This revision was landed with ongoing or failed builds. This revision was automatically updated to reflect the committed changes. tianshilei1992 marked an inline comment as done. Closed by commit rGc7a589a2c4e2: [Clang][OpenMP] Add the support for atomic compare in parser (authored by tianshilei1992).
Repository: rG LLVM Github Monorepo CHANGES SINCE LAST ACTION https://reviews.llvm.org/D115561/new/ https://reviews.llvm.org/D115561 Files: clang/include/clang/AST/OpenMPClause.h clang/include/clang/AST/RecursiveASTVisitor.h clang/include/clang/Basic/DiagnosticSemaKinds.td clang/include/clang/Sema/Sema.h clang/lib/AST/OpenMPClause.cpp clang/lib/AST/StmtProfile.cpp clang/lib/Basic/OpenMPKinds.cpp clang/lib/CodeGen/CGStmtOpenMP.cpp clang/lib/Parse/ParseOpenMP.cpp clang/lib/Sema/SemaOpenMP.cpp clang/lib/Sema/TreeTransform.h clang/lib/Serialization/ASTReader.cpp clang/lib/Serialization/ASTWriter.cpp clang/test/OpenMP/atomic_messages.cpp clang/tools/libclang/CIndex.cpp flang/lib/Semantics/check-omp-structure.cpp llvm/include/llvm/Frontend/OpenMP/OMP.td
Index: llvm/include/llvm/Frontend/OpenMP/OMP.td =================================================================== --- llvm/include/llvm/Frontend/OpenMP/OMP.td +++ llvm/include/llvm/Frontend/OpenMP/OMP.td @@ -180,6 +180,7 @@ def OMPC_Write : Clause<"write"> { let clangClass = "OMPWriteClause"; } def OMPC_Update : Clause<"update"> { let clangClass = "OMPUpdateClause"; } def OMPC_Capture : Clause<"capture"> { let clangClass = "OMPCaptureClause"; } +def OMPC_Compare : Clause<"compare"> { let clangClass = "OMPCompareClause"; } def OMPC_SeqCst : Clause<"seq_cst"> { let clangClass = "OMPSeqCstClause"; } def OMPC_AcqRel : Clause<"acq_rel"> { let clangClass = "OMPAcqRelClause"; } def OMPC_Acquire : Clause<"acquire"> { let clangClass = "OMPAcquireClause"; } @@ -536,6 +537,7 @@ VersionedClause<OMPC_Write>, VersionedClause<OMPC_Update>, VersionedClause<OMPC_Capture>, + VersionedClause<OMPC_Compare, 51> ]; let allowedOnceClauses = [ VersionedClause<OMPC_SeqCst>, Index: flang/lib/Semantics/check-omp-structure.cpp =================================================================== --- flang/lib/Semantics/check-omp-structure.cpp +++ flang/lib/Semantics/check-omp-structure.cpp @@ -1482,6 +1482,7 @@ CHECK_SIMPLE_CLAUSE(MemoryOrder, OMPC_memory_order) CHECK_SIMPLE_CLAUSE(Bind, OMPC_bind) CHECK_SIMPLE_CLAUSE(Align, OMPC_align) +CHECK_SIMPLE_CLAUSE(Compare, OMPC_compare) CHECK_REQ_SCALAR_INT_CLAUSE(Grainsize, OMPC_grainsize) CHECK_REQ_SCALAR_INT_CLAUSE(NumTasks, OMPC_num_tasks) Index: clang/tools/libclang/CIndex.cpp =================================================================== --- clang/tools/libclang/CIndex.cpp +++ clang/tools/libclang/CIndex.cpp @@ -2275,6 +2275,8 @@ void OMPClauseEnqueue::VisitOMPCaptureClause(const OMPCaptureClause *) {} +void OMPClauseEnqueue::VisitOMPCompareClause(const OMPCompareClause *) {} + void OMPClauseEnqueue::VisitOMPSeqCstClause(const OMPSeqCstClause *) {} void OMPClauseEnqueue::VisitOMPAcqRelClause(const OMPAcqRelClause *) {} Index: clang/test/OpenMP/atomic_messages.cpp =================================================================== --- clang/test/OpenMP/atomic_messages.cpp +++ clang/test/OpenMP/atomic_messages.cpp @@ -1,8 +1,10 @@ // RUN: %clang_cc1 -verify=expected,omp45 -fopenmp -fopenmp-version=45 -ferror-limit 150 %s -Wuninitialized // RUN: %clang_cc1 -verify=expected,omp50 -fopenmp -ferror-limit 150 %s -Wuninitialized +// RUN: %clang_cc1 -verify=expected,omp50,omp51 -fopenmp -fopenmp-version=51 -ferror-limit 150 %s -Wuninitialized // RUN: %clang_cc1 -verify=expected,omp45 -fopenmp-simd -fopenmp-version=45 -ferror-limit 150 %s -Wuninitialized // RUN: %clang_cc1 -verify=expected,omp50 -fopenmp-simd -ferror-limit 150 %s -Wuninitialized +// RUN: %clang_cc1 -verify=expected,omp50,omp51 -fopenmp-simd -fopenmp-version=51 -ferror-limit 150 %s -Wuninitialized int foo() { L1: @@ -896,19 +898,19 @@ template <class T> T mixed() { T a, b = T(); -// expected-error@+2 2 {{directive '#pragma omp atomic' cannot contain more than one 'read', 'write', 'update' or 'capture' clause}} +// expected-error@+2 2 {{directive '#pragma omp atomic' cannot contain more than one 'read', 'write', 'update', 'capture', or 'compare' clause}} // expected-note@+1 2 {{'read' clause used here}} #pragma omp atomic read write a = b; -// expected-error@+2 2 {{directive '#pragma omp atomic' cannot contain more than one 'read', 'write', 'update' or 'capture' clause}} +// expected-error@+2 2 {{directive '#pragma omp atomic' cannot contain more than one 'read', 'write', 'update', 'capture', or 'compare' clause}} // expected-note@+1 2 {{'write' clause used here}} #pragma omp atomic write read a = b; -// expected-error@+2 2 {{directive '#pragma omp atomic' cannot contain more than one 'read', 'write', 'update' or 'capture' clause}} +// expected-error@+2 2 {{directive '#pragma omp atomic' cannot contain more than one 'read', 'write', 'update', 'capture', or 'compare' clause}} // expected-note@+1 2 {{'update' clause used here}} #pragma omp atomic update read a += b; -// expected-error@+2 2 {{directive '#pragma omp atomic' cannot contain more than one 'read', 'write', 'update' or 'capture' clause}} +// expected-error@+2 2 {{directive '#pragma omp atomic' cannot contain more than one 'read', 'write', 'update', 'capture', or 'compare' clause}} // expected-note@+1 2 {{'capture' clause used here}} #pragma omp atomic capture read a = ++b; @@ -917,19 +919,19 @@ int mixed() { int a, b = 0; -// expected-error@+2 {{directive '#pragma omp atomic' cannot contain more than one 'read', 'write', 'update' or 'capture' clause}} +// expected-error@+2 {{directive '#pragma omp atomic' cannot contain more than one 'read', 'write', 'update', 'capture', or 'compare' clause}} // expected-note@+1 {{'read' clause used here}} #pragma omp atomic read write a = b; -// expected-error@+2 {{directive '#pragma omp atomic' cannot contain more than one 'read', 'write', 'update' or 'capture' clause}} +// expected-error@+2 {{directive '#pragma omp atomic' cannot contain more than one 'read', 'write', 'update', 'capture', or 'compare' clause}} // expected-note@+1 {{'write' clause used here}} #pragma omp atomic write read a = b; -// expected-error@+2 {{directive '#pragma omp atomic' cannot contain more than one 'read', 'write', 'update' or 'capture' clause}} +// expected-error@+2 {{directive '#pragma omp atomic' cannot contain more than one 'read', 'write', 'update', 'capture', or 'compare' clause}} // expected-note@+1 {{'write' clause used here}} #pragma omp atomic write update a = b; -// expected-error@+2 {{directive '#pragma omp atomic' cannot contain more than one 'read', 'write', 'update' or 'capture' clause}} +// expected-error@+2 {{directive '#pragma omp atomic' cannot contain more than one 'read', 'write', 'update', 'capture', or 'compare' clause}} // expected-note@+1 {{'write' clause used here}} #pragma omp atomic write capture a = b; @@ -937,3 +939,14 @@ return mixed<int>(); } +#if _OPENMP >= 202011 +int compare() { + int a, b, c; +// omp51-error@+1 {{atomic compare is not supported for now}} +#pragma omp atomic compare + { + if (a == b) + a = c; + } +} +#endif Index: clang/lib/Serialization/ASTWriter.cpp =================================================================== --- clang/lib/Serialization/ASTWriter.cpp +++ clang/lib/Serialization/ASTWriter.cpp @@ -6252,6 +6252,8 @@ void OMPClauseWriter::VisitOMPCaptureClause(OMPCaptureClause *) {} +void OMPClauseWriter::VisitOMPCompareClause(OMPCompareClause *) {} + void OMPClauseWriter::VisitOMPSeqCstClause(OMPSeqCstClause *) {} void OMPClauseWriter::VisitOMPAcqRelClause(OMPAcqRelClause *) {} Index: clang/lib/Serialization/ASTReader.cpp =================================================================== --- clang/lib/Serialization/ASTReader.cpp +++ clang/lib/Serialization/ASTReader.cpp @@ -11765,6 +11765,9 @@ case llvm::omp::OMPC_capture: C = new (Context) OMPCaptureClause(); break; + case llvm::omp::OMPC_compare: + C = new (Context) OMPCompareClause(); + break; case llvm::omp::OMPC_seq_cst: C = new (Context) OMPSeqCstClause(); break; @@ -12123,6 +12126,8 @@ void OMPClauseReader::VisitOMPCaptureClause(OMPCaptureClause *) {} +void OMPClauseReader::VisitOMPCompareClause(OMPCompareClause *) {} + void OMPClauseReader::VisitOMPSeqCstClause(OMPSeqCstClause *) {} void OMPClauseReader::VisitOMPAcqRelClause(OMPAcqRelClause *) {} Index: clang/lib/Sema/TreeTransform.h =================================================================== --- clang/lib/Sema/TreeTransform.h +++ clang/lib/Sema/TreeTransform.h @@ -9460,6 +9460,13 @@ return C; } +template <typename Derived> +OMPClause * +TreeTransform<Derived>::TransformOMPCompareClause(OMPCompareClause *C) { + // No need to rebuild this clause, no template-dependent parameters. + return C; +} + template <typename Derived> OMPClause * TreeTransform<Derived>::TransformOMPSeqCstClause(OMPSeqCstClause *C) { Index: clang/lib/Sema/SemaOpenMP.cpp =================================================================== --- clang/lib/Sema/SemaOpenMP.cpp +++ clang/lib/Sema/SemaOpenMP.cpp @@ -6354,6 +6354,7 @@ case OMPC_write: case OMPC_update: case OMPC_capture: + case OMPC_compare: case OMPC_seq_cst: case OMPC_acq_rel: case OMPC_acquire: @@ -10939,7 +10940,8 @@ case OMPC_read: case OMPC_write: case OMPC_update: - case OMPC_capture: { + case OMPC_capture: + case OMPC_compare: { if (AtomicKind != OMPC_unknown) { Diag(C->getBeginLoc(), diag::err_omp_atomic_several_clauses) << SourceRange(C->getBeginLoc(), C->getEndLoc()); @@ -11383,15 +11385,21 @@ SourceRange(Body->getBeginLoc(), Body->getBeginLoc()); ErrorFound = NotACompoundStatement; } - if (ErrorFound != NoError) { - Diag(ErrorLoc, diag::err_omp_atomic_capture_not_compound_statement) - << ErrorRange; - Diag(NoteLoc, diag::note_omp_atomic_capture) << ErrorFound << NoteRange; - return StmtError(); - } - if (CurContext->isDependentContext()) - UE = V = E = X = nullptr; } + if (ErrorFound != NoError) { + Diag(ErrorLoc, diag::err_omp_atomic_capture_not_compound_statement) + << ErrorRange; + Diag(NoteLoc, diag::note_omp_atomic_capture) << ErrorFound << NoteRange; + return StmtError(); + } + if (CurContext->isDependentContext()) + UE = V = E = X = nullptr; + } else if (AtomicKind == OMPC_compare) { + // TODO: For now we emit an error here and in emitOMPAtomicExpr we ignore + // code gen. + unsigned DiagID = Diags.getCustomDiagID( + DiagnosticsEngine::Error, "atomic compare is not supported for now"); + Diag(AtomicKindLoc, DiagID); } setFunctionHasBranchProtectedScope(); @@ -13472,6 +13480,7 @@ case OMPC_write: case OMPC_update: case OMPC_capture: + case OMPC_compare: case OMPC_seq_cst: case OMPC_acq_rel: case OMPC_acquire: @@ -14303,6 +14312,7 @@ case OMPC_write: case OMPC_update: case OMPC_capture: + case OMPC_compare: case OMPC_seq_cst: case OMPC_acq_rel: case OMPC_acquire: @@ -14764,6 +14774,7 @@ case OMPC_read: case OMPC_write: case OMPC_capture: + case OMPC_compare: case OMPC_seq_cst: case OMPC_acq_rel: case OMPC_acquire: @@ -15069,6 +15080,7 @@ case OMPC_write: case OMPC_update: case OMPC_capture: + case OMPC_compare: case OMPC_seq_cst: case OMPC_acq_rel: case OMPC_acquire: @@ -15257,6 +15269,9 @@ case OMPC_capture: Res = ActOnOpenMPCaptureClause(StartLoc, EndLoc); break; + case OMPC_compare: + Res = ActOnOpenMPCompareClause(StartLoc, EndLoc); + break; case OMPC_seq_cst: Res = ActOnOpenMPSeqCstClause(StartLoc, EndLoc); break; @@ -15403,6 +15418,11 @@ return new (Context) OMPCaptureClause(StartLoc, EndLoc); } +OMPClause *Sema::ActOnOpenMPCompareClause(SourceLocation StartLoc, + SourceLocation EndLoc) { + return new (Context) OMPCompareClause(StartLoc, EndLoc); +} + OMPClause *Sema::ActOnOpenMPSeqCstClause(SourceLocation StartLoc, SourceLocation EndLoc) { return new (Context) OMPSeqCstClause(StartLoc, EndLoc); @@ -15871,6 +15891,7 @@ case OMPC_write: case OMPC_update: case OMPC_capture: + case OMPC_compare: case OMPC_seq_cst: case OMPC_acq_rel: case OMPC_acquire: Index: clang/lib/Parse/ParseOpenMP.cpp =================================================================== --- clang/lib/Parse/ParseOpenMP.cpp +++ clang/lib/Parse/ParseOpenMP.cpp @@ -3192,6 +3192,7 @@ case OMPC_read: case OMPC_write: case OMPC_capture: + case OMPC_compare: case OMPC_seq_cst: case OMPC_acq_rel: case OMPC_acquire: Index: clang/lib/CodeGen/CGStmtOpenMP.cpp =================================================================== --- clang/lib/CodeGen/CGStmtOpenMP.cpp +++ clang/lib/CodeGen/CGStmtOpenMP.cpp @@ -5967,6 +5967,9 @@ emitOMPAtomicCaptureExpr(CGF, AO, IsPostfixUpdate, V, X, E, UE, IsXLHSInRHSPart, Loc); break; + case OMPC_compare: + // Do nothing here as we already emit an error. + break; case OMPC_if: case OMPC_final: case OMPC_num_threads: Index: clang/lib/Basic/OpenMPKinds.cpp =================================================================== --- clang/lib/Basic/OpenMPKinds.cpp +++ clang/lib/Basic/OpenMPKinds.cpp @@ -163,6 +163,7 @@ case OMPC_read: case OMPC_write: case OMPC_capture: + case OMPC_compare: case OMPC_seq_cst: case OMPC_acq_rel: case OMPC_acquire: @@ -428,6 +429,7 @@ case OMPC_read: case OMPC_write: case OMPC_capture: + case OMPC_compare: case OMPC_seq_cst: case OMPC_acq_rel: case OMPC_acquire: Index: clang/lib/AST/StmtProfile.cpp =================================================================== --- clang/lib/AST/StmtProfile.cpp +++ clang/lib/AST/StmtProfile.cpp @@ -551,6 +551,8 @@ void OMPClauseProfiler::VisitOMPCaptureClause(const OMPCaptureClause *) {} +void OMPClauseProfiler::VisitOMPCompareClause(const OMPCompareClause *) {} + void OMPClauseProfiler::VisitOMPSeqCstClause(const OMPSeqCstClause *) {} void OMPClauseProfiler::VisitOMPAcqRelClause(const OMPAcqRelClause *) {} Index: clang/lib/AST/OpenMPClause.cpp =================================================================== --- clang/lib/AST/OpenMPClause.cpp +++ clang/lib/AST/OpenMPClause.cpp @@ -126,6 +126,7 @@ case OMPC_write: case OMPC_update: case OMPC_capture: + case OMPC_compare: case OMPC_seq_cst: case OMPC_acq_rel: case OMPC_acquire: @@ -217,6 +218,7 @@ case OMPC_write: case OMPC_update: case OMPC_capture: + case OMPC_compare: case OMPC_seq_cst: case OMPC_acq_rel: case OMPC_acquire: @@ -1792,6 +1794,10 @@ OS << "capture"; } +void OMPClausePrinter::VisitOMPCompareClause(OMPCompareClause *) { + OS << "compare"; +} + void OMPClausePrinter::VisitOMPSeqCstClause(OMPSeqCstClause *) { OS << "seq_cst"; } Index: clang/include/clang/Sema/Sema.h =================================================================== --- clang/include/clang/Sema/Sema.h +++ clang/include/clang/Sema/Sema.h @@ -11190,6 +11190,9 @@ /// Called on well-formed 'capture' clause. OMPClause *ActOnOpenMPCaptureClause(SourceLocation StartLoc, SourceLocation EndLoc); + /// Called on well-formed 'compare' clause. + OMPClause *ActOnOpenMPCompareClause(SourceLocation StartLoc, + SourceLocation EndLoc); /// Called on well-formed 'seq_cst' clause. OMPClause *ActOnOpenMPSeqCstClause(SourceLocation StartLoc, SourceLocation EndLoc); Index: clang/include/clang/Basic/DiagnosticSemaKinds.td =================================================================== --- clang/include/clang/Basic/DiagnosticSemaKinds.td +++ clang/include/clang/Basic/DiagnosticSemaKinds.td @@ -10509,7 +10509,7 @@ def note_omp_atomic_capture: Note< "%select{expected assignment expression|expected compound statement|expected exactly two expression statements|expected in right hand side of the first expression}0">; def err_omp_atomic_several_clauses : Error< - "directive '#pragma omp atomic' cannot contain more than one 'read', 'write', 'update' or 'capture' clause">; + "directive '#pragma omp atomic' cannot contain more than one 'read', 'write', 'update', 'capture', or 'compare' clause">; def err_omp_several_mem_order_clauses : Error< "directive '#pragma omp %0' cannot contain more than one %select{'seq_cst', 'relaxed', |}1'acq_rel', 'acquire' or 'release' clause">; def err_omp_atomic_incompatible_mem_order_clause : Error< Index: clang/include/clang/AST/RecursiveASTVisitor.h =================================================================== --- clang/include/clang/AST/RecursiveASTVisitor.h +++ clang/include/clang/AST/RecursiveASTVisitor.h @@ -3234,6 +3234,11 @@ return true; } +template <typename Derived> +bool RecursiveASTVisitor<Derived>::VisitOMPCompareClause(OMPCompareClause *) { + return true; +} + template <typename Derived> bool RecursiveASTVisitor<Derived>::VisitOMPSeqCstClause(OMPSeqCstClause *) { return true; Index: clang/include/clang/AST/OpenMPClause.h =================================================================== --- clang/include/clang/AST/OpenMPClause.h +++ clang/include/clang/AST/OpenMPClause.h @@ -2224,6 +2224,47 @@ } }; +/// This represents 'compare' clause in the '#pragma omp atomic' +/// directive. +/// +/// \code +/// #pragma omp atomic compare +/// \endcode +/// In this example directive '#pragma omp atomic' has 'compare' clause. +class OMPCompareClause final : public OMPClause { +public: + /// Build 'compare' clause. + /// + /// \param StartLoc Starting location of the clause. + /// \param EndLoc Ending location of the clause. + OMPCompareClause(SourceLocation StartLoc, SourceLocation EndLoc) + : OMPClause(llvm::omp::OMPC_compare, StartLoc, EndLoc) {} + + /// Build an empty clause. + OMPCompareClause() + : OMPClause(llvm::omp::OMPC_compare, SourceLocation(), SourceLocation()) { + } + + child_range children() { + return child_range(child_iterator(), child_iterator()); + } + + const_child_range children() const { + return const_child_range(const_child_iterator(), const_child_iterator()); + } + + 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_compare; + } +}; + /// This represents 'seq_cst' clause in the '#pragma omp atomic' /// directive. ///
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