(SourceLocation StartLoc, SourceLocation EndLoc,
>                           unsigned CollapsedNum, unsigned NumClauses)
> -      : OMPLoopDirective(this, OMPParallelForDirectiveClass, OMPD_parallel_for,
> -                         StartLoc, EndLoc, CollapsedNum, NumClauses),
> +      : OMPLoopDirective(this, OMPParallelForDirectiveClass,
> +                         llvm::omp::OMPD_parallel_for, StartLoc, EndLoc,
> +                         CollapsedNum, NumClauses),
>         HasCancel(false) {}
> 
>   /// Build an empty directive.
> @@ -1728,9 +1738,9 @@ class OMPParallelForDirective : public OMPLoopDirective {
>   /// \param NumClauses Number of clauses.
>   ///
>   explicit OMPParallelForDirective(unsigned CollapsedNum, unsigned NumClauses)
> -      : OMPLoopDirective(this, OMPParallelForDirectiveClass, OMPD_parallel_for,
> -                         SourceLocation(), SourceLocation(), CollapsedNum,
> -                         NumClauses),
> +      : OMPLoopDirective(this, OMPParallelForDirectiveClass,
> +                         llvm::omp::OMPD_parallel_for, SourceLocation(),
> +                         SourceLocation(), CollapsedNum, NumClauses),
>         HasCancel(false) {}
> 
>   /// Set cancel state.
> @@ -1795,8 +1805,8 @@ class OMPParallelForSimdDirective : public OMPLoopDirective {
>   OMPParallelForSimdDirective(SourceLocation StartLoc, SourceLocation EndLoc,
>                               unsigned CollapsedNum, unsigned NumClauses)
>       : OMPLoopDirective(this, OMPParallelForSimdDirectiveClass,
> -                         OMPD_parallel_for_simd, StartLoc, EndLoc, CollapsedNum,
> -                         NumClauses) {}
> +                         llvm::omp::OMPD_parallel_for_simd, StartLoc, EndLoc,
> +                         CollapsedNum, NumClauses) {}
> 
>   /// Build an empty directive.
>   ///
> @@ -1806,7 +1816,7 @@ class OMPParallelForSimdDirective : public OMPLoopDirective {
>   explicit OMPParallelForSimdDirective(unsigned CollapsedNum,
>                                        unsigned NumClauses)
>       : OMPLoopDirective(this, OMPParallelForSimdDirectiveClass,
> -                         OMPD_parallel_for_simd, SourceLocation(),
> +                         llvm::omp::OMPD_parallel_for_simd, SourceLocation(),
>                          SourceLocation(), CollapsedNum, NumClauses) {}
> 
> public:
> @@ -1856,13 +1866,14 @@ class OMPParallelMasterDirective : public OMPExecutableDirective {
>   OMPParallelMasterDirective(SourceLocation StartLoc, SourceLocation EndLoc,
>                              unsigned NumClauses)
>       : OMPExecutableDirective(this, OMPParallelMasterDirectiveClass,
> -                               OMPD_parallel_master, StartLoc, EndLoc,
> -                               NumClauses, 1) {}
> +                               llvm::omp::OMPD_parallel_master, StartLoc,
> +                               EndLoc, NumClauses, 1) {}
> 
>   explicit OMPParallelMasterDirective(unsigned NumClauses)
>       : OMPExecutableDirective(this, OMPParallelMasterDirectiveClass,
> -                               OMPD_parallel_master, SourceLocation(),
> -                               SourceLocation(), NumClauses, 1) {}
> +                               llvm::omp::OMPD_parallel_master,
> +                               SourceLocation(), SourceLocation(), NumClauses,
> +                               1) {}
> 
> public:
>   /// Creates directive with a list of \a Clauses.
> @@ -1915,8 +1926,8 @@ class OMPParallelSectionsDirective : public OMPExecutableDirective {
>   OMPParallelSectionsDirective(SourceLocation StartLoc, SourceLocation EndLoc,
>                                unsigned NumClauses)
>       : OMPExecutableDirective(this, OMPParallelSectionsDirectiveClass,
> -                               OMPD_parallel_sections, StartLoc, EndLoc,
> -                               NumClauses, 1),
> +                               llvm::omp::OMPD_parallel_sections, StartLoc,
> +                               EndLoc, NumClauses, 1),
>         HasCancel(false) {}
> 
>   /// Build an empty directive.
> @@ -1925,8 +1936,9 @@ class OMPParallelSectionsDirective : public OMPExecutableDirective {
>   ///
>   explicit OMPParallelSectionsDirective(unsigned NumClauses)
>       : OMPExecutableDirective(this, OMPParallelSectionsDirectiveClass,
> -                               OMPD_parallel_sections, SourceLocation(),
> -                               SourceLocation(), NumClauses, 1),
> +                               llvm::omp::OMPD_parallel_sections,
> +                               SourceLocation(), SourceLocation(), NumClauses,
> +                               1),
>         HasCancel(false) {}
> 
>   /// Set cancel state.
> @@ -1984,8 +1996,9 @@ class OMPTaskDirective : public OMPExecutableDirective {
>   ///
>   OMPTaskDirective(SourceLocation StartLoc, SourceLocation EndLoc,
>                    unsigned NumClauses)
> -      : OMPExecutableDirective(this, OMPTaskDirectiveClass, OMPD_task, StartLoc,
> -                               EndLoc, NumClauses, 1),
> +      : OMPExecutableDirective(this, OMPTaskDirectiveClass,
> +                               llvm::omp::OMPD_task, StartLoc, EndLoc,
> +                               NumClauses, 1),
>         HasCancel(false) {}
> 
>   /// Build an empty directive.
> @@ -1993,9 +2006,9 @@ class OMPTaskDirective : public OMPExecutableDirective {
>   /// \param NumClauses Number of clauses.
>   ///
>   explicit OMPTaskDirective(unsigned NumClauses)
> -      : OMPExecutableDirective(this, OMPTaskDirectiveClass, OMPD_task,
> -                               SourceLocation(), SourceLocation(), NumClauses,
> -                               1),
> +      : OMPExecutableDirective(this, OMPTaskDirectiveClass,
> +                               llvm::omp::OMPD_task, SourceLocation(),
> +                               SourceLocation(), NumClauses, 1),
>         HasCancel(false) {}
> 
>   /// Set cancel state.
> @@ -2047,14 +2060,16 @@ class OMPTaskyieldDirective : public OMPExecutableDirective {
>   /// \param EndLoc Ending location of the directive.
>   ///
>   OMPTaskyieldDirective(SourceLocation StartLoc, SourceLocation EndLoc)
> -      : OMPExecutableDirective(this, OMPTaskyieldDirectiveClass, OMPD_taskyield,
> -                               StartLoc, EndLoc, 0, 0) {}
> +      : OMPExecutableDirective(this, OMPTaskyieldDirectiveClass,
> +                               llvm::omp::OMPD_taskyield, StartLoc, EndLoc, 0,
> +                               0) {}
> 
>   /// Build an empty directive.
>   ///
>   explicit OMPTaskyieldDirective()
> -      : OMPExecutableDirective(this, OMPTaskyieldDirectiveClass, OMPD_taskyield,
> -                               SourceLocation(), SourceLocation(), 0, 0) {}
> +      : OMPExecutableDirective(this, OMPTaskyieldDirectiveClass,
> +                               llvm::omp::OMPD_taskyield, SourceLocation(),
> +                               SourceLocation(), 0, 0) {}
> 
> public:
>   /// Creates directive.
> @@ -2091,14 +2106,16 @@ class OMPBarrierDirective : public OMPExecutableDirective {
>   /// \param EndLoc Ending location of the directive.
>   ///
>   OMPBarrierDirective(SourceLocation StartLoc, SourceLocation EndLoc)
> -      : OMPExecutableDirective(this, OMPBarrierDirectiveClass, OMPD_barrier,
> -                               StartLoc, EndLoc, 0, 0) {}
> +      : OMPExecutableDirective(this, OMPBarrierDirectiveClass,
> +                               llvm::omp::OMPD_barrier, StartLoc, EndLoc, 0,
> +                               0) {}
> 
>   /// Build an empty directive.
>   ///
>   explicit OMPBarrierDirective()
> -      : OMPExecutableDirective(this, OMPBarrierDirectiveClass, OMPD_barrier,
> -                               SourceLocation(), SourceLocation(), 0, 0) {}
> +      : OMPExecutableDirective(this, OMPBarrierDirectiveClass,
> +                               llvm::omp::OMPD_barrier, SourceLocation(),
> +                               SourceLocation(), 0, 0) {}
> 
> public:
>   /// Creates directive.
> @@ -2135,14 +2152,16 @@ class OMPTaskwaitDirective : public OMPExecutableDirective {
>   /// \param EndLoc Ending location of the directive.
>   ///
>   OMPTaskwaitDirective(SourceLocation StartLoc, SourceLocation EndLoc)
> -      : OMPExecutableDirective(this, OMPTaskwaitDirectiveClass, OMPD_taskwait,
> -                               StartLoc, EndLoc, 0, 0) {}
> +      : OMPExecutableDirective(this, OMPTaskwaitDirectiveClass,
> +                               llvm::omp::OMPD_taskwait, StartLoc, EndLoc, 0,
> +                               0) {}
> 
>   /// Build an empty directive.
>   ///
>   explicit OMPTaskwaitDirective()
> -      : OMPExecutableDirective(this, OMPTaskwaitDirectiveClass, OMPD_taskwait,
> -                               SourceLocation(), SourceLocation(), 0, 0) {}
> +      : OMPExecutableDirective(this, OMPTaskwaitDirectiveClass,
> +                               llvm::omp::OMPD_taskwait, SourceLocation(),
> +                               SourceLocation(), 0, 0) {}
> 
> public:
>   /// Creates directive.
> @@ -2181,16 +2200,17 @@ class OMPTaskgroupDirective : public OMPExecutableDirective {
>   ///
>   OMPTaskgroupDirective(SourceLocation StartLoc, SourceLocation EndLoc,
>                         unsigned NumClauses)
> -      : OMPExecutableDirective(this, OMPTaskgroupDirectiveClass, OMPD_taskgroup,
> -                               StartLoc, EndLoc, NumClauses, 2) {}
> +      : OMPExecutableDirective(this, OMPTaskgroupDirectiveClass,
> +                               llvm::omp::OMPD_taskgroup, StartLoc, EndLoc,
> +                               NumClauses, 2) {}
> 
>   /// Build an empty directive.
>   /// \param NumClauses Number of clauses.
>   ///
>   explicit OMPTaskgroupDirective(unsigned NumClauses)
> -      : OMPExecutableDirective(this, OMPTaskgroupDirectiveClass, OMPD_taskgroup,
> -                               SourceLocation(), SourceLocation(), NumClauses,
> -                               2) {}
> +      : OMPExecutableDirective(this, OMPTaskgroupDirectiveClass,
> +                               llvm::omp::OMPD_taskgroup, SourceLocation(),
> +                               SourceLocation(), NumClauses, 2) {}
> 
>   /// Sets the task_reduction return variable.
>   void setReductionRef(Expr *RR) {
> @@ -2254,17 +2274,18 @@ class OMPFlushDirective : public OMPExecutableDirective {
>   ///
>   OMPFlushDirective(SourceLocation StartLoc, SourceLocation EndLoc,
>                     unsigned NumClauses)
> -      : OMPExecutableDirective(this, OMPFlushDirectiveClass, OMPD_flush,
> -                               StartLoc, EndLoc, NumClauses, 0) {}
> +      : OMPExecutableDirective(this, OMPFlushDirectiveClass,
> +                               llvm::omp::OMPD_flush, StartLoc, EndLoc,
> +                               NumClauses, 0) {}
> 
>   /// Build an empty directive.
>   ///
>   /// \param NumClauses Number of clauses.
>   ///
>   explicit OMPFlushDirective(unsigned NumClauses)
> -      : OMPExecutableDirective(this, OMPFlushDirectiveClass, OMPD_flush,
> -                               SourceLocation(), SourceLocation(), NumClauses,
> -                               0) {}
> +      : OMPExecutableDirective(this, OMPFlushDirectiveClass,
> +                               llvm::omp::OMPD_flush, SourceLocation(),
> +                               SourceLocation(), NumClauses, 0) {}
> 
> public:
>   /// Creates directive with a list of \a Clauses.
> @@ -2309,17 +2330,18 @@ class OMPOrderedDirective : public OMPExecutableDirective {
>   ///
>   OMPOrderedDirective(SourceLocation StartLoc, SourceLocation EndLoc,
>                       unsigned NumClauses)
> -      : OMPExecutableDirective(this, OMPOrderedDirectiveClass, OMPD_ordered,
> -                               StartLoc, EndLoc, NumClauses, 1) {}
> +      : OMPExecutableDirective(this, OMPOrderedDirectiveClass,
> +                               llvm::omp::OMPD_ordered, StartLoc, EndLoc,
> +                               NumClauses, 1) {}
> 
>   /// Build an empty directive.
>   ///
>   /// \param NumClauses Number of clauses.
>   ///
>   explicit OMPOrderedDirective(unsigned NumClauses)
> -      : OMPExecutableDirective(this, OMPOrderedDirectiveClass, OMPD_ordered,
> -                               SourceLocation(), SourceLocation(), NumClauses,
> -                               1) {}
> +      : OMPExecutableDirective(this, OMPOrderedDirectiveClass,
> +                               llvm::omp::OMPD_ordered, SourceLocation(),
> +                               SourceLocation(), NumClauses, 1) {}
> 
> public:
>   /// Creates directive.
> @@ -2384,8 +2406,9 @@ class OMPAtomicDirective : public OMPExecutableDirective {
>   ///
>   OMPAtomicDirective(SourceLocation StartLoc, SourceLocation EndLoc,
>                      unsigned NumClauses)
> -      : OMPExecutableDirective(this, OMPAtomicDirectiveClass, OMPD_atomic,
> -                               StartLoc, EndLoc, NumClauses, 5),
> +      : OMPExecutableDirective(this, OMPAtomicDirectiveClass,
> +                               llvm::omp::OMPD_atomic, StartLoc, EndLoc,
> +                               NumClauses, 5),
>         IsXLHSInRHSPart(false), IsPostfixUpdate(false) {}
> 
>   /// Build an empty directive.
> @@ -2393,9 +2416,9 @@ class OMPAtomicDirective : public OMPExecutableDirective {
>   /// \param NumClauses Number of clauses.
>   ///
>   explicit OMPAtomicDirective(unsigned NumClauses)
> -      : OMPExecutableDirective(this, OMPAtomicDirectiveClass, OMPD_atomic,
> -                               SourceLocation(), SourceLocation(), NumClauses,
> -                               5),
> +      : OMPExecutableDirective(this, OMPAtomicDirectiveClass,
> +                               llvm::omp::OMPD_atomic, SourceLocation(),
> +                               SourceLocation(), NumClauses, 5),
>         IsXLHSInRHSPart(false), IsPostfixUpdate(false) {}
> 
>   /// Set 'x' part of the associated expression/statement.
> @@ -2498,17 +2521,18 @@ class OMPTargetDirective : public OMPExecutableDirective {
>   ///
>   OMPTargetDirective(SourceLocation StartLoc, SourceLocation EndLoc,
>                      unsigned NumClauses)
> -      : OMPExecutableDirective(this, OMPTargetDirectiveClass, OMPD_target,
> -                               StartLoc, EndLoc, NumClauses, 1) {}
> +      : OMPExecutableDirective(this, OMPTargetDirectiveClass,
> +                               llvm::omp::OMPD_target, StartLoc, EndLoc,
> +                               NumClauses, 1) {}
> 
>   /// Build an empty directive.
>   ///
>   /// \param NumClauses Number of clauses.
>   ///
>   explicit OMPTargetDirective(unsigned NumClauses)
> -      : OMPExecutableDirective(this, OMPTargetDirectiveClass, OMPD_target,
> -                               SourceLocation(), SourceLocation(), NumClauses,
> -                               1) {}
> +      : OMPExecutableDirective(this, OMPTargetDirectiveClass,
> +                               llvm::omp::OMPD_target, SourceLocation(),
> +                               SourceLocation(), NumClauses, 1) {}
> 
> public:
>   /// Creates directive with a list of \a Clauses.
> @@ -2557,8 +2581,8 @@ class OMPTargetDataDirective : public OMPExecutableDirective {
>   OMPTargetDataDirective(SourceLocation StartLoc, SourceLocation EndLoc,
>                          unsigned NumClauses)
>       : OMPExecutableDirective(this, OMPTargetDataDirectiveClass,
> -                               OMPD_target_data, StartLoc, EndLoc, NumClauses,
> -                               1) {}
> +                               llvm::omp::OMPD_target_data, StartLoc, EndLoc,
> +                               NumClauses, 1) {}
> 
>   /// Build an empty directive.
>   ///
> @@ -2566,7 +2590,7 @@ class OMPTargetDataDirective : public OMPExecutableDirective {
>   ///
>   explicit OMPTargetDataDirective(unsigned NumClauses)
>       : OMPExecutableDirective(this, OMPTargetDataDirectiveClass,
> -                               OMPD_target_data, SourceLocation(),
> +                               llvm::omp::OMPD_target_data, SourceLocation(),
>                                SourceLocation(), NumClauses, 1) {}
> 
> public:
> @@ -2615,8 +2639,8 @@ class OMPTargetEnterDataDirective : public OMPExecutableDirective {
>   OMPTargetEnterDataDirective(SourceLocation StartLoc, SourceLocation EndLoc,
>                               unsigned NumClauses)
>       : OMPExecutableDirective(this, OMPTargetEnterDataDirectiveClass,
> -                               OMPD_target_enter_data, StartLoc, EndLoc,
> -                               NumClauses, /*NumChildren=*/1) {}
> +                               llvm::omp::OMPD_target_enter_data, StartLoc,
> +                               EndLoc, NumClauses, /*NumChildren=*/1) {}
> 
>   /// Build an empty directive.
>   ///
> @@ -2624,8 +2648,8 @@ class OMPTargetEnterDataDirective : public OMPExecutableDirective {
>   ///
>   explicit OMPTargetEnterDataDirective(unsigned NumClauses)
>       : OMPExecutableDirective(this, OMPTargetEnterDataDirectiveClass,
> -                               OMPD_target_enter_data, SourceLocation(),
> -                               SourceLocation(), NumClauses,
> +                               llvm::omp::OMPD_target_enter_data,
> +                               SourceLocation(), SourceLocation(), NumClauses,
>                                /*NumChildren=*/1) {}
> 
> public:
> @@ -2674,8 +2698,8 @@ class OMPTargetExitDataDirective : public OMPExecutableDirective {
>   OMPTargetExitDataDirective(SourceLocation StartLoc, SourceLocation EndLoc,
>                              unsigned NumClauses)
>       : OMPExecutableDirective(this, OMPTargetExitDataDirectiveClass,
> -                               OMPD_target_exit_data, StartLoc, EndLoc,
> -                               NumClauses, /*NumChildren=*/1) {}
> +                               llvm::omp::OMPD_target_exit_data, StartLoc,
> +                               EndLoc, NumClauses, /*NumChildren=*/1) {}
> 
>   /// Build an empty directive.
>   ///
> @@ -2683,8 +2707,8 @@ class OMPTargetExitDataDirective : public OMPExecutableDirective {
>   ///
>   explicit OMPTargetExitDataDirective(unsigned NumClauses)
>       : OMPExecutableDirective(this, OMPTargetExitDataDirectiveClass,
> -                               OMPD_target_exit_data, SourceLocation(),
> -                               SourceLocation(), NumClauses,
> +                               llvm::omp::OMPD_target_exit_data,
> +                               SourceLocation(), SourceLocation(), NumClauses,
>                                /*NumChildren=*/1) {}
> 
> public:
> @@ -2732,8 +2756,8 @@ class OMPTargetParallelDirective : public OMPExecutableDirective {
>   OMPTargetParallelDirective(SourceLocation StartLoc, SourceLocation EndLoc,
>                              unsigned NumClauses)
>       : OMPExecutableDirective(this, OMPTargetParallelDirectiveClass,
> -                               OMPD_target_parallel, StartLoc, EndLoc,
> -                               NumClauses, /*NumChildren=*/1) {}
> +                               llvm::omp::OMPD_target_parallel, StartLoc,
> +                               EndLoc, NumClauses, /*NumChildren=*/1) {}
> 
>   /// Build an empty directive.
>   ///
> @@ -2741,8 +2765,8 @@ class OMPTargetParallelDirective : public OMPExecutableDirective {
>   ///
>   explicit OMPTargetParallelDirective(unsigned NumClauses)
>       : OMPExecutableDirective(this, OMPTargetParallelDirectiveClass,
> -                               OMPD_target_parallel, SourceLocation(),
> -                               SourceLocation(), NumClauses,
> +                               llvm::omp::OMPD_target_parallel,
> +                               SourceLocation(), SourceLocation(), NumClauses,
>                                /*NumChildren=*/1) {}
> 
> public:
> @@ -2797,7 +2821,7 @@ class OMPTargetParallelForDirective : public OMPLoopDirective {
>   OMPTargetParallelForDirective(SourceLocation StartLoc, SourceLocation EndLoc,
>                                 unsigned CollapsedNum, unsigned NumClauses)
>       : OMPLoopDirective(this, OMPTargetParallelForDirectiveClass,
> -                         OMPD_target_parallel_for, StartLoc, EndLoc,
> +                         llvm::omp::OMPD_target_parallel_for, StartLoc, EndLoc,
>                          CollapsedNum, NumClauses),
>         HasCancel(false) {}
> 
> @@ -2809,7 +2833,7 @@ class OMPTargetParallelForDirective : public OMPLoopDirective {
>   explicit OMPTargetParallelForDirective(unsigned CollapsedNum,
>                                          unsigned NumClauses)
>       : OMPLoopDirective(this, OMPTargetParallelForDirectiveClass,
> -                         OMPD_target_parallel_for, SourceLocation(),
> +                         llvm::omp::OMPD_target_parallel_for, SourceLocation(),
>                          SourceLocation(), CollapsedNum, NumClauses),
>         HasCancel(false) {}
> 
> @@ -2871,17 +2895,18 @@ class OMPTeamsDirective : public OMPExecutableDirective {
>   ///
>   OMPTeamsDirective(SourceLocation StartLoc, SourceLocation EndLoc,
>                     unsigned NumClauses)
> -      : OMPExecutableDirective(this, OMPTeamsDirectiveClass, OMPD_teams,
> -                               StartLoc, EndLoc, NumClauses, 1) {}
> +      : OMPExecutableDirective(this, OMPTeamsDirectiveClass,
> +                               llvm::omp::OMPD_teams, StartLoc, EndLoc,
> +                               NumClauses, 1) {}
> 
>   /// Build an empty directive.
>   ///
>   /// \param NumClauses Number of clauses.
>   ///
>   explicit OMPTeamsDirective(unsigned NumClauses)
> -      : OMPExecutableDirective(this, OMPTeamsDirectiveClass, OMPD_teams,
> -                               SourceLocation(), SourceLocation(), NumClauses,
> -                               1) {}
> +      : OMPExecutableDirective(this, OMPTeamsDirectiveClass,
> +                               llvm::omp::OMPD_teams, SourceLocation(),
> +                               SourceLocation(), NumClauses, 1) {}
> 
> public:
>   /// Creates directive with a list of \a Clauses.
> @@ -2928,16 +2953,17 @@ class OMPCancellationPointDirective : public OMPExecutableDirective {
>   ///
>   OMPCancellationPointDirective(SourceLocation StartLoc, SourceLocation EndLoc)
>       : OMPExecutableDirective(this, OMPCancellationPointDirectiveClass,
> -                               OMPD_cancellation_point, StartLoc, EndLoc, 0, 0),
> -        CancelRegion(OMPD_unknown) {}
> +                               llvm::omp::OMPD_cancellation_point, StartLoc,
> +                               EndLoc, 0, 0),
> +        CancelRegion(llvm::omp::OMPD_unknown) {}
> 
>   /// Build an empty directive.
>   ///
>   explicit OMPCancellationPointDirective()
>       : OMPExecutableDirective(this, OMPCancellationPointDirectiveClass,
> -                               OMPD_cancellation_point, SourceLocation(),
> -                               SourceLocation(), 0, 0),
> -        CancelRegion(OMPD_unknown) {}
> +                               llvm::omp::OMPD_cancellation_point,
> +                               SourceLocation(), SourceLocation(), 0, 0),
> +        CancelRegion(llvm::omp::OMPD_unknown) {}
> 
>   /// Set cancel region for current cancellation point.
>   /// \param CR Cancellation region.
> @@ -2987,18 +3013,19 @@ class OMPCancelDirective : public OMPExecutableDirective {
>   ///
>   OMPCancelDirective(SourceLocation StartLoc, SourceLocation EndLoc,
>                      unsigned NumClauses)
> -      : OMPExecutableDirective(this, OMPCancelDirectiveClass, OMPD_cancel,
> -                               StartLoc, EndLoc, NumClauses, 0),
> -        CancelRegion(OMPD_unknown) {}
> +      : OMPExecutableDirective(this, OMPCancelDirectiveClass,
> +                               llvm::omp::OMPD_cancel, StartLoc, EndLoc,
> +                               NumClauses, 0),
> +        CancelRegion(llvm::omp::OMPD_unknown) {}
> 
>   /// Build an empty directive.
>   ///
>   /// \param NumClauses Number of clauses.
>   explicit OMPCancelDirective(unsigned NumClauses)
> -      : OMPExecutableDirective(this, OMPCancelDirectiveClass, OMPD_cancel,
> -                               SourceLocation(), SourceLocation(), NumClauses,
> -                               0),
> -        CancelRegion(OMPD_unknown) {}
> +      : OMPExecutableDirective(this, OMPCancelDirectiveClass,
> +                               llvm::omp::OMPD_cancel, SourceLocation(),
> +                               SourceLocation(), NumClauses, 0),
> +        CancelRegion(llvm::omp::OMPD_unknown) {}
> 
>   /// Set cancel region for current cancellation point.
>   /// \param CR Cancellation region.
> @@ -3052,8 +3079,9 @@ class OMPTaskLoopDirective : public OMPLoopDirective {
>   ///
>   OMPTaskLoopDirective(SourceLocation StartLoc, SourceLocation EndLoc,
>                        unsigned CollapsedNum, unsigned NumClauses)
> -      : OMPLoopDirective(this, OMPTaskLoopDirectiveClass, OMPD_taskloop,
> -                         StartLoc, EndLoc, CollapsedNum, NumClauses) {}
> +      : OMPLoopDirective(this, OMPTaskLoopDirectiveClass,
> +                         llvm::omp::OMPD_taskloop, StartLoc, EndLoc,
> +                         CollapsedNum, NumClauses) {}
> 
>   /// Build an empty directive.
>   ///
> @@ -3061,9 +3089,9 @@ class OMPTaskLoopDirective : public OMPLoopDirective {
>   /// \param NumClauses Number of clauses.
>   ///
>   explicit OMPTaskLoopDirective(unsigned CollapsedNum, unsigned NumClauses)
> -      : OMPLoopDirective(this, OMPTaskLoopDirectiveClass, OMPD_taskloop,
> -                         SourceLocation(), SourceLocation(), CollapsedNum,
> -                         NumClauses) {}
> +      : OMPLoopDirective(this, OMPTaskLoopDirectiveClass,
> +                         llvm::omp::OMPD_taskloop, SourceLocation(),
> +                         SourceLocation(), CollapsedNum, NumClauses) {}
> 
> public:
>   /// Creates directive with a list of \a Clauses.
> @@ -3118,8 +3146,8 @@ class OMPTaskLoopSimdDirective : public OMPLoopDirective {
>   OMPTaskLoopSimdDirective(SourceLocation StartLoc, SourceLocation EndLoc,
>                            unsigned CollapsedNum, unsigned NumClauses)
>       : OMPLoopDirective(this, OMPTaskLoopSimdDirectiveClass,
> -                         OMPD_taskloop_simd, StartLoc, EndLoc, CollapsedNum,
> -                         NumClauses) {}
> +                         llvm::omp::OMPD_taskloop_simd, StartLoc, EndLoc,
> +                         CollapsedNum, NumClauses) {}
> 
>   /// Build an empty directive.
>   ///
> @@ -3128,8 +3156,8 @@ class OMPTaskLoopSimdDirective : public OMPLoopDirective {
>   ///
>   explicit OMPTaskLoopSimdDirective(unsigned CollapsedNum, unsigned NumClauses)
>       : OMPLoopDirective(this, OMPTaskLoopSimdDirectiveClass,
> -                         OMPD_taskloop_simd, SourceLocation(), SourceLocation(),
> -                         CollapsedNum, NumClauses) {}
> +                         llvm::omp::OMPD_taskloop_simd, SourceLocation(),
> +                         SourceLocation(), CollapsedNum, NumClauses) {}
> 
> public:
>   /// Creates directive with a list of \a Clauses.
> @@ -3185,8 +3213,8 @@ class OMPMasterTaskLoopDirective : public OMPLoopDirective {
>   OMPMasterTaskLoopDirective(SourceLocation StartLoc, SourceLocation EndLoc,
>                              unsigned CollapsedNum, unsigned NumClauses)
>       : OMPLoopDirective(this, OMPMasterTaskLoopDirectiveClass,
> -                         OMPD_master_taskloop, StartLoc, EndLoc, CollapsedNum,
> -                         NumClauses) {}
> +                         llvm::omp::OMPD_master_taskloop, StartLoc, EndLoc,
> +                         CollapsedNum, NumClauses) {}
> 
>   /// Build an empty directive.
>   ///
> @@ -3196,7 +3224,7 @@ class OMPMasterTaskLoopDirective : public OMPLoopDirective {
>   explicit OMPMasterTaskLoopDirective(unsigned CollapsedNum,
>                                       unsigned NumClauses)
>       : OMPLoopDirective(this, OMPMasterTaskLoopDirectiveClass,
> -                         OMPD_master_taskloop, SourceLocation(),
> +                         llvm::omp::OMPD_master_taskloop, SourceLocation(),
>                          SourceLocation(), CollapsedNum, NumClauses) {}
> 
> public:
> @@ -3253,7 +3281,7 @@ class OMPMasterTaskLoopSimdDirective : public OMPLoopDirective {
>   OMPMasterTaskLoopSimdDirective(SourceLocation StartLoc, SourceLocation EndLoc,
>                                  unsigned CollapsedNum, unsigned NumClauses)
>       : OMPLoopDirective(this, OMPMasterTaskLoopSimdDirectiveClass,
> -                         OMPD_master_taskloop_simd, StartLoc, EndLoc,
> +                         llvm::omp::OMPD_master_taskloop_simd, StartLoc, EndLoc,
>                          CollapsedNum, NumClauses) {}
> 
>   /// Build an empty directive.
> @@ -3264,7 +3292,7 @@ class OMPMasterTaskLoopSimdDirective : public OMPLoopDirective {
>   explicit OMPMasterTaskLoopSimdDirective(unsigned CollapsedNum,
>                                           unsigned NumClauses)
>       : OMPLoopDirective(this, OMPMasterTaskLoopSimdDirectiveClass,
> -                         OMPD_master_taskloop_simd, SourceLocation(),
> +                         llvm::omp::OMPD_master_taskloop_simd, SourceLocation(),
>                          SourceLocation(), CollapsedNum, NumClauses) {}
> 
> public:
> @@ -3322,8 +3350,8 @@ class OMPParallelMasterTaskLoopDirective : public OMPLoopDirective {
>                                      SourceLocation EndLoc,
>                                      unsigned CollapsedNum, unsigned NumClauses)
>       : OMPLoopDirective(this, OMPParallelMasterTaskLoopDirectiveClass,
> -                         OMPD_parallel_master_taskloop, StartLoc, EndLoc,
> -                         CollapsedNum, NumClauses) {}
> +                         llvm::omp::OMPD_parallel_master_taskloop, StartLoc,
> +                         EndLoc, CollapsedNum, NumClauses) {}
> 
>   /// Build an empty directive.
>   ///
> @@ -3333,8 +3361,9 @@ class OMPParallelMasterTaskLoopDirective : public OMPLoopDirective {
>   explicit OMPParallelMasterTaskLoopDirective(unsigned CollapsedNum,
>                                               unsigned NumClauses)
>       : OMPLoopDirective(this, OMPParallelMasterTaskLoopDirectiveClass,
> -                         OMPD_parallel_master_taskloop, SourceLocation(),
> -                         SourceLocation(), CollapsedNum, NumClauses) {}
> +                         llvm::omp::OMPD_parallel_master_taskloop,
> +                         SourceLocation(), SourceLocation(), CollapsedNum,
> +                         NumClauses) {}
> 
> public:
>   /// Creates directive with a list of \a Clauses.
> @@ -3393,8 +3422,8 @@ class OMPParallelMasterTaskLoopSimdDirective : public OMPLoopDirective {
>                                          unsigned CollapsedNum,
>                                          unsigned NumClauses)
>       : OMPLoopDirective(this, OMPParallelMasterTaskLoopSimdDirectiveClass,
> -                         OMPD_parallel_master_taskloop_simd, StartLoc, EndLoc,
> -                         CollapsedNum, NumClauses) {}
> +                         llvm::omp::OMPD_parallel_master_taskloop_simd,
> +                         StartLoc, EndLoc, CollapsedNum, NumClauses) {}
> 
>   /// Build an empty directive.
>   ///
> @@ -3404,8 +3433,9 @@ class OMPParallelMasterTaskLoopSimdDirective : public OMPLoopDirective {
>   explicit OMPParallelMasterTaskLoopSimdDirective(unsigned CollapsedNum,
>                                                   unsigned NumClauses)
>       : OMPLoopDirective(this, OMPParallelMasterTaskLoopSimdDirectiveClass,
> -                         OMPD_parallel_master_taskloop_simd, SourceLocation(),
> -                         SourceLocation(), CollapsedNum, NumClauses) {}
> +                         llvm::omp::OMPD_parallel_master_taskloop_simd,
> +                         SourceLocation(), SourceLocation(), CollapsedNum,
> +                         NumClauses) {}
> 
> public:
>   /// Creates directive with a list of \p Clauses.
> @@ -3459,9 +3489,9 @@ class OMPDistributeDirective : public OMPLoopDirective {
>   ///
>   OMPDistributeDirective(SourceLocation StartLoc, SourceLocation EndLoc,
>                          unsigned CollapsedNum, unsigned NumClauses)
> -      : OMPLoopDirective(this, OMPDistributeDirectiveClass, OMPD_distribute,
> -                         StartLoc, EndLoc, CollapsedNum, NumClauses)
> -        {}
> +      : OMPLoopDirective(this, OMPDistributeDirectiveClass,
> +                         llvm::omp::OMPD_distribute, StartLoc, EndLoc,
> +                         CollapsedNum, NumClauses) {}
> 
>   /// Build an empty directive.
>   ///
> @@ -3469,10 +3499,9 @@ class OMPDistributeDirective : public OMPLoopDirective {
>   /// \param NumClauses Number of clauses.
>   ///
>   explicit OMPDistributeDirective(unsigned CollapsedNum, unsigned NumClauses)
> -      : OMPLoopDirective(this, OMPDistributeDirectiveClass, OMPD_distribute,
> -                         SourceLocation(), SourceLocation(), CollapsedNum,
> -                         NumClauses)
> -        {}
> +      : OMPLoopDirective(this, OMPDistributeDirectiveClass,
> +                         llvm::omp::OMPD_distribute, SourceLocation(),
> +                         SourceLocation(), CollapsedNum, NumClauses) {}
> 
> public:
>   /// Creates directive with a list of \a Clauses.
> @@ -3526,8 +3555,8 @@ class OMPTargetUpdateDirective : public OMPExecutableDirective {
>   OMPTargetUpdateDirective(SourceLocation StartLoc, SourceLocation EndLoc,
>                            unsigned NumClauses)
>       : OMPExecutableDirective(this, OMPTargetUpdateDirectiveClass,
> -                               OMPD_target_update, StartLoc, EndLoc, NumClauses,
> -                               1) {}
> +                               llvm::omp::OMPD_target_update, StartLoc, EndLoc,
> +                               NumClauses, 1) {}
> 
>   /// Build an empty directive.
>   ///
> @@ -3535,7 +3564,7 @@ class OMPTargetUpdateDirective : public OMPExecutableDirective {
>   ///
>   explicit OMPTargetUpdateDirective(unsigned NumClauses)
>       : OMPExecutableDirective(this, OMPTargetUpdateDirectiveClass,
> -                               OMPD_target_update, SourceLocation(),
> +                               llvm::omp::OMPD_target_update, SourceLocation(),
>                                SourceLocation(), NumClauses, 1) {}
> 
> public:
> @@ -3590,8 +3619,9 @@ class OMPDistributeParallelForDirective : public OMPLoopDirective {
>                                     SourceLocation EndLoc,
>                                     unsigned CollapsedNum, unsigned NumClauses)
>       : OMPLoopDirective(this, OMPDistributeParallelForDirectiveClass,
> -                         OMPD_distribute_parallel_for, StartLoc, EndLoc,
> -                         CollapsedNum, NumClauses), HasCancel(false) {}
> +                         llvm::omp::OMPD_distribute_parallel_for, StartLoc,
> +                         EndLoc, CollapsedNum, NumClauses),
> +        HasCancel(false) {}
> 
>   /// Build an empty directive.
>   ///
> @@ -3601,8 +3631,9 @@ class OMPDistributeParallelForDirective : public OMPLoopDirective {
>   explicit OMPDistributeParallelForDirective(unsigned CollapsedNum,
>                                              unsigned NumClauses)
>       : OMPLoopDirective(this, OMPDistributeParallelForDirectiveClass,
> -                         OMPD_distribute_parallel_for, SourceLocation(),
> -                         SourceLocation(), CollapsedNum, NumClauses),
> +                         llvm::omp::OMPD_distribute_parallel_for,
> +                         SourceLocation(), SourceLocation(), CollapsedNum,
> +                         NumClauses),
>         HasCancel(false) {}
> 
>   /// Set cancel state.
> @@ -3669,7 +3700,7 @@ class OMPDistributeParallelForSimdDirective final : public OMPLoopDirective {
>                                         unsigned CollapsedNum,
>                                         unsigned NumClauses)
>       : OMPLoopDirective(this, OMPDistributeParallelForSimdDirectiveClass,
> -                         OMPD_distribute_parallel_for_simd, StartLoc,
> +                         llvm::omp::OMPD_distribute_parallel_for_simd, StartLoc,
>                          EndLoc, CollapsedNum, NumClauses) {}
> 
>   /// Build an empty directive.
> @@ -3680,7 +3711,7 @@ class OMPDistributeParallelForSimdDirective final : public OMPLoopDirective {
>   explicit OMPDistributeParallelForSimdDirective(unsigned CollapsedNum,
>                                                  unsigned NumClauses)
>       : OMPLoopDirective(this, OMPDistributeParallelForSimdDirectiveClass,
> -                         OMPD_distribute_parallel_for_simd,
> +                         llvm::omp::OMPD_distribute_parallel_for_simd,
>                          SourceLocation(), SourceLocation(), CollapsedNum,
>                          NumClauses) {}
> 
> @@ -3736,8 +3767,8 @@ class OMPDistributeSimdDirective final : public OMPLoopDirective {
>   OMPDistributeSimdDirective(SourceLocation StartLoc, SourceLocation EndLoc,
>                              unsigned CollapsedNum, unsigned NumClauses)
>       : OMPLoopDirective(this, OMPDistributeSimdDirectiveClass,
> -                         OMPD_distribute_simd, StartLoc, EndLoc, CollapsedNum,
> -                         NumClauses) {}
> +                         llvm::omp::OMPD_distribute_simd, StartLoc, EndLoc,
> +                         CollapsedNum, NumClauses) {}
> 
>   /// Build an empty directive.
>   ///
> @@ -3747,7 +3778,7 @@ class OMPDistributeSimdDirective final : public OMPLoopDirective {
>   explicit OMPDistributeSimdDirective(unsigned CollapsedNum,
>                                       unsigned NumClauses)
>       : OMPLoopDirective(this, OMPDistributeSimdDirectiveClass,
> -                         OMPD_distribute_simd, SourceLocation(),
> +                         llvm::omp::OMPD_distribute_simd, SourceLocation(),
>                          SourceLocation(), CollapsedNum, NumClauses) {}
> 
> public:
> @@ -3801,11 +3832,12 @@ class OMPTargetParallelForSimdDirective final : public OMPLoopDirective {
>   /// \param CollapsedNum Number of collapsed nested loops.
>   /// \param NumClauses Number of clauses.
>   ///
> -  OMPTargetParallelForSimdDirective(SourceLocation StartLoc, SourceLocation EndLoc,
> -                                unsigned CollapsedNum, unsigned NumClauses)
> +  OMPTargetParallelForSimdDirective(SourceLocation StartLoc,
> +                                    SourceLocation EndLoc,
> +                                    unsigned CollapsedNum, unsigned NumClauses)
>       : OMPLoopDirective(this, OMPTargetParallelForSimdDirectiveClass,
> -                         OMPD_target_parallel_for_simd, StartLoc, EndLoc,
> -                         CollapsedNum, NumClauses) {}
> +                         llvm::omp::OMPD_target_parallel_for_simd, StartLoc,
> +                         EndLoc, CollapsedNum, NumClauses) {}
> 
>   /// Build an empty directive.
>   ///
> @@ -3815,8 +3847,9 @@ class OMPTargetParallelForSimdDirective final : public OMPLoopDirective {
>   explicit OMPTargetParallelForSimdDirective(unsigned CollapsedNum,
>                                              unsigned NumClauses)
>       : OMPLoopDirective(this, OMPTargetParallelForSimdDirectiveClass,
> -                         OMPD_target_parallel_for_simd, SourceLocation(),
> -                         SourceLocation(), CollapsedNum, NumClauses) {}
> +                         llvm::omp::OMPD_target_parallel_for_simd,
> +                         SourceLocation(), SourceLocation(), CollapsedNum,
> +                         NumClauses) {}
> 
> public:
>   /// Creates directive with a list of \a Clauses.
> @@ -3872,8 +3905,8 @@ class OMPTargetSimdDirective final : public OMPLoopDirective {
>   OMPTargetSimdDirective(SourceLocation StartLoc, SourceLocation EndLoc,
>                          unsigned CollapsedNum, unsigned NumClauses)
>       : OMPLoopDirective(this, OMPTargetSimdDirectiveClass,
> -                         OMPD_target_simd, StartLoc, EndLoc, CollapsedNum,
> -                         NumClauses) {}
> +                         llvm::omp::OMPD_target_simd, StartLoc, EndLoc,
> +                         CollapsedNum, NumClauses) {}
> 
>   /// Build an empty directive.
>   ///
> @@ -3881,9 +3914,9 @@ class OMPTargetSimdDirective final : public OMPLoopDirective {
>   /// \param NumClauses Number of clauses.
>   ///
>   explicit OMPTargetSimdDirective(unsigned CollapsedNum, unsigned NumClauses)
> -      : OMPLoopDirective(this, OMPTargetSimdDirectiveClass, OMPD_target_simd,
> -                         SourceLocation(),SourceLocation(), CollapsedNum,
> -                         NumClauses) {}
> +      : OMPLoopDirective(this, OMPTargetSimdDirectiveClass,
> +                         llvm::omp::OMPD_target_simd, SourceLocation(),
> +                         SourceLocation(), CollapsedNum, NumClauses) {}
> 
> public:
>   /// Creates directive with a list of \a Clauses.
> @@ -3938,7 +3971,7 @@ class OMPTeamsDistributeDirective final : public OMPLoopDirective {
>   OMPTeamsDistributeDirective(SourceLocation StartLoc, SourceLocation EndLoc,
>                               unsigned CollapsedNum, unsigned NumClauses)
>       : OMPLoopDirective(this, OMPTeamsDistributeDirectiveClass,
> -                         OMPD_teams_distribute, StartLoc, EndLoc,
> +                         llvm::omp::OMPD_teams_distribute, StartLoc, EndLoc,
>                          CollapsedNum, NumClauses) {}
> 
>   /// Build an empty directive.
> @@ -3949,7 +3982,7 @@ class OMPTeamsDistributeDirective final : public OMPLoopDirective {
>   explicit OMPTeamsDistributeDirective(unsigned CollapsedNum,
>                                        unsigned NumClauses)
>       : OMPLoopDirective(this, OMPTeamsDistributeDirectiveClass,
> -                         OMPD_teams_distribute, SourceLocation(),
> +                         llvm::omp::OMPD_teams_distribute, SourceLocation(),
>                          SourceLocation(), CollapsedNum, NumClauses) {}
> 
> public:
> @@ -4007,8 +4040,8 @@ class OMPTeamsDistributeSimdDirective final : public OMPLoopDirective {
>                                   SourceLocation EndLoc, unsigned CollapsedNum,
>                                   unsigned NumClauses)
>       : OMPLoopDirective(this, OMPTeamsDistributeSimdDirectiveClass,
> -                         OMPD_teams_distribute_simd, StartLoc, EndLoc,
> -                         CollapsedNum, NumClauses) {}
> +                         llvm::omp::OMPD_teams_distribute_simd, StartLoc,
> +                         EndLoc, CollapsedNum, NumClauses) {}
> 
>   /// Build an empty directive.
>   ///
> @@ -4018,8 +4051,9 @@ class OMPTeamsDistributeSimdDirective final : public OMPLoopDirective {
>   explicit OMPTeamsDistributeSimdDirective(unsigned CollapsedNum,
>                                            unsigned NumClauses)
>       : OMPLoopDirective(this, OMPTeamsDistributeSimdDirectiveClass,
> -                         OMPD_teams_distribute_simd, SourceLocation(),
> -                         SourceLocation(), CollapsedNum, NumClauses) {}
> +                         llvm::omp::OMPD_teams_distribute_simd,
> +                         SourceLocation(), SourceLocation(), CollapsedNum,
> +                         NumClauses) {}
> 
> public:
>   /// Creates directive with a list of \a Clauses.
> @@ -4079,8 +4113,8 @@ class OMPTeamsDistributeParallelForSimdDirective final
>                                              unsigned CollapsedNum,
>                                              unsigned NumClauses)
>       : OMPLoopDirective(this, OMPTeamsDistributeParallelForSimdDirectiveClass,
> -                         OMPD_teams_distribute_parallel_for_simd, StartLoc,
> -                         EndLoc, CollapsedNum, NumClauses) {}
> +                         llvm::omp::OMPD_teams_distribute_parallel_for_simd,
> +                         StartLoc, EndLoc, CollapsedNum, NumClauses) {}
> 
>   /// Build an empty directive.
>   ///
> @@ -4090,7 +4124,7 @@ class OMPTeamsDistributeParallelForSimdDirective final
>   explicit OMPTeamsDistributeParallelForSimdDirective(unsigned CollapsedNum,
>                                                       unsigned NumClauses)
>       : OMPLoopDirective(this, OMPTeamsDistributeParallelForSimdDirectiveClass,
> -                         OMPD_teams_distribute_parallel_for_simd,
> +                         llvm::omp::OMPD_teams_distribute_parallel_for_simd,
>                          SourceLocation(), SourceLocation(), CollapsedNum,
>                          NumClauses) {}
> 
> @@ -4151,8 +4185,9 @@ class OMPTeamsDistributeParallelForDirective final : public OMPLoopDirective {
>                                          unsigned CollapsedNum,
>                                          unsigned NumClauses)
>       : OMPLoopDirective(this, OMPTeamsDistributeParallelForDirectiveClass,
> -                         OMPD_teams_distribute_parallel_for, StartLoc, EndLoc,
> -                         CollapsedNum, NumClauses), HasCancel(false) {}
> +                         llvm::omp::OMPD_teams_distribute_parallel_for,
> +                         StartLoc, EndLoc, CollapsedNum, NumClauses),
> +        HasCancel(false) {}
> 
>   /// Build an empty directive.
>   ///
> @@ -4162,8 +4197,9 @@ class OMPTeamsDistributeParallelForDirective final : public OMPLoopDirective {
>   explicit OMPTeamsDistributeParallelForDirective(unsigned CollapsedNum,
>                                                   unsigned NumClauses)
>       : OMPLoopDirective(this, OMPTeamsDistributeParallelForDirectiveClass,
> -                         OMPD_teams_distribute_parallel_for, SourceLocation(),
> -                         SourceLocation(), CollapsedNum, NumClauses),
> +                         llvm::omp::OMPD_teams_distribute_parallel_for,
> +                         SourceLocation(), SourceLocation(), CollapsedNum,
> +                         NumClauses),
>         HasCancel(false) {}
> 
>   /// Set cancel state.
> @@ -4223,8 +4259,8 @@ class OMPTargetTeamsDirective final : public OMPExecutableDirective {
>   OMPTargetTeamsDirective(SourceLocation StartLoc, SourceLocation EndLoc,
>                           unsigned NumClauses)
>       : OMPExecutableDirective(this, OMPTargetTeamsDirectiveClass,
> -                               OMPD_target_teams, StartLoc, EndLoc, NumClauses,
> -                               1) {}
> +                               llvm::omp::OMPD_target_teams, StartLoc, EndLoc,
> +                               NumClauses, 1) {}
> 
>   /// Build an empty directive.
>   ///
> @@ -4232,7 +4268,7 @@ class OMPTargetTeamsDirective final : public OMPExecutableDirective {
>   ///
>   explicit OMPTargetTeamsDirective(unsigned NumClauses)
>       : OMPExecutableDirective(this, OMPTargetTeamsDirectiveClass,
> -                               OMPD_target_teams, SourceLocation(),
> +                               llvm::omp::OMPD_target_teams, SourceLocation(),
>                                SourceLocation(), NumClauses, 1) {}
> 
> public:
> @@ -4285,8 +4321,8 @@ class OMPTargetTeamsDistributeDirective final : public OMPLoopDirective {
>                                     SourceLocation EndLoc,
>                                     unsigned CollapsedNum, unsigned NumClauses)
>       : OMPLoopDirective(this, OMPTargetTeamsDistributeDirectiveClass,
> -                         OMPD_target_teams_distribute, StartLoc, EndLoc,
> -                         CollapsedNum, NumClauses) {}
> +                         llvm::omp::OMPD_target_teams_distribute, StartLoc,
> +                         EndLoc, CollapsedNum, NumClauses) {}
> 
>   /// Build an empty directive.
>   ///
> @@ -4296,8 +4332,9 @@ class OMPTargetTeamsDistributeDirective final : public OMPLoopDirective {
>   explicit OMPTargetTeamsDistributeDirective(unsigned CollapsedNum,
>                                              unsigned NumClauses)
>       : OMPLoopDirective(this, OMPTargetTeamsDistributeDirectiveClass,
> -                         OMPD_target_teams_distribute, SourceLocation(),
> -                         SourceLocation(), CollapsedNum, NumClauses) {}
> +                         llvm::omp::OMPD_target_teams_distribute,
> +                         SourceLocation(), SourceLocation(), CollapsedNum,
> +                         NumClauses) {}
> 
> public:
>   /// Creates directive with a list of \a Clauses.
> @@ -4358,8 +4395,8 @@ class OMPTargetTeamsDistributeParallelForDirective final
>                                                unsigned NumClauses)
>       : OMPLoopDirective(this,
>                          OMPTargetTeamsDistributeParallelForDirectiveClass,
> -                         OMPD_target_teams_distribute_parallel_for, StartLoc,
> -                         EndLoc, CollapsedNum, NumClauses),
> +                         llvm::omp::OMPD_target_teams_distribute_parallel_for,
> +                         StartLoc, EndLoc, CollapsedNum, NumClauses),
>         HasCancel(false) {}
> 
>   /// Build an empty directive.
> @@ -4371,8 +4408,8 @@ class OMPTargetTeamsDistributeParallelForDirective final
>                                                         unsigned NumClauses)
>       : OMPLoopDirective(
>             this, OMPTargetTeamsDistributeParallelForDirectiveClass,
> -            OMPD_target_teams_distribute_parallel_for, SourceLocation(),
> -            SourceLocation(), CollapsedNum, NumClauses),
> +            llvm::omp::OMPD_target_teams_distribute_parallel_for,
> +            SourceLocation(), SourceLocation(), CollapsedNum, NumClauses),
>         HasCancel(false) {}
> 
>   /// Set cancel state.
> @@ -4438,10 +4475,10 @@ class OMPTargetTeamsDistributeParallelForSimdDirective final
>                                                    SourceLocation EndLoc,
>                                                    unsigned CollapsedNum,
>                                                    unsigned NumClauses)
> -      : OMPLoopDirective(this,
> -                         OMPTargetTeamsDistributeParallelForSimdDirectiveClass,
> -                         OMPD_target_teams_distribute_parallel_for_simd,
> -                         StartLoc, EndLoc, CollapsedNum, NumClauses) {}
> +      : OMPLoopDirective(
> +            this, OMPTargetTeamsDistributeParallelForSimdDirectiveClass,
> +            llvm::omp::OMPD_target_teams_distribute_parallel_for_simd, StartLoc,
> +            EndLoc, CollapsedNum, NumClauses) {}
> 
>   /// Build an empty directive.
>   ///
> @@ -4452,8 +4489,8 @@ class OMPTargetTeamsDistributeParallelForSimdDirective final
>       unsigned CollapsedNum, unsigned NumClauses)
>       : OMPLoopDirective(
>             this, OMPTargetTeamsDistributeParallelForSimdDirectiveClass,
> -            OMPD_target_teams_distribute_parallel_for_simd, SourceLocation(),
> -            SourceLocation(), CollapsedNum, NumClauses) {}
> +            llvm::omp::OMPD_target_teams_distribute_parallel_for_simd,
> +            SourceLocation(), SourceLocation(), CollapsedNum, NumClauses) {}
> 
> public:
>   /// Creates directive with a list of \a Clauses.
> @@ -4511,8 +4548,8 @@ class OMPTargetTeamsDistributeSimdDirective final : public OMPLoopDirective {
>                                         unsigned CollapsedNum,
>                                         unsigned NumClauses)
>       : OMPLoopDirective(this, OMPTargetTeamsDistributeSimdDirectiveClass,
> -                         OMPD_target_teams_distribute_simd, StartLoc, EndLoc,
> -                         CollapsedNum, NumClauses) {}
> +                         llvm::omp::OMPD_target_teams_distribute_simd, StartLoc,
> +                         EndLoc, CollapsedNum, NumClauses) {}
> 
>   /// Build an empty directive.
>   ///
> @@ -4522,8 +4559,9 @@ class OMPTargetTeamsDistributeSimdDirective final : public OMPLoopDirective {
>   explicit OMPTargetTeamsDistributeSimdDirective(unsigned CollapsedNum,
>                                                  unsigned NumClauses)
>       : OMPLoopDirective(this, OMPTargetTeamsDistributeSimdDirectiveClass,
> -                         OMPD_target_teams_distribute_simd, SourceLocation(),
> -                         SourceLocation(), CollapsedNum, NumClauses) {}
> +                         llvm::omp::OMPD_target_teams_distribute_simd,
> +                         SourceLocation(), SourceLocation(), CollapsedNum,
> +                         NumClauses) {}
> 
> public:
>   /// Creates directive with a list of \a Clauses.
> 
> diff  --git a/clang/include/clang/Basic/OpenMPKinds.def b/clang/include/clang/Basic/OpenMPKinds.def
> index 6ab35cafc7ed..7333d94e2cfc 100644
> --- a/clang/include/clang/Basic/OpenMPKinds.def
> +++ b/clang/include/clang/Basic/OpenMPKinds.def
> @@ -11,12 +11,6 @@
> ///
> //===----------------------------------------------------------------------===//
> 
> -#ifndef OPENMP_DIRECTIVE
> -#  define OPENMP_DIRECTIVE(Name)
> -#endif
> -#ifndef OPENMP_DIRECTIVE_EXT
> -#define OPENMP_DIRECTIVE_EXT(Name, Str)
> -#endif
> #ifndef OPENMP_CLAUSE
> #  define OPENMP_CLAUSE(Name, Class)
> #endif
> @@ -230,69 +224,6 @@ OPENMP_CONTEXT_SELECTOR_SET(device)
> OPENMP_CONTEXT_SELECTOR(vendor)
> OPENMP_CONTEXT_SELECTOR(kind)
> 
> -// OpenMP directives.
> -OPENMP_DIRECTIVE(threadprivate)
> -OPENMP_DIRECTIVE(parallel)
> -OPENMP_DIRECTIVE(task)
> -OPENMP_DIRECTIVE(simd)
> -OPENMP_DIRECTIVE(for)
> -OPENMP_DIRECTIVE(sections)
> -OPENMP_DIRECTIVE(section)
> -OPENMP_DIRECTIVE(single)
> -OPENMP_DIRECTIVE(master)
> -OPENMP_DIRECTIVE(critical)
> -OPENMP_DIRECTIVE(taskyield)
> -OPENMP_DIRECTIVE(barrier)
> -OPENMP_DIRECTIVE(taskwait)
> -OPENMP_DIRECTIVE(taskgroup)
> -OPENMP_DIRECTIVE(flush)
> -OPENMP_DIRECTIVE(ordered)
> -OPENMP_DIRECTIVE(atomic)
> -OPENMP_DIRECTIVE(target)
> -OPENMP_DIRECTIVE(teams)
> -OPENMP_DIRECTIVE(cancel)
> -OPENMP_DIRECTIVE(requires)
> -OPENMP_DIRECTIVE_EXT(target_data, "target data")
> -OPENMP_DIRECTIVE_EXT(target_enter_data, "target enter data")
> -OPENMP_DIRECTIVE_EXT(target_exit_data, "target exit data")
> -OPENMP_DIRECTIVE_EXT(target_parallel, "target parallel")
> -OPENMP_DIRECTIVE_EXT(target_parallel_for, "target parallel for")
> -OPENMP_DIRECTIVE_EXT(target_update, "target update")
> -OPENMP_DIRECTIVE_EXT(parallel_for, "parallel for")
> -OPENMP_DIRECTIVE_EXT(parallel_for_simd, "parallel for simd")
> -OPENMP_DIRECTIVE_EXT(parallel_master, "parallel master")
> -OPENMP_DIRECTIVE_EXT(parallel_sections, "parallel sections")
> -OPENMP_DIRECTIVE_EXT(for_simd, "for simd")
> -OPENMP_DIRECTIVE_EXT(cancellation_point, "cancellation point")
> -OPENMP_DIRECTIVE_EXT(declare_reduction, "declare reduction")
> -OPENMP_DIRECTIVE_EXT(declare_mapper, "declare mapper")
> -OPENMP_DIRECTIVE_EXT(declare_simd, "declare simd")
> -OPENMP_DIRECTIVE(taskloop)
> -OPENMP_DIRECTIVE_EXT(taskloop_simd, "taskloop simd")
> -OPENMP_DIRECTIVE(distribute)
> -OPENMP_DIRECTIVE_EXT(declare_target, "declare target")
> -OPENMP_DIRECTIVE_EXT(end_declare_target, "end declare target")
> -OPENMP_DIRECTIVE_EXT(distribute_parallel_for, "distribute parallel for")
> -OPENMP_DIRECTIVE_EXT(distribute_parallel_for_simd, "distribute parallel for simd")
> -OPENMP_DIRECTIVE_EXT(distribute_simd, "distribute simd")
> -OPENMP_DIRECTIVE_EXT(target_parallel_for_simd, "target parallel for simd")
> -OPENMP_DIRECTIVE_EXT(target_simd, "target simd")
> -OPENMP_DIRECTIVE_EXT(teams_distribute, "teams distribute")
> -OPENMP_DIRECTIVE_EXT(teams_distribute_simd, "teams distribute simd")
> -OPENMP_DIRECTIVE_EXT(teams_distribute_parallel_for_simd, "teams distribute parallel for simd")
> -OPENMP_DIRECTIVE_EXT(teams_distribute_parallel_for, "teams distribute parallel for")
> -OPENMP_DIRECTIVE_EXT(target_teams, "target teams")
> -OPENMP_DIRECTIVE_EXT(target_teams_distribute, "target teams distribute")
> -OPENMP_DIRECTIVE_EXT(target_teams_distribute_parallel_for, "target teams distribute parallel for")
> -OPENMP_DIRECTIVE_EXT(target_teams_distribute_parallel_for_simd, "target teams distribute parallel for simd")
> -OPENMP_DIRECTIVE_EXT(target_teams_distribute_simd, "target teams distribute simd")
> -OPENMP_DIRECTIVE(allocate)
> -OPENMP_DIRECTIVE_EXT(declare_variant, "declare variant")
> -OPENMP_DIRECTIVE_EXT(master_taskloop, "master taskloop")
> -OPENMP_DIRECTIVE_EXT(parallel_master_taskloop, "parallel master taskloop")
> -OPENMP_DIRECTIVE_EXT(master_taskloop_simd, "master taskloop simd")
> -OPENMP_DIRECTIVE_EXT(parallel_master_taskloop_simd, "parallel master taskloop simd")
> -
> // OpenMP clauses.
> OPENMP_CLAUSE(allocator, OMPAllocatorClause)
> OPENMP_CLAUSE(if, OMPIfClause)
> @@ -1137,8 +1068,6 @@ OPENMP_MATCH_KIND(implementation)
> #undef OPENMP_SCHEDULE_KIND
> #undef OPENMP_PROC_BIND_KIND
> #undef OPENMP_DEFAULT_KIND
> -#undef OPENMP_DIRECTIVE
> -#undef OPENMP_DIRECTIVE_EXT
> #undef OPENMP_CLAUSE
> #undef OPENMP_CRITICAL_CLAUSE
> #undef OPENMP_ORDERED_CLAUSE
> 
> diff  --git a/clang/include/clang/Basic/OpenMPKinds.h b/clang/include/clang/Basic/OpenMPKinds.h
> index 2621afe7afbb..543c1cd14907 100644
> --- a/clang/include/clang/Basic/OpenMPKinds.h
> +++ b/clang/include/clang/Basic/OpenMPKinds.h
> @@ -15,6 +15,7 @@
> #define LLVM_CLANG_BASIC_OPENMPKINDS_H
> 
> #include "llvm/ADT/StringRef.h"
> +#include "llvm/Frontend/OpenMP/OMPConstants.h"
> 
> namespace clang {
> 
> @@ -58,14 +59,7 @@ template <typename VectorType, typename ScoreT> struct OpenMPCtxSelectorData {
> };
> 
> /// OpenMP directives.
> -enum OpenMPDirectiveKind {
> -#define OPENMP_DIRECTIVE(Name) \
> -  OMPD_##Name,
> -#define OPENMP_DIRECTIVE_EXT(Name, Str) \
> -  OMPD_##Name,
> -#include "clang/Basic/OpenMPKinds.def"
> -  OMPD_unknown
> -};
> +using OpenMPDirectiveKind = llvm::omp::Directive;
> 
> /// OpenMP clauses.
> enum OpenMPClauseKind {
> @@ -208,9 +202,6 @@ struct OpenMPScheduleTy final {
>   OpenMPScheduleClauseModifier M2 = OMPC_SCHEDULE_MODIFIER_unknown;
> };
> 
> -OpenMPDirectiveKind getOpenMPDirectiveKind(llvm::StringRef Str);
> -const char *getOpenMPDirectiveName(OpenMPDirectiveKind Kind);
> -
> OpenMPClauseKind getOpenMPClauseKind(llvm::StringRef Str);
> const char *getOpenMPClauseName(OpenMPClauseKind Kind);
> 
> 
> diff  --git a/clang/lib/AST/CMakeLists.txt b/clang/lib/AST/CMakeLists.txt
> index 1ede58cc9ed6..bd9b0934591c 100644
> --- a/clang/lib/AST/CMakeLists.txt
> +++ b/clang/lib/AST/CMakeLists.txt
> @@ -1,6 +1,7 @@
> set(LLVM_LINK_COMPONENTS
>   BinaryFormat
>   Core
> +  FrontendOpenMP
>   Support
>   )
> 
> 
> diff  --git a/clang/lib/AST/OpenMPClause.cpp b/clang/lib/AST/OpenMPClause.cpp
> index fe1334469d48..7315d7c3cdbf 100644
> --- a/clang/lib/AST/OpenMPClause.cpp
> +++ b/clang/lib/AST/OpenMPClause.cpp
> @@ -1161,7 +1161,7 @@ OMPIsDevicePtrClause::CreateEmpty(const ASTContext &C,
> 
> void OMPClausePrinter::VisitOMPIfClause(OMPIfClause *Node) {
>   OS << "if(";
> -  if (Node->getNameModifier() != OMPD_unknown)
> +  if (Node->getNameModifier() != llvm::omp::OMPD_unknown)
>     OS << getOpenMPDirectiveName(Node->getNameModifier()) << ": ";
>   Node->getCondition()->printPretty(OS, nullptr, Policy, 0);
>   OS << ")";
> 
> diff  --git a/clang/lib/AST/StmtOpenMP.cpp b/clang/lib/AST/StmtOpenMP.cpp
> index 5b61e05aae87..da6d308ad15b 100644
> --- a/clang/lib/AST/StmtOpenMP.cpp
> +++ b/clang/lib/AST/StmtOpenMP.cpp
> @@ -15,6 +15,7 @@
> #include "clang/AST/ASTContext.h"
> 
> using namespace clang;
> +using namespace llvm::omp;
> 
> void OMPExecutableDirective::setClauses(ArrayRef<OMPClause *> Clauses) {
>   assert(Clauses.size() == getNumClauses() &&
> 
> diff  --git a/clang/lib/Basic/OpenMPKinds.cpp b/clang/lib/Basic/OpenMPKinds.cpp
> index c075deb01a18..51fe587de999 100644
> --- a/clang/lib/Basic/OpenMPKinds.cpp
> +++ b/clang/lib/Basic/OpenMPKinds.cpp
> @@ -18,6 +18,7 @@
> #include <cassert>
> 
> using namespace clang;
> +using namespace llvm::omp;
> 
> OpenMPContextSelectorSetKind
> clang::getOpenMPContextSelectorSet(llvm::StringRef Str) {
> @@ -62,31 +63,6 @@ clang::getOpenMPContextSelectorName(OpenMPContextSelectorKind Kind) {
>   llvm_unreachable("Invalid OpenMP context selector kind");
> }
> 
> -OpenMPDirectiveKind clang::getOpenMPDirectiveKind(StringRef Str) {
> -  return llvm::StringSwitch<OpenMPDirectiveKind>(Str)
> -#define OPENMP_DIRECTIVE(Name) .Case(#Name, OMPD_##Name)
> -#define OPENMP_DIRECTIVE_EXT(Name, Str) .Case(Str, OMPD_##Name)
> -#include "clang/Basic/OpenMPKinds.def"
> -      .Default(OMPD_unknown);
> -}
> -
> -const char *clang::getOpenMPDirectiveName(OpenMPDirectiveKind Kind) {
> -  assert(Kind <= OMPD_unknown);
> -  switch (Kind) {
> -  case OMPD_unknown:
> -    return "unknown";
> -#define OPENMP_DIRECTIVE(Name)                                                 \
> -  case OMPD_##Name:                                                            \
> -    return #Name;
> -#define OPENMP_DIRECTIVE_EXT(Name, Str)                                        \
> -  case OMPD_##Name:                                                            \
> -    return Str;
> -#include "clang/Basic/OpenMPKinds.def"
> -    break;
> -  }
> -  llvm_unreachable("Invalid OpenMP directive kind");
> -}
> -
> OpenMPClauseKind clang::getOpenMPClauseKind(StringRef Str) {
>   // 'flush' clause cannot be specified explicitly, because this is an implicit
>   // clause for 'flush' directive. If the 'flush' clause is explicitly specified
> @@ -449,7 +425,7 @@ const char *clang::getOpenMPSimpleClauseTypeName(OpenMPClauseKind Kind,
> bool clang::isAllowedClauseForDirective(OpenMPDirectiveKind DKind,
>                                         OpenMPClauseKind CKind,
>                                         unsigned OpenMPVersion) {
> -  assert(DKind <= OMPD_unknown);
> +  assert(unsigned(DKind) <= unsigned(OMPD_unknown));
>   assert(CKind <= OMPC_unknown);
>   switch (DKind) {
>   case OMPD_parallel:
> 
> diff  --git a/clang/lib/CodeGen/CGOpenMPRuntime.cpp b/clang/lib/CodeGen/CGOpenMPRuntime.cpp
> index a53808782039..fda8dbe14db6 100644
> --- a/clang/lib/CodeGen/CGOpenMPRuntime.cpp
> +++ b/clang/lib/CodeGen/CGOpenMPRuntime.cpp
> @@ -32,6 +32,7 @@
> 
> using namespace clang;
> using namespace CodeGen;
> +using namespace llvm::omp;
> 
> namespace {
> /// Base class for handling code generation inside OpenMP regions.
> 
> diff  --git a/clang/lib/CodeGen/CGOpenMPRuntimeNVPTX.cpp b/clang/lib/CodeGen/CGOpenMPRuntimeNVPTX.cpp
> index 800940b9ef30..b98e6dee5f75 100644
> --- a/clang/lib/CodeGen/CGOpenMPRuntimeNVPTX.cpp
> +++ b/clang/lib/CodeGen/CGOpenMPRuntimeNVPTX.cpp
> @@ -22,6 +22,7 @@
> 
> using namespace clang;
> using namespace CodeGen;
> +using namespace llvm::omp;
> 
> namespace {
> enum OpenMPRTLFunctionNVPTX {
> 
> diff  --git a/clang/lib/CodeGen/CGStmtOpenMP.cpp b/clang/lib/CodeGen/CGStmtOpenMP.cpp
> index 8369fc236df4..e23abdd385fe 100644
> --- a/clang/lib/CodeGen/CGStmtOpenMP.cpp
> +++ b/clang/lib/CodeGen/CGStmtOpenMP.cpp
> @@ -23,6 +23,7 @@
> #include "clang/Basic/PrettyStackTrace.h"
> using namespace clang;
> using namespace CodeGen;
> +using namespace llvm::omp;
> 
> namespace {
> /// Lexical scope for OpenMP executable constructs, that handles correct codegen
> 
> diff  --git a/clang/lib/CodeGen/CodeGenFunction.h b/clang/lib/CodeGen/CodeGenFunction.h
> index a46a25248bdd..0aff6667840d 100644
> --- a/clang/lib/CodeGen/CodeGenFunction.h
> +++ b/clang/lib/CodeGen/CodeGenFunction.h
> @@ -1276,7 +1276,7 @@ class CodeGenFunction : public CodeGenTypeCache {
>       CancelExit(OpenMPDirectiveKind Kind, JumpDest ExitBlock,
>                  JumpDest ContBlock)
>           : Kind(Kind), ExitBlock(ExitBlock), ContBlock(ContBlock) {}
> -      OpenMPDirectiveKind Kind = OMPD_unknown;
> +      OpenMPDirectiveKind Kind = llvm::omp::OMPD_unknown;
>       /// true if the exit block has been emitted already by the special
>       /// emitExit() call, false if the default codegen is used.
>       bool HasBeenEmitted = false;
> 
> diff  --git a/clang/lib/Parse/CMakeLists.txt b/clang/lib/Parse/CMakeLists.txt
> index b868696eb6bb..3f7ab2a74af2 100644
> --- a/clang/lib/Parse/CMakeLists.txt
> +++ b/clang/lib/Parse/CMakeLists.txt
> @@ -1,4 +1,5 @@
> set(LLVM_LINK_COMPONENTS
> +  FrontendOpenMP
>   MC
>   MCParser
>   Support
> 
> diff  --git a/clang/lib/Parse/ParseOpenMP.cpp b/clang/lib/Parse/ParseOpenMP.cpp
> index d25058e17ff5..89f7f909b379 100644
> --- a/clang/lib/Parse/ParseOpenMP.cpp
> +++ b/clang/lib/Parse/ParseOpenMP.cpp
> @@ -20,6 +20,7 @@
> #include "llvm/ADT/UniqueVector.h"
> 
> using namespace clang;
> +using namespace llvm::omp;
> 
> //===----------------------------------------------------------------------===//
> // OpenMP declarative directives.
> @@ -27,7 +28,7 @@ using namespace clang;
> 
> namespace {
> enum OpenMPDirectiveKindEx {
> -  OMPD_cancellation = OMPD_unknown + 1,
> +  OMPD_cancellation = unsigned(OMPD_unknown) + 1,
>   OMPD_data,
>   OMPD_declare,
>   OMPD_end,
> @@ -46,6 +47,20 @@ enum OpenMPDirectiveKindEx {
>   OMPD_variant,
> };
> 
> +// Helper to unify the enum class OpenMPDirectiveKind with its extension
> +// the OpenMPDirectiveKindEx enum which allows to use them together as if they
> +// are unsigned values.
> +struct OpenMPDirectiveKindExWrapper {
> +  OpenMPDirectiveKindExWrapper(unsigned Value) : Value(Value) {}
> +  OpenMPDirectiveKindExWrapper(OpenMPDirectiveKind DK) : Value(unsigned(DK)) {}
> +  bool operator==(OpenMPDirectiveKind V) const { return Value == unsigned(V); }
> +  bool operator!=(OpenMPDirectiveKind V) const { return Value != unsigned(V); }
> +  bool operator<(OpenMPDirectiveKind V) const { return Value < unsigned(V); }
> +  operator unsigned() const { return Value; }
> +  operator OpenMPDirectiveKind() const { return OpenMPDirectiveKind(Value); }
> +  unsigned Value;
> +};
> +
> class DeclDirectiveListParserHelper final {
>   SmallVector<Expr *, 4> Identifiers;
>   Parser *P;
> @@ -67,11 +82,11 @@ class DeclDirectiveListParserHelper final {
> // Map token string to extended OMP token kind that are
> // OpenMPDirectiveKind + OpenMPDirectiveKindEx.
> static unsigned getOpenMPDirectiveKindEx(StringRef S) {
> -  auto DKind = getOpenMPDirectiveKind(S);
> +  OpenMPDirectiveKindExWrapper DKind = getOpenMPDirectiveKind(S);
>   if (DKind != OMPD_unknown)
>     return DKind;
> 
> -  return llvm::StringSwitch<unsigned>(S)
> +  return llvm::StringSwitch<OpenMPDirectiveKindExWrapper>(S)
>       .Case("cancellation", OMPD_cancellation)
>       .Case("data", OMPD_data)
>       .Case("declare", OMPD_declare)
> @@ -86,11 +101,11 @@ static unsigned getOpenMPDirectiveKindEx(StringRef S) {
>       .Default(OMPD_unknown);
> }
> 
> -static OpenMPDirectiveKind parseOpenMPDirectiveKind(Parser &P) {
> +static OpenMPDirectiveKindExWrapper parseOpenMPDirectiveKind(Parser &P) {
>   // Array of foldings: F[i][0] F[i][1] ===> F[i][2].
>   // E.g.: OMPD_for OMPD_simd ===> OMPD_for_simd
>   // TODO: add other combined directives in topological order.
> -  static const unsigned F[][3] = {
> +  static const OpenMPDirectiveKindExWrapper F[][3] = {
>       {OMPD_cancellation, OMPD_point, OMPD_cancellation_point},
>       {OMPD_declare, OMPD_reduction, OMPD_declare_reduction},
>       {OMPD_declare, OMPD_mapper, OMPD_declare_mapper},
> @@ -144,7 +159,7 @@ static OpenMPDirectiveKind parseOpenMPDirectiveKind(Parser &P) {
>        OMPD_parallel_master_taskloop_simd}};
>   enum { CancellationPoint = 0, DeclareReduction = 1, TargetData = 2 };
>   Token Tok = P.getCurToken();
> -  unsigned DKind =
> +  OpenMPDirectiveKindExWrapper DKind =
>       Tok.isAnnotation()
>           ? static_cast<unsigned>(OMPD_unknown)
>           : getOpenMPDirectiveKindEx(P.getPreprocessor().getSpelling(Tok));
> @@ -156,7 +171,7 @@ static OpenMPDirectiveKind parseOpenMPDirectiveKind(Parser &P) {
>       continue;
> 
>     Tok = P.getPreprocessor().LookAhead(0);
> -    unsigned SDKind =
> +    OpenMPDirectiveKindExWrapper SDKind =
>         Tok.isAnnotation()
>             ? static_cast<unsigned>(OMPD_unknown)
>             : getOpenMPDirectiveKindEx(P.getPreprocessor().getSpelling(Tok));
> @@ -238,8 +253,9 @@ Parser::DeclGroupPtrTy
> Parser::ParseOpenMPDeclareReductionDirective(AccessSpecifier AS) {
>   // Parse '('.
>   BalancedDelimiterTracker T(*this, tok::l_paren, tok::annot_pragma_openmp_end);
> -  if (T.expectAndConsume(diag::err_expected_lparen_after,
> -                         getOpenMPDirectiveName(OMPD_declare_reduction))) {
> +  if (T.expectAndConsume(
> +          diag::err_expected_lparen_after,
> +          getOpenMPDirectiveName(OMPD_declare_reduction).data())) {
>     SkipUntil(tok::annot_pragma_openmp_end, StopBeforeMatch);
>     return DeclGroupPtrTy();
>   }
> @@ -491,7 +507,7 @@ Parser::ParseOpenMPDeclareMapperDirective(AccessSpecifier AS) {
>   // Parse '('
>   BalancedDelimiterTracker T(*this, tok::l_paren, tok::annot_pragma_openmp_end);
>   if (T.expectAndConsume(diag::err_expected_lparen_after,
> -                         getOpenMPDirectiveName(OMPD_declare_mapper))) {
> +                         getOpenMPDirectiveName(OMPD_declare_mapper).data())) {
>     SkipUntil(tok::annot_pragma_openmp_end, StopBeforeMatch);
>     return DeclGroupPtrTy();
>   }
> @@ -1956,7 +1972,7 @@ bool Parser::ParseOpenMPSimpleVarList(
>   // Parse '('.
>   BalancedDelimiterTracker T(*this, tok::l_paren, tok::annot_pragma_openmp_end);
>   if (T.expectAndConsume(diag::err_expected_lparen_after,
> -                         getOpenMPDirectiveName(Kind)))
> +                         getOpenMPDirectiveName(Kind).data()))
>     return true;
>   bool IsCorrect = true;
>   bool NoIdentIsFound = true;
> @@ -2428,15 +2444,16 @@ OMPClause *Parser::ParseOpenMPSingleExprWithArgClause(OpenMPClauseKind Kind,
>     assert(Kind == OMPC_if);
>     KLoc.push_back(Tok.getLocation());
>     TentativeParsingAction TPA(*this);
> -    Arg.push_back(parseOpenMPDirectiveKind(*this));
> -    if (Arg.back() != OMPD_unknown) {
> +    auto DK = parseOpenMPDirectiveKind(*this);
> +    Arg.push_back(DK);
> +    if (DK != OMPD_unknown) {
>       ConsumeToken();
>       if (Tok.is(tok::colon) && getLangOpts().OpenMP > 40) {
>         TPA.Commit();
>         DelimLoc = ConsumeToken();
>       } else {
>         TPA.Revert();
> -        Arg.back() = OMPD_unknown;
> +        Arg.back() = unsigned(OMPD_unknown);
>       }
>     } else {
>       TPA.Revert();
> 
> diff  --git a/clang/lib/Sema/CMakeLists.txt b/clang/lib/Sema/CMakeLists.txt
> index 89c3f6c47b49..844abc7ce598 100644
> --- a/clang/lib/Sema/CMakeLists.txt
> +++ b/clang/lib/Sema/CMakeLists.txt
> @@ -1,4 +1,5 @@
> set(LLVM_LINK_COMPONENTS
> +  FrontendOpenMP
>   Support
>   )
> 
> 
> diff  --git a/clang/lib/Sema/SemaOpenMP.cpp b/clang/lib/Sema/SemaOpenMP.cpp
> index baf2db810dcd..0783bb713592 100644
> --- a/clang/lib/Sema/SemaOpenMP.cpp
> +++ b/clang/lib/Sema/SemaOpenMP.cpp
> @@ -28,8 +28,11 @@
> #include "clang/Sema/Scope.h"
> #include "clang/Sema/ScopeInfo.h"
> #include "clang/Sema/SemaInternal.h"
> +#include "llvm/ADT/IndexedMap.h"
> #include "llvm/ADT/PointerEmbeddedInt.h"
> +#include "llvm/Frontend/OpenMP/OMPConstants.h"
> using namespace clang;
> +using namespace llvm::omp;
> 
> //===----------------------------------------------------------------------===//
> // Stack of data-sharing attributes for variables
> @@ -4152,13 +4155,17 @@ static bool checkNestingOfRegions(Sema &SemaRef, const DSAStackTy *Stack,
>   return false;
> }
> 
> +struct Kind2Unsigned {
> +  using argument_type = OpenMPDirectiveKind;
> +  unsigned operator()(argument_type DK) { return unsigned(DK); }
> +};
> static bool checkIfClauses(Sema &S, OpenMPDirectiveKind Kind,
>                            ArrayRef<OMPClause *> Clauses,
>                            ArrayRef<OpenMPDirectiveKind> AllowedNameModifiers) {
>   bool ErrorFound = false;
>   unsigned NamedModifiersNumber = 0;
> -  SmallVector<const OMPIfClause *, OMPC_unknown + 1> FoundNameModifiers(
> -      OMPD_unknown + 1);
> +  llvm::IndexedMap<const OMPIfClause *, Kind2Unsigned> FoundNameModifiers;
> +  FoundNameModifiers.resize(unsigned(OMPD_unknown) + 1);
>   SmallVector<SourceLocation, 4> NameModifierLoc;
>   for (const OMPClause *C : Clauses) {
>     if (const auto *IC = dyn_cast_or_null<OMPIfClause>(C)) {
> 
> diff  --git a/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp b/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
> index fb19579cca1b..e9456ebda581 100644
> --- a/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
> +++ b/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
> @@ -3188,7 +3188,8 @@ TemplateDeclInstantiator::VisitOMPDeclareMapperDecl(OMPDeclareMapperDecl *D) {
>   } else {
>     // Instantiate the mapper variable.
>     DeclarationNameInfo DirName;
> -    SemaRef.StartOpenMPDSABlock(OMPD_declare_mapper, DirName, /*S=*/nullptr,
> +    SemaRef.StartOpenMPDSABlock(llvm::omp::OMPD_declare_mapper, DirName,
> +                                /*S=*/nullptr,
>                                 (*D->clauselist_begin())->getBeginLoc());
>     SemaRef.ActOnOpenMPDeclareMapperDirectiveVarDecl(
>         NewDMD, /*S=*/nullptr, SubstMapperTy, D->getLocation(), VN);
> 
> diff  --git a/clang/lib/Sema/TreeTransform.h b/clang/lib/Sema/TreeTransform.h
> index c22b44a7b91d..ade0e6a0c4ce 100644
> --- a/clang/lib/Sema/TreeTransform.h
> +++ b/clang/lib/Sema/TreeTransform.h
> @@ -37,6 +37,8 @@
> #include "llvm/Support/ErrorHandling.h"
> #include <algorithm>
> 
> +using namespace llvm::omp;
> +
> namespace clang {
> using namespace sema;
> 
> 
> diff  --git a/clang/lib/Serialization/ASTWriter.cpp b/clang/lib/Serialization/ASTWriter.cpp
> index 4c186629b59b..e3458c48b14d 100644
> --- a/clang/lib/Serialization/ASTWriter.cpp
> +++ b/clang/lib/Serialization/ASTWriter.cpp
> @@ -6622,7 +6622,7 @@ void OMPClauseWriter::writeClause(OMPClause *C) {
> }
> 
> void OMPClauseWriter::VisitOMPClauseWithPreInit(OMPClauseWithPreInit *C) {
> -  Record.push_back(C->getCaptureRegion());
> +  Record.push_back(uint64_t(C->getCaptureRegion()));
>   Record.AddStmt(C->getPreInitStmt());
> }
> 
> @@ -6633,7 +6633,7 @@ void OMPClauseWriter::VisitOMPClauseWithPostUpdate(OMPClauseWithPostUpdate *C) {
> 
> void OMPClauseWriter::VisitOMPIfClause(OMPIfClause *C) {
>   VisitOMPClauseWithPreInit(C);
> -  Record.push_back(C->getNameModifier());
> +  Record.push_back(uint64_t(C->getNameModifier()));
>   Record.AddSourceLocation(C->getNameModifierLoc());
>   Record.AddSourceLocation(C->getColonLoc());
>   Record.AddStmt(C->getCondition());
> 
> diff  --git a/clang/lib/Serialization/ASTWriterStmt.cpp b/clang/lib/Serialization/ASTWriterStmt.cpp
> index 1e801d02afc3..a5e90359103e 100644
> --- a/clang/lib/Serialization/ASTWriterStmt.cpp
> +++ b/clang/lib/Serialization/ASTWriterStmt.cpp
> @@ -2255,7 +2255,7 @@ void ASTStmtWriter::VisitOMPCancellationPointDirective(
>     OMPCancellationPointDirective *D) {
>   VisitStmt(D);
>   VisitOMPExecutableDirective(D);
> -  Record.push_back(D->getCancelRegion());
> +  Record.push_back(uint64_t(D->getCancelRegion()));
>   Code = serialization::STMT_OMP_CANCELLATION_POINT_DIRECTIVE;
> }
> 
> @@ -2263,7 +2263,7 @@ void ASTStmtWriter::VisitOMPCancelDirective(OMPCancelDirective *D) {
>   VisitStmt(D);
>   Record.push_back(D->getNumClauses());
>   VisitOMPExecutableDirective(D);
> -  Record.push_back(D->getCancelRegion());
> +  Record.push_back(uint64_t(D->getCancelRegion()));
>   Code = serialization::STMT_OMP_CANCEL_DIRECTIVE;
> }
> 
> 
> diff  --git a/llvm/include/llvm/Frontend/OpenMP/OMPConstants.h b/llvm/include/llvm/Frontend/OpenMP/OMPConstants.h
> new file mode 100644
> index 000000000000..42b19091c14d
> --- /dev/null
> +++ b/llvm/include/llvm/Frontend/OpenMP/OMPConstants.h
> @@ -0,0 +1,46 @@
> +//===- OMPConstants.h - OpenMP related constants and helpers ------ C++ -*-===//
> +//
> +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
> +// See https://llvm.org/LICENSE.txt for license information.
> +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
> +//
> +//===----------------------------------------------------------------------===//
> +/// \file
> +///
> +/// This file defines constans and helpers used when dealing with OpenMP.
> +///
> +//===----------------------------------------------------------------------===//
> +
> +#ifndef LLVM_OPENMP_CONSTANTS_H
> +#define LLVM_OPENMP_CONSTANTS_H
> +
> +#include "llvm/ADT/StringRef.h"
> +
> +namespace llvm {
> +
> +namespace omp {
> +
> +/// IDs for all OpenMP directives.
> +enum class Directive {
> +#define OMP_DIRECTIVE(Enum, ...) Enum,
> +#include "llvm/Frontend/OpenMP/OMPKinds.def"
> +};
> +
> +/// Make the enum values available in the llvm::omp namespace. This allows us to
> +/// write something like OMPD_parallel if we have a `using namespace omp`. At
> +/// the same time we do not loose the strong type guarantees of the enum class,
> +/// that is we cannot pass an unsigned as Directive without an explicit cast.
> +#define OMP_DIRECTIVE(Enum, ...) constexpr auto Enum = omp::Directive::Enum;
> +#include "llvm/Frontend/OpenMP/OMPKinds.def"
> +
> +/// Parse \p Str and return the directive it matches or OMPD_unknown if none.
> +Directive getOpenMPDirectiveKind(StringRef Str);
> +
> +/// Return a textual representation of the directive \p D.
> +StringRef getOpenMPDirectiveName(Directive D);
> +
> +} // end namespace omp
> +
> +} // end namespace llvm
> +
> +#endif // LLVM_OPENMP_CONSTANTS_H
> 
> diff  --git a/llvm/include/llvm/Frontend/OpenMP/OMPKinds.def b/llvm/include/llvm/Frontend/OpenMP/OMPKinds.def
> new file mode 100644
> index 000000000000..fc84ffb578c5
> --- /dev/null
> +++ b/llvm/include/llvm/Frontend/OpenMP/OMPKinds.def
> @@ -0,0 +1,102 @@
> +//===--- OMPKinds.def - OpenMP directives, clauses, rt-calls -*- C++ -*-===//
> +//
> +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
> +// See https://llvm.org/LICENSE.txt for license information.
> +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
> +//
> +//===----------------------------------------------------------------------===//
> +/// \file
> +///
> +/// This file defines the list of supported OpenMP directives, clauses, runtime
> +/// calls, and other things that need to be listed in enums.
> +///
> +//===----------------------------------------------------------------------===//
> +
> +/// OpenMP Directives and combined directives
> +///
> +///{
> +
> +#ifndef OMP_DIRECTIVE
> +#define OMP_DIRECTIVE(Enum, Str)
> +#endif
> +
> +#define __OMP_DIRECTIVE_EXT(Name, Str) OMP_DIRECTIVE(OMPD_##Name, Str)
> +#define __OMP_DIRECTIVE(Name) __OMP_DIRECTIVE_EXT(Name, #Name)
> +
> +__OMP_DIRECTIVE(threadprivate)
> +__OMP_DIRECTIVE(parallel)
> +__OMP_DIRECTIVE(task)
> +__OMP_DIRECTIVE(simd)
> +__OMP_DIRECTIVE(for)
> +__OMP_DIRECTIVE(sections)
> +__OMP_DIRECTIVE(section)
> +__OMP_DIRECTIVE(single)
> +__OMP_DIRECTIVE(master)
> +__OMP_DIRECTIVE(critical)
> +__OMP_DIRECTIVE(taskyield)
> +__OMP_DIRECTIVE(barrier)
> +__OMP_DIRECTIVE(taskwait)
> +__OMP_DIRECTIVE(taskgroup)
> +__OMP_DIRECTIVE(flush)
> +__OMP_DIRECTIVE(ordered)
> +__OMP_DIRECTIVE(atomic)
> +__OMP_DIRECTIVE(target)
> +__OMP_DIRECTIVE(teams)
> +__OMP_DIRECTIVE(cancel)
> +__OMP_DIRECTIVE(requires)
> +__OMP_DIRECTIVE_EXT(target_data, "target data")
> +__OMP_DIRECTIVE_EXT(target_enter_data, "target enter data")
> +__OMP_DIRECTIVE_EXT(target_exit_data, "target exit data")
> +__OMP_DIRECTIVE_EXT(target_parallel, "target parallel")
> +__OMP_DIRECTIVE_EXT(target_parallel_for, "target parallel for")
> +__OMP_DIRECTIVE_EXT(target_update, "target update")
> +__OMP_DIRECTIVE_EXT(parallel_for, "parallel for")
> +__OMP_DIRECTIVE_EXT(parallel_for_simd, "parallel for simd")
> +__OMP_DIRECTIVE_EXT(parallel_master, "parallel master")
> +__OMP_DIRECTIVE_EXT(parallel_sections, "parallel sections")
> +__OMP_DIRECTIVE_EXT(for_simd, "for simd")
> +__OMP_DIRECTIVE_EXT(cancellation_point, "cancellation point")
> +__OMP_DIRECTIVE_EXT(declare_reduction, "declare reduction")
> +__OMP_DIRECTIVE_EXT(declare_mapper, "declare mapper")
> +__OMP_DIRECTIVE_EXT(declare_simd, "declare simd")
> +__OMP_DIRECTIVE(taskloop)
> +__OMP_DIRECTIVE_EXT(taskloop_simd, "taskloop simd")
> +__OMP_DIRECTIVE(distribute)
> +__OMP_DIRECTIVE_EXT(declare_target, "declare target")
> +__OMP_DIRECTIVE_EXT(end_declare_target, "end declare target")
> +__OMP_DIRECTIVE_EXT(distribute_parallel_for, "distribute parallel for")
> +__OMP_DIRECTIVE_EXT(distribute_parallel_for_simd,
> +                    "distribute parallel for simd")
> +__OMP_DIRECTIVE_EXT(distribute_simd, "distribute simd")
> +__OMP_DIRECTIVE_EXT(target_parallel_for_simd, "target parallel for simd")
> +__OMP_DIRECTIVE_EXT(target_simd, "target simd")
> +__OMP_DIRECTIVE_EXT(teams_distribute, "teams distribute")
> +__OMP_DIRECTIVE_EXT(teams_distribute_simd, "teams distribute simd")
> +__OMP_DIRECTIVE_EXT(teams_distribute_parallel_for_simd,
> +                    "teams distribute parallel for simd")
> +__OMP_DIRECTIVE_EXT(teams_distribute_parallel_for,
> +                    "teams distribute parallel for")
> +__OMP_DIRECTIVE_EXT(target_teams, "target teams")
> +__OMP_DIRECTIVE_EXT(target_teams_distribute, "target teams distribute")
> +__OMP_DIRECTIVE_EXT(target_teams_distribute_parallel_for,
> +                    "target teams distribute parallel for")
> +__OMP_DIRECTIVE_EXT(target_teams_distribute_parallel_for_simd,
> +                    "target teams distribute parallel for simd")
> +__OMP_DIRECTIVE_EXT(target_teams_distribute_simd,
> +                    "target teams distribute simd")
> +__OMP_DIRECTIVE(allocate)
> +__OMP_DIRECTIVE_EXT(declare_variant, "declare variant")
> +__OMP_DIRECTIVE_EXT(master_taskloop, "master taskloop")
> +__OMP_DIRECTIVE_EXT(parallel_master_taskloop, "parallel master taskloop")
> +__OMP_DIRECTIVE_EXT(master_taskloop_simd, "master taskloop simd")
> +__OMP_DIRECTIVE_EXT(parallel_master_taskloop_simd,
> +                    "parallel master taskloop simd")
> +
> +// Has to be the last because Clang implicitly expects it to be.
> +__OMP_DIRECTIVE(unknown)
> +
> +#undef __OMP_DIRECTIVE_EXT
> +#undef __OMP_DIRECTIVE
> +#undef OMP_DIRECTIVE
> +
> +///}
> 
> diff  --git a/llvm/lib/CMakeLists.txt b/llvm/lib/CMakeLists.txt
> index 5a41d65b0cf3..f7e08a68e673 100644
> --- a/llvm/lib/CMakeLists.txt
> +++ b/llvm/lib/CMakeLists.txt
> @@ -8,6 +8,7 @@ add_subdirectory(CodeGen)
> add_subdirectory(BinaryFormat)
> add_subdirectory(Bitcode)
> add_subdirectory(Bitstream)
> +add_subdirectory(Frontend)
> add_subdirectory(Transforms)
> add_subdirectory(Linker)
> add_subdirectory(Analysis)
> 
> diff  --git a/llvm/lib/Frontend/CMakeLists.txt b/llvm/lib/Frontend/CMakeLists.txt
> new file mode 100644
> index 000000000000..9730c8414edf
> --- /dev/null
> +++ b/llvm/lib/Frontend/CMakeLists.txt
> @@ -0,0 +1 @@
> +add_subdirectory(OpenMP)
> 
> diff  --git a/llvm/lib/Frontend/LLVMBuild.txt b/llvm/lib/Frontend/LLVMBuild.txt
> new file mode 100644
> index 000000000000..78ec6ae5186c
> --- /dev/null
> +++ b/llvm/lib/Frontend/LLVMBuild.txt
> @@ -0,0 +1,23 @@
> +;===- ./lib/Frontend/LLVMBuild.txt -----------------------------*- Conf -*--===;
> +;
> +; Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
> +; See https://llvm.org/LICENSE.txt for license information.
> +; SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
> +;
> +;===------------------------------------------------------------------------===;
> +;
> +; This is an LLVMBuild description file for the components in this subdirectory.
> +;
> +; For more information on the LLVMBuild system, please see:
> +;
> +;   http://llvm.org/docs/LLVMBuild.html
> +;
> +;===------------------------------------------------------------------------===;
> +
> +[common]
> +subdirectories = OpenMP
> +
> +[component_0]
> +type = Group
> +name = Frontend
> +parent = Libraries
> 
> diff  --git a/llvm/lib/Frontend/OpenMP/CMakeLists.txt b/llvm/lib/Frontend/OpenMP/CMakeLists.txt
> new file mode 100644
> index 000000000000..5d74bcf3b9fc
> --- /dev/null
> +++ b/llvm/lib/Frontend/OpenMP/CMakeLists.txt
> @@ -0,0 +1,10 @@
> +add_llvm_component_library(LLVMFrontendOpenMP
> +  OMPConstants.cpp
> +
> +  ADDITIONAL_HEADER_DIRS
> +  ${LLVM_MAIN_INCLUDE_DIR}/llvm/Frontend
> +  ${LLVM_MAIN_INCLUDE_DIR}/llvm/Frontend/OpenMP
> +
> +  DEPENDS
> +  intrinsics_gen
> +  )
> 
> diff  --git a/llvm/lib/Frontend/OpenMP/LLVMBuild.txt b/llvm/lib/Frontend/OpenMP/LLVMBuild.txt
> new file mode 100644
> index 000000000000..dfabe72fcd2f
> --- /dev/null
> +++ b/llvm/lib/Frontend/OpenMP/LLVMBuild.txt
> @@ -0,0 +1,21 @@
> +;===- ./lib/Frontend/OpenMP/LLVMBuild.txt ----------------------*- Conf -*--===;
> +;
> +; Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
> +; See https://llvm.org/LICENSE.txt for license information.
> +; SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
> +;
> +;===------------------------------------------------------------------------===;
> +;
> +; This is an LLVMBuild description file for the components in this subdirectory.
> +;
> +; For more information on the LLVMBuild system, please see:
> +;
> +;   http://llvm.org/docs/LLVMBuild.html
> +;
> +;===------------------------------------------------------------------------===;
> +
> +[component_0]
> +type = Library
> +name = FrontendOpenMP
> +parent = Frontend
> +required_libraries = Core Support TransformUtils
> 
> diff  --git a/llvm/lib/Frontend/OpenMP/OMPConstants.cpp b/llvm/lib/Frontend/OpenMP/OMPConstants.cpp
> new file mode 100644
> index 000000000000..994fb4e2fa84
> --- /dev/null
> +++ b/llvm/lib/Frontend/OpenMP/OMPConstants.cpp
> @@ -0,0 +1,34 @@
> +//===- OMPConstants.cpp - Helpers related to OpenMP code generation ---===//
> +//
> +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
> +// See https://llvm.org/LICENSE.txt for license information.
> +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
> +//
> +//===----------------------------------------------------------------------===//
> +//
> +//===----------------------------------------------------------------------===//
> +
> +#include "llvm/Frontend/OpenMP/OMPConstants.h"
> +
> +#include "llvm/ADT/StringRef.h"
> +#include "llvm/ADT/StringSwitch.h"
> +
> +using namespace llvm;
> +using namespace omp;
> +
> +Directive llvm::omp::getOpenMPDirectiveKind(StringRef Str) {
> +  return llvm::StringSwitch<Directive>(Str)
> +#define OMP_DIRECTIVE(Enum, Str) .Case(Str, Enum)
> +#include "llvm/Frontend/OpenMP/OMPKinds.def"
> +      .Default(OMPD_unknown);
> +}
> +
> +StringRef llvm::omp::getOpenMPDirectiveName(Directive Kind) {
> +  switch (Kind) {
> +#define OMP_DIRECTIVE(Enum, Str)                                               \
> +  case Enum:                                                                   \
> +    return Str;
> +#include "llvm/Frontend/OpenMP/OMPKinds.def"
> +  }
> +  llvm_unreachable("Invalid OpenMP directive kind");
> +}
> 
> diff  --git a/llvm/lib/LLVMBuild.txt b/llvm/lib/LLVMBuild.txt
> index 4c039176267c..3f5383d9b1f1 100644
> --- a/llvm/lib/LLVMBuild.txt
> +++ b/llvm/lib/LLVMBuild.txt
> @@ -24,6 +24,7 @@ subdirectories =
>  DebugInfo
>  Demangle
>  ExecutionEngine
> + Frontend
>  FuzzMutate
>  LineEditor
>  Linker
> 
> 
> 
> _______________________________________________
> llvm-commits mailing list
> llvm-commits at lists.llvm.org
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