lebedev.ri updated this revision to Diff 183903.
lebedev.ri added a comment.
NFC.
- Rebased
- Switched to `OpenMPClauseKind ASTNodeKind::getOMPClauseKind()`. This is
better anyway, since it avoids string comparisons, and is a simple switch over
an enum.
Repository:
rCTE Clang Tools Extra
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D57113/new/
https://reviews.llvm.org/D57113
Files:
clang-tidy/CMakeLists.txt
clang-tidy/ClangTidyForceLinker.h
clang-tidy/openmp/CMakeLists.txt
clang-tidy/openmp/OpenMPTidyModule.cpp
clang-tidy/openmp/UseDefaultNoneCheck.cpp
clang-tidy/openmp/UseDefaultNoneCheck.h
clang-tidy/plugin/CMakeLists.txt
clang-tidy/tool/CMakeLists.txt
docs/ReleaseNotes.rst
docs/clang-tidy/checks/list.rst
docs/clang-tidy/checks/openmp-use-default-none.rst
docs/clang-tidy/index.rst
test/clang-tidy/openmp-use-default-none.cpp
Index: test/clang-tidy/openmp-use-default-none.cpp
===================================================================
--- /dev/null
+++ test/clang-tidy/openmp-use-default-none.cpp
@@ -0,0 +1,160 @@
+// RUN: %check_clang_tidy %s openmp-use-default-none %t -- -- -x c++ -fopenmp -fopenmp-version=40
+// RUN: %check_clang_tidy %s openmp-use-default-none %t -- -- -x c -fopenmp -fopenmp-version=40
+
+//----------------------------------------------------------------------------//
+// Null cases.
+//----------------------------------------------------------------------------//
+
+// 'for' directive can not have 'default' clause, no diagnostics.
+void n0(const int a) {
+#pragma omp for
+ for (int b = 0; b < a; b++)
+ ;
+}
+
+//----------------------------------------------------------------------------//
+// Single-directive positive cases.
+//----------------------------------------------------------------------------//
+
+// 'parallel' directive.
+
+// 'parallel' directive can have 'default' clause, but said clause is not
+// specified, diagnosed.
+void p0_0() {
+#pragma omp parallel
+ ;
+ // CHECK-NOTES: :[[@LINE-2]]:9: warning: OpenMP directive 'parallel' does not specify 'default' clause. Consider specifying 'default(none)' clause.
+}
+
+// 'parallel' directive can have 'default' clause, and said clause is specified,
+// with 'none' kind, all good.
+void p0_1() {
+#pragma omp parallel default(none)
+ ;
+}
+
+// 'parallel' directive can have 'default' clause, and said clause is specified,
+// but with 'shared' kind, which is not 'none', diagnose.
+void p0_2() {
+#pragma omp parallel default(shared)
+ ;
+ // CHECK-NOTES: :[[@LINE-2]]:9: warning: OpenMP directive 'parallel' specifies 'default(shared)' clause. Consider using 'default(none)' clause instead.
+ // CHECK-NOTES: :[[@LINE-3]]:22: note: Existing 'default' clause is specified here.
+}
+
+// 'task' directive.
+
+// 'task' directive can have 'default' clause, but said clause is not
+// specified, diagnosed.
+void p1_0() {
+#pragma omp task
+ ;
+ // CHECK-NOTES: :[[@LINE-2]]:9: warning: OpenMP directive 'task' does not specify 'default' clause. Consider specifying 'default(none)' clause.
+}
+
+// 'task' directive can have 'default' clause, and said clause is specified,
+// with 'none' kind, all good.
+void p1_1() {
+#pragma omp task default(none)
+ ;
+}
+
+// 'task' directive can have 'default' clause, and said clause is specified,
+// but with 'shared' kind, which is not 'none', diagnose.
+void p1_2() {
+#pragma omp task default(shared)
+ ;
+ // CHECK-NOTES: :[[@LINE-2]]:9: warning: OpenMP directive 'task' specifies 'default(shared)' clause. Consider using 'default(none)' clause instead.
+ // CHECK-NOTES: :[[@LINE-3]]:18: note: Existing 'default' clause is specified here.
+}
+
+// 'teams' directive. (has to be inside of 'target' directive)
+
+// 'teams' directive can have 'default' clause, but said clause is not
+// specified, diagnosed.
+void p2_0() {
+#pragma omp target
+#pragma omp teams
+ ;
+ // CHECK-NOTES: :[[@LINE-2]]:9: warning: OpenMP directive 'teams' does not specify 'default' clause. Consider specifying 'default(none)' clause.
+}
+
+// 'teams' directive can have 'default' clause, and said clause is specified,
+// with 'none' kind, all good.
+void p2_1() {
+#pragma omp target
+#pragma omp teams default(none)
+ ;
+}
+
+// 'teams' directive can have 'default' clause, and said clause is specified,
+// but with 'shared' kind, which is not 'none', diagnose.
+void p2_2() {
+#pragma omp target
+#pragma omp teams default(shared)
+ ;
+ // CHECK-NOTES: :[[@LINE-2]]:9: warning: OpenMP directive 'teams' specifies 'default(shared)' clause. Consider using 'default(none)' clause instead.
+ // CHECK-NOTES: :[[@LINE-3]]:19: note: Existing 'default' clause is specified here.
+}
+
+// 'taskloop' directive.
+
+// 'taskloop' directive can have 'default' clause, but said clause is not
+// specified, diagnosed.
+void p3_0(const int a) {
+#pragma omp taskloop
+ for (int b = 0; b < a; b++)
+ ;
+ // CHECK-NOTES: :[[@LINE-3]]:9: warning: OpenMP directive 'taskloop' does not specify 'default' clause. Consider specifying 'default(none)' clause.
+}
+
+// 'taskloop' directive can have 'default' clause, and said clause is specified,
+// with 'none' kind, all good.
+void p3_1(const int a) {
+#pragma omp taskloop default(none) shared(a)
+ for (int b = 0; b < a; b++)
+ ;
+}
+
+// 'taskloop' directive can have 'default' clause, and said clause is specified,
+// but with 'shared' kind, which is not 'none', diagnose.
+void p3_2(const int a) {
+#pragma omp taskloop default(shared)
+ for (int b = 0; b < a; b++)
+ ;
+ // CHECK-NOTES: :[[@LINE-3]]:9: warning: OpenMP directive 'taskloop' specifies 'default(shared)' clause. Consider using 'default(none)' clause instead.
+ // CHECK-NOTES: :[[@LINE-4]]:22: note: Existing 'default' clause is specified here.
+}
+
+//----------------------------------------------------------------------------//
+// Combined directives.
+// Let's not test every single possible permutation/combination of directives,
+// but just *one* combined directive. The rest will be the same.
+//----------------------------------------------------------------------------//
+
+// 'parallel' directive can have 'default' clause, but said clause is not
+// specified, diagnosed.
+void p4_0(const int a) {
+#pragma omp parallel for
+ for (int b = 0; b < a; b++)
+ ;
+ // CHECK-NOTES: :[[@LINE-3]]:9: warning: OpenMP directive 'parallel for' does not specify 'default' clause. Consider specifying 'default(none)' clause.
+}
+
+// 'parallel' directive can have 'default' clause, and said clause is specified,
+// with 'none' kind, all good.
+void p4_1(const int a) {
+#pragma omp parallel for default(none) shared(a)
+ for (int b = 0; b < a; b++)
+ ;
+}
+
+// 'parallel' directive can have 'default' clause, and said clause is specified,
+// but with 'shared' kind, which is not 'none', diagnose.
+void p4_2(const int a) {
+#pragma omp parallel for default(shared)
+ for (int b = 0; b < a; b++)
+ ;
+ // CHECK-NOTES: :[[@LINE-3]]:9: warning: OpenMP directive 'parallel for' specifies 'default(shared)' clause. Consider using 'default(none)' clause instead.
+ // CHECK-NOTES: :[[@LINE-4]]:26: note: Existing 'default' clause is specified here.
+}
Index: docs/clang-tidy/index.rst
===================================================================
--- docs/clang-tidy/index.rst
+++ docs/clang-tidy/index.rst
@@ -73,6 +73,7 @@
means "C++11") language constructs.
``mpi-`` Checks related to MPI (Message Passing Interface).
``objc-`` Checks related to Objective-C coding conventions.
+``openmp-`` Checks related to OpenMP API.
``performance-`` Checks that target performance-related issues.
``portability-`` Checks that target portability-related issues that don't
relate to any particular coding style.
Index: docs/clang-tidy/checks/openmp-use-default-none.rst
===================================================================
--- /dev/null
+++ docs/clang-tidy/checks/openmp-use-default-none.rst
@@ -0,0 +1,170 @@
+.. title:: clang-tidy - openmp-use-default-none
+
+openmp-use-default-none
+=======================
+
+Finds OpenMP directives that are allowed to contain a ``default`` clause,
+but either don't specify it or the clause is specified but with the kind
+other than ``none``, and suggests to use the ``default(none)`` clause.
+
+Using ``default(none)`` clause forces developers to explicitly specify data
+sharing attributes for the variables referenced in the construct,
+thus making it obvious which variables are referenced, and what is their
+data sharing attribute, thus increasing readability and possibly making errors
+more easier to spot.
+
+Example
+-------
+
+.. code-block:: c++
+
+ // ``for`` directive can not have ``default`` clause, no diagnostics.
+ void n0(const int a) {
+ #pragma omp for
+ for (int b = 0; b < a; b++)
+ ;
+ }
+
+ // ``parallel`` directive.
+
+ // ``parallel`` directive can have ``default`` clause, but said clause is not
+ // specified, diagnosed.
+ void p0_0() {
+ #pragma omp parallel
+ ;
+ // WARNING: OpenMP directive ``parallel`` does not specify ``default``
+ // clause. Consider specifying ``default(none)`` clause.
+ }
+
+ // ``parallel`` directive can have ``default`` clause, and said clause is
+ // specified, with ``none`` kind, all good.
+ void p0_1() {
+ #pragma omp parallel default(none)
+ ;
+ }
+
+ // ``parallel`` directive can have ``default`` clause, and said clause is
+ // specified, but with ``shared`` kind, which is not ``none``, diagnose.
+ void p0_2() {
+ #pragma omp parallel default(shared)
+ ;
+ // WARNING: OpenMP directive ``parallel`` specifies ``default(shared)``
+ // clause.Consider using ``default(none)`` clause instead.
+ }
+
+ // ``task`` directive.
+
+ // ``task`` directive can have ``default`` clause, but said clause is not
+ // specified, diagnosed.
+ void p1_0() {
+ #pragma omp task
+ ;
+ // WARNING: OpenMP directive ``task`` does not specify ``default`` clause.
+ // Consider specifying ``default(none)`` clause.
+ }
+
+ // ``task`` directive can have ``default`` clause, and said clause is
+ // specified, with ``none`` kind, all good.
+ void p1_1() {
+ #pragma omp task default(none)
+ ;
+ }
+
+ // ``task`` directive can have ``default`` clause, and said clause is
+ // specified, but with ``shared`` kind, which is not ``none``, diagnose.
+ void p1_2() {
+ #pragma omp task default(shared)
+ ;
+ // WARNING: OpenMP directive ``task`` specifies ``default(shared)`` clause.
+ // Consider using ``default(none)`` clause instead.
+ }
+
+ // ``teams`` directive. (has to be inside of ``target`` directive)
+
+ // ``teams`` directive can have ``default`` clause, but said clause is not
+ // specified, diagnosed.
+ void p2_0() {
+ #pragma omp target
+ #pragma omp teams
+ ;
+ // WARNING: OpenMP directive ``teams`` does not specify ``default`` clause.
+ // Consider specifying ``default(none)`` clause.
+ }
+
+ // ``teams`` directive can have ``default`` clause, and said clause is
+ // specified, with ``none`` kind, all good.
+ void p2_1() {
+ #pragma omp target
+ #pragma omp teams default(none)
+ ;
+ }
+
+ // ``teams`` directive can have ``default`` clause, and said clause is
+ // specified, but with ``shared`` kind, which is not ``none``, diagnose.
+ void p2_2() {
+ #pragma omp target
+ #pragma omp teams default(shared)
+ ;
+ // WARNING: OpenMP directive ``teams`` specifies ``default(shared)`` clause.
+ // Consider using ``default(none)`` clause instead.
+ }
+
+ // ``taskloop`` directive.
+
+ // ``taskloop`` directive can have ``default`` clause, but said clause is not
+ // specified, diagnosed.
+ void p3_0(const int a) {
+ #pragma omp taskloop
+ for (int b = 0; b < a; b++)
+ ;
+ // WARNING: OpenMP directive ``taskloop`` does not specify ``default``
+ // clause. Consider specifying ``default(none)`` clause.
+ }
+
+ // ``taskloop`` directive can have ``default`` clause, and said clause is
+ // specified, with ``none`` kind, all good.
+ void p3_1(const int a) {
+ #pragma omp taskloop default(none) shared(a)
+ for (int b = 0; b < a; b++)
+ ;
+ }
+
+ // ``taskloop`` directive can have ``default`` clause, and said clause is
+ // specified, but with ``shared`` kind, which is not ``none``, diagnose.
+ void p3_2(const int a) {
+ #pragma omp taskloop default(shared)
+ for (int b = 0; b < a; b++)
+ ;
+ // WARNING: OpenMP directive ``taskloop`` specifies ``default(shared)``
+ // clause. Consider using ``default(none)`` clause instead.
+ }
+
+ // Combined directives are also properly handled:
+
+ // ``parallel`` directive can have ``default`` clause, but said clause is not
+ // specified, diagnosed.
+ void p4_0(const int a) {
+ #pragma omp parallel for
+ for (int b = 0; b < a; b++)
+ ;
+ // WARNING: OpenMP directive ``parallel for`` does not specify ``default``
+ // clause. Consider specifying ``default(none)`` clause.
+ }
+
+ // ``parallel`` directive can have ``default`` clause, and said clause is
+ // specified, with ``none`` kind, all good.
+ void p4_1(const int a) {
+ #pragma omp parallel for default(none) shared(a)
+ for (int b = 0; b < a; b++)
+ ;
+ }
+
+ // ``parallel`` directive can have ``default`` clause, and said clause is
+ // specified, but with ``shared`` kind, which is not ``none``, diagnose.
+ void p4_2(const int a) {
+ #pragma omp parallel for default(shared)
+ for (int b = 0; b < a; b++)
+ ;
+ // WARNING: OpenMP directive ``parallel for`` specifies ``default(shared)``
+ // clause. Consider using ``default(none)`` clause instead.
+ }
Index: docs/clang-tidy/checks/list.rst
===================================================================
--- docs/clang-tidy/checks/list.rst
+++ docs/clang-tidy/checks/list.rst
@@ -223,6 +223,7 @@
objc-avoid-spinlock
objc-forbidden-subclassing
objc-property-declaration
+ openmp-use-default-none
performance-faster-string-find
performance-for-range-copy
performance-implicit-conversion-in-loop
Index: docs/ReleaseNotes.rst
===================================================================
--- docs/ReleaseNotes.rst
+++ docs/ReleaseNotes.rst
@@ -67,6 +67,10 @@
Improvements to clang-tidy
--------------------------
+- New OpenMP module.
+
+ For checks specific to `OpenMP <https://www.openmp.org/>`_ API.
+
- New :doc:`abseil-duration-addition
<clang-tidy/checks/abseil-duration-addition>` check.
@@ -86,6 +90,13 @@
Checks whether there are underscores in googletest test and test case names in
test macros, which is prohibited by the Googletest FAQ.
+- New :doc:`openmp-use-default-none
+ <clang-tidy/checks/openmp-use-default-none>` check.
+
+ Finds OpenMP directives that are allowed to contain a ``default`` clause,
+ but either don't specify it or the clause is specified but with the kind
+ other than ``none``, and suggests to use the ``default(none)`` clause.
+
Improvements to include-fixer
-----------------------------
Index: clang-tidy/tool/CMakeLists.txt
===================================================================
--- clang-tidy/tool/CMakeLists.txt
+++ clang-tidy/tool/CMakeLists.txt
@@ -30,6 +30,7 @@
clangTidyMiscModule
clangTidyModernizeModule
clangTidyObjCModule
+ clangTidyOpenMPModule
clangTidyPerformanceModule
clangTidyPortabilityModule
clangTidyReadabilityModule
Index: clang-tidy/plugin/CMakeLists.txt
===================================================================
--- clang-tidy/plugin/CMakeLists.txt
+++ clang-tidy/plugin/CMakeLists.txt
@@ -21,6 +21,7 @@
clangTidyMiscModule
clangTidyModernizeModule
clangTidyObjCModule
+ clangTidyOpenMPModule
clangTidyPerformanceModule
clangTidyPortabilityModule
clangTidyReadabilityModule
Index: clang-tidy/openmp/UseDefaultNoneCheck.h
===================================================================
--- /dev/null
+++ clang-tidy/openmp/UseDefaultNoneCheck.h
@@ -0,0 +1,36 @@
+//===--- UseDefaultNoneCheck.h - clang-tidy ---------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_OPENMP_USEDEFAULTNONECHECK_H
+#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_OPENMP_USEDEFAULTNONECHECK_H
+
+#include "../ClangTidy.h"
+
+namespace clang {
+namespace tidy {
+namespace openmp {
+
+/// Finds OpenMP directives that are allowed to contain a ``default`` clause,
+/// but either don't specify it or the clause is specified but with the kind
+/// other than ``none``, and suggests to use the ``default(none)`` clause.
+///
+/// For the user-facing documentation see:
+/// http://clang.llvm.org/extra/clang-tidy/checks/openmp-use-default-none.html
+class UseDefaultNoneCheck : public ClangTidyCheck {
+public:
+ UseDefaultNoneCheck(StringRef Name, ClangTidyContext *Context)
+ : ClangTidyCheck(Name, Context) {}
+ void registerMatchers(ast_matchers::MatchFinder *Finder) override;
+ void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
+};
+
+} // namespace openmp
+} // namespace tidy
+} // namespace clang
+
+#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_OPENMP_USEDEFAULTNONECHECK_H
Index: clang-tidy/openmp/UseDefaultNoneCheck.cpp
===================================================================
--- /dev/null
+++ clang-tidy/openmp/UseDefaultNoneCheck.cpp
@@ -0,0 +1,164 @@
+//===--- UseDefaultNoneCheck.cpp - clang-tidy -----------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "UseDefaultNoneCheck.h"
+#include "clang/AST/ASTContext.h"
+#include "clang/AST/OpenMPClause.h"
+#include "clang/AST/Stmt.h"
+#include "clang/AST/StmtOpenMP.h"
+#include "clang/ASTMatchers/ASTMatchFinder.h"
+#include "clang/ASTMatchers/ASTMatchers.h"
+#include "clang/ASTMatchers/ASTMatchersMacros.h"
+
+using namespace clang::ast_matchers;
+
+namespace clang {
+
+namespace {
+
+/// Matches any ``#pragma omp`` executable directive.
+///
+/// Example:
+///
+/// \code
+/// #pragma omp parallel
+/// #pragma omp for <...>
+/// \endcode
+const ast_matchers::internal::VariadicDynCastAllOfMatcher<
+ Stmt, OMPExecutableDirective>
+ ompExecutableDirective;
+
+/// Given OpenMP directive, matches the first clause (out of all specified),
+/// that matches InnerMatcher.
+///
+/// Example:
+///
+/// Given ``ompExecutableDirective(hasClause(anything()))``:
+///
+/// \code
+/// #pragma omp parallel // <- no clauses, no match
+/// #pragma omp parallel default(none) // <- has clauses, match
+/// \endcode
+AST_MATCHER_P(OMPExecutableDirective, hasClause,
+ ast_matchers::internal::Matcher<OMPClause>, InnerMatcher) {
+ ArrayRef<OMPClause *> Clauses = Node.clauses();
+ return matchesFirstInPointerRange(InnerMatcher, Clauses.begin(),
+ Clauses.end(), Finder, Builder);
+}
+
+/// Matches OpenMP ``default`` clause.
+///
+/// Example:
+///
+/// Given, `ompDefaultClause()`:
+///
+/// \code
+/// #pragma omp parallel default(none) // <- will match ``default(none)``
+/// #pragma omp parallel default(shared) // <- will match ``default(shared)``
+/// #pragma omp parallel // <- no match
+/// \endcode
+const ast_matchers::internal::VariadicDynCastAllOfMatcher<OMPClause,
+ OMPDefaultClause>
+ ompDefaultClause;
+
+/// Matches if the OpenMP ``default`` clause has ``none`` kind specified.
+///
+/// Example:
+///
+/// Given, `ompDefaultClause(isNoneKind())`:
+///
+/// \code
+/// #pragma omp parallel default(none) // <- match
+/// #pragma omp parallel default(shared) // <- no match
+/// \endcode
+AST_MATCHER(OMPDefaultClause, isNoneKind) {
+ return Node.getDefaultKind() == OMPC_DEFAULT_none;
+}
+
+/// Matches if the OpenMP directive is allowed to contain the specified OpenMP
+/// clause kind.
+///
+/// Example:
+///
+/// Given,
+/// ``ompExecutableDirective(isAllowedToContainClause(ompDefaultClause()))``:
+///
+/// \code
+/// #pragma omp parallel // <- match
+/// #pragma omp parallel for // <- match
+/// #pragma omp for // <- no match
+/// \endcode
+///
+/// NOTE: while the matcher takes the *matcher* for the OpenMP clause,
+/// it does *NOT* actually match that matcher. It only fetches the
+/// desired OpenMP clause kind out of the matchers return type,
+/// and uses said kind for the decision.
+AST_MATCHER_P(OMPExecutableDirective, isAllowedToContainClause,
+ ast_matchers::internal::Matcher<OMPClause>, ClauseMatcher) {
+ // Note that we have recieved a *matcher* for the clause, not the
+ // OpenMPClauseKind. We now need to extract the 'return' type of said matcher,
+ // and convert it to the OpenMPClauseKind, so we can finally use that.
+
+ ast_matchers::internal::DynTypedMatcher::MatcherIDType ID =
+ ClauseMatcher.getID();
+ ast_type_traits::ASTNodeKind NodeKind = ID.first;
+ assert(!NodeKind.isNone() &&
+ "expected to have a matcher for some OpenMP clause, not the matcher "
+ "for the OMPClause itself");
+ OpenMPClauseKind CKind = NodeKind.getOMPClauseKind();
+ assert(CKind != OMPC_unknown && "Bad ClauseMatcher specified.");
+ return isAllowedClauseForDirective(Node.getDirectiveKind(), CKind);
+}
+
+} // namespace
+
+namespace tidy {
+namespace openmp {
+
+void UseDefaultNoneCheck::registerMatchers(MatchFinder *Finder) {
+ // Don't register the check if OpenMP is not enabled; the OpenMP pragmas are
+ // completely ignored then, so no OpenMP entires will be present in the AST.
+ if (!getLangOpts().OpenMP)
+ return;
+
+ Finder->addMatcher(
+ ompExecutableDirective(
+ allOf(isAllowedToContainClause(ompDefaultClause()),
+ anyOf(unless(hasClause(ompDefaultClause())),
+ hasClause(ompDefaultClause(unless(isNoneKind()))
+ .bind("clause")))))
+ .bind("directive"),
+ this);
+}
+
+void UseDefaultNoneCheck::check(const MatchFinder::MatchResult &Result) {
+ const auto *Directive =
+ Result.Nodes.getNodeAs<OMPExecutableDirective>("directive");
+ assert(Directive != nullptr && "Expected to match some directive.");
+
+ if (const auto *Clause = Result.Nodes.getNodeAs<OMPDefaultClause>("clause")) {
+ diag(Directive->getBeginLoc(),
+ "OpenMP directive '%0' specifies 'default(%1)' clause. Consider using "
+ "'default(none)' clause instead.")
+ << getOpenMPDirectiveName(Directive->getDirectiveKind())
+ << getOpenMPSimpleClauseTypeName(Clause->getClauseKind(),
+ Clause->getDefaultKind());
+ diag(Clause->getBeginLoc(), "Existing 'default' clause is specified here.",
+ DiagnosticIDs::Note);
+ return;
+ }
+
+ diag(Directive->getBeginLoc(),
+ "OpenMP directive '%0' does not specify 'default' clause. Consider "
+ "specifying 'default(none)' clause.")
+ << getOpenMPDirectiveName(Directive->getDirectiveKind());
+}
+
+} // namespace openmp
+} // namespace tidy
+} // namespace clang
Index: clang-tidy/openmp/OpenMPTidyModule.cpp
===================================================================
--- /dev/null
+++ clang-tidy/openmp/OpenMPTidyModule.cpp
@@ -0,0 +1,38 @@
+//===--- OpenMPTidyModule.cpp - clang-tidy--------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "../ClangTidy.h"
+#include "../ClangTidyModule.h"
+#include "../ClangTidyModuleRegistry.h"
+#include "UseDefaultNoneCheck.h"
+
+namespace clang {
+namespace tidy {
+namespace openmp {
+
+/// This module is for OpenMP-specific checks.
+class OpenMPModule : public ClangTidyModule {
+public:
+ void addCheckFactories(ClangTidyCheckFactories &CheckFactories) override {
+ CheckFactories.registerCheck<UseDefaultNoneCheck>(
+ "openmp-use-default-none");
+ }
+};
+
+// Register the OpenMPTidyModule using this statically initialized variable.
+static ClangTidyModuleRegistry::Add<OpenMPModule>
+ X("openmp-module", "Adds OpenMP-specific checks.");
+
+} // namespace openmp
+
+// This anchor is used to force the linker to link in the generated object file
+// and thus register the OpenMPModule.
+volatile int OpenMPModuleAnchorSource = 0;
+
+} // namespace tidy
+} // namespace clang
Index: clang-tidy/openmp/CMakeLists.txt
===================================================================
--- /dev/null
+++ clang-tidy/openmp/CMakeLists.txt
@@ -0,0 +1,12 @@
+set(LLVM_LINK_COMPONENTS support)
+
+add_clang_library(clangTidyOpenMPModule
+ OpenMPTidyModule.cpp
+ UseDefaultNoneCheck.cpp
+
+ LINK_LIBS
+ clangAST
+ clangASTMatchers
+ clangBasic
+ clangTidy
+ )
Index: clang-tidy/ClangTidyForceLinker.h
===================================================================
--- clang-tidy/ClangTidyForceLinker.h
+++ clang-tidy/ClangTidyForceLinker.h
@@ -77,6 +77,11 @@
MPIModuleAnchorSource;
#endif
+// This anchor is used to force the linker to link the OpenMPModule.
+extern volatile int OpenMPModuleAnchorSource;
+static int LLVM_ATTRIBUTE_UNUSED OpenMPModuleAnchorDestination =
+ OpenMPModuleAnchorSource;
+
// This anchor is used to force the linker to link the PerformanceModule.
extern volatile int PerformanceModuleAnchorSource;
static int LLVM_ATTRIBUTE_UNUSED PerformanceModuleAnchorDestination =
Index: clang-tidy/CMakeLists.txt
===================================================================
--- clang-tidy/CMakeLists.txt
+++ clang-tidy/CMakeLists.txt
@@ -49,6 +49,7 @@
add_subdirectory(mpi)
endif()
add_subdirectory(objc)
+add_subdirectory(openmp)
add_subdirectory(performance)
add_subdirectory(plugin)
add_subdirectory(portability)
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