[clang] [llvm] [OpenMP][Offload] Add support for dyn_groupprivate clause (PR #152651)

Kevin Sala Penades via llvm-commits llvm-commits at lists.llvm.org
Fri Aug 8 18:34:50 PDT 2025


https://github.com/kevinsala updated https://github.com/llvm/llvm-project/pull/152651

>From 099c502bdf02ed9bc34bbfc70a6e786746ecee90 Mon Sep 17 00:00:00 2001
From: Kevin Sala <salapenades1 at llnl.gov>
Date: Fri, 8 Aug 2025 10:43:52 -0700
Subject: [PATCH] [OpenMP] Add parser/semantic support for dyn_groupprivate
 clause

---
 clang/include/clang/AST/OpenMPClause.h        | 155 ++++++++++++++++++
 clang/include/clang/AST/RecursiveASTVisitor.h |   8 +
 .../clang/Basic/DiagnosticSemaKinds.td        |   3 +
 clang/include/clang/Basic/OpenMPKinds.def     |   9 +
 clang/include/clang/Basic/OpenMPKinds.h       |  10 ++
 clang/include/clang/Sema/SemaOpenMP.h         |   7 +
 clang/lib/AST/OpenMPClause.cpp                |  21 +++
 clang/lib/AST/StmtProfile.cpp                 |   6 +
 clang/lib/Basic/OpenMPKinds.cpp               |  17 ++
 clang/lib/Parse/ParseOpenMP.cpp               |  47 +++++-
 clang/lib/Sema/SemaOpenMP.cpp                 |  73 ++++++++-
 clang/lib/Sema/TreeTransform.h                |  26 +++
 clang/lib/Serialization/ASTReader.cpp         |  16 ++
 clang/lib/Serialization/ASTWriter.cpp         |  11 ++
 .../target_dyn_groupprivate_messages.cpp      |  87 ++++++++++
 ...target_teams_dyn_groupprivate_messages.cpp |  87 ++++++++++
 clang/tools/libclang/CIndex.cpp               |   5 +
 llvm/include/llvm/Frontend/OpenMP/OMP.td      |  25 +++
 18 files changed, 605 insertions(+), 8 deletions(-)
 create mode 100644 clang/test/OpenMP/target_dyn_groupprivate_messages.cpp
 create mode 100644 clang/test/OpenMP/target_teams_dyn_groupprivate_messages.cpp

diff --git a/clang/include/clang/AST/OpenMPClause.h b/clang/include/clang/AST/OpenMPClause.h
index 1118d3e062e68..a3983120df069 100644
--- a/clang/include/clang/AST/OpenMPClause.h
+++ b/clang/include/clang/AST/OpenMPClause.h
@@ -9768,6 +9768,161 @@ class OMPXDynCGroupMemClause
   Expr *getSize() const { return getStmtAs<Expr>(); }
 };
 
+/// This represents 'dyn_groupprivate' clause in '#pragma omp target ...'
+/// and '#pragma omp teams ...' directives.
+///
+/// \code
+/// #pragma omp target [...] dyn_groupprivate(a,b: N)
+/// \endcode
+class OMPDynGroupprivateClause : public OMPClause, public OMPClauseWithPreInit {
+  friend class OMPClauseReader;
+
+  /// Location of '('.
+  SourceLocation LParenLoc;
+
+  /// Modifiers for 'dyn_groupprivate' clause.
+  enum { FIRST, SECOND, NUM_MODIFIERS };
+  OpenMPDynGroupprivateClauseModifier Modifiers[NUM_MODIFIERS];
+
+  /// Locations of modifiers.
+  SourceLocation ModifiersLoc[NUM_MODIFIERS];
+
+  /// The size of the dyn_groupprivate.
+  Expr *Size = nullptr;
+
+  /// Set the first dyn_groupprivate modifier.
+  ///
+  /// \param M The modifier.
+  void setFirstDynGroupprivateModifier(OpenMPDynGroupprivateClauseModifier M) {
+    Modifiers[FIRST] = M;
+  }
+
+  /// Set the second dyn_groupprivate modifier.
+  ///
+  /// \param M The modifier.
+  void setSecondDynGroupprivateModifier(OpenMPDynGroupprivateClauseModifier M) {
+    Modifiers[SECOND] = M;
+  }
+
+  /// Set location of the first dyn_groupprivate modifier.
+  void setFirstDynGroupprivateModifierLoc(SourceLocation Loc) {
+    ModifiersLoc[FIRST] = Loc;
+  }
+
+  /// Set location of the second dyn_groupprivate modifier.
+  void setSecondDynGroupprivateModifierLoc(SourceLocation Loc) {
+    ModifiersLoc[SECOND] = Loc;
+  }
+
+  /// Set dyn_groupprivate modifier location.
+  ///
+  /// \param M The modifier location.
+  void setDynGroupprivateModifer(OpenMPDynGroupprivateClauseModifier M) {
+    if (Modifiers[FIRST] == OMPC_DYN_GROUPPRIVATE_unknown)
+      Modifiers[FIRST] = M;
+    else {
+      assert(Modifiers[SECOND] == OMPC_DYN_GROUPPRIVATE_unknown);
+      Modifiers[SECOND] = M;
+    }
+  }
+
+  /// Sets the location of '('.
+  ///
+  /// \param Loc Location of '('.
+  void setLParenLoc(SourceLocation Loc) { LParenLoc = Loc; }
+
+  /// Set size.
+  ///
+  /// \param E Size.
+  void setSize(Expr *E) { Size = E; }
+
+public:
+  /// Build 'dyn_groupprivate' clause with a size expression \a Size.
+  ///
+  /// \param StartLoc Starting location of the clause.
+  /// \param LParenLoc Location of '('.
+  /// \param EndLoc Ending location of the clause.
+  /// \param Size Size.
+  /// \param M1 The first modifier applied to 'dyn_groupprivate' clause.
+  /// \param M1Loc Location of the first modifier.
+  /// \param M2 The second modifier applied to 'dyn_groupprivate' clause.
+  /// \param M2Loc Location of the second modifier.
+  OMPDynGroupprivateClause(SourceLocation StartLoc, SourceLocation LParenLoc,
+                           SourceLocation EndLoc, Expr *Size, Stmt *HelperSize,
+                           OpenMPDirectiveKind CaptureRegion,
+                           OpenMPDynGroupprivateClauseModifier M1,
+                           SourceLocation M1Loc,
+                           OpenMPDynGroupprivateClauseModifier M2,
+                           SourceLocation M2Loc)
+      : OMPClause(llvm::omp::OMPC_dyn_groupprivate, StartLoc, EndLoc),
+        OMPClauseWithPreInit(this), LParenLoc(LParenLoc), Size(Size) {
+    setPreInitStmt(HelperSize, CaptureRegion);
+    Modifiers[FIRST] = M1;
+    Modifiers[SECOND] = M2;
+    ModifiersLoc[FIRST] = M1Loc;
+    ModifiersLoc[SECOND] = M2Loc;
+  }
+
+  /// Build an empty clause.
+  explicit OMPDynGroupprivateClause()
+      : OMPClause(llvm::omp::OMPC_dyn_groupprivate, SourceLocation(),
+                  SourceLocation()),
+        OMPClauseWithPreInit(this) {
+    Modifiers[FIRST] = OMPC_DYN_GROUPPRIVATE_unknown;
+    Modifiers[SECOND] = OMPC_DYN_GROUPPRIVATE_unknown;
+  }
+
+  /// Get the first modifier of the clause.
+  OpenMPDynGroupprivateClauseModifier getFirstDynGroupprivateModifier() const {
+    return Modifiers[FIRST];
+  }
+
+  /// Get the second modifier of the clause.
+  OpenMPDynGroupprivateClauseModifier getSecondDynGroupprivateModifier() const {
+    return Modifiers[SECOND];
+  }
+
+  /// Get location of '('.
+  SourceLocation getLParenLoc() { return LParenLoc; }
+
+  /// Get the first modifier location.
+  SourceLocation getFirstDynGroupprivateModifierLoc() const {
+    return ModifiersLoc[FIRST];
+  }
+
+  /// Get the second modifier location.
+  SourceLocation getSecondDynGroupprivateModifierLoc() const {
+    return ModifiersLoc[SECOND];
+  }
+
+  /// Get size.
+  Expr *getSize() { return Size; }
+
+  /// Get size.
+  const Expr *getSize() const { return Size; }
+
+  child_range children() {
+    return child_range(reinterpret_cast<Stmt **>(&Size),
+                       reinterpret_cast<Stmt **>(&Size) + 1);
+  }
+
+  const_child_range children() const {
+    auto Children = const_cast<OMPDynGroupprivateClause *>(this)->children();
+    return const_child_range(Children.begin(), Children.end());
+  }
+
+  child_range used_children() {
+    return child_range(child_iterator(), child_iterator());
+  }
+  const_child_range used_children() const {
+    return const_child_range(const_child_iterator(), const_child_iterator());
+  }
+
+  static bool classof(const OMPClause *T) {
+    return T->getClauseKind() == llvm::omp::OMPC_dyn_groupprivate;
+  }
+};
+
 /// This represents the 'doacross' clause for the '#pragma omp ordered'
 /// directive.
 ///
diff --git a/clang/include/clang/AST/RecursiveASTVisitor.h b/clang/include/clang/AST/RecursiveASTVisitor.h
index 5cb2f57edffe4..129115d56fe82 100644
--- a/clang/include/clang/AST/RecursiveASTVisitor.h
+++ b/clang/include/clang/AST/RecursiveASTVisitor.h
@@ -4060,6 +4060,14 @@ bool RecursiveASTVisitor<Derived>::VisitOMPXDynCGroupMemClause(
   return true;
 }
 
+template <typename Derived>
+bool RecursiveASTVisitor<Derived>::VisitOMPDynGroupprivateClause(
+    OMPDynGroupprivateClause *C) {
+  TRY_TO(VisitOMPClauseWithPreInit(C));
+  TRY_TO(TraverseStmt(C->getSize()));
+  return true;
+}
+
 template <typename Derived>
 bool RecursiveASTVisitor<Derived>::VisitOMPDoacrossClause(
     OMPDoacrossClause *C) {
diff --git a/clang/include/clang/Basic/DiagnosticSemaKinds.td b/clang/include/clang/Basic/DiagnosticSemaKinds.td
index b285309e0b3ca..edfa2d229789a 100644
--- a/clang/include/clang/Basic/DiagnosticSemaKinds.td
+++ b/clang/include/clang/Basic/DiagnosticSemaKinds.td
@@ -11995,6 +11995,9 @@ def err_omp_unexpected_schedule_modifier : Error<
   "modifier '%0' cannot be used along with modifier '%1'">;
 def err_omp_schedule_nonmonotonic_static : Error<
   "'nonmonotonic' modifier can only be specified with 'dynamic' or 'guided' schedule kind">;
+def err_omp_unexpected_dyn_groupprivate_modifier
+    : Error<"modifier '%0' cannot be used along with modifier '%1' in "
+            "dyn_groupprivate">;
 def err_omp_simple_clause_incompatible_with_ordered : Error<
   "'%0' clause with '%1' modifier cannot be specified if an 'ordered' clause is specified">;
 def err_omp_ordered_simd : Error<
diff --git a/clang/include/clang/Basic/OpenMPKinds.def b/clang/include/clang/Basic/OpenMPKinds.def
index 9d6f816eea91f..3321e19cae9b1 100644
--- a/clang/include/clang/Basic/OpenMPKinds.def
+++ b/clang/include/clang/Basic/OpenMPKinds.def
@@ -83,6 +83,9 @@
 #ifndef OPENMP_GRAINSIZE_MODIFIER
 #define OPENMP_GRAINSIZE_MODIFIER(Name)
 #endif
+#ifndef OPENMP_DYN_GROUPPRIVATE_MODIFIER
+#define OPENMP_DYN_GROUPPRIVATE_MODIFIER(Name)
+#endif
 #ifndef OPENMP_NUMTASKS_MODIFIER
 #define OPENMP_NUMTASKS_MODIFIER(Name)
 #endif
@@ -227,6 +230,11 @@ OPENMP_BIND_KIND(thread)
 // Modifiers for the 'grainsize' clause.
 OPENMP_GRAINSIZE_MODIFIER(strict)
 
+// Modifiers for the 'dyn_groupprivate' clause.
+OPENMP_DYN_GROUPPRIVATE_MODIFIER(cgroup)
+OPENMP_DYN_GROUPPRIVATE_MODIFIER(strict)
+OPENMP_DYN_GROUPPRIVATE_MODIFIER(fallback)
+
 // Modifiers for the 'num_tasks' clause.
 OPENMP_NUMTASKS_MODIFIER(strict)
 
@@ -245,6 +253,7 @@ OPENMP_DOACROSS_MODIFIER(source_omp_cur_iteration)
 
 #undef OPENMP_NUMTASKS_MODIFIER
 #undef OPENMP_NUMTHREADS_MODIFIER
+#undef OPENMP_DYN_GROUPPRIVATE_MODIFIER
 #undef OPENMP_GRAINSIZE_MODIFIER
 #undef OPENMP_BIND_KIND
 #undef OPENMP_ADJUST_ARGS_KIND
diff --git a/clang/include/clang/Basic/OpenMPKinds.h b/clang/include/clang/Basic/OpenMPKinds.h
index f40db4c13c55a..3e164bf1adf22 100644
--- a/clang/include/clang/Basic/OpenMPKinds.h
+++ b/clang/include/clang/Basic/OpenMPKinds.h
@@ -217,6 +217,16 @@ enum OpenMPGrainsizeClauseModifier {
   OMPC_GRAINSIZE_unknown
 };
 
+enum OpenMPDynGroupprivateClauseModifier {
+#define OPENMP_DYN_GROUPPRIVATE_MODIFIER(Name) OMPC_DYN_GROUPPRIVATE_##Name,
+#include "clang/Basic/OpenMPKinds.def"
+  OMPC_DYN_GROUPPRIVATE_unknown
+};
+
+/// Number of allowed dyn_groupprivate-modifiers.
+static constexpr unsigned NumberOfOMPDynGroupprivateClauseModifiers =
+    OMPC_DYN_GROUPPRIVATE_unknown;
+
 enum OpenMPNumTasksClauseModifier {
 #define OPENMP_NUMTASKS_MODIFIER(Name) OMPC_NUMTASKS_##Name,
 #include "clang/Basic/OpenMPKinds.def"
diff --git a/clang/include/clang/Sema/SemaOpenMP.h b/clang/include/clang/Sema/SemaOpenMP.h
index 91c3d4bd5210e..3b161ff3c7d45 100644
--- a/clang/include/clang/Sema/SemaOpenMP.h
+++ b/clang/include/clang/Sema/SemaOpenMP.h
@@ -1385,6 +1385,13 @@ class SemaOpenMP : public SemaBase {
                                             SourceLocation LParenLoc,
                                             SourceLocation EndLoc);
 
+  /// Called on a well-formed 'dyn_groupprivate' clause.
+  OMPClause *ActOnOpenMPDynGroupprivateClause(
+      OpenMPDynGroupprivateClauseModifier M1,
+      OpenMPDynGroupprivateClauseModifier M2, Expr *Size,
+      SourceLocation StartLoc, SourceLocation LParenLoc, SourceLocation M1Loc,
+      SourceLocation M2Loc, SourceLocation EndLoc);
+
   /// Called on well-formed 'doacross' clause.
   OMPClause *
   ActOnOpenMPDoacrossClause(OpenMPDoacrossClauseModifier DepType,
diff --git a/clang/lib/AST/OpenMPClause.cpp b/clang/lib/AST/OpenMPClause.cpp
index de8b5996818de..a6e79f1e2230b 100644
--- a/clang/lib/AST/OpenMPClause.cpp
+++ b/clang/lib/AST/OpenMPClause.cpp
@@ -104,6 +104,8 @@ const OMPClauseWithPreInit *OMPClauseWithPreInit::get(const OMPClause *C) {
     return static_cast<const OMPFilterClause *>(C);
   case OMPC_ompx_dyn_cgroup_mem:
     return static_cast<const OMPXDynCGroupMemClause *>(C);
+  case OMPC_dyn_groupprivate:
+    return static_cast<const OMPDynGroupprivateClause *>(C);
   case OMPC_default:
   case OMPC_proc_bind:
   case OMPC_safelen:
@@ -2725,6 +2727,25 @@ void OMPClausePrinter::VisitOMPXDynCGroupMemClause(
   OS << ")";
 }
 
+void OMPClausePrinter::VisitOMPDynGroupprivateClause(
+    OMPDynGroupprivateClause *Node) {
+  OS << "dyn_groupprivate(";
+  if (Node->getFirstDynGroupprivateModifier() !=
+      OMPC_DYN_GROUPPRIVATE_unknown) {
+    OS << getOpenMPSimpleClauseTypeName(
+        OMPC_dyn_groupprivate, Node->getFirstDynGroupprivateModifier());
+    if (Node->getSecondDynGroupprivateModifier() !=
+        OMPC_DYN_GROUPPRIVATE_unknown) {
+      OS << ", ";
+      OS << getOpenMPSimpleClauseTypeName(
+          OMPC_dyn_groupprivate, Node->getSecondDynGroupprivateModifier());
+    }
+    OS << ": ";
+  }
+  Node->getSize()->printPretty(OS, nullptr, Policy, 0);
+  OS << ')';
+}
+
 void OMPClausePrinter::VisitOMPDoacrossClause(OMPDoacrossClause *Node) {
   OS << "doacross(";
   OpenMPDoacrossClauseModifier DepType = Node->getDependenceType();
diff --git a/clang/lib/AST/StmtProfile.cpp b/clang/lib/AST/StmtProfile.cpp
index c61450e19f1b6..6b1a016649547 100644
--- a/clang/lib/AST/StmtProfile.cpp
+++ b/clang/lib/AST/StmtProfile.cpp
@@ -957,6 +957,12 @@ void OMPClauseProfiler::VisitOMPXDynCGroupMemClause(
   if (Expr *Size = C->getSize())
     Profiler->VisitStmt(Size);
 }
+void OMPClauseProfiler::VisitOMPDynGroupprivateClause(
+    const OMPDynGroupprivateClause *C) {
+  VistOMPClauseWithPreInit(C);
+  if (auto *Size = C->getSize())
+    Profiler->VisitStmt(Size);
+}
 void OMPClauseProfiler::VisitOMPDoacrossClause(const OMPDoacrossClause *C) {
   VisitOMPClauseList(C);
 }
diff --git a/clang/lib/Basic/OpenMPKinds.cpp b/clang/lib/Basic/OpenMPKinds.cpp
index d3d393bd09396..5a2b578cfb33e 100644
--- a/clang/lib/Basic/OpenMPKinds.cpp
+++ b/clang/lib/Basic/OpenMPKinds.cpp
@@ -171,6 +171,13 @@ unsigned clang::getOpenMPSimpleClauseType(OpenMPClauseKind Kind, StringRef Str,
       return OMPC_GRAINSIZE_unknown;
     return Type;
   }
+  case OMPC_dyn_groupprivate: {
+    return llvm::StringSwitch<unsigned>(Str)
+#define OPENMP_DYN_GROUPPRIVATE_MODIFIER(Name)                                 \
+  .Case(#Name, OMPC_DYN_GROUPPRIVATE_##Name)
+#include "clang/Basic/OpenMPKinds.def"
+        .Default(OMPC_DYN_GROUPPRIVATE_unknown);
+  }
   case OMPC_num_tasks: {
     unsigned Type = llvm::StringSwitch<unsigned>(Str)
 #define OPENMP_NUMTASKS_MODIFIER(Name) .Case(#Name, OMPC_NUMTASKS_##Name)
@@ -508,6 +515,16 @@ const char *clang::getOpenMPSimpleClauseTypeName(OpenMPClauseKind Kind,
 #include "clang/Basic/OpenMPKinds.def"
     }
     llvm_unreachable("Invalid OpenMP 'grainsize' clause modifier");
+  case OMPC_dyn_groupprivate:
+    switch (Type) {
+    case OMPC_DYN_GROUPPRIVATE_unknown:
+      return "unknown";
+#define OPENMP_DYN_GROUPPRIVATE_MODIFIER(Name)                                 \
+  case OMPC_DYN_GROUPPRIVATE_##Name:                                           \
+    return #Name;
+#include "clang/Basic/OpenMPKinds.def"
+    }
+    llvm_unreachable("Invalid OpenMP 'dyn_groupprivate' clause modifier");
   case OMPC_num_tasks:
     switch (Type) {
     case OMPC_NUMTASKS_unknown:
diff --git a/clang/lib/Parse/ParseOpenMP.cpp b/clang/lib/Parse/ParseOpenMP.cpp
index aa6a0c61a2c17..fe3c20b765e52 100644
--- a/clang/lib/Parse/ParseOpenMP.cpp
+++ b/clang/lib/Parse/ParseOpenMP.cpp
@@ -3039,6 +3039,7 @@ OMPClause *Parser::ParseOpenMPClause(OpenMPDirectiveKind DKind,
   case OMPC_align:
   case OMPC_message:
   case OMPC_ompx_dyn_cgroup_mem:
+  case OMPC_dyn_groupprivate:
     // OpenMP [2.5, Restrictions]
     //  At most one num_threads clause can appear on the directive.
     // OpenMP [2.8.1, simd construct, Restrictions]
@@ -3077,7 +3078,7 @@ OMPClause *Parser::ParseOpenMPClause(OpenMPDirectiveKind DKind,
         PP.LookAhead(/*N=*/0).isNot(tok::l_paren))
       Clause = ParseOpenMPClause(CKind, WrongDirective);
     else if (CKind == OMPC_grainsize || CKind == OMPC_num_tasks ||
-             CKind == OMPC_num_threads)
+             CKind == OMPC_num_threads || CKind == OMPC_dyn_groupprivate)
       Clause = ParseOpenMPSingleExprWithArgClause(DKind, CKind, WrongDirective);
     else
       Clause = ParseOpenMPSingleExprClause(CKind, WrongDirective);
@@ -3835,6 +3836,40 @@ OMPClause *Parser::ParseOpenMPSingleExprWithArgClause(OpenMPDirectiveKind DKind,
       Arg.push_back(OMPC_GRAINSIZE_unknown);
       KLoc.emplace_back();
     }
+  } else if (Kind == OMPC_dyn_groupprivate) {
+    enum { Modifier1, Modifier2, NumberOfElements };
+    Arg.resize(NumberOfElements);
+    KLoc.resize(NumberOfElements);
+    Arg[Modifier1] = OMPC_DYN_GROUPPRIVATE_unknown;
+    Arg[Modifier2] = OMPC_DYN_GROUPPRIVATE_unknown;
+    unsigned Modifier = getOpenMPSimpleClauseType(
+        Kind, Tok.isAnnotation() ? "" : PP.getSpelling(Tok), getLangOpts());
+
+    if (Modifier < OMPC_DYN_GROUPPRIVATE_unknown) {
+      // Parse 'modifier'
+      Arg[Modifier1] = Modifier;
+      KLoc[Modifier1] = Tok.getLocation();
+      if (Tok.isNot(tok::r_paren) && Tok.isNot(tok::comma) &&
+          Tok.isNot(tok::annot_pragma_openmp_end))
+        ConsumeAnyToken();
+      if (Tok.is(tok::comma)) {
+        // Parse ',' 'modifier'
+        ConsumeAnyToken();
+        Modifier = getOpenMPSimpleClauseType(
+            Kind, Tok.isAnnotation() ? "" : PP.getSpelling(Tok), getLangOpts());
+        Arg[Modifier2] = Modifier;
+        KLoc[Modifier2] = Tok.getLocation();
+        if (Tok.isNot(tok::r_paren) && Tok.isNot(tok::comma) &&
+            Tok.isNot(tok::annot_pragma_openmp_end))
+          ConsumeAnyToken();
+      }
+      // Parse ':'
+      if (Tok.is(tok::colon))
+        ConsumeAnyToken();
+      else
+        Diag(Tok, diag::warn_pragma_expected_colon)
+            << "dyn_groupprivate modifier";
+    }
   } else if (Kind == OMPC_num_tasks) {
     // Parse optional <num_tasks modifier> ':'
     OpenMPNumTasksClauseModifier Modifier =
@@ -3909,11 +3944,11 @@ OMPClause *Parser::ParseOpenMPSingleExprWithArgClause(OpenMPDirectiveKind DKind,
     }
   }
 
-  bool NeedAnExpression = (Kind == OMPC_schedule && DelimLoc.isValid()) ||
-                          (Kind == OMPC_dist_schedule && DelimLoc.isValid()) ||
-                          Kind == OMPC_if || Kind == OMPC_device ||
-                          Kind == OMPC_grainsize || Kind == OMPC_num_tasks ||
-                          Kind == OMPC_num_threads;
+  bool NeedAnExpression =
+      (Kind == OMPC_schedule && DelimLoc.isValid()) ||
+      (Kind == OMPC_dist_schedule && DelimLoc.isValid()) || Kind == OMPC_if ||
+      Kind == OMPC_device || Kind == OMPC_grainsize || Kind == OMPC_num_tasks ||
+      Kind == OMPC_num_threads || Kind == OMPC_dyn_groupprivate;
   if (NeedAnExpression) {
     SourceLocation ELoc = Tok.getLocation();
     ExprResult LHS(
diff --git a/clang/lib/Sema/SemaOpenMP.cpp b/clang/lib/Sema/SemaOpenMP.cpp
index 4ecc9b0d4c5c8..c63310757513e 100644
--- a/clang/lib/Sema/SemaOpenMP.cpp
+++ b/clang/lib/Sema/SemaOpenMP.cpp
@@ -15560,6 +15560,7 @@ OMPClause *SemaOpenMP::ActOnOpenMPSingleExprClause(OpenMPClauseKind Kind,
   case OMPC_holds:
     Res = ActOnOpenMPHoldsClause(Expr, StartLoc, LParenLoc, EndLoc);
     break;
+  case OMPC_dyn_groupprivate:
   case OMPC_grainsize:
   case OMPC_num_tasks:
   case OMPC_num_threads:
@@ -15686,6 +15687,8 @@ static OpenMPDirectiveKind getOpenMPCaptureRegionForClause(
   case OMPC_num_teams:
   case OMPC_thread_limit:
   case OMPC_ompx_dyn_cgroup_mem:
+  case OMPC_dyn_groupprivate:
+    // TODO: This may need to consider teams too.
     if (Leafs[0] == OMPD_target)
       return OMPD_target;
     break;
@@ -16646,7 +16649,7 @@ OMPClause *SemaOpenMP::ActOnOpenMPSingleExprWithArgClause(
     SourceLocation EndLoc) {
   OMPClause *Res = nullptr;
   switch (Kind) {
-  case OMPC_schedule:
+  case OMPC_schedule: {
     enum { Modifier1, Modifier2, ScheduleKind, NumberOfElements };
     assert(Argument.size() == NumberOfElements &&
            ArgumentLoc.size() == NumberOfElements);
@@ -16656,7 +16659,7 @@ OMPClause *SemaOpenMP::ActOnOpenMPSingleExprWithArgClause(
         static_cast<OpenMPScheduleClauseKind>(Argument[ScheduleKind]), Expr,
         StartLoc, LParenLoc, ArgumentLoc[Modifier1], ArgumentLoc[Modifier2],
         ArgumentLoc[ScheduleKind], DelimLoc, EndLoc);
-    break;
+  } break;
   case OMPC_if:
     assert(Argument.size() == 1 && ArgumentLoc.size() == 1);
     Res = ActOnOpenMPIfClause(static_cast<OpenMPDirectiveKind>(Argument.back()),
@@ -16703,6 +16706,16 @@ OMPClause *SemaOpenMP::ActOnOpenMPSingleExprWithArgClause(
         static_cast<OpenMPNumTasksClauseModifier>(Argument.back()), Expr,
         StartLoc, LParenLoc, ArgumentLoc.back(), EndLoc);
     break;
+  case OMPC_dyn_groupprivate: {
+    enum { Modifier1, Modifier2, NumberOfElements };
+    assert(Argument.size() == NumberOfElements &&
+           ArgumentLoc.size() == NumberOfElements);
+    Res = ActOnOpenMPDynGroupprivateClause(
+        static_cast<OpenMPDynGroupprivateClauseModifier>(Argument[Modifier1]),
+        static_cast<OpenMPDynGroupprivateClauseModifier>(Argument[Modifier2]),
+        Expr, StartLoc, LParenLoc, ArgumentLoc[Modifier1],
+        ArgumentLoc[Modifier2], EndLoc);
+  } break;
   case OMPC_num_threads:
     assert(Argument.size() == 1 && ArgumentLoc.size() == 1 &&
            "Modifier for num_threads clause and its location are expected.");
@@ -17056,6 +17069,7 @@ OMPClause *SemaOpenMP::ActOnOpenMPClause(OpenMPClauseKind Kind,
   case OMPC_affinity:
   case OMPC_when:
   case OMPC_ompx_dyn_cgroup_mem:
+  case OMPC_dyn_groupprivate:
   default:
     llvm_unreachable("Clause is not allowed.");
   }
@@ -24143,6 +24157,61 @@ OMPClause *SemaOpenMP::ActOnOpenMPXDynCGroupMemClause(Expr *Size,
       ValExpr, HelperValStmt, CaptureRegion, StartLoc, LParenLoc, EndLoc);
 }
 
+OMPClause *SemaOpenMP::ActOnOpenMPDynGroupprivateClause(
+    OpenMPDynGroupprivateClauseModifier M1,
+    OpenMPDynGroupprivateClauseModifier M2, Expr *Size, SourceLocation StartLoc,
+    SourceLocation LParenLoc, SourceLocation M1Loc, SourceLocation M2Loc,
+    SourceLocation EndLoc) {
+
+  if ((M1Loc.isValid() && M1 == OMPC_DYN_GROUPPRIVATE_unknown) ||
+      (M2Loc.isValid() && M2 == OMPC_DYN_GROUPPRIVATE_unknown)) {
+    std::string Values = getListOfPossibleValues(
+        OMPC_dyn_groupprivate, /*First=*/0, OMPC_DYN_GROUPPRIVATE_unknown);
+    Diag((M1Loc.isValid() && M1 == OMPC_DYN_GROUPPRIVATE_unknown) ? M1Loc
+                                                                  : M2Loc,
+         diag::err_omp_unexpected_clause_value)
+        << Values << getOpenMPClauseName(OMPC_dyn_groupprivate);
+    return nullptr;
+  }
+
+  if ((M1Loc.isValid() && M2Loc.isValid() && M1 == M2) ||
+      (M1 == OMPC_DYN_GROUPPRIVATE_strict &&
+       M2 == OMPC_DYN_GROUPPRIVATE_fallback) ||
+      (M1 == OMPC_DYN_GROUPPRIVATE_fallback &&
+       M2 == OMPC_DYN_GROUPPRIVATE_strict)) {
+
+    Diag(M2Loc, diag::err_omp_unexpected_dyn_groupprivate_modifier)
+        << getOpenMPSimpleClauseTypeName(OMPC_dyn_groupprivate, M2)
+        << getOpenMPSimpleClauseTypeName(OMPC_dyn_groupprivate, M1);
+    return nullptr;
+  }
+
+  Expr *ValExpr = Size;
+  Stmt *HelperValStmt = nullptr;
+
+  // OpenMP [2.5, Restrictions]
+  //  The dyn_groupprivate expression must evaluate to a positive integer
+  //  value.
+  if (!isNonNegativeIntegerValue(ValExpr, SemaRef, OMPC_dyn_groupprivate,
+                                 /*StrictlyPositive=*/false))
+    return nullptr;
+
+  OpenMPDirectiveKind DKind = DSAStack->getCurrentDirective();
+  OpenMPDirectiveKind CaptureRegion = getOpenMPCaptureRegionForClause(
+      DKind, OMPC_dyn_groupprivate, getLangOpts().OpenMP);
+  if (CaptureRegion != OMPD_unknown &&
+      !SemaRef.CurContext->isDependentContext()) {
+    ValExpr = SemaRef.MakeFullExpr(ValExpr).get();
+    llvm::MapVector<const Expr *, DeclRefExpr *> Captures;
+    ValExpr = tryBuildCapture(SemaRef, ValExpr, Captures).get();
+    HelperValStmt = buildPreInits(getASTContext(), Captures);
+  }
+
+  return new (getASTContext()) OMPDynGroupprivateClause(
+      StartLoc, LParenLoc, EndLoc, ValExpr, HelperValStmt, CaptureRegion, M1,
+      M1Loc, M2, M2Loc);
+}
+
 OMPClause *SemaOpenMP::ActOnOpenMPDoacrossClause(
     OpenMPDoacrossClauseModifier DepType, SourceLocation DepLoc,
     SourceLocation ColonLoc, ArrayRef<Expr *> VarList, SourceLocation StartLoc,
diff --git a/clang/lib/Sema/TreeTransform.h b/clang/lib/Sema/TreeTransform.h
index 758012f894a41..6222d63374824 100644
--- a/clang/lib/Sema/TreeTransform.h
+++ b/clang/lib/Sema/TreeTransform.h
@@ -2430,6 +2430,19 @@ class TreeTransform {
                                                              LParenLoc, EndLoc);
   }
 
+  /// Build a new OpenMP 'dyn_groupprivate' clause.
+  ///
+  /// By default, performs semantic analysis to build the new OpenMP clause.
+  /// Subclasses may override this routine to provide different behavior.
+  OMPClause *RebuildOMPDynGroupprivateClause(
+      OpenMPDynGroupprivateClauseModifier M1,
+      OpenMPDynGroupprivateClauseModifier M2, Expr *Size,
+      SourceLocation StartLoc, SourceLocation LParenLoc, SourceLocation M1Loc,
+      SourceLocation M2Loc, SourceLocation EndLoc) {
+    return getSema().OpenMP().ActOnOpenMPDynGroupprivateClause(
+        M1, M2, Size, StartLoc, LParenLoc, M1Loc, M2Loc, EndLoc);
+  }
+
   /// Build a new OpenMP 'ompx_attribute' clause.
   ///
   /// By default, performs semantic analysis to build the new OpenMP clause.
@@ -11691,6 +11704,19 @@ OMPClause *TreeTransform<Derived>::TransformOMPXDynCGroupMemClause(
       Size.get(), C->getBeginLoc(), C->getLParenLoc(), C->getEndLoc());
 }
 
+template <typename Derived>
+OMPClause *TreeTransform<Derived>::TransformOMPDynGroupprivateClause(
+    OMPDynGroupprivateClause *C) {
+  ExprResult Size = getDerived().TransformExpr(C->getSize());
+  if (Size.isInvalid())
+    return nullptr;
+  return getDerived().RebuildOMPDynGroupprivateClause(
+      C->getFirstDynGroupprivateModifier(),
+      C->getSecondDynGroupprivateModifier(), Size.get(), C->getBeginLoc(),
+      C->getLParenLoc(), C->getFirstDynGroupprivateModifierLoc(),
+      C->getSecondDynGroupprivateModifierLoc(), C->getEndLoc());
+}
+
 template <typename Derived>
 OMPClause *
 TreeTransform<Derived>::TransformOMPDoacrossClause(OMPDoacrossClause *C) {
diff --git a/clang/lib/Serialization/ASTReader.cpp b/clang/lib/Serialization/ASTReader.cpp
index 30e0973149594..84a30fcfcea59 100644
--- a/clang/lib/Serialization/ASTReader.cpp
+++ b/clang/lib/Serialization/ASTReader.cpp
@@ -11417,6 +11417,9 @@ OMPClause *OMPClauseReader::readClause() {
   case llvm::omp::OMPC_ompx_dyn_cgroup_mem:
     C = new (Context) OMPXDynCGroupMemClause();
     break;
+  case llvm::omp::OMPC_dyn_groupprivate:
+    C = new (Context) OMPDynGroupprivateClause();
+    break;
   case llvm::omp::OMPC_doacross: {
     unsigned NumVars = Record.readInt();
     unsigned NumLoops = Record.readInt();
@@ -12583,6 +12586,19 @@ void OMPClauseReader::VisitOMPXDynCGroupMemClause(OMPXDynCGroupMemClause *C) {
   C->setLParenLoc(Record.readSourceLocation());
 }
 
+void OMPClauseReader::VisitOMPDynGroupprivateClause(
+    OMPDynGroupprivateClause *C) {
+  VisitOMPClauseWithPreInit(C);
+  C->setFirstDynGroupprivateModifier(
+      static_cast<OpenMPDynGroupprivateClauseModifier>(Record.readInt()));
+  C->setSecondDynGroupprivateModifier(
+      static_cast<OpenMPDynGroupprivateClauseModifier>(Record.readInt()));
+  C->setSize(Record.readSubExpr());
+  C->setLParenLoc(Record.readSourceLocation());
+  C->setFirstDynGroupprivateModifierLoc(Record.readSourceLocation());
+  C->setSecondDynGroupprivateModifierLoc(Record.readSourceLocation());
+}
+
 void OMPClauseReader::VisitOMPDoacrossClause(OMPDoacrossClause *C) {
   C->setLParenLoc(Record.readSourceLocation());
   C->setDependenceType(
diff --git a/clang/lib/Serialization/ASTWriter.cpp b/clang/lib/Serialization/ASTWriter.cpp
index 1a20fc9595dce..42d1ab91a6879 100644
--- a/clang/lib/Serialization/ASTWriter.cpp
+++ b/clang/lib/Serialization/ASTWriter.cpp
@@ -8586,6 +8586,17 @@ void OMPClauseWriter::VisitOMPXDynCGroupMemClause(OMPXDynCGroupMemClause *C) {
   Record.AddSourceLocation(C->getLParenLoc());
 }
 
+void OMPClauseWriter::VisitOMPDynGroupprivateClause(
+    OMPDynGroupprivateClause *C) {
+  VisitOMPClauseWithPreInit(C);
+  Record.push_back(C->getFirstDynGroupprivateModifier());
+  Record.push_back(C->getSecondDynGroupprivateModifier());
+  Record.AddStmt(C->getSize());
+  Record.AddSourceLocation(C->getLParenLoc());
+  Record.AddSourceLocation(C->getFirstDynGroupprivateModifierLoc());
+  Record.AddSourceLocation(C->getSecondDynGroupprivateModifierLoc());
+}
+
 void OMPClauseWriter::VisitOMPDoacrossClause(OMPDoacrossClause *C) {
   Record.push_back(C->varlist_size());
   Record.push_back(C->getNumLoops());
diff --git a/clang/test/OpenMP/target_dyn_groupprivate_messages.cpp b/clang/test/OpenMP/target_dyn_groupprivate_messages.cpp
new file mode 100644
index 0000000000000..d5d855ee33e1f
--- /dev/null
+++ b/clang/test/OpenMP/target_dyn_groupprivate_messages.cpp
@@ -0,0 +1,87 @@
+// RUN: %clang_cc1 -verify -fopenmp -fopenmp-version=45 %s -Wuninitialized
+// RUN: %clang_cc1 -verify -fopenmp-simd -fopenmp-version=45 %s -Wuninitialized
+// RUN: %clang_cc1 -verify -fopenmp %s -Wuninitialized
+// RUN: %clang_cc1 -verify -fopenmp-simd %s -Wuninitialized
+
+void foo() {
+}
+
+bool foobool(int argc) {
+  return argc;
+}
+
+struct S1; // expected-note {{declared here}}
+
+template <class T, class S> // expected-note {{declared here}}
+int tmain(T argc, S **argv) {
+  T z;
+  #pragma omp target dyn_groupprivate // expected-error {{expected '(' after 'dyn_groupprivate'}}
+  foo();
+  #pragma omp target dyn_groupprivate ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+  foo();
+  #pragma omp target dyn_groupprivate () // expected-error {{expected expression}}
+  foo();
+  #pragma omp target dyn_groupprivate (argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
+  foo();
+  #pragma omp target dyn_groupprivate (argc)) // expected-warning {{extra tokens at the end of '#pragma omp target' are ignored}}
+  foo();
+  #pragma omp target dyn_groupprivate (argc > 0 ? argv[1] : argv[2]) // expected-error {{expression must have integral or unscoped enumeration type, not 'char *'}}
+  foo();
+  #pragma omp target dyn_groupprivate (foobool(argc)), dyn_groupprivate (true) // expected-error {{directive '#pragma omp target' cannot contain more than one 'dyn_groupprivate' clause}}
+  foo();
+  #pragma omp target dyn_groupprivate (S) // expected-error {{'S' does not refer to a value}}
+  foo();
+  #pragma omp target dyn_groupprivate (argv[1]=2) // expected-error {{expression must have integral or unscoped enumeration type, not 'char *'}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+  foo();
+  #pragma omp target dyn_groupprivate (argc argc) // expected-error {{expected ')'}} expected-note {{to match this '('}}
+  foo();
+  #pragma omp target dyn_groupprivate(argc+z)
+  foo();
+  return 0;
+}
+
+int main(int argc, char **argv) {
+constexpr int n = -1;
+int z;
+  #pragma omp target dyn_groupprivate // expected-error {{expected '(' after 'dyn_groupprivate'}}
+  foo();
+  #pragma omp target dyn_groupprivate ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+  foo();
+  #pragma omp target dyn_groupprivate () // expected-error {{expected expression}}
+  foo();
+  #pragma omp target dyn_groupprivate (argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
+  foo();
+  #pragma omp target dyn_groupprivate (argc)) // expected-warning {{extra tokens at the end of '#pragma omp target' are ignored}}
+  foo();
+  #pragma omp target dyn_groupprivate (argc > 0 ? argv[1] : argv[2]) // expected-error {{expression must have integral or unscoped enumeration type, not 'char *'}}
+  foo();
+  #pragma omp target dyn_groupprivate (foobool(argc)), dyn_groupprivate (true) // expected-error {{directive '#pragma omp target' cannot contain more than one 'dyn_groupprivate' clause}}
+  foo();
+  #pragma omp target dyn_groupprivate (S1) // expected-error {{'S1' does not refer to a value}}
+  foo();
+  #pragma omp target dyn_groupprivate (argv[1]=2) // expected-error {{expression must have integral or unscoped enumeration type, not 'char *'}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+  foo();
+  #pragma omp target dyn_groupprivate (argc argc) // expected-error {{expected ')'}} expected-note {{to match this '('}}
+  foo();
+  #pragma omp target dyn_groupprivate (1 0) // expected-error {{expected ')'}} expected-note {{to match this '('}}
+  foo();
+  #pragma omp target dyn_groupprivate(dyn_groupprivate(tmain(argc, argv) // expected-error2 {{expected ')'}} expected-note2 {{to match this '('}} expected-note {{in instantiation of function template specialization 'tmain<int, char>' requested here}}
+  foo();
+  #pragma omp target dyn_groupprivate(-1) // expected-error {{argument to 'dyn_groupprivate' clause must be a non-negative integer value}}
+  foo();
+  #pragma omp target dyn_groupprivate(cgrou) // expected-error {{use of undeclared identifier 'cgrou'}}
+  foo();
+  #pragma omp target dyn_groupprivate(cgrou: argc) // expected-error {{use of undeclared identifier 'cgrou'}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+  foo();
+  #pragma omp target dyn_groupprivate(cgroup,cgroup: argc) // expected-error {{modifier 'cgroup' cannot be used along with modifier 'cgroup' in dyn_groupprivate}}
+  foo();
+  #pragma omp target dyn_groupprivate(fallback,strict: argc) // expected-error {{modifier 'strict' cannot be used along with modifier 'fallback' in dyn_groupprivate}}
+  foo();
+  #pragma omp target dyn_groupprivate(strict,fallback: argc) // expected-error {{modifier 'fallback' cannot be used along with modifier 'strict' in dyn_groupprivate}}
+  foo();
+  #pragma omp target dyn_groupprivate(: argc) // expected-error {{expected ')'}} expected-error {{expected expression}} expected-note {{to match this '('}}
+  foo();
+
+  return tmain(argc, argv);
+}
+
diff --git a/clang/test/OpenMP/target_teams_dyn_groupprivate_messages.cpp b/clang/test/OpenMP/target_teams_dyn_groupprivate_messages.cpp
new file mode 100644
index 0000000000000..422dff547355c
--- /dev/null
+++ b/clang/test/OpenMP/target_teams_dyn_groupprivate_messages.cpp
@@ -0,0 +1,87 @@
+// RUN: %clang_cc1 -verify -fopenmp -fopenmp-version=45 %s -Wuninitialized
+// RUN: %clang_cc1 -verify -fopenmp-simd -fopenmp-version=45 %s -Wuninitialized
+// RUN: %clang_cc1 -verify -fopenmp %s -Wuninitialized
+// RUN: %clang_cc1 -verify -fopenmp-simd %s -Wuninitialized
+
+void foo() {
+}
+
+bool foobool(int argc) {
+  return argc;
+}
+
+struct S1; // expected-note {{declared here}}
+
+template <class T, class S> // expected-note {{declared here}}
+int tmain(T argc, S **argv) {
+  T z;
+  #pragma omp target teams dyn_groupprivate // expected-error {{expected '(' after 'dyn_groupprivate'}}
+  foo();
+  #pragma omp target teams dyn_groupprivate ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+  foo();
+  #pragma omp target teams dyn_groupprivate () // expected-error {{expected expression}}
+  foo();
+  #pragma omp target teams dyn_groupprivate (argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
+  foo();
+  #pragma omp target teams dyn_groupprivate (argc)) // expected-warning {{extra tokens at the end of '#pragma omp target teams' are ignored}}
+  foo();
+  #pragma omp target teams dyn_groupprivate (argc > 0 ? argv[1] : argv[2]) // expected-error {{expression must have integral or unscoped enumeration type, not 'char *'}}
+  foo();
+  #pragma omp target teams dyn_groupprivate (foobool(argc)), dyn_groupprivate (true) // expected-error {{directive '#pragma omp target teams' cannot contain more than one 'dyn_groupprivate' clause}}
+  foo();
+  #pragma omp target teams dyn_groupprivate (S) // expected-error {{'S' does not refer to a value}}
+  foo();
+  #pragma omp target teams dyn_groupprivate (argv[1]=2) // expected-error {{expression must have integral or unscoped enumeration type, not 'char *'}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+  foo();
+  #pragma omp target teams dyn_groupprivate (argc argc) // expected-error {{expected ')'}} expected-note {{to match this '('}}
+  foo();
+  #pragma omp target teams dyn_groupprivate(argc+z)
+  foo();
+  return 0;
+}
+
+int main(int argc, char **argv) {
+constexpr int n = -1;
+int z;
+  #pragma omp target teams dyn_groupprivate // expected-error {{expected '(' after 'dyn_groupprivate'}}
+  foo();
+  #pragma omp target teams dyn_groupprivate ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+  foo();
+  #pragma omp target teams dyn_groupprivate () // expected-error {{expected expression}}
+  foo();
+  #pragma omp target teams dyn_groupprivate (argc // expected-error {{expected ')'}} expected-note {{to match this '('}}
+  foo();
+  #pragma omp target teams dyn_groupprivate (argc)) // expected-warning {{extra tokens at the end of '#pragma omp target teams' are ignored}}
+  foo();
+  #pragma omp target teams dyn_groupprivate (argc > 0 ? argv[1] : argv[2]) // expected-error {{expression must have integral or unscoped enumeration type, not 'char *'}}
+  foo();
+  #pragma omp target teams dyn_groupprivate (foobool(argc)), dyn_groupprivate (true) // expected-error {{directive '#pragma omp target teams' cannot contain more than one 'dyn_groupprivate' clause}}
+  foo();
+  #pragma omp target teams dyn_groupprivate (S1) // expected-error {{'S1' does not refer to a value}}
+  foo();
+  #pragma omp target teams dyn_groupprivate (argv[1]=2) // expected-error {{expression must have integral or unscoped enumeration type, not 'char *'}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+  foo();
+  #pragma omp target teams dyn_groupprivate (argc argc) // expected-error {{expected ')'}} expected-note {{to match this '('}}
+  foo();
+  #pragma omp target teams dyn_groupprivate (1 0) // expected-error {{expected ')'}} expected-note {{to match this '('}}
+  foo();
+  #pragma omp target teams dyn_groupprivate(dyn_groupprivate(tmain(argc, argv) // expected-error2 {{expected ')'}} expected-note2 {{to match this '('}} expected-note {{in instantiation of function template specialization 'tmain<int, char>' requested here}}
+  foo();
+  #pragma omp target teams dyn_groupprivate(-1) // expected-error {{argument to 'dyn_groupprivate' clause must be a non-negative integer value}}
+  foo();
+  #pragma omp target teams dyn_groupprivate(cgrou) // expected-error {{use of undeclared identifier 'cgrou'}}
+  foo();
+  #pragma omp target teams dyn_groupprivate(cgrou: argc) // expected-error {{use of undeclared identifier 'cgrou'}} expected-error {{expected ')'}} expected-note {{to match this '('}}
+  foo();
+  #pragma omp target teams dyn_groupprivate(cgroup,cgroup: argc) // expected-error {{modifier 'cgroup' cannot be used along with modifier 'cgroup' in dyn_groupprivate}}
+  foo();
+  #pragma omp target teams dyn_groupprivate(fallback,strict: argc) // expected-error {{modifier 'strict' cannot be used along with modifier 'fallback' in dyn_groupprivate}}
+  foo();
+  #pragma omp target teams dyn_groupprivate(strict,fallback: argc) // expected-error {{modifier 'fallback' cannot be used along with modifier 'strict' in dyn_groupprivate}}
+  foo();
+  #pragma omp target teams dyn_groupprivate(: argc) // expected-error {{expected ')'}} expected-error {{expected expression}} expected-note {{to match this '('}}
+  foo();
+
+  return tmain(argc, argv);
+}
+
diff --git a/clang/tools/libclang/CIndex.cpp b/clang/tools/libclang/CIndex.cpp
index 9089984fa4a54..32d75d4cd8d38 100644
--- a/clang/tools/libclang/CIndex.cpp
+++ b/clang/tools/libclang/CIndex.cpp
@@ -2808,6 +2808,11 @@ void OMPClauseEnqueue::VisitOMPXDynCGroupMemClause(
   VisitOMPClauseWithPreInit(C);
   Visitor->AddStmt(C->getSize());
 }
+void OMPClauseEnqueue::VisitOMPDynGroupprivateClause(
+    const OMPDynGroupprivateClause *C) {
+  VisitOMPClauseWithPreInit(C);
+  Visitor->AddStmt(C->getSize());
+}
 void OMPClauseEnqueue::VisitOMPDoacrossClause(const OMPDoacrossClause *C) {
   VisitOMPClauseList(C);
 }
diff --git a/llvm/include/llvm/Frontend/OpenMP/OMP.td b/llvm/include/llvm/Frontend/OpenMP/OMP.td
index 1b94657dfae1e..78442a63b3ac4 100644
--- a/llvm/include/llvm/Frontend/OpenMP/OMP.td
+++ b/llvm/include/llvm/Frontend/OpenMP/OMP.td
@@ -178,6 +178,9 @@ def OMPC_Doacross : Clause<[Spelling<"doacross">]> {
 def OMPC_DynamicAllocators : Clause<[Spelling<"dynamic_allocators">]> {
   let clangClass = "OMPDynamicAllocatorsClause";
 }
+def OMPC_DynGroupprivate : Clause<[Spelling<"dyn_groupprivate">]> {
+  let clangClass = "OMPDynGroupprivateClause";
+}
 def OMPC_Enter : Clause<[Spelling<"enter">]> {
   let flangClass = "OmpObjectList";
 }
@@ -1104,6 +1107,7 @@ def OMP_Target : Directive<[Spelling<"target">]> {
   let allowedOnceClauses = [
     VersionedClause<OMPC_DefaultMap>,
     VersionedClause<OMPC_Device>,
+    VersionedClause<OMPC_DynGroupprivate>,
     VersionedClause<OMPC_If>,
     VersionedClause<OMPC_NoWait>,
     VersionedClause<OMPC_OMPX_Bare>,
@@ -1254,6 +1258,7 @@ def OMP_Teams : Directive<[Spelling<"teams">]> {
   ];
   let allowedOnceClauses = [
     VersionedClause<OMPC_Default>,
+    VersionedClause<OMPC_DynGroupprivate>,
     VersionedClause<OMPC_If, 52>,
     VersionedClause<OMPC_NumTeams>,
     VersionedClause<OMPC_ThreadLimit>,
@@ -1522,6 +1527,7 @@ def OMP_target_loop : Directive<[Spelling<"target loop">]> {
   let allowedOnceClauses = [
     VersionedClause<OMPC_Bind, 50>,
     VersionedClause<OMPC_Collapse>,
+    VersionedClause<OMPC_DynGroupprivate>,
     VersionedClause<OMPC_Order>,
     VersionedClause<OMPC_ThreadLimit>,
     VersionedClause<OMPC_OMPX_DynCGroupMem>,
@@ -1983,6 +1989,7 @@ def OMP_TargetParallel : Directive<[Spelling<"target parallel">]> {
   let allowedOnceClauses = [
     VersionedClause<OMPC_DefaultMap>,
     VersionedClause<OMPC_Device>,
+    VersionedClause<OMPC_DynGroupprivate>,
     VersionedClause<OMPC_NumThreads>,
     VersionedClause<OMPC_OMPX_DynCGroupMem>,
     VersionedClause<OMPC_ProcBind>,
@@ -2086,6 +2093,7 @@ def OMP_TargetParallelFor : Directive<[Spelling<"target parallel for">]> {
     VersionedClause<OMPC_UsesAllocators, 50>,
   ];
   let allowedOnceClauses = [
+    VersionedClause<OMPC_DynGroupprivate>,
     VersionedClause<OMPC_OMPX_DynCGroupMem>,
     VersionedClause<OMPC_ThreadLimit, 51>,
   ];
@@ -2126,6 +2134,7 @@ def OMP_TargetParallelForSimd
     VersionedClause<OMPC_UsesAllocators, 50>,
   ];
   let allowedOnceClauses = [
+    VersionedClause<OMPC_DynGroupprivate>,
     VersionedClause<OMPC_OMPX_DynCGroupMem>,
     VersionedClause<OMPC_ThreadLimit, 51>,
   ];
@@ -2155,6 +2164,7 @@ def OMP_target_parallel_loop : Directive<[Spelling<"target parallel loop">]> {
     VersionedClause<OMPC_Collapse>,
     VersionedClause<OMPC_Default>,
     VersionedClause<OMPC_DefaultMap>,
+    VersionedClause<OMPC_DynGroupprivate>,
     VersionedClause<OMPC_NoWait>,
     VersionedClause<OMPC_NumThreads>,
     VersionedClause<OMPC_OMPX_DynCGroupMem>,
@@ -2189,6 +2199,7 @@ def OMP_TargetSimd : Directive<[Spelling<"target simd">]> {
     VersionedClause<OMPC_Collapse>,
     VersionedClause<OMPC_DefaultMap>,
     VersionedClause<OMPC_Device>,
+    VersionedClause<OMPC_DynGroupprivate>,
     VersionedClause<OMPC_NumThreads>,
     VersionedClause<OMPC_OMPX_DynCGroupMem>,
     VersionedClause<OMPC_Order, 50>,
@@ -2220,6 +2231,7 @@ def OMP_TargetTeams : Directive<[Spelling<"target teams">]> {
     VersionedClause<OMPC_Default>,
     VersionedClause<OMPC_DefaultMap>,
     VersionedClause<OMPC_Device>,
+    VersionedClause<OMPC_DynGroupprivate>,
     VersionedClause<OMPC_NoWait>,
     VersionedClause<OMPC_NumTeams>,
     VersionedClause<OMPC_OMPX_DynCGroupMem>,
@@ -2252,6 +2264,7 @@ def OMP_TargetTeamsDistribute
     VersionedClause<OMPC_DefaultMap>,
     VersionedClause<OMPC_Device>,
     VersionedClause<OMPC_DistSchedule>,
+    VersionedClause<OMPC_DynGroupprivate>,
     VersionedClause<OMPC_NoWait>,
     VersionedClause<OMPC_NumTeams>,
     VersionedClause<OMPC_OMPX_DynCGroupMem>,
@@ -2284,6 +2297,7 @@ def OMP_TargetTeamsDistributeParallelDo
     VersionedClause<OMPC_DefaultMap>,
     VersionedClause<OMPC_Device>,
     VersionedClause<OMPC_DistSchedule>,
+    VersionedClause<OMPC_DynGroupprivate>,
     VersionedClause<OMPC_NoWait>,
     VersionedClause<OMPC_NumTeams>,
     VersionedClause<OMPC_NumThreads>,
@@ -2322,6 +2336,7 @@ def OMP_TargetTeamsDistributeParallelDoSimd
     VersionedClause<OMPC_DefaultMap>,
     VersionedClause<OMPC_Device>,
     VersionedClause<OMPC_DistSchedule>,
+    VersionedClause<OMPC_DynGroupprivate>,
     VersionedClause<OMPC_NoWait>,
     VersionedClause<OMPC_NumTeams>,
     VersionedClause<OMPC_NumThreads>,
@@ -2367,6 +2382,7 @@ def OMP_TargetTeamsDistributeParallelFor
     VersionedClause<OMPC_UsesAllocators, 50>,
   ];
   let allowedOnceClauses = [
+    VersionedClause<OMPC_DynGroupprivate>,
     VersionedClause<OMPC_OMPX_DynCGroupMem>,
   ];
   let leafConstructs =
@@ -2409,6 +2425,7 @@ def OMP_TargetTeamsDistributeParallelForSimd
     VersionedClause<OMPC_UsesAllocators, 50>,
   ];
   let allowedOnceClauses = [
+    VersionedClause<OMPC_DynGroupprivate>,
     VersionedClause<OMPC_OMPX_DynCGroupMem>,
   ];
   let leafConstructs =
@@ -2441,6 +2458,7 @@ def OMP_TargetTeamsDistributeSimd
     VersionedClause<OMPC_DefaultMap>,
     VersionedClause<OMPC_Device>,
     VersionedClause<OMPC_DistSchedule>,
+    VersionedClause<OMPC_DynGroupprivate>,
     VersionedClause<OMPC_NoWait>,
     VersionedClause<OMPC_NumTeams>,
     VersionedClause<OMPC_OMPX_DynCGroupMem>,
@@ -2474,6 +2492,7 @@ def OMP_target_teams_loop : Directive<[Spelling<"target teams loop">]> {
     VersionedClause<OMPC_Bind, 50>,
     VersionedClause<OMPC_Collapse>,
     VersionedClause<OMPC_Default>,
+    VersionedClause<OMPC_DynGroupprivate>,
     VersionedClause<OMPC_NoWait>,
     VersionedClause<OMPC_NumTeams>,
     VersionedClause<OMPC_OMPX_DynCGroupMem>,
@@ -2532,6 +2551,7 @@ def OMP_TeamsDistribute : Directive<[Spelling<"teams distribute">]> {
     VersionedClause<OMPC_ThreadLimit>,
   ];
   let allowedOnceClauses = [
+    VersionedClause<OMPC_DynGroupprivate>,
     VersionedClause<OMPC_If>,
     VersionedClause<OMPC_Order, 50>,
   ];
@@ -2555,6 +2575,7 @@ def OMP_TeamsDistributeParallelDo
     VersionedClause<OMPC_Collapse>,
     VersionedClause<OMPC_Default>,
     VersionedClause<OMPC_DistSchedule>,
+    VersionedClause<OMPC_DynGroupprivate>,
     VersionedClause<OMPC_NumTeams>,
     VersionedClause<OMPC_NumThreads>,
     VersionedClause<OMPC_Order, 50>,
@@ -2584,6 +2605,7 @@ def OMP_TeamsDistributeParallelDoSimd
     VersionedClause<OMPC_Collapse>,
     VersionedClause<OMPC_Default>,
     VersionedClause<OMPC_DistSchedule>,
+    VersionedClause<OMPC_DynGroupprivate>,
     VersionedClause<OMPC_NumTeams>,
     VersionedClause<OMPC_NumThreads>,
     VersionedClause<OMPC_Order, 50>,
@@ -2632,6 +2654,7 @@ def OMP_TeamsDistributeParallelForSimd
     VersionedClause<OMPC_Collapse>,
     VersionedClause<OMPC_Default>,
     VersionedClause<OMPC_DistSchedule>,
+    VersionedClause<OMPC_DynGroupprivate>,
     VersionedClause<OMPC_FirstPrivate>,
     VersionedClause<OMPC_If>,
     VersionedClause<OMPC_LastPrivate>,
@@ -2673,6 +2696,7 @@ def OMP_TeamsDistributeSimd : Directive<[Spelling<"teams distribute simd">]> {
     VersionedClause<OMPC_Collapse>,
     VersionedClause<OMPC_Default>,
     VersionedClause<OMPC_DistSchedule>,
+    VersionedClause<OMPC_DynGroupprivate>,
     VersionedClause<OMPC_NumTeams>,
     VersionedClause<OMPC_Order, 50>,
     VersionedClause<OMPC_SafeLen>,
@@ -2696,6 +2720,7 @@ def OMP_teams_loop : Directive<[Spelling<"teams loop">]> {
     VersionedClause<OMPC_Bind, 50>,
     VersionedClause<OMPC_Collapse>,
     VersionedClause<OMPC_Default>,
+    VersionedClause<OMPC_DynGroupprivate>,
     VersionedClause<OMPC_NumTeams>,
     VersionedClause<OMPC_Order>,
     VersionedClause<OMPC_ThreadLimit>,



More information about the llvm-commits mailing list