Merge branch 'llvm:main' into llvmgh-101657

.github/workflows/release-binaries.yml

@@ -49,7 +49,7 @@ jobs:
   prepare:
     name: Prepare to build binaries
     runs-on: ${{ inputs.runs-on }}
-    if: github.repository == 'llvm/llvm-project'
+    if: github.repository_owner == 'llvm'
     outputs:
       release-version: ${{ steps.vars.outputs.release-version }}
       ref: ${{ steps.vars.outputs.ref }}
@@ -177,7 +177,7 @@ jobs:
   build-release-package:
     name: "Build Release Package"
     needs: prepare
-    if: github.repository == 'llvm/llvm-project'
+    if: github.repository_owner == 'llvm'
     runs-on: ${{ needs.prepare.outputs.build-runs-on }}
     steps:
 
@@ -327,7 +327,7 @@ jobs:
       - prepare
       - build-release-package
     if: >-
-      github.repository == 'llvm/llvm-project'
+      github.repository_owner == 'llvm'
     runs-on: ${{ needs.prepare.outputs.test-runs-on }}
     steps:
     - name: Checkout Actions

clang-tools-extra/clang-reorder-fields/ReorderFieldsAction.cpp

@@ -118,6 +118,29 @@ findMembersUsedInInitExpr(const CXXCtorInitializer *Initializer,
   return Results;
 }
 
+/// Returns the start of the leading comments before `Loc`.
+static SourceLocation getStartOfLeadingComment(SourceLocation Loc,
+                                               const SourceManager &SM,
+                                               const LangOptions &LangOpts) {
+  // We consider any leading comment token that is on the same line or
+  // indented similarly to the first comment to be part of the leading comment.
+  const unsigned Line = SM.getPresumedLineNumber(Loc);
+  const unsigned Column = SM.getPresumedColumnNumber(Loc);
+  std::optional<Token> Tok =
+      Lexer::findPreviousToken(Loc, SM, LangOpts, /*IncludeComments=*/true);
+  while (Tok && Tok->is(tok::comment)) {
+    const SourceLocation CommentLoc =
+        Lexer::GetBeginningOfToken(Tok->getLocation(), SM, LangOpts);
+    if (SM.getPresumedLineNumber(CommentLoc) != Line &&
+        SM.getPresumedColumnNumber(CommentLoc) != Column) {
+      break;
+    }
+    Loc = CommentLoc;
+    Tok = Lexer::findPreviousToken(Loc, SM, LangOpts, /*IncludeComments=*/true);
+  }
+  return Loc;
+}
+
 /// Returns the end of the trailing comments after `Loc`.
 static SourceLocation getEndOfTrailingComment(SourceLocation Loc,
                                               const SourceManager &SM,
@@ -159,6 +182,7 @@ static SourceRange getFullFieldSourceRange(const FieldDecl &Field,
     if (CurrentToken->is(tok::semi))
       break;
   }
+  Begin = getStartOfLeadingComment(Begin, SM, LangOpts);
   End = getEndOfTrailingComment(End, SM, LangOpts);
   return SourceRange(Begin, End);
 }

clang-tools-extra/clang-tidy/misc/UnusedUsingDeclsCheck.cpp

@@ -10,6 +10,7 @@
 #include "clang/AST/ASTContext.h"
 #include "clang/AST/Decl.h"
 #include "clang/ASTMatchers/ASTMatchFinder.h"
+#include "clang/ASTMatchers/ASTMatchers.h"
 #include "clang/Lex/Lexer.h"
 
 using namespace clang::ast_matchers;

clang-tools-extra/clang-tidy/modernize/UseIntegerSignComparisonCheck.cpp

@@ -80,11 +80,13 @@ UseIntegerSignComparisonCheck::UseIntegerSignComparisonCheck(
     : ClangTidyCheck(Name, Context),
       IncludeInserter(Options.getLocalOrGlobal("IncludeStyle",
                                                utils::IncludeSorter::IS_LLVM),
-                      areDiagsSelfContained()) {}
+                      areDiagsSelfContained()),
+      EnableQtSupport(Options.get("EnableQtSupport", false)) {}
 
 void UseIntegerSignComparisonCheck::storeOptions(
     ClangTidyOptions::OptionMap &Opts) {
   Options.store(Opts, "IncludeStyle", IncludeInserter.getStyle());
+  Options.store(Opts, "EnableQtSupport", EnableQtSupport);
 }
 
 void UseIntegerSignComparisonCheck::registerMatchers(MatchFinder *Finder) {
@@ -154,8 +156,17 @@ void UseIntegerSignComparisonCheck::check(
   DiagnosticBuilder Diag =
       diag(BinaryOp->getBeginLoc(),
            "comparison between 'signed' and 'unsigned' integers");
-  const std::string CmpNamespace = ("std::" + parseOpCode(OpCode)).str();
-  const std::string CmpHeader = "<utility>";
+  std::string CmpNamespace;
+  llvm::StringRef CmpHeader;
+
+  if (getLangOpts().CPlusPlus20) {
+    CmpHeader = "<utility>";
+    CmpNamespace = llvm::Twine("std::" + parseOpCode(OpCode)).str();
+  } else if (getLangOpts().CPlusPlus17 && EnableQtSupport) {
+    CmpHeader = "<QtCore/q20utility.h>";
+    CmpNamespace = llvm::Twine("q20::" + parseOpCode(OpCode)).str();
+  }
+
   // Prefer modernize-use-integer-sign-comparison when C++20 is available!
   Diag << FixItHint::CreateReplacement(
       CharSourceRange(R1, SubExprLHS != nullptr),

clang-tools-extra/clang-tidy/modernize/UseIntegerSignComparisonCheck.h

@@ -30,11 +30,12 @@ class UseIntegerSignComparisonCheck : public ClangTidyCheck {
   void registerMatchers(ast_matchers::MatchFinder *Finder) override;
   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
   bool isLanguageVersionSupported(const LangOptions &LangOpts) const override {
-    return LangOpts.CPlusPlus20;
+    return LangOpts.CPlusPlus20 || (LangOpts.CPlusPlus17 && EnableQtSupport);
   }
 
 private:
   utils::IncludeInserter IncludeInserter;
+  const bool EnableQtSupport;
 };
 
 } // namespace clang::tidy::modernize

clang-tools-extra/clang-tidy/utils/LexerUtils.cpp

@@ -17,25 +17,16 @@ namespace clang::tidy::utils::lexer {
 std::pair<Token, SourceLocation>
 getPreviousTokenAndStart(SourceLocation Location, const SourceManager &SM,
                          const LangOptions &LangOpts, bool SkipComments) {
-  Token Token;
-  Token.setKind(tok::unknown);
+  const std::optional<Token> Tok =
+      Lexer::findPreviousToken(Location, SM, LangOpts, !SkipComments);
 
-  Location = Location.getLocWithOffset(-1);
-  if (Location.isInvalid())
-    return {Token, Location};
-
-  const auto StartOfFile = SM.getLocForStartOfFile(SM.getFileID(Location));
-  while (Location != StartOfFile) {
-    Location = Lexer::GetBeginningOfToken(Location, SM, LangOpts);
-    if (!Lexer::getRawToken(Location, Token, SM, LangOpts) &&
-        (!SkipComments || !Token.is(tok::comment))) {
-      break;
-    }
-    if (Location == StartOfFile)
-      return {Token, Location};
-    Location = Location.getLocWithOffset(-1);
+  if (Tok.has_value()) {
+    return {*Tok, Lexer::GetBeginningOfToken(Tok->getLocation(), SM, LangOpts)};
   }
-  return {Token, Location};
+
+  Token Token;
+  Token.setKind(tok::unknown);
+  return {Token, SourceLocation()};
 }
 
 Token getPreviousToken(SourceLocation Location, const SourceManager &SM,

clang-tools-extra/clangd/GlobalCompilationDatabase.cpp

@@ -830,6 +830,16 @@ bool OverlayCDB::setCompileCommand(PathRef File,
   return true;
 }
 
+std::unique_ptr<ProjectModules>
+OverlayCDB::getProjectModules(PathRef File) const {
+  auto MDB = DelegatingCDB::getProjectModules(File);
+  MDB->setCommandMangler([&Mangler = Mangler](tooling::CompileCommand &Command,
+                                              PathRef CommandPath) {
+    Mangler(Command, CommandPath);
+  });
+  return MDB;
+}
+
 DelegatingCDB::DelegatingCDB(const GlobalCompilationDatabase *Base)
     : Base(Base) {
   if (Base)

clang-tools-extra/clangd/GlobalCompilationDatabase.h

@@ -209,6 +209,9 @@ class OverlayCDB : public DelegatingCDB {
   setCompileCommand(PathRef File,
                     std::optional<tooling::CompileCommand> CompilationCommand);
 
+  std::unique_ptr<ProjectModules>
+  getProjectModules(PathRef File) const override;
+
 private:
   mutable std::mutex Mutex;
   llvm::StringMap<tooling::CompileCommand> Commands; /* GUARDED_BY(Mut) */

clang-tools-extra/clangd/ProjectModules.h

@@ -9,8 +9,10 @@
 #ifndef LLVM_CLANG_TOOLS_EXTRA_CLANGD_PROJECTMODULES_H
 #define LLVM_CLANG_TOOLS_EXTRA_CLANGD_PROJECTMODULES_H
 
+#include "support/Function.h"
 #include "support/Path.h"
 #include "support/ThreadsafeFS.h"
+#include "clang/Tooling/CompilationDatabase.h"
 
 #include <memory>
 
@@ -36,11 +38,16 @@ namespace clangd {
 /// `<primary-module-name>[:partition-name]`. So module names covers partitions.
 class ProjectModules {
 public:
+  using CommandMangler =
+      llvm::unique_function<void(tooling::CompileCommand &, PathRef) const>;
+
   virtual std::vector<std::string> getRequiredModules(PathRef File) = 0;
   virtual PathRef
   getSourceForModuleName(llvm::StringRef ModuleName,
                          PathRef RequiredSrcFile = PathRef()) = 0;
 
+  virtual void setCommandMangler(CommandMangler Mangler) {}
+
   virtual ~ProjectModules() = default;
 };
 

clang-tools-extra/clangd/ScanningProjectModules.cpp

@@ -48,7 +48,8 @@ class ModuleDependencyScanner {
   };
 
   /// Scanning the single file specified by \param FilePath.
-  std::optional<ModuleDependencyInfo> scan(PathRef FilePath);
+  std::optional<ModuleDependencyInfo>
+  scan(PathRef FilePath, const ProjectModules::CommandMangler &Mangler);
 
   /// Scanning every source file in the current project to get the
   /// <module-name> to <module-unit-source> map.
@@ -57,7 +58,7 @@ class ModuleDependencyScanner {
   /// a global module dependency scanner to monitor every file. Or we
   /// can simply require the build systems (or even the end users)
   /// to provide the map.
-  void globalScan();
+  void globalScan(const ProjectModules::CommandMangler &Mangler);
 
   /// Get the source file from the module name. Note that the language
   /// guarantees all the module names are unique in a valid program.
@@ -69,7 +70,9 @@ class ModuleDependencyScanner {
 
   /// Return the direct required modules. Indirect required modules are not
   /// included.
-  std::vector<std::string> getRequiredModules(PathRef File);
+  std::vector<std::string>
+  getRequiredModules(PathRef File,
+                     const ProjectModules::CommandMangler &Mangler);
 
 private:
   std::shared_ptr<const clang::tooling::CompilationDatabase> CDB;
@@ -87,7 +90,8 @@ class ModuleDependencyScanner {
 };
 
 std::optional<ModuleDependencyScanner::ModuleDependencyInfo>
-ModuleDependencyScanner::scan(PathRef FilePath) {
+ModuleDependencyScanner::scan(PathRef FilePath,
+                              const ProjectModules::CommandMangler &Mangler) {
   auto Candidates = CDB->getCompileCommands(FilePath);
   if (Candidates.empty())
     return std::nullopt;
@@ -97,10 +101,8 @@ ModuleDependencyScanner::scan(PathRef FilePath) {
   // DirectoryBasedGlobalCompilationDatabase::getCompileCommand.
   tooling::CompileCommand Cmd = std::move(Candidates.front());
 
-  static int StaticForMainAddr; // Just an address in this process.
-  Cmd.CommandLine.push_back("-resource-dir=" +
-                            CompilerInvocation::GetResourcesPath(
-                                "clangd", (void *)&StaticForMainAddr));
+  if (Mangler)
+    Mangler(Cmd, FilePath);
 
   using namespace clang::tooling::dependencies;
 
@@ -130,9 +132,10 @@ ModuleDependencyScanner::scan(PathRef FilePath) {
   return Result;
 }
 
-void ModuleDependencyScanner::globalScan() {
+void ModuleDependencyScanner::globalScan(
+    const ProjectModules::CommandMangler &Mangler) {
   for (auto &File : CDB->getAllFiles())
-    scan(File);
+    scan(File, Mangler);
 
   GlobalScanned = true;
 }
@@ -150,9 +153,9 @@ PathRef ModuleDependencyScanner::getSourceForModuleName(
   return {};
 }
 
-std::vector<std::string>
-ModuleDependencyScanner::getRequiredModules(PathRef File) {
-  auto ScanningResult = scan(File);
+std::vector<std::string> ModuleDependencyScanner::getRequiredModules(
+    PathRef File, const ProjectModules::CommandMangler &Mangler) {
+  auto ScanningResult = scan(File, Mangler);
   if (!ScanningResult)
     return {};
 
@@ -177,20 +180,25 @@ class ScanningAllProjectModules : public ProjectModules {
   ~ScanningAllProjectModules() override = default;
 
   std::vector<std::string> getRequiredModules(PathRef File) override {
-    return Scanner.getRequiredModules(File);
+    return Scanner.getRequiredModules(File, Mangler);
+  }
+
+  void setCommandMangler(CommandMangler Mangler) override {
+    this->Mangler = std::move(Mangler);
   }
 
   /// RequiredSourceFile is not used intentionally. See the comments of
   /// ModuleDependencyScanner for detail.
   PathRef
   getSourceForModuleName(llvm::StringRef ModuleName,
                          PathRef RequiredSourceFile = PathRef()) override {
-    Scanner.globalScan();
+    Scanner.globalScan(Mangler);
     return Scanner.getSourceForModuleName(ModuleName);
   }
 
 private:
   ModuleDependencyScanner Scanner;
+  CommandMangler Mangler;
 };
 
 std::unique_ptr<ProjectModules> scanningProjectModules(

clang-tools-extra/clangd/unittests/PrerequisiteModulesTest.cpp

@@ -11,13 +11,14 @@
 /// code mode.
 #ifndef _WIN32
 
-#include "ModulesBuilder.h"
-#include "ScanningProjectModules.h"
 #include "Annotations.h"
 #include "CodeComplete.h"
 #include "Compiler.h"
+#include "ModulesBuilder.h"
+#include "ScanningProjectModules.h"
 #include "TestTU.h"
 #include "support/ThreadsafeFS.h"
+#include "llvm/ADT/StringRef.h"
 #include "llvm/Support/FileSystem.h"
 #include "llvm/Support/raw_ostream.h"
 #include "gmock/gmock.h"
@@ -191,6 +192,41 @@ export module M;
   EXPECT_TRUE(MInfo->canReuse(*Invocation, FS.view(TestDir)));
 }
 
+TEST_F(PrerequisiteModulesTests, ModuleWithArgumentPatch) {
+  MockDirectoryCompilationDatabase CDB(TestDir, FS);
+
+  CDB.ExtraClangFlags.push_back("-invalid-unknown-flag");
+
+  CDB.addFile("Dep.cppm", R"cpp(
+export module Dep;
+  )cpp");
+
+  CDB.addFile("M.cppm", R"cpp(
+export module M;
+import Dep;
+  )cpp");
+
+  // An invalid flag will break the module compilation and the
+  // getRequiredModules would return an empty array
+  auto ProjectModules = CDB.getProjectModules(getFullPath("M.cppm"));
+  EXPECT_TRUE(
+      ProjectModules->getRequiredModules(getFullPath("M.cppm")).empty());
+
+  // Set the mangler to filter out the invalid flag
+  ProjectModules->setCommandMangler(
+      [](tooling::CompileCommand &Command, PathRef) {
+        auto const It =
+            std::find(Command.CommandLine.begin(), Command.CommandLine.end(),
+                      "-invalid-unknown-flag");
+        Command.CommandLine.erase(It);
+      });
+
+  // And now it returns a non-empty list of required modules since the
+  // compilation succeeded
+  EXPECT_FALSE(
+      ProjectModules->getRequiredModules(getFullPath("M.cppm")).empty());
+}
+
 TEST_F(PrerequisiteModulesTests, ModuleWithDepTest) {
   MockDirectoryCompilationDatabase CDB(TestDir, FS);
 
@@ -435,7 +471,7 @@ void func() {
                     /*Callback=*/nullptr);
   EXPECT_TRUE(Preamble);
   EXPECT_TRUE(Preamble->RequiredModules);
-  
+
   auto Result = codeComplete(getFullPath("Use.cpp"), Test.point(),
                              Preamble.get(), Use, {});
   EXPECT_FALSE(Result.Completions.empty());
@@ -474,7 +510,7 @@ void func() {
                     /*Callback=*/nullptr);
   EXPECT_TRUE(Preamble);
   EXPECT_TRUE(Preamble->RequiredModules);
-  
+
   auto Result = signatureHelp(getFullPath("Use.cpp"), Test.point(),
                               *Preamble.get(), Use, MarkupKind::PlainText);
   EXPECT_FALSE(Result.signatures.empty());