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

Roman Tereshin via llvm-commits llvm-commits at lists.llvm.org
Tue Dec 17 17:06:16 PST 2019


Ooops, just noticed the other thread, https://github.com/llvm/llvm-project/commit/d23c61490c282a7a8f29aaa5c021cbfdaf87fb6f <https://github.com/llvm/llvm-project/commit/d23c61490c282a7a8f29aaa5c021cbfdaf87fb6f> does solve the problem, thank you, no worries, cheers!

> On Dec 17, 2019, at 4:55 PM, Roman Tereshin <rtereshin at apple.com> wrote:
> 
> 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 <mailto: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 <https://github.com/llvm/llvm-project/commit/eb3e81f43f019cd90da87169aeff0eaddc4c9ecb>
>> DIFF: 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 <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 <http://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 <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 <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 <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 <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 <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 <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 <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 <mailto:llvm-commits at lists.llvm.org>
>> https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-commits
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