llvm · kiranchandramohan · Mar 19, 2025 · Mar 19, 2025
diff --git a/flang/examples/FeatureList/FeatureList.cpp b/flang/examples/FeatureList/FeatureList.cpp
@@ -522,13 +522,6 @@ struct NodeVisitor {
   READ_FEATURE(OmpScheduleClause)
   READ_FEATURE(OmpScheduleClause::Kind)
   READ_FEATURE(OmpScheduleClause::Modifier)
-  READ_FEATURE(OmpInteropRuntimeIdentifier)
-  READ_FEATURE(OmpInteropPreference)
-  READ_FEATURE(OmpInteropType)
-  READ_FEATURE(OmpInteropType::Value)
-  READ_FEATURE(OmpInitClause)
-  READ_FEATURE(OmpInitClause::Modifier)
-  READ_FEATURE(OmpUseClause)
   READ_FEATURE(OmpDeviceModifier)
   READ_FEATURE(OmpDeviceClause)
   READ_FEATURE(OmpDeviceClause::Modifier)
@@ -549,7 +542,6 @@ struct NodeVisitor {
   READ_FEATURE(OpenACCConstruct)
   READ_FEATURE(OpenACCDeclarativeConstruct)
   READ_FEATURE(OpenACCLoopConstruct)
-  READ_FEATURE(OpenMPInteropConstruct)
   READ_FEATURE(OpenACCRoutineConstruct)
   READ_FEATURE(OpenACCStandaloneDeclarativeConstruct)
   READ_FEATURE(OpenACCStandaloneConstruct)

diff --git a/flang/include/flang/Parser/dump-parse-tree.h b/flang/include/flang/Parser/dump-parse-tree.h
@@ -656,13 +656,6 @@ class ParseTreeDumper {
   NODE_ENUM(OmpDeviceModifier, Value)
   NODE(parser, OmpDeviceTypeClause)
   NODE_ENUM(OmpDeviceTypeClause, DeviceTypeDescription)
-  NODE(parser, OmpInteropRuntimeIdentifier)
-  NODE(parser, OmpInteropPreference)
-  NODE(parser, OmpInteropType)
-  NODE_ENUM(OmpInteropType, Value)
-  NODE(parser, OmpInitClause)
-  NODE(OmpInitClause, Modifier)
-  NODE(parser, OmpUseClause)
   NODE(parser, OmpUpdateClause)
   NODE(parser, OmpChunkModifier)
   NODE_ENUM(OmpChunkModifier, Value)
@@ -682,7 +675,6 @@ class ParseTreeDumper {
   NODE(parser, OpenACCDeclarativeConstruct)
   NODE(parser, OpenACCEndConstruct)
   NODE(parser, OpenACCLoopConstruct)
-  NODE(parser, OpenMPInteropConstruct)
   NODE(parser, OpenACCRoutineConstruct)
   NODE(parser, OpenACCStandaloneDeclarativeConstruct)
   NODE(parser, OpenACCStandaloneConstruct)

diff --git a/flang/include/flang/Parser/parse-tree.h b/flang/include/flang/Parser/parse-tree.h
@@ -3824,33 +3824,6 @@ struct OmpExpectation {
   WRAPPER_CLASS_BOILERPLATE(OmpExpectation, Value);
 };
 
-// REF: [5.1:217-220], [5.2:293-294]
-//
-// OmpInteropRuntimeIdentifier ->                   // since 5.2
-// CharLiteralConstant || ScalarIntConstantExpr
-struct OmpInteropRuntimeIdentifier {
-  UNION_CLASS_BOILERPLATE(OmpInteropRuntimeIdentifier);
-  std::variant<CharLiteralConstant, ScalarIntConstantExpr> u;
-};
-
-// REF: [5.1:217-220], [5.2:293-294]
-//
-// OmpInteropPreference ->                          // since 5.2
-// ([OmpRuntimeIdentifier, ...])
-struct OmpInteropPreference {
-  WRAPPER_CLASS_BOILERPLATE(
-      OmpInteropPreference, std::list<OmpInteropRuntimeIdentifier>);
-};
-
-// REF: [5.1:217-220], [5.2:293-294]
-//
-// InteropType -> target || targetsync              // since 5.2
-// There can be at most only two interop-type.
-struct OmpInteropType {
-  ENUM_CLASS(Value, Target, TargetSync)
-  WRAPPER_CLASS_BOILERPLATE(OmpInteropType, Value);
-};
-
 // Ref: [5.0:47-49], [5.1:49-51], [5.2:67-69]
 //
 // iterator-modifier ->
@@ -4508,25 +4481,6 @@ struct OmpWhenClause {
       t;
 };
 
-// REF: [5.1:217-220], [5.2:293-294]
-//
-// init-clause -> INIT ([interop-modifier,] [interop-type,]
-//                              interop-type: interop-var)
-// interop-modifier: prefer_type(preference-list)
-// interop-type: target, targetsync
-// interop-var: Ompobject
-// There can be at most only two interop-type.
-struct OmpInitClause {
-  TUPLE_CLASS_BOILERPLATE(OmpInitClause);
-  MODIFIER_BOILERPLATE(OmpInteropPreference, OmpInteropType);
-  std::tuple<MODIFIERS(), OmpObject> t;
-};
-
-// REF: [5.1:217-220], [5.2:294]
-//
-// 14.1.3 use-clause -> USE (interop-var)
-WRAPPER_CLASS(OmpUseClause, OmpObject);
-
 // OpenMP Clauses
 struct OmpClause {
   UNION_CLASS_BOILERPLATE(OmpClause);
@@ -4985,15 +4939,6 @@ struct OmpSimpleStandaloneDirective {
   CharBlock source;
 };
 
-// Ref: [5.1:217-220], [5.2:291-292]
-//
-// interop -> INTEROP clause[ [ [,] clause]...]
-struct OpenMPInteropConstruct {
-  TUPLE_CLASS_BOILERPLATE(OpenMPInteropConstruct);
-  CharBlock source;
-  std::tuple<Verbatim, OmpClauseList> t;
-};
-
 struct OpenMPSimpleStandaloneConstruct {
   TUPLE_CLASS_BOILERPLATE(OpenMPSimpleStandaloneConstruct);
   CharBlock source;
@@ -5005,7 +4950,7 @@ struct OpenMPStandaloneConstruct {
   CharBlock source;
   std::variant<OpenMPSimpleStandaloneConstruct, OpenMPFlushConstruct,
       OpenMPCancelConstruct, OpenMPCancellationPointConstruct,
-      OpenMPDepobjConstruct, OmpMetadirectiveDirective, OpenMPInteropConstruct>
+      OpenMPDepobjConstruct, OmpMetadirectiveDirective>
       u;
 };
 

diff --git a/flang/include/flang/Semantics/openmp-modifiers.h b/flang/include/flang/Semantics/openmp-modifiers.h
@@ -77,8 +77,6 @@ DECLARE_DESCRIPTOR(parser::OmpDependenceType);
 DECLARE_DESCRIPTOR(parser::OmpDeviceModifier);
 DECLARE_DESCRIPTOR(parser::OmpDirectiveNameModifier);
 DECLARE_DESCRIPTOR(parser::OmpExpectation);
-DECLARE_DESCRIPTOR(parser::OmpInteropPreference);
-DECLARE_DESCRIPTOR(parser::OmpInteropType);
 DECLARE_DESCRIPTOR(parser::OmpIterator);
 DECLARE_DESCRIPTOR(parser::OmpLastprivateModifier);
 DECLARE_DESCRIPTOR(parser::OmpLinearModifier);

diff --git a/flang/lib/Lower/OpenMP/OpenMP.cpp b/flang/lib/Lower/OpenMP/OpenMP.cpp
@@ -425,9 +425,6 @@ extractOmpDirective(const parser::OpenMPConstruct &ompConstruct) {
                     },
                     [](const parser::OpenMPDepobjConstruct &c) {
                       return llvm::omp::OMPD_depobj;
-                    },
-                    [](const parser::OpenMPInteropConstruct &c) {
-                      return llvm::omp::OMPD_interop;
                     }},
                 c.u);
           },
@@ -3378,13 +3375,6 @@ static void genOMP(lower::AbstractConverter &converter, lower::SymMap &symTable,
   TODO(converter.getCurrentLocation(), "OpenMPDepobjConstruct");
 }
 
-static void genOMP(lower::AbstractConverter &converter, lower::SymMap &symTable,
-                   semantics::SemanticsContext &semaCtx,
-                   lower::pft::Evaluation &eval,
-                   const parser::OpenMPInteropConstruct &interopConstruct) {
-  TODO(converter.getCurrentLocation(), "OpenMPInteropConstruct");
-}
-
 static void
 genOMP(lower::AbstractConverter &converter, lower::SymMap &symTable,
        semantics::SemanticsContext &semaCtx, lower::pft::Evaluation &eval,

diff --git a/flang/lib/Parser/openmp-parsers.cpp b/flang/lib/Parser/openmp-parsers.cpp
@@ -394,17 +394,6 @@ TYPE_PARSER(construct<OmpDeviceModifier>(
 TYPE_PARSER(construct<OmpExpectation>( //
     "PRESENT" >> pure(OmpExpectation::Value::Present)))
 
-TYPE_PARSER(construct<OmpInteropRuntimeIdentifier>(
-    construct<OmpInteropRuntimeIdentifier>(charLiteralConstant) ||
-    construct<OmpInteropRuntimeIdentifier>(scalarIntConstantExpr)))
-
-TYPE_PARSER(construct<OmpInteropPreference>(verbatim("PREFER_TYPE"_tok) >>
-    parenthesized(nonemptyList(Parser<OmpInteropRuntimeIdentifier>{}))))
-
-TYPE_PARSER(construct<OmpInteropType>(
-    "TARGETSYNC" >> pure(OmpInteropType::Value::TargetSync) ||
-    "TARGET" >> pure(OmpInteropType::Value::Target)))
-
 TYPE_PARSER(construct<OmpIteratorSpecifier>(
     // Using Parser<TypeDeclarationStmt> or Parser<EntityDecl> has the problem
     // that they will attempt to treat what follows the '=' as initialization.
@@ -532,11 +521,6 @@ TYPE_PARSER(sourced(
 
 TYPE_PARSER(sourced(construct<OmpIfClause::Modifier>(OmpDirectiveNameParser{})))
 
-TYPE_PARSER(sourced(
-    construct<OmpInitClause::Modifier>(
-        construct<OmpInitClause::Modifier>(Parser<OmpInteropPreference>{})) ||
-    construct<OmpInitClause::Modifier>(Parser<OmpInteropType>{})))
-
 TYPE_PARSER(sourced(construct<OmpInReductionClause::Modifier>(
     Parser<OmpReductionIdentifier>{})))
 
@@ -773,11 +757,6 @@ TYPE_PARSER(
 // OpenMPv5.2 12.5.2 detach-clause -> DETACH (event-handle)
 TYPE_PARSER(construct<OmpDetachClause>(Parser<OmpObject>{}))
 
-// init clause
-TYPE_PARSER(construct<OmpInitClause>(
-    maybe(nonemptyList(Parser<OmpInitClause::Modifier>{}) / ":"),
-    Parser<OmpObject>{}))
-
 // 2.8.1 ALIGNED (list: alignment)
 TYPE_PARSER(construct<OmpAlignedClause>(Parser<OmpObjectList>{},
     maybe(":" >> nonemptyList(Parser<OmpAlignedClause::Modifier>{}))))
@@ -917,8 +896,6 @@ TYPE_PARSER( //
     "IF" >> construct<OmpClause>(construct<OmpClause::If>(
                 parenthesized(Parser<OmpIfClause>{}))) ||
     "INBRANCH" >> construct<OmpClause>(construct<OmpClause::Inbranch>()) ||
-    "INIT" >> construct<OmpClause>(construct<OmpClause::Init>(
-                  parenthesized(Parser<OmpInitClause>{}))) ||
     "INCLUSIVE" >> construct<OmpClause>(construct<OmpClause::Inclusive>(
                        parenthesized(Parser<OmpObjectList>{}))) ||
     "INITIALIZER" >> construct<OmpClause>(construct<OmpClause::Initializer>(
@@ -1008,8 +985,6 @@ TYPE_PARSER( //
                           parenthesized(scalarIntExpr))) ||
     "TO" >> construct<OmpClause>(construct<OmpClause::To>(
                 parenthesized(Parser<OmpToClause>{}))) ||
-    "USE" >> construct<OmpClause>(construct<OmpClause::Use>(
-                 parenthesized(Parser<OmpObject>{}))) ||
     "USE_DEVICE_PTR" >> construct<OmpClause>(construct<OmpClause::UseDevicePtr>(
                             parenthesized(Parser<OmpObjectList>{}))) ||
     "USE_DEVICE_ADDR" >>
@@ -1237,10 +1212,6 @@ TYPE_PARSER(sourced(construct<OmpSimpleStandaloneDirective>(first(
 TYPE_PARSER(sourced(construct<OpenMPSimpleStandaloneConstruct>(
     Parser<OmpSimpleStandaloneDirective>{}, Parser<OmpClauseList>{})))
 
-// OMP 5.2 14.1 Interop construct
-TYPE_PARSER(sourced(construct<OpenMPInteropConstruct>(
-    verbatim("INTEROP"_tok), sourced(Parser<OmpClauseList>{}))))
-
 // Standalone Constructs
 TYPE_PARSER(
     sourced(construct<OpenMPStandaloneConstruct>(
@@ -1252,9 +1223,7 @@ TYPE_PARSER(
         construct<OpenMPStandaloneConstruct>(Parser<OpenMPCancelConstruct>{}) ||
         construct<OpenMPStandaloneConstruct>(
             Parser<OmpMetadirectiveDirective>{}) ||
-        construct<OpenMPStandaloneConstruct>(Parser<OpenMPDepobjConstruct>{}) ||
-        construct<OpenMPStandaloneConstruct>(
-            Parser<OpenMPInteropConstruct>{})) /
+        construct<OpenMPStandaloneConstruct>(Parser<OpenMPDepobjConstruct>{})) /
     endOfLine)
 
 // Directives enclosing structured-block

diff --git a/flang/lib/Parser/unparse.cpp b/flang/lib/Parser/unparse.cpp
@@ -2179,30 +2179,6 @@ class UnparseVisitor {
     Walk(std::get<std::optional<std::list<Modifier>>>(x.t), ": ");
     Walk(std::get<OmpObjectList>(x.t));
   }
-  void Unparse(const OmpInteropPreference &x) { Walk(x.v, ","); }
-  void Unparse(const OmpInitClause &x) {
-    using Modifier = OmpInitClause::Modifier;
-    auto &modifiers{std::get<std::optional<std::list<Modifier>>>(x.t)};
-    bool isTypeStart{true};
-    for (const Modifier &m : *modifiers) {
-      if (auto *interopPreferenceMod{
-              std::get_if<parser::OmpInteropPreference>(&m.u)}) {
-        Put("PREFER_TYPE(");
-        Walk(*interopPreferenceMod);
-        Put("),");
-      } else if (auto *interopTypeMod{
-                     std::get_if<parser::OmpInteropType>(&m.u)}) {
-        if (isTypeStart) {
-          isTypeStart = false;
-        } else {
-          Put(",");
-        }
-        Walk(*interopTypeMod);
-      }
-    }
-    Put(": ");
-    Walk(std::get<OmpObject>(x.t));
-  }
   void Unparse(const OmpMapClause &x) {
     using Modifier = OmpMapClause::Modifier;
     Walk(std::get<std::optional<std::list<Modifier>>>(x.t), ": ");
@@ -2764,15 +2740,6 @@ class UnparseVisitor {
     Put("\n");
     EndOpenMP();
   }
-
-  void Unparse(const OpenMPInteropConstruct &x) {
-    BeginOpenMP();
-    Word("!$OMP INTEROP");
-    Walk(std::get<OmpClauseList>(x.t));
-    Put("\n");
-    EndOpenMP();
-  }
-
   void Unparse(const OpenMPDeclarativeAssumes &x) {
     BeginOpenMP();
     Word("!$OMP ASSUMES ");
@@ -3070,7 +3037,6 @@ class UnparseVisitor {
       OmpDeviceTypeClause, DeviceTypeDescription) // OMP device_type
   WALK_NESTED_ENUM(OmpReductionModifier, Value) // OMP reduction-modifier
   WALK_NESTED_ENUM(OmpExpectation, Value) // OMP motion-expectation
-  WALK_NESTED_ENUM(OmpInteropType, Value) // OMP InteropType
   WALK_NESTED_ENUM(OmpOrderClause, Ordering) // OMP ordering
   WALK_NESTED_ENUM(OmpOrderModifier, Value) // OMP order-modifier
   WALK_NESTED_ENUM(OmpPrescriptiveness, Value) // OMP prescriptiveness

diff --git a/flang/lib/Semantics/check-omp-structure.cpp b/flang/lib/Semantics/check-omp-structure.cpp
@@ -5665,88 +5665,6 @@ void OmpStructureChecker::Leave(const parser::DoConstruct &x) {
   Base::Leave(x);
 }
 
-void OmpStructureChecker::Enter(const parser::OpenMPInteropConstruct &x) {
-  bool isDependClauseOccured{false};
-  int targetCount{0}, targetSyncCount{0};
-  const auto &dir{std::get<parser::Verbatim>(x.t)};
-  std::set<const Symbol *> objectSymbolList;
-  PushContextAndClauseSets(dir.source, llvm::omp::Directive::OMPD_interop);
-  const auto &clauseList{std::get<parser::OmpClauseList>(x.t)};
-  for (const auto &clause : clauseList.v) {
-    common::visit(
-        common::visitors{
-            [&](const parser::OmpClause::Init &initClause) {
-              if (OmpVerifyModifiers(initClause.v, llvm::omp::OMPC_init,
-                      GetContext().directiveSource, context_)) {
-
-                auto &modifiers{OmpGetModifiers(initClause.v)};
-                auto &&interopTypeModifier{
-                    OmpGetRepeatableModifier<parser::OmpInteropType>(
-                        modifiers)};
-                for (const auto &it : interopTypeModifier) {
-                  if (it->v == parser::OmpInteropType::Value::TargetSync) {
-                    ++targetSyncCount;
-                  } else {
-                    ++targetCount;
-                  }
-                }
-              }
-              const auto &interopVar{parser::Unwrap<parser::OmpObject>(
-                  std::get<parser::OmpObject>(initClause.v.t))};
-              const auto *name{parser::Unwrap<parser::Name>(interopVar)};
-              const auto *objectSymbol{name->symbol};
-              if (llvm::is_contained(objectSymbolList, objectSymbol)) {
-                context_.Say(GetContext().directiveSource,
-                    "Each interop-var may be speciﬁed for at most one action-clause of each INTEROP construct."_err_en_US);
-              } else {
-                objectSymbolList.insert(objectSymbol);
-              }
-            },
-            [&](const parser::OmpClause::Depend &dependClause) {
-              isDependClauseOccured = true;
-            },
-            [&](const parser::OmpClause::Destroy &destroyClause) {
-              const auto &interopVar{
-                  parser::Unwrap<parser::OmpObject>(destroyClause.v)};
-              const auto *name{parser::Unwrap<parser::Name>(interopVar)};
-              const auto *objectSymbol{name->symbol};
-              if (llvm::is_contained(objectSymbolList, objectSymbol)) {
-                context_.Say(GetContext().directiveSource,
-                    "Each interop-var may be speciﬁed for at most one action-clause of each INTEROP construct."_err_en_US);
-              } else {
-                objectSymbolList.insert(objectSymbol);
-              }
-            },
-            [&](const parser::OmpClause::Use &useClause) {
-              const auto &interopVar{
-                  parser::Unwrap<parser::OmpObject>(useClause.v)};
-              const auto *name{parser::Unwrap<parser::Name>(interopVar)};
-              const auto *objectSymbol{name->symbol};
-              if (llvm::is_contained(objectSymbolList, objectSymbol)) {
-                context_.Say(GetContext().directiveSource,
-                    "Each interop-var may be speciﬁed for at most one action-clause of each INTEROP construct."_err_en_US);
-              } else {
-                objectSymbolList.insert(objectSymbol);
-              }
-            },
-            [&](const auto &) {},
-        },
-        clause.u);
-  }
-  if (targetCount > 1 || targetSyncCount > 1) {
-    context_.Say(GetContext().directiveSource,
-        "Each interop-type may be speciﬁed at most once."_err_en_US);
-  }
-  if (isDependClauseOccured && !targetSyncCount) {
-    context_.Say(GetContext().directiveSource,
-        "A DEPEND clause can only appear on the directive if the interop-type includes TARGETSYNC"_err_en_US);
-  }
-}
-
-void OmpStructureChecker::Leave(const parser::OpenMPInteropConstruct &) {
-  dirContext_.pop_back();
-}
-
 void OmpStructureChecker::CheckAllowedRequiresClause(llvmOmpClause clause) {
   CheckAllowedClause(clause);
 

diff --git a/flang/lib/Semantics/check-omp-structure.h b/flang/lib/Semantics/check-omp-structure.h
@@ -73,8 +73,6 @@ class OmpStructureChecker
 
   void Enter(const parser::OpenMPConstruct &);
   void Leave(const parser::OpenMPConstruct &);
-  void Enter(const parser::OpenMPInteropConstruct &);
-  void Leave(const parser::OpenMPInteropConstruct &);
   void Enter(const parser::OpenMPDeclarativeConstruct &);
   void Leave(const parser::OpenMPDeclarativeConstruct &);