[NFC][clang] Move simplifyConstraint to TargetInfo.cpp

bolt/docs/CommandLineArgumentReference.md

@@ -138,12 +138,6 @@
   Dump function CFGs to graphviz format after each stage;enable '-print-loops'
   for color-coded blocks
 
-- `--dump-dot-func=<func1,func2,func3...>`
-
-  Dump function CFGs to graphviz format for specified functions only;
-  takes function name patterns (regex supported). Note: C++ function names
-  must be passed using their mangled names
-
 - `--dump-linux-exceptions`
 
   Dump Linux kernel exception table

bolt/include/bolt/Utils/CommandLineOpts.h

@@ -15,12 +15,6 @@
 
 #include "llvm/Support/CommandLine.h"
 
-namespace llvm {
-namespace bolt {
-class BinaryFunction;
-}
-} // namespace llvm
-
 namespace opts {
 
 enum HeatmapModeKind {
@@ -106,9 +100,6 @@ extern llvm::cl::opt<unsigned> Verbosity;
 /// Return true if we should process all functions in the binary.
 bool processAllFunctions();
 
-/// Return true if we should dump dot graphs for the given function.
-bool shouldDumpDot(const llvm::bolt::BinaryFunction &Function);
-
 enum GadgetScannerKind { GS_PACRET, GS_PAUTH, GS_ALL };
 
 extern llvm::cl::bits<GadgetScannerKind> GadgetScannersToRun;

bolt/lib/Rewrite/BinaryPassManager.cpp

@@ -52,7 +52,6 @@ namespace opts {
 extern cl::opt<bool> PrintAll;
 extern cl::opt<bool> PrintDynoStats;
 extern cl::opt<bool> DumpDotAll;
-extern bool shouldDumpDot(const bolt::BinaryFunction &Function);
 extern cl::opt<std::string> AsmDump;
 extern cl::opt<bolt::PLTCall::OptType> PLT;
 extern cl::opt<bolt::IdenticalCodeFolding::ICFLevel, false,
@@ -341,7 +340,7 @@ Error BinaryFunctionPassManager::runPasses() {
 
       Function.print(BC.outs(), Message);
 
-      if (opts::shouldDumpDot(Function))
+      if (opts::DumpDotAll)
         Function.dumpGraphForPass(PassIdName);
     }
   }

bolt/lib/Rewrite/RewriteInstance.cpp

@@ -115,35 +115,6 @@ cl::opt<bool> DumpDotAll(
              "enable '-print-loops' for color-coded blocks"),
     cl::Hidden, cl::cat(BoltCategory));
 
-cl::list<std::string> DumpDotFunc(
-    "dump-dot-func", cl::CommaSeparated,
-    cl::desc(
-        "dump function CFGs to graphviz format for specified functions only;"
-        "takes function name patterns (regex supported)"),
-    cl::value_desc("func1,func2,func3,..."), cl::Hidden, cl::cat(BoltCategory));
-
-bool shouldDumpDot(const bolt::BinaryFunction &Function) {
-  // If dump-dot-all is enabled, dump all functions
-  if (DumpDotAll)
-    return !Function.isIgnored();
-
-  // If no specific functions specified in dump-dot-func, don't dump any
-  if (DumpDotFunc.empty())
-    return false;
-
-  if (Function.isIgnored())
-    return false;
-
-  // Check if function matches any of the specified patterns
-  for (const std::string &Name : DumpDotFunc) {
-    if (Function.hasNameRegex(Name)) {
-      return true;
-    }
-  }
-
-  return false;
-}
-
 static cl::list<std::string>
 ForceFunctionNames("funcs",
   cl::CommaSeparated,
@@ -3598,7 +3569,7 @@ void RewriteInstance::postProcessFunctions() {
     if (opts::PrintAll || opts::PrintCFG)
       Function.print(BC->outs(), "after building cfg");
 
-    if (opts::shouldDumpDot(Function))
+    if (opts::DumpDotAll)
       Function.dumpGraphForPass("00_build-cfg");
 
     if (opts::PrintLoopInfo) {

bolt/test/Inputs/multi-func.cpp

@@ -1,24 +0,0 @@
-#include <iostream>
-
-// Multiple functions to test selective dumping
-int add(int a, int b) { return a + b; }
-
-int multiply(int a, int b) { return a * b; }
-
-int main_helper() {
-  std::cout << "Helper function" << std::endl;
-  return 42;
-}
-
-int main_secondary() { return add(5, 3); }
-
-void other_function() { std::cout << "Other function" << std::endl; }
-
-int main() {
-  int result = add(10, 20);
-  result = multiply(result, 2);
-  main_helper();
-  main_secondary();
-  other_function();
-  return result;
-}

bolt/test/dump-dot-func.test

@@ -1,52 +0,0 @@
-# Test the --dump-dot-func option with multiple functions 
-# (includes tests for both mangled/unmangled names)
-
-RUN: %clang++ %p/Inputs/multi-func.cpp -o %t.exe -Wl,-q
-
-# Test 1: --dump-dot-func with specific function name (mangled)
-RUN: llvm-bolt %t.exe -o %t.bolt1 --dump-dot-func=_Z3addii -v=1 2>&1 | FileCheck %s --check-prefix=ADD
-
-# Test 2: --dump-dot-func with regex pattern (main.*)
-RUN: llvm-bolt %t.exe -o %t.bolt2 --dump-dot-func="main.*" -v=1 2>&1 | FileCheck %s --check-prefix=MAIN-REGEX
-
-# Test 3: --dump-dot-func with multiple specific functions (mangled names)
-RUN: llvm-bolt %t.exe -o %t.bolt3 --dump-dot-func=_Z3addii,_Z8multiplyii -v=1 2>&1 | FileCheck %s --check-prefix=MULTI
-
-# Test 4: No option specified should create no dot files
-RUN: llvm-bolt %t.exe -o %t.bolt4 2>&1 | FileCheck %s --check-prefix=NONE
-
-# Test 5: --dump-dot-func with non-existent function
-RUN: llvm-bolt %t.exe -o %t.bolt5 --dump-dot-func=nonexistent -v=1 2>&1 | FileCheck %s --check-prefix=NONEXISTENT
-
-# Test 6: Backward compatibility - --dump-dot-all should still work
-RUN: llvm-bolt %t.exe -o %t.bolt6 --dump-dot-all -v=1 2>&1 | FileCheck %s --check-prefix=ALL
-
-# Test 7: Test with unmangled function name (main function)
-RUN: llvm-bolt %t.exe -o %t.bolt7 --dump-dot-func=main -v=1 2>&1 | FileCheck %s --check-prefix=MAIN-UNMANGLED
-
-# Check that specific functions are dumped
-ADD: BOLT-INFO: dumping CFG to _Z3addii-00_build-cfg.dot
-ADD-NOT: BOLT-INFO: dumping CFG to main-00_build-cfg.dot
-ADD-NOT: BOLT-INFO: dumping CFG to _Z8multiplyii-00_build-cfg.dot
-ADD-NOT: BOLT-INFO: dumping CFG to _Z11main_helperv-00_build-cfg.dot
-
-MAIN-REGEX-DAG: BOLT-INFO: dumping CFG to main-00_build-cfg.dot
-MAIN-REGEX-NOT: BOLT-INFO: dumping CFG to _Z3addii-00_build-cfg.dot
-MAIN-REGEX-NOT: BOLT-INFO: dumping CFG to _Z8multiplyii-00_build-cfg.dot
-
-MULTI-DAG: BOLT-INFO: dumping CFG to _Z3addii-00_build-cfg.dot
-MULTI-DAG: BOLT-INFO: dumping CFG to _Z8multiplyii-00_build-cfg.dot
-MULTI-NOT: BOLT-INFO: dumping CFG to main-00_build-cfg.dot
-MULTI-NOT: BOLT-INFO: dumping CFG to _Z11main_helperv-00_build-cfg.dot
-
-# Should be no dumping messages when no option is specified
-NONE-NOT: BOLT-INFO: dumping CFG
-
-# Should be no dumping messages for non-existent function
-NONEXISTENT-NOT: BOLT-INFO: dumping CFG
-
-ALL: BOLT-INFO: dumping CFG to main-00_build-cfg.dot
-
-MAIN-UNMANGLED: BOLT-INFO: dumping CFG to main-00_build-cfg.dot
-MAIN-UNMANGLED-NOT: BOLT-INFO: dumping CFG to _Z3addii-00_build-cfg.dot
-MAIN-UNMANGLED-NOT: BOLT-INFO: dumping CFG to _Z8multiplyii-00_build-cfg.dot

clang-tools-extra/clang-tidy/bugprone/MultipleNewInOneExpressionCheck.cpp

@@ -15,12 +15,14 @@ using namespace clang::ast_matchers;
 
 namespace clang::tidy::bugprone {
 
+namespace {
+
 // Determine if the result of an expression is "stored" in some way.
 // It is true if the value is stored into a variable or used as initialization
 // or passed to a function or constructor.
 // For this use case compound assignments are not counted as a "store" (the 'E'
 // expression should have pointer type).
-static bool isExprValueStored(const Expr *E, ASTContext &C) {
+bool isExprValueStored(const Expr *E, ASTContext &C) {
   E = E->IgnoreParenCasts();
   // Get first non-paren, non-cast parent.
   ParentMapContext &PMap = C.getParentMapContext();
@@ -47,8 +49,6 @@ static bool isExprValueStored(const Expr *E, ASTContext &C) {
   return isa<CallExpr, CXXConstructExpr>(ParentE);
 }
 
-namespace {
-
 AST_MATCHER_P(CXXTryStmt, hasHandlerFor,
               ast_matchers::internal::Matcher<QualType>, InnerMatcher) {
   for (unsigned NH = Node.getNumHandlers(), I = 0; I < NH; ++I) {

clang-tools-extra/clang-tidy/bugprone/SuspiciousMissingCommaCheck.cpp

@@ -14,8 +14,10 @@ using namespace clang::ast_matchers;
 
 namespace clang::tidy::bugprone {
 
-static bool isConcatenatedLiteralsOnPurpose(ASTContext *Ctx,
-                                            const StringLiteral *Lit) {
+namespace {
+
+bool isConcatenatedLiteralsOnPurpose(ASTContext *Ctx,
+                                     const StringLiteral *Lit) {
   // String literals surrounded by parentheses are assumed to be on purpose.
   //    i.e.:  const char* Array[] = { ("a" "b" "c"), "d", [...] };
 
@@ -56,8 +58,6 @@ static bool isConcatenatedLiteralsOnPurpose(ASTContext *Ctx,
   return false;
 }
 
-namespace {
-
 AST_MATCHER_P(StringLiteral, isConcatenatedLiteral, unsigned,
               MaxConcatenatedTokens) {
   return Node.getNumConcatenated() > 1 &&

clang-tools-extra/clang-tidy/cert/StrToNumCheck.cpp

@@ -46,9 +46,7 @@ enum class ConversionKind {
   ToLongDouble
 };
 
-} // namespace
-
-static ConversionKind classifyConversionFunc(const FunctionDecl *FD) {
+ConversionKind classifyConversionFunc(const FunctionDecl *FD) {
   return llvm::StringSwitch<ConversionKind>(FD->getName())
       .Cases("atoi", "atol", ConversionKind::ToInt)
       .Case("atoll", ConversionKind::ToLongInt)
@@ -56,8 +54,8 @@ static ConversionKind classifyConversionFunc(const FunctionDecl *FD) {
       .Default(ConversionKind::None);
 }
 
-static ConversionKind classifyFormatString(StringRef Fmt, const LangOptions &LO,
-                                           const TargetInfo &TI) {
+ConversionKind classifyFormatString(StringRef Fmt, const LangOptions &LO,
+                                    const TargetInfo &TI) {
   // Scan the format string for the first problematic format specifier, then
   // report that as the conversion type. This will miss additional conversion
   // specifiers, but that is acceptable behavior.
@@ -130,7 +128,7 @@ static ConversionKind classifyFormatString(StringRef Fmt, const LangOptions &LO,
   return H.get();
 }
 
-static StringRef classifyConversionType(ConversionKind K) {
+StringRef classifyConversionType(ConversionKind K) {
   switch (K) {
   case ConversionKind::None:
     llvm_unreachable("Unexpected conversion kind");
@@ -150,7 +148,7 @@ static StringRef classifyConversionType(ConversionKind K) {
   llvm_unreachable("Unknown conversion kind");
 }
 
-static StringRef classifyReplacement(ConversionKind K) {
+StringRef classifyReplacement(ConversionKind K) {
   switch (K) {
   case ConversionKind::None:
     llvm_unreachable("Unexpected conversion kind");
@@ -175,6 +173,7 @@ static StringRef classifyReplacement(ConversionKind K) {
   }
   llvm_unreachable("Unknown conversion kind");
 }
+} // unnamed namespace
 
 void StrToNumCheck::check(const MatchFinder::MatchResult &Result) {
   const auto *Call = Result.Nodes.getNodeAs<CallExpr>("expr");

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

@@ -59,9 +59,7 @@ AST_MATCHER(FunctionDecl, isPlacementOverload) {
   return true;
 }
 
-} // namespace
-
-static OverloadedOperatorKind getCorrespondingOverload(const FunctionDecl *FD) {
+OverloadedOperatorKind getCorrespondingOverload(const FunctionDecl *FD) {
   switch (FD->getOverloadedOperator()) {
   default:
     break;
@@ -77,7 +75,7 @@ static OverloadedOperatorKind getCorrespondingOverload(const FunctionDecl *FD) {
   llvm_unreachable("Not an overloaded allocation operator");
 }
 
-static const char *getOperatorName(OverloadedOperatorKind K) {
+const char *getOperatorName(OverloadedOperatorKind K) {
   switch (K) {
   default:
     break;
@@ -93,14 +91,13 @@ static const char *getOperatorName(OverloadedOperatorKind K) {
   llvm_unreachable("Not an overloaded allocation operator");
 }
 
-static bool areCorrespondingOverloads(const FunctionDecl *LHS,
-                                      const FunctionDecl *RHS) {
+bool areCorrespondingOverloads(const FunctionDecl *LHS,
+                               const FunctionDecl *RHS) {
   return RHS->getOverloadedOperator() == getCorrespondingOverload(LHS);
 }
 
-static bool
-hasCorrespondingOverloadInBaseClass(const CXXMethodDecl *MD,
-                                    const CXXRecordDecl *RD = nullptr) {
+bool hasCorrespondingOverloadInBaseClass(const CXXMethodDecl *MD,
+                                         const CXXRecordDecl *RD = nullptr) {
   if (RD) {
     // Check the methods in the given class and accessible to derived classes.
     for (const auto *BMD : RD->methods())
@@ -127,6 +124,8 @@ hasCorrespondingOverloadInBaseClass(const CXXMethodDecl *MD,
   return false;
 }
 
+} // anonymous namespace
+
 void NewDeleteOverloadsCheck::registerMatchers(MatchFinder *Finder) {
   // Match all operator new and operator delete overloads (including the array
   // forms). Do not match implicit operators, placement operators, or

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

@@ -395,12 +395,16 @@ void MacroToEnumCallbacks::Endif(SourceLocation Loc, SourceLocation IfLoc) {
   --CurrentFile->ConditionScopes;
 }
 
+namespace {
+
 template <size_t N>
-static bool textEquals(const char (&Needle)[N], const char *HayStack) {
+bool textEquals(const char (&Needle)[N], const char *HayStack) {
   return StringRef{HayStack, N - 1} == Needle;
 }
 
-template <size_t N> static size_t len(const char (&)[N]) { return N - 1; }
+template <size_t N> size_t len(const char (&)[N]) { return N - 1; }
+
+} // namespace
 
 void MacroToEnumCallbacks::PragmaDirective(SourceLocation Loc,
                                            PragmaIntroducerKind Introducer) {

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

@@ -16,13 +16,14 @@ using namespace clang::ast_matchers;
 
 namespace clang::tidy::modernize {
 
-static constexpr char ConstructorCall[] = "constructorCall";
-static constexpr char ResetCall[] = "resetCall";
-static constexpr char NewExpression[] = "newExpression";
+namespace {
 
-static std::string getNewExprName(const CXXNewExpr *NewExpr,
-                                  const SourceManager &SM,
-                                  const LangOptions &Lang) {
+constexpr char ConstructorCall[] = "constructorCall";
+constexpr char ResetCall[] = "resetCall";
+constexpr char NewExpression[] = "newExpression";
+
+std::string getNewExprName(const CXXNewExpr *NewExpr, const SourceManager &SM,
+                           const LangOptions &Lang) {
   StringRef WrittenName = Lexer::getSourceText(
       CharSourceRange::getTokenRange(
           NewExpr->getAllocatedTypeSourceInfo()->getTypeLoc().getSourceRange()),
@@ -33,6 +34,8 @@ static std::string getNewExprName(const CXXNewExpr *NewExpr,
   return WrittenName.str();
 }
 
+} // namespace
+
 const char MakeSmartPtrCheck::PointerType[] = "pointerType";
 
 MakeSmartPtrCheck::MakeSmartPtrCheck(StringRef Name, ClangTidyContext *Context,

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

@@ -19,7 +19,9 @@ using namespace clang::ast_matchers;
 
 namespace clang::tidy::modernize {
 
-static bool containsEscapes(StringRef HayStack, StringRef Escapes) {
+namespace {
+
+bool containsEscapes(StringRef HayStack, StringRef Escapes) {
   size_t BackSlash = HayStack.find('\\');
   if (BackSlash == StringRef::npos)
     return false;
@@ -33,16 +35,16 @@ static bool containsEscapes(StringRef HayStack, StringRef Escapes) {
   return true;
 }
 
-static bool isRawStringLiteral(StringRef Text) {
+bool isRawStringLiteral(StringRef Text) {
   // Already a raw string literal if R comes before ".
   const size_t QuotePos = Text.find('"');
   assert(QuotePos != StringRef::npos);
   return (QuotePos > 0) && (Text[QuotePos - 1] == 'R');
 }
 
-static bool containsEscapedCharacters(const MatchFinder::MatchResult &Result,
-                                      const StringLiteral *Literal,
-                                      const CharsBitSet &DisallowedChars) {
+bool containsEscapedCharacters(const MatchFinder::MatchResult &Result,
+                               const StringLiteral *Literal,
+                               const CharsBitSet &DisallowedChars) {
   // FIXME: Handle L"", u8"", u"" and U"" literals.
   if (!Literal->isOrdinary())
     return false;
@@ -62,12 +64,14 @@ static bool containsEscapedCharacters(const MatchFinder::MatchResult &Result,
   return containsEscapes(Text, R"('\"?x01)");
 }
 
-static bool containsDelimiter(StringRef Bytes, const std::string &Delimiter) {
+bool containsDelimiter(StringRef Bytes, const std::string &Delimiter) {
   return Bytes.find(Delimiter.empty()
                         ? std::string(R"lit()")lit")
                         : (")" + Delimiter + R"(")")) != StringRef::npos;
 }
 
+} // namespace
+
 RawStringLiteralCheck::RawStringLiteralCheck(StringRef Name,
                                              ClangTidyContext *Context)
     : ClangTidyCheck(Name, Context),

clang-tools-extra/clang-tidy/objc/NSInvocationArgumentLifetimeCheck.cpp

@@ -29,13 +29,12 @@
 using namespace clang::ast_matchers;
 
 namespace clang::tidy::objc {
+namespace {
 
 static constexpr StringRef WeakText = "__weak";
 static constexpr StringRef StrongText = "__strong";
 static constexpr StringRef UnsafeUnretainedText = "__unsafe_unretained";
 
-namespace {
-
 /// Matches ObjCIvarRefExpr, DeclRefExpr, or MemberExpr that reference
 /// Objective-C object (or block) variables or fields whose object lifetimes
 /// are not __unsafe_unretained.
@@ -50,8 +49,6 @@ AST_POLYMORPHIC_MATCHER(isObjCManagedLifetime,
          QT.getQualifiers().getObjCLifetime() > Qualifiers::OCL_ExplicitNone;
 }
 
-} // namespace
-
 static std::optional<FixItHint>
 fixItHintReplacementForOwnershipString(StringRef Text, CharSourceRange Range,
                                        StringRef Ownership) {
@@ -96,6 +93,8 @@ fixItHintForVarDecl(const VarDecl *VD, const SourceManager &SM,
   return FixItHint::CreateInsertion(Range.getBegin(), "__unsafe_unretained ");
 }
 
+} // namespace
+
 void NSInvocationArgumentLifetimeCheck::registerMatchers(MatchFinder *Finder) {
   Finder->addMatcher(
       traverse(

clang-tools-extra/clang-tidy/objc/PropertyDeclarationCheck.cpp

@@ -27,14 +27,11 @@ enum NamingStyle {
   CategoryProperty = 2,
 };
 
-} // namespace
-
 /// For now we will only fix 'CamelCase' or 'abc_CamelCase' property to
 /// 'camelCase' or 'abc_camelCase'. For other cases the users need to
 /// come up with a proper name by their own.
 /// FIXME: provide fix for snake_case to snakeCase
-static FixItHint generateFixItHint(const ObjCPropertyDecl *Decl,
-                                   NamingStyle Style) {
+FixItHint generateFixItHint(const ObjCPropertyDecl *Decl, NamingStyle Style) {
   auto Name = Decl->getName();
   auto NewName = Decl->getName().str();
   size_t Index = 0;
@@ -53,7 +50,7 @@ static FixItHint generateFixItHint(const ObjCPropertyDecl *Decl,
   return {};
 }
 
-static std::string validPropertyNameRegex(bool UsedInMatcher) {
+std::string validPropertyNameRegex(bool UsedInMatcher) {
   // Allow any of these names:
   // foo
   // fooBar
@@ -75,13 +72,13 @@ static std::string validPropertyNameRegex(bool UsedInMatcher) {
   return StartMatcher + "([a-z]|[A-Z][A-Z0-9])[a-z0-9A-Z]*$";
 }
 
-static bool hasCategoryPropertyPrefix(llvm::StringRef PropertyName) {
+bool hasCategoryPropertyPrefix(llvm::StringRef PropertyName) {
   auto RegexExp =
       llvm::Regex("^[a-zA-Z][a-zA-Z0-9]*_[a-zA-Z0-9][a-zA-Z0-9_]+$");
   return RegexExp.match(PropertyName);
 }
 
-static bool prefixedPropertyNameValid(llvm::StringRef PropertyName) {
+bool prefixedPropertyNameValid(llvm::StringRef PropertyName) {
   size_t Start = PropertyName.find_first_of('_');
   assert(Start != llvm::StringRef::npos && Start + 1 < PropertyName.size());
   auto Prefix = PropertyName.substr(0, Start);
@@ -91,6 +88,7 @@ static bool prefixedPropertyNameValid(llvm::StringRef PropertyName) {
   auto RegexExp = llvm::Regex(llvm::StringRef(validPropertyNameRegex(false)));
   return RegexExp.match(PropertyName.substr(Start + 1));
 }
+} // namespace
 
 void PropertyDeclarationCheck::registerMatchers(MatchFinder *Finder) {
   Finder->addMatcher(objcPropertyDecl(

clang-tools-extra/clang-tidy/performance/UnnecessaryCopyInitialization.cpp

@@ -17,6 +17,7 @@
 #include <optional>
 
 namespace clang::tidy::performance {
+namespace {
 
 using namespace ::clang::ast_matchers;
 using llvm::StringRef;
@@ -29,8 +30,8 @@ static constexpr StringRef MethodDeclId = "methodDecl";
 static constexpr StringRef FunctionDeclId = "functionDecl";
 static constexpr StringRef OldVarDeclId = "oldVarDecl";
 
-static void recordFixes(const VarDecl &Var, ASTContext &Context,
-                        DiagnosticBuilder &Diagnostic) {
+void recordFixes(const VarDecl &Var, ASTContext &Context,
+                 DiagnosticBuilder &Diagnostic) {
   Diagnostic << utils::fixit::changeVarDeclToReference(Var, Context);
   if (!Var.getType().isLocalConstQualified()) {
     if (std::optional<FixItHint> Fix = utils::fixit::addQualifierToVarDecl(
@@ -39,8 +40,8 @@ static void recordFixes(const VarDecl &Var, ASTContext &Context,
   }
 }
 
-static std::optional<SourceLocation> firstLocAfterNewLine(SourceLocation Loc,
-                                                          SourceManager &SM) {
+std::optional<SourceLocation> firstLocAfterNewLine(SourceLocation Loc,
+                                                   SourceManager &SM) {
   bool Invalid = false;
   const char *TextAfter = SM.getCharacterData(Loc, &Invalid);
   if (Invalid) {
@@ -50,8 +51,8 @@ static std::optional<SourceLocation> firstLocAfterNewLine(SourceLocation Loc,
   return Loc.getLocWithOffset(TextAfter[Offset] == '\0' ? Offset : Offset + 1);
 }
 
-static void recordRemoval(const DeclStmt &Stmt, ASTContext &Context,
-                          DiagnosticBuilder &Diagnostic) {
+void recordRemoval(const DeclStmt &Stmt, ASTContext &Context,
+                   DiagnosticBuilder &Diagnostic) {
   auto &SM = Context.getSourceManager();
   // Attempt to remove trailing comments as well.
   auto Tok = utils::lexer::findNextTokenSkippingComments(Stmt.getEndLoc(), SM,
@@ -73,8 +74,6 @@ static void recordRemoval(const DeclStmt &Stmt, ASTContext &Context,
   }
 }
 
-namespace {
-
 AST_MATCHER_FUNCTION_P(StatementMatcher,
                        isRefReturningMethodCallWithConstOverloads,
                        std::vector<StringRef>, ExcludedContainerTypes) {
@@ -131,8 +130,6 @@ AST_MATCHER_FUNCTION_P(StatementMatcher, initializerReturnsReferenceToConst,
                                            hasUnaryOperand(OldVarDeclRef)))));
 }
 
-} // namespace
-
 // This checks that the variable itself is only used as const, and also makes
 // sure that it does not reference another variable that could be modified in
 // the BlockStmt. It does this by checking the following:
@@ -183,13 +180,13 @@ static bool isInitializingVariableImmutable(
   return false;
 }
 
-static bool isVariableUnused(const VarDecl &Var, const Stmt &BlockStmt,
-                             ASTContext &Context) {
+bool isVariableUnused(const VarDecl &Var, const Stmt &BlockStmt,
+                      ASTContext &Context) {
   return allDeclRefExprs(Var, BlockStmt, Context).empty();
 }
 
-static const SubstTemplateTypeParmType *
-getSubstitutedType(const QualType &Type, ASTContext &Context) {
+const SubstTemplateTypeParmType *getSubstitutedType(const QualType &Type,
+                                                    ASTContext &Context) {
   auto Matches = match(
       qualType(anyOf(substTemplateTypeParmType().bind("subst"),
                      hasDescendant(substTemplateTypeParmType().bind("subst")))),
@@ -197,9 +194,9 @@ getSubstitutedType(const QualType &Type, ASTContext &Context) {
   return selectFirst<SubstTemplateTypeParmType>("subst", Matches);
 }
 
-static bool differentReplacedTemplateParams(const QualType &VarType,
-                                            const QualType &InitializerType,
-                                            ASTContext &Context) {
+bool differentReplacedTemplateParams(const QualType &VarType,
+                                     const QualType &InitializerType,
+                                     ASTContext &Context) {
   if (const SubstTemplateTypeParmType *VarTmplType =
           getSubstitutedType(VarType, Context)) {
     if (const SubstTemplateTypeParmType *InitializerTmplType =
@@ -215,8 +212,8 @@ static bool differentReplacedTemplateParams(const QualType &VarType,
   return false;
 }
 
-static QualType constructorArgumentType(const VarDecl *OldVar,
-                                        const BoundNodes &Nodes) {
+QualType constructorArgumentType(const VarDecl *OldVar,
+                                 const BoundNodes &Nodes) {
   if (OldVar) {
     return OldVar->getType();
   }
@@ -227,6 +224,8 @@ static QualType constructorArgumentType(const VarDecl *OldVar,
   return MethodDecl->getReturnType();
 }
 
+} // namespace
+
 UnnecessaryCopyInitialization::UnnecessaryCopyInitialization(
     StringRef Name, ClangTidyContext *Context)
     : ClangTidyCheck(Name, Context),

clang-tools-extra/clang-tidy/performance/UnnecessaryValueParamCheck.cpp

@@ -21,14 +21,16 @@ using namespace clang::ast_matchers;
 
 namespace clang::tidy::performance {
 
-static std::string paramNameOrIndex(StringRef Name, size_t Index) {
+namespace {
+
+std::string paramNameOrIndex(StringRef Name, size_t Index) {
   return (Name.empty() ? llvm::Twine('#') + llvm::Twine(Index + 1)
                        : llvm::Twine('\'') + Name + llvm::Twine('\''))
       .str();
 }
 
-static bool hasLoopStmtAncestor(const DeclRefExpr &DeclRef, const Decl &Decl,
-                                ASTContext &Context) {
+bool hasLoopStmtAncestor(const DeclRefExpr &DeclRef, const Decl &Decl,
+                         ASTContext &Context) {
   auto Matches = match(
       traverse(TK_AsIs,
                decl(forEachDescendant(declRefExpr(
@@ -39,6 +41,8 @@ static bool hasLoopStmtAncestor(const DeclRefExpr &DeclRef, const Decl &Decl,
   return Matches.empty();
 }
 
+} // namespace
+
 UnnecessaryValueParamCheck::UnnecessaryValueParamCheck(
     StringRef Name, ClangTidyContext *Context)
     : ClangTidyCheck(Name, Context),

clang-tools-extra/clang-tidy/readability/EnumInitialValueCheck.cpp

@@ -122,15 +122,15 @@ AST_MATCHER(EnumDecl, hasSequentialInitialValues) {
   return !AllEnumeratorsArePowersOfTwo;
 }
 
-} // namespace
-
-static std::string getName(const EnumDecl *Decl) {
+std::string getName(const EnumDecl *Decl) {
   if (!Decl->getDeclName())
     return "<unnamed>";
 
   return Decl->getQualifiedNameAsString();
 }
 
+} // namespace
+
 EnumInitialValueCheck::EnumInitialValueCheck(StringRef Name,
                                              ClangTidyContext *Context)
     : ClangTidyCheck(Name, Context),

clang-tools-extra/clang-tidy/readability/FunctionCognitiveComplexityCheck.cpp

@@ -144,8 +144,6 @@ struct CognitiveComplexity final {
   void account(SourceLocation Loc, unsigned short Nesting, Criteria C);
 };
 
-} // namespace
-
 // All the possible messages that can be output. The choice of the message
 // to use is based of the combination of the CognitiveComplexity::Criteria.
 // It would be nice to have it in CognitiveComplexity struct, but then it is
@@ -165,27 +163,23 @@ static const std::array<const StringRef, 4> Msgs = {{
 }};
 
 // Criteria is a bitset, thus a few helpers are needed.
-static CognitiveComplexity::Criteria
-operator|(CognitiveComplexity::Criteria LHS,
-          CognitiveComplexity::Criteria RHS) {
+CognitiveComplexity::Criteria operator|(CognitiveComplexity::Criteria LHS,
+                                        CognitiveComplexity::Criteria RHS) {
   return static_cast<CognitiveComplexity::Criteria>(llvm::to_underlying(LHS) |
                                                     llvm::to_underlying(RHS));
 }
-static CognitiveComplexity::Criteria
-operator&(CognitiveComplexity::Criteria LHS,
-          CognitiveComplexity::Criteria RHS) {
+CognitiveComplexity::Criteria operator&(CognitiveComplexity::Criteria LHS,
+                                        CognitiveComplexity::Criteria RHS) {
   return static_cast<CognitiveComplexity::Criteria>(llvm::to_underlying(LHS) &
                                                     llvm::to_underlying(RHS));
 }
-static CognitiveComplexity::Criteria &
-operator|=(CognitiveComplexity::Criteria &LHS,
-           CognitiveComplexity::Criteria RHS) {
+CognitiveComplexity::Criteria &operator|=(CognitiveComplexity::Criteria &LHS,
+                                          CognitiveComplexity::Criteria RHS) {
   LHS = operator|(LHS, RHS);
   return LHS;
 }
-static CognitiveComplexity::Criteria &
-operator&=(CognitiveComplexity::Criteria &LHS,
-           CognitiveComplexity::Criteria RHS) {
+CognitiveComplexity::Criteria &operator&=(CognitiveComplexity::Criteria &LHS,
+                                          CognitiveComplexity::Criteria RHS) {
   LHS = operator&(LHS, RHS);
   return LHS;
 }
@@ -205,8 +199,6 @@ void CognitiveComplexity::account(SourceLocation Loc, unsigned short Nesting,
   Total += Increase;
 }
 
-namespace {
-
 class FunctionASTVisitor final
     : public RecursiveASTVisitor<FunctionASTVisitor> {
   using Base = RecursiveASTVisitor<FunctionASTVisitor>;

clang-tools-extra/clang-tidy/readability/ImplicitBoolConversionCheck.cpp

@@ -41,11 +41,9 @@ AST_MATCHER(Stmt, isNULLMacroExpansion) {
   return isNULLMacroExpansion(&Node, Finder->getASTContext());
 }
 
-} // namespace
-
-static StringRef getZeroLiteralToCompareWithForType(CastKind CastExprKind,
-                                                    QualType Type,
-                                                    ASTContext &Context) {
+StringRef getZeroLiteralToCompareWithForType(CastKind CastExprKind,
+                                             QualType Type,
+                                             ASTContext &Context) {
   switch (CastExprKind) {
   case CK_IntegralToBoolean:
     return Type->isUnsignedIntegerType() ? "0u" : "0";
@@ -64,15 +62,15 @@ static StringRef getZeroLiteralToCompareWithForType(CastKind CastExprKind,
   }
 }
 
-static bool isUnaryLogicalNotOperator(const Stmt *Statement) {
+bool isUnaryLogicalNotOperator(const Stmt *Statement) {
   const auto *UnaryOperatorExpr = dyn_cast<UnaryOperator>(Statement);
   return UnaryOperatorExpr && UnaryOperatorExpr->getOpcode() == UO_LNot;
 }
 
-static void fixGenericExprCastToBool(DiagnosticBuilder &Diag,
-                                     const ImplicitCastExpr *Cast,
-                                     const Stmt *Parent, ASTContext &Context,
-                                     bool UseUpperCaseLiteralSuffix) {
+void fixGenericExprCastToBool(DiagnosticBuilder &Diag,
+                              const ImplicitCastExpr *Cast, const Stmt *Parent,
+                              ASTContext &Context,
+                              bool UseUpperCaseLiteralSuffix) {
   // In case of expressions like (! integer), we should remove the redundant not
   // operator and use inverted comparison (integer == 0).
   bool InvertComparison =
@@ -135,8 +133,8 @@ static void fixGenericExprCastToBool(DiagnosticBuilder &Diag,
   Diag << FixItHint::CreateInsertion(EndLoc, EndLocInsertion);
 }
 
-static StringRef getEquivalentBoolLiteralForExpr(const Expr *Expression,
-                                                 ASTContext &Context) {
+StringRef getEquivalentBoolLiteralForExpr(const Expr *Expression,
+                                          ASTContext &Context) {
   if (isNULLMacroExpansion(Expression, Context)) {
     return "false";
   }
@@ -163,7 +161,7 @@ static StringRef getEquivalentBoolLiteralForExpr(const Expr *Expression,
   return {};
 }
 
-static bool needsSpacePrefix(SourceLocation Loc, ASTContext &Context) {
+bool needsSpacePrefix(SourceLocation Loc, ASTContext &Context) {
   SourceRange PrefixRange(Loc.getLocWithOffset(-1), Loc);
   StringRef SpaceBeforeStmtStr = Lexer::getSourceText(
       CharSourceRange::getCharRange(PrefixRange), Context.getSourceManager(),
@@ -175,10 +173,9 @@ static bool needsSpacePrefix(SourceLocation Loc, ASTContext &Context) {
   return !AllowedCharacters.contains(SpaceBeforeStmtStr.back());
 }
 
-static void fixGenericExprCastFromBool(DiagnosticBuilder &Diag,
-                                       const ImplicitCastExpr *Cast,
-                                       ASTContext &Context,
-                                       StringRef OtherType) {
+void fixGenericExprCastFromBool(DiagnosticBuilder &Diag,
+                                const ImplicitCastExpr *Cast,
+                                ASTContext &Context, StringRef OtherType) {
   if (!Context.getLangOpts().CPlusPlus) {
     Diag << FixItHint::CreateInsertion(Cast->getBeginLoc(),
                                        (Twine("(") + OtherType + ")").str());
@@ -203,9 +200,8 @@ static void fixGenericExprCastFromBool(DiagnosticBuilder &Diag,
   }
 }
 
-static StringRef
-getEquivalentForBoolLiteral(const CXXBoolLiteralExpr *BoolLiteral,
-                            QualType DestType, ASTContext &Context) {
+StringRef getEquivalentForBoolLiteral(const CXXBoolLiteralExpr *BoolLiteral,
+                                      QualType DestType, ASTContext &Context) {
   // Prior to C++11, false literal could be implicitly converted to pointer.
   if (!Context.getLangOpts().CPlusPlus11 &&
       (DestType->isPointerType() || DestType->isMemberPointerType()) &&
@@ -226,8 +222,8 @@ getEquivalentForBoolLiteral(const CXXBoolLiteralExpr *BoolLiteral,
   return BoolLiteral->getValue() ? "1" : "0";
 }
 
-static bool isCastAllowedInCondition(const ImplicitCastExpr *Cast,
-                                     ASTContext &Context) {
+bool isCastAllowedInCondition(const ImplicitCastExpr *Cast,
+                              ASTContext &Context) {
   std::queue<const Stmt *> Q;
   Q.push(Cast);
 
@@ -255,6 +251,8 @@ static bool isCastAllowedInCondition(const ImplicitCastExpr *Cast,
   return false;
 }
 
+} // anonymous namespace
+
 ImplicitBoolConversionCheck::ImplicitBoolConversionCheck(
     StringRef Name, ClangTidyContext *Context)
     : ClangTidyCheck(Name, Context),

clang-tools-extra/clang-tidy/readability/QualifiedAutoCheck.cpp

@@ -28,11 +28,8 @@ AST_MATCHER_P(QualType, hasUnqualifiedType,
 
 enum class Qualifier { Const, Volatile, Restrict };
 
-} // namespace
-
-static std::optional<Token>
-findQualToken(const VarDecl *Decl, Qualifier Qual,
-              const MatchFinder::MatchResult &Result) {
+std::optional<Token> findQualToken(const VarDecl *Decl, Qualifier Qual,
+                                   const MatchFinder::MatchResult &Result) {
   // Since either of the locs can be in a macro, use `makeFileCharRange` to be
   // sure that we have a consistent `CharSourceRange`, located entirely in the
   // source file.
@@ -61,7 +58,7 @@ findQualToken(const VarDecl *Decl, Qualifier Qual,
                                           *Result.SourceManager);
 }
 
-static std::optional<SourceRange>
+std::optional<SourceRange>
 getTypeSpecifierLocation(const VarDecl *Var,
                          const MatchFinder::MatchResult &Result) {
   SourceRange TypeSpecifier(
@@ -76,8 +73,8 @@ getTypeSpecifierLocation(const VarDecl *Var,
   return TypeSpecifier;
 }
 
-static std::optional<SourceRange>
-mergeReplacementRange(SourceRange &TypeSpecifier, const Token &ConstToken) {
+std::optional<SourceRange> mergeReplacementRange(SourceRange &TypeSpecifier,
+                                                 const Token &ConstToken) {
   if (TypeSpecifier.getBegin().getLocWithOffset(-1) == ConstToken.getEndLoc()) {
     TypeSpecifier.setBegin(ConstToken.getLocation());
     return std::nullopt;
@@ -89,19 +86,21 @@ mergeReplacementRange(SourceRange &TypeSpecifier, const Token &ConstToken) {
   return SourceRange(ConstToken.getLocation(), ConstToken.getEndLoc());
 }
 
-static bool isPointerConst(QualType QType) {
+bool isPointerConst(QualType QType) {
   QualType Pointee = QType->getPointeeType();
   assert(!Pointee.isNull() && "can't have a null Pointee");
   return Pointee.isConstQualified();
 }
 
-static bool isAutoPointerConst(QualType QType) {
+bool isAutoPointerConst(QualType QType) {
   QualType Pointee =
       cast<AutoType>(QType->getPointeeType().getTypePtr())->desugar();
   assert(!Pointee.isNull() && "can't have a null Pointee");
   return Pointee.isConstQualified();
 }
 
+} // namespace
+
 QualifiedAutoCheck::QualifiedAutoCheck(StringRef Name,
                                        ClangTidyContext *Context)
     : ClangTidyCheck(Name, Context),

clang-tools-extra/clang-tidy/readability/RedundantControlFlowCheck.cpp

@@ -14,18 +14,19 @@ using namespace clang::ast_matchers;
 
 namespace clang::tidy::readability {
 
-static const char *const RedundantReturnDiag =
-    "redundant return statement at the end "
-    "of a function with a void return type";
-static const char *const RedundantContinueDiag =
-    "redundant continue statement at the "
-    "end of loop statement";
+namespace {
 
-static bool isLocationInMacroExpansion(const SourceManager &SM,
-                                       SourceLocation Loc) {
+const char *const RedundantReturnDiag = "redundant return statement at the end "
+                                        "of a function with a void return type";
+const char *const RedundantContinueDiag = "redundant continue statement at the "
+                                          "end of loop statement";
+
+bool isLocationInMacroExpansion(const SourceManager &SM, SourceLocation Loc) {
   return SM.isMacroBodyExpansion(Loc) || SM.isMacroArgExpansion(Loc);
 }
 
+} // namespace
+
 void RedundantControlFlowCheck::registerMatchers(MatchFinder *Finder) {
   Finder->addMatcher(
       functionDecl(isDefinition(), returns(voidType()),

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

@@ -13,14 +13,16 @@
 
 namespace clang::tidy::utils::type_traits {
 
-static bool classHasTrivialCopyAndDestroy(QualType Type) {
+namespace {
+
+bool classHasTrivialCopyAndDestroy(QualType Type) {
   auto *Record = Type->getAsCXXRecordDecl();
   return Record && Record->hasDefinition() &&
          !Record->hasNonTrivialCopyConstructor() &&
          !Record->hasNonTrivialDestructor();
 }
 
-static bool hasDeletedCopyConstructor(QualType Type) {
+bool hasDeletedCopyConstructor(QualType Type) {
   auto *Record = Type->getAsCXXRecordDecl();
   if (!Record || !Record->hasDefinition())
     return false;
@@ -31,6 +33,8 @@ static bool hasDeletedCopyConstructor(QualType Type) {
   return false;
 }
 
+} // namespace
+
 std::optional<bool> isExpensiveToCopy(QualType Type,
                                       const ASTContext &Context) {
   if (Type->isDependentType() || Type->isIncompleteType())

clang/docs/ReleaseNotes.rst

@@ -309,13 +309,6 @@ NVPTX Support
 
 X86 Support
 ^^^^^^^^^^^
-- More SSE, AVX and AVX512 intrinsics, including initializers and general
-  arithmetic can now be used in C++ constant expressions.
-- Some SSE, AVX and AVX512 intrinsics have been converted to wrap
-  generic __builtin intrinsics.
-- NOTE: Please avoid use of the __builtin_ia32_* intrinsics - these are not 
-  guaranteed to exist in future releases, or match behaviour with previous
-  releases of clang or other compilers.
 
 Arm and AArch64 Support
 ^^^^^^^^^^^^^^^^^^^^^^^

clang/include/clang/Basic/BuiltinsX86.td

@@ -627,23 +627,11 @@ let Features = "avx2", Attributes = [NoThrow, Const, RequiredVectorWidth<256>] i
 let Features = "avx2", Attributes = [NoThrow, Const, Constexpr, RequiredVectorWidth<256>] in {
   def pmuldq256 : X86Builtin<"_Vector<4, long long int>(_Vector<8, int>, _Vector<8, int>)">;
   def pmuludq256 : X86Builtin<"_Vector<4, long long int>(_Vector<8, int>, _Vector<8, int>)">;
-
-  def pmulhuw256 : X86Builtin<"_Vector<16, unsigned short>(_Vector<16, unsigned short>, _Vector<16, unsigned short>)">;
-  def pmulhw256 : X86Builtin<"_Vector<16, short>(_Vector<16, short>, _Vector<16, short>)">;
-
-  def psllv8si : X86Builtin<"_Vector<8, int>(_Vector<8, int>, _Vector<8, int>)">;
-  def psrav8si : X86Builtin<"_Vector<8, int>(_Vector<8, int>, _Vector<8, int>)">;
-  def psrlv8si : X86Builtin<"_Vector<8, int>(_Vector<8, int>, _Vector<8, int>)">;
-  def psllv4di : X86Builtin<"_Vector<4, long long int>(_Vector<4, long long int>, _Vector<4, long long int>)">;
-  def psrlv4di : X86Builtin<"_Vector<4, long long int>(_Vector<4, long long int>, _Vector<4, long long int>)">;
 }
 
-let Features = "avx2", Attributes = [NoThrow, Const, Constexpr, RequiredVectorWidth<128>] in {
-  def psllv4si : X86Builtin<"_Vector<4, int>(_Vector<4, int>, _Vector<4, int>)">;
-  def psrav4si : X86Builtin<"_Vector<4, int>(_Vector<4, int>, _Vector<4, int>)">;
-  def psrlv4si : X86Builtin<"_Vector<4, int>(_Vector<4, int>, _Vector<4, int>)">;
-  def psllv2di : X86Builtin<"_Vector<2, long long int>(_Vector<2, long long int>, _Vector<2, long long int>)">;
-  def psrlv2di : X86Builtin<"_Vector<2, long long int>(_Vector<2, long long int>, _Vector<2, long long int>)">;
+let Features = "avx2", Attributes = [NoThrow, Const, Constexpr, RequiredVectorWidth<256>] in {
+  def pmulhuw256 : X86Builtin<"_Vector<16, unsigned short>(_Vector<16, unsigned short>, _Vector<16, unsigned short>)">;
+  def pmulhw256 : X86Builtin<"_Vector<16, short>(_Vector<16, short>, _Vector<16, short>)">;
 }
 
 let Features = "avx2", Attributes = [NoThrow, RequiredVectorWidth<256>] in {
@@ -666,6 +654,46 @@ let Features = "avx2", Attributes = [NoThrow, RequiredVectorWidth<128>] in {
   def maskstoreq : X86Builtin<"void(_Vector<2, long long int *>, _Vector<2, long long int>, _Vector<2, long long int>)">;
 }
 
+let Features = "avx2", Attributes = [NoThrow, Const, RequiredVectorWidth<256>] in {
+  def psllv8si : X86Builtin<"_Vector<8, int>(_Vector<8, int>, _Vector<8, int>)">;
+}
+
+let Features = "avx2", Attributes = [NoThrow, Const, RequiredVectorWidth<128>] in {
+  def psllv4si : X86Builtin<"_Vector<4, int>(_Vector<4, int>, _Vector<4, int>)">;
+}
+
+let Features = "avx2", Attributes = [NoThrow, Const, RequiredVectorWidth<256>] in {
+  def psllv4di : X86Builtin<"_Vector<4, long long int>(_Vector<4, long long int>, _Vector<4, long long int>)">;
+}
+
+let Features = "avx2", Attributes = [NoThrow, Const, RequiredVectorWidth<128>] in {
+  def psllv2di : X86Builtin<"_Vector<2, long long int>(_Vector<2, long long int>, _Vector<2, long long int>)">;
+}
+
+let Features = "avx2", Attributes = [NoThrow, Const, RequiredVectorWidth<256>] in {
+  def psrav8si : X86Builtin<"_Vector<8, int>(_Vector<8, int>, _Vector<8, int>)">;
+}
+
+let Features = "avx2", Attributes = [NoThrow, Const, RequiredVectorWidth<128>] in {
+  def psrav4si : X86Builtin<"_Vector<4, int>(_Vector<4, int>, _Vector<4, int>)">;
+}
+
+let Features = "avx2", Attributes = [NoThrow, Const, RequiredVectorWidth<256>] in {
+  def psrlv8si : X86Builtin<"_Vector<8, int>(_Vector<8, int>, _Vector<8, int>)">;
+}
+
+let Features = "avx2", Attributes = [NoThrow, Const, RequiredVectorWidth<128>] in {
+  def psrlv4si : X86Builtin<"_Vector<4, int>(_Vector<4, int>, _Vector<4, int>)">;
+}
+
+let Features = "avx2", Attributes = [NoThrow, Const, RequiredVectorWidth<256>] in {
+  def psrlv4di : X86Builtin<"_Vector<4, long long int>(_Vector<4, long long int>, _Vector<4, long long int>)">;
+}
+
+let Features = "avx2", Attributes = [NoThrow, Const, RequiredVectorWidth<128>] in {
+  def psrlv2di : X86Builtin<"_Vector<2, long long int>(_Vector<2, long long int>, _Vector<2, long long int>)">;
+}
+
 let Features = "avx2", Attributes = [NoThrow, RequiredVectorWidth<128>] in {
   def gatherd_pd : X86Builtin<"_Vector<2, double>(_Vector<2, double>, double const *, _Vector<4, int>, _Vector<2, double>, _Constant char)">;
 }

clang/include/clang/Basic/TargetInfo.h

@@ -1259,6 +1259,10 @@ public:
                            ArrayRef<ConstraintInfo> OutputConstraints,
                            unsigned &Index) const;
 
+  std::string
+  simplifyConstraint(StringRef Constraint,
+                     SmallVectorImpl<ConstraintInfo> *OutCons = nullptr) const;
+
   // Constraint parm will be left pointing at the last character of
   // the constraint.  In practice, it won't be changed unless the
   // constraint is longer than one character.

clang/lib/AST/ExprConstant.cpp

@@ -11669,24 +11669,13 @@ bool VectorExprEvaluator::VisitCallExpr(const CallExpr *E) {
   case clang::X86::BI__builtin_ia32_pmulhuw512:
   case clang::X86::BI__builtin_ia32_pmulhw128:
   case clang::X86::BI__builtin_ia32_pmulhw256:
-  case clang::X86::BI__builtin_ia32_pmulhw512:
-  case clang::X86::BI__builtin_ia32_psllv2di:
-  case clang::X86::BI__builtin_ia32_psllv4di:
-  case clang::X86::BI__builtin_ia32_psllv4si:
-  case clang::X86::BI__builtin_ia32_psllv8si:
-  case clang::X86::BI__builtin_ia32_psrav4si:
-  case clang::X86::BI__builtin_ia32_psrav8si:
-  case clang::X86::BI__builtin_ia32_psrlv2di:
-  case clang::X86::BI__builtin_ia32_psrlv4di:
-  case clang::X86::BI__builtin_ia32_psrlv4si:
-  case clang::X86::BI__builtin_ia32_psrlv8si:{
+  case clang::X86::BI__builtin_ia32_pmulhw512: {
     APValue SourceLHS, SourceRHS;
     if (!EvaluateAsRValue(Info, E->getArg(0), SourceLHS) ||
         !EvaluateAsRValue(Info, E->getArg(1), SourceRHS))
       return false;
 
     QualType DestEltTy = E->getType()->castAs<VectorType>()->getElementType();
-    bool DestUnsigned = DestEltTy->isUnsignedIntegerOrEnumerationType();
     unsigned SourceLen = SourceLHS.getVectorLength();
     SmallVector<APValue, 4> ResultElements;
     ResultElements.reserve(SourceLen);
@@ -11698,12 +11687,12 @@ bool VectorExprEvaluator::VisitCallExpr(const CallExpr *E) {
       case Builtin::BI__builtin_elementwise_add_sat:
         ResultElements.push_back(APValue(
             APSInt(LHS.isSigned() ? LHS.sadd_sat(RHS) : LHS.uadd_sat(RHS),
-                   DestUnsigned)));
+                   DestEltTy->isUnsignedIntegerOrEnumerationType())));
         break;
       case Builtin::BI__builtin_elementwise_sub_sat:
         ResultElements.push_back(APValue(
             APSInt(LHS.isSigned() ? LHS.ssub_sat(RHS) : LHS.usub_sat(RHS),
-                   DestUnsigned)));
+                   DestEltTy->isUnsignedIntegerOrEnumerationType())));
         break;
       case clang::X86::BI__builtin_ia32_pmulhuw128:
       case clang::X86::BI__builtin_ia32_pmulhuw256:
@@ -11717,40 +11706,6 @@ bool VectorExprEvaluator::VisitCallExpr(const CallExpr *E) {
         ResultElements.push_back(APValue(APSInt(llvm::APIntOps::mulhs(LHS, RHS),
                                                 /*isUnsigned=*/false)));
         break;
-      case clang::X86::BI__builtin_ia32_psllv2di:
-      case clang::X86::BI__builtin_ia32_psllv4di:
-      case clang::X86::BI__builtin_ia32_psllv4si:
-      case clang::X86::BI__builtin_ia32_psllv8si:
-        if (RHS.uge(RHS.getBitWidth())) {
-          ResultElements.push_back(
-              APValue(APSInt(APInt::getZero(RHS.getBitWidth()), DestUnsigned)));
-          break;
-        }
-        ResultElements.push_back(
-            APValue(APSInt(LHS.shl(RHS.getZExtValue()), DestUnsigned)));
-        break;
-      case clang::X86::BI__builtin_ia32_psrav4si:
-      case clang::X86::BI__builtin_ia32_psrav8si:
-        if (RHS.uge(RHS.getBitWidth())) {
-          ResultElements.push_back(
-              APValue(APSInt(LHS.ashr(RHS.getBitWidth() - 1), DestUnsigned)));
-          break;
-        }
-        ResultElements.push_back(
-            APValue(APSInt(LHS.ashr(RHS.getZExtValue()), DestUnsigned)));
-        break;
-      case clang::X86::BI__builtin_ia32_psrlv2di:
-      case clang::X86::BI__builtin_ia32_psrlv4di:
-      case clang::X86::BI__builtin_ia32_psrlv4si:
-      case clang::X86::BI__builtin_ia32_psrlv8si:
-        if (RHS.uge(RHS.getBitWidth())) {
-          ResultElements.push_back(
-              APValue(APSInt(APInt::getZero(RHS.getBitWidth()), DestUnsigned)));
-          break;
-        }
-        ResultElements.push_back(
-            APValue(APSInt(LHS.lshr(RHS.getZExtValue()), DestUnsigned)));
-        break;
       }
     }
 

clang/lib/Basic/TargetInfo.cpp

@@ -18,6 +18,7 @@
 #include "clang/Basic/LangOptions.h"
 #include "llvm/ADT/APFloat.h"
 #include "llvm/ADT/STLExtras.h"
+#include "llvm/ADT/StringExtras.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/TargetParser/TargetParser.h"
 #include <cstdlib>
@@ -1034,3 +1035,51 @@ void TargetInfo::copyAuxTarget(const TargetInfo *Aux) {
   auto *Src = static_cast<const TransferrableTargetInfo*>(Aux);
   *Target = *Src;
 }
+
+std::string
+TargetInfo::simplifyConstraint(StringRef Constraint,
+                               SmallVectorImpl<ConstraintInfo> *OutCons) const {
+  std::string Result;
+
+  for (const char *I = Constraint.begin(), *E = Constraint.end(); I < E; I++) {
+    switch (*I) {
+    default:
+      Result += convertConstraint(I);
+      break;
+    // Ignore these
+    case '*':
+    case '?':
+    case '!':
+    case '=': // Will see this and the following in mult-alt constraints.
+    case '+':
+      break;
+    case '#': // Ignore the rest of the constraint alternative.
+      while (I + 1 != E && I[1] != ',')
+        I++;
+      break;
+    case '&':
+    case '%':
+      Result += *I;
+      while (I + 1 != E && I[1] == *I)
+        I++;
+      break;
+    case ',':
+      Result += "|";
+      break;
+    case 'g':
+      Result += "imr";
+      break;
+    case '[': {
+      assert(OutCons &&
+             "Must pass output names to constraints with a symbolic name");
+      unsigned Index;
+      bool ResolveResult = resolveSymbolicName(I, *OutCons, Index);
+      assert(ResolveResult && "Could not resolve symbolic name");
+      (void)ResolveResult;
+      Result += llvm::utostr(Index);
+      break;
+    }
+    }
+  }
+  return Result;
+}

clang/lib/Basic/Targets/OSTargets.h

@@ -174,9 +174,6 @@ protected:
     DefineStd(Builder, "unix", Opts);
     if (this->HasFloat128)
       Builder.defineMacro("__FLOAT128__");
-
-    if (Opts.C11)
-      Builder.defineMacro("__STDC_NO_THREADS__");
   }
 
 public:

clang/lib/CodeGen/CGStmt.cpp

@@ -2454,56 +2454,6 @@ void CodeGenFunction::EmitSwitchStmt(const SwitchStmt &S) {
   CaseRangeBlock = SavedCRBlock;
 }
 
-static std::string
-SimplifyConstraint(const char *Constraint, const TargetInfo &Target,
-                 SmallVectorImpl<TargetInfo::ConstraintInfo> *OutCons=nullptr) {
-  std::string Result;
-
-  while (*Constraint) {
-    switch (*Constraint) {
-    default:
-      Result += Target.convertConstraint(Constraint);
-      break;
-    // Ignore these
-    case '*':
-    case '?':
-    case '!':
-    case '=': // Will see this and the following in mult-alt constraints.
-    case '+':
-      break;
-    case '#': // Ignore the rest of the constraint alternative.
-      while (Constraint[1] && Constraint[1] != ',')
-        Constraint++;
-      break;
-    case '&':
-    case '%':
-      Result += *Constraint;
-      while (Constraint[1] && Constraint[1] == *Constraint)
-        Constraint++;
-      break;
-    case ',':
-      Result += "|";
-      break;
-    case 'g':
-      Result += "imr";
-      break;
-    case '[': {
-      assert(OutCons &&
-             "Must pass output names to constraints with a symbolic name");
-      unsigned Index;
-      bool result = Target.resolveSymbolicName(Constraint, *OutCons, Index);
-      assert(result && "Could not resolve symbolic name"); (void)result;
-      Result += llvm::utostr(Index);
-      break;
-    }
-    }
-
-    Constraint++;
-  }
-
-  return Result;
-}
-
 /// AddVariableConstraints - Look at AsmExpr and if it is a variable declared
 /// as using a particular register add that as a constraint that will be used
 /// in this asm stmt.
@@ -2882,8 +2832,8 @@ void CodeGenFunction::EmitAsmStmt(const AsmStmt &S) {
 
     // Simplify the output constraint.
     std::string OutputConstraint(S.getOutputConstraint(i));
-    OutputConstraint = SimplifyConstraint(OutputConstraint.c_str() + 1,
-                                          getTarget(), &OutputConstraintInfos);
+    OutputConstraint = getTarget().simplifyConstraint(
+        OutputConstraint.c_str() + 1, &OutputConstraintInfos);
 
     const Expr *OutExpr = S.getOutputExpr(i);
     OutExpr = OutExpr->IgnoreParenNoopCasts(getContext());
@@ -3045,8 +2995,8 @@ void CodeGenFunction::EmitAsmStmt(const AsmStmt &S) {
 
     // Simplify the input constraint.
     std::string InputConstraint(S.getInputConstraint(i));
-    InputConstraint = SimplifyConstraint(InputConstraint.c_str(), getTarget(),
-                                         &OutputConstraintInfos);
+    InputConstraint = getTarget().simplifyConstraint(InputConstraint.c_str(),
+                                                     &OutputConstraintInfos);
 
     InputConstraint = AddVariableConstraints(
         InputConstraint, *InputExpr->IgnoreParenNoopCasts(getContext()),

clang/lib/Headers/avx2intrin.h

@@ -3721,7 +3721,7 @@ _mm_maskstore_epi64(long long *__X, __m128i __M, __m128i __Y)
 ///    A 256-bit vector of [8 x i32] containing the unsigned shift counts (in
 ///    bits).
 /// \returns A 256-bit vector of [8 x i32] containing the result.
-static __inline__ __m256i __DEFAULT_FN_ATTRS256_CONSTEXPR
+static __inline__ __m256i __DEFAULT_FN_ATTRS256
 _mm256_sllv_epi32(__m256i __X, __m256i __Y)
 {
   return (__m256i)__builtin_ia32_psllv8si((__v8si)__X, (__v8si)__Y);
@@ -3743,7 +3743,7 @@ _mm256_sllv_epi32(__m256i __X, __m256i __Y)
 ///    A 128-bit vector of [4 x i32] containing the unsigned shift counts (in
 ///    bits).
 /// \returns A 128-bit vector of [4 x i32] containing the result.
-static __inline__ __m128i __DEFAULT_FN_ATTRS128_CONSTEXPR
+static __inline__ __m128i __DEFAULT_FN_ATTRS128
 _mm_sllv_epi32(__m128i __X, __m128i __Y)
 {
   return (__m128i)__builtin_ia32_psllv4si((__v4si)__X, (__v4si)__Y);
@@ -3765,7 +3765,7 @@ _mm_sllv_epi32(__m128i __X, __m128i __Y)
 ///    A 256-bit vector of [4 x i64] containing the unsigned shift counts (in
 ///    bits).
 /// \returns A 256-bit vector of [4 x i64] containing the result.
-static __inline__ __m256i __DEFAULT_FN_ATTRS256_CONSTEXPR
+static __inline__ __m256i __DEFAULT_FN_ATTRS256
 _mm256_sllv_epi64(__m256i __X, __m256i __Y)
 {
   return (__m256i)__builtin_ia32_psllv4di((__v4di)__X, (__v4di)__Y);
@@ -3787,7 +3787,7 @@ _mm256_sllv_epi64(__m256i __X, __m256i __Y)
 ///    A 128-bit vector of [2 x i64] containing the unsigned shift counts (in
 ///    bits).
 /// \returns A 128-bit vector of [2 x i64] containing the result.
-static __inline__ __m128i __DEFAULT_FN_ATTRS128_CONSTEXPR
+static __inline__ __m128i __DEFAULT_FN_ATTRS128
 _mm_sllv_epi64(__m128i __X, __m128i __Y)
 {
   return (__m128i)__builtin_ia32_psllv2di((__v2di)__X, (__v2di)__Y);
@@ -3810,7 +3810,7 @@ _mm_sllv_epi64(__m128i __X, __m128i __Y)
 ///    A 256-bit vector of [8 x i32] containing the unsigned shift counts (in
 ///    bits).
 /// \returns A 256-bit vector of [8 x i32] containing the result.
-static __inline__ __m256i __DEFAULT_FN_ATTRS256_CONSTEXPR
+static __inline__ __m256i __DEFAULT_FN_ATTRS256
 _mm256_srav_epi32(__m256i __X, __m256i __Y)
 {
   return (__m256i)__builtin_ia32_psrav8si((__v8si)__X, (__v8si)__Y);
@@ -3833,7 +3833,7 @@ _mm256_srav_epi32(__m256i __X, __m256i __Y)
 ///    A 128-bit vector of [4 x i32] containing the unsigned shift counts (in
 ///    bits).
 /// \returns A 128-bit vector of [4 x i32] containing the result.
-static __inline__ __m128i __DEFAULT_FN_ATTRS128_CONSTEXPR
+static __inline__ __m128i __DEFAULT_FN_ATTRS128
 _mm_srav_epi32(__m128i __X, __m128i __Y)
 {
   return (__m128i)__builtin_ia32_psrav4si((__v4si)__X, (__v4si)__Y);
@@ -3855,7 +3855,7 @@ _mm_srav_epi32(__m128i __X, __m128i __Y)
 ///    A 256-bit vector of [8 x i32] containing the unsigned shift counts (in
 ///    bits).
 /// \returns A 256-bit vector of [8 x i32] containing the result.
-static __inline__ __m256i __DEFAULT_FN_ATTRS256_CONSTEXPR
+static __inline__ __m256i __DEFAULT_FN_ATTRS256
 _mm256_srlv_epi32(__m256i __X, __m256i __Y)
 {
   return (__m256i)__builtin_ia32_psrlv8si((__v8si)__X, (__v8si)__Y);
@@ -3877,7 +3877,7 @@ _mm256_srlv_epi32(__m256i __X, __m256i __Y)
 ///    A 128-bit vector of [4 x i32] containing the unsigned shift counts (in
 ///    bits).
 /// \returns A 128-bit vector of [4 x i32] containing the result.
-static __inline__ __m128i __DEFAULT_FN_ATTRS128_CONSTEXPR
+static __inline__ __m128i __DEFAULT_FN_ATTRS128
 _mm_srlv_epi32(__m128i __X, __m128i __Y)
 {
   return (__m128i)__builtin_ia32_psrlv4si((__v4si)__X, (__v4si)__Y);
@@ -3899,7 +3899,7 @@ _mm_srlv_epi32(__m128i __X, __m128i __Y)
 ///    A 256-bit vector of [4 x i64] containing the unsigned shift counts (in
 ///    bits).
 /// \returns A 256-bit vector of [4 x i64] containing the result.
-static __inline__ __m256i __DEFAULT_FN_ATTRS256_CONSTEXPR
+static __inline__ __m256i __DEFAULT_FN_ATTRS256
 _mm256_srlv_epi64(__m256i __X, __m256i __Y)
 {
   return (__m256i)__builtin_ia32_psrlv4di((__v4di)__X, (__v4di)__Y);
@@ -3921,7 +3921,7 @@ _mm256_srlv_epi64(__m256i __X, __m256i __Y)
 ///    A 128-bit vector of [2 x i64] containing the unsigned shift counts (in
 ///    bits).
 /// \returns A 128-bit vector of [2 x i64] containing the result.
-static __inline__ __m128i __DEFAULT_FN_ATTRS128_CONSTEXPR
+static __inline__ __m128i __DEFAULT_FN_ATTRS128
 _mm_srlv_epi64(__m128i __X, __m128i __Y)
 {
   return (__m128i)__builtin_ia32_psrlv2di((__v2di)__X, (__v2di)__Y);

clang/test/CodeGen/X86/avx2-builtins.c

@@ -327,6 +327,7 @@ __m256i test_mm256_cvtepi8_epi16(__m128i a) {
   // CHECK: sext <16 x i8> %{{.*}} to <16 x i16>
   return _mm256_cvtepi8_epi16(a);
 }
+
 TEST_CONSTEXPR(match_v16hi(_mm256_cvtepi8_epi16(_mm_setr_epi8(-3, 2, -1, 0, 1, -2, 3, -4, 5, -6, 7, -8, 9, -10, 11, -12)), -3, 2, -1, 0, 1, -2, 3, -4, 5, -6, 7, -8, 9, -10, 11, -12));
 
 __m256i test_mm256_cvtepi8_epi32(__m128i a) {
@@ -335,6 +336,7 @@ __m256i test_mm256_cvtepi8_epi32(__m128i a) {
   // CHECK: sext <8 x i8> %{{.*}} to <8 x i32>
   return _mm256_cvtepi8_epi32(a);
 }
+
 TEST_CONSTEXPR(match_v8si(_mm256_cvtepi8_epi32(_mm_setr_epi8(-3, 2, -1, 0, 1, -2, 3, -4, 5, -6, 7, -8, 9, -10, 11, -12)), -3, 2, -1, 0, 1, -2, 3, -4));
 
 __m256i test_mm256_cvtepi8_epi64(__m128i a) {
@@ -343,6 +345,7 @@ __m256i test_mm256_cvtepi8_epi64(__m128i a) {
   // CHECK: sext <4 x i8> %{{.*}} to <4 x i64>
   return _mm256_cvtepi8_epi64(a);
 }
+
 TEST_CONSTEXPR(match_v4di(_mm256_cvtepi8_epi64(_mm_setr_epi8(-3, 2, -1, 0, 1, -2, 3, -4, 5, -6, 7, -8, 9, -10, 11, -12)), -3, 2, -1, 0));
 
 __m256i test_mm256_cvtepi16_epi32(__m128i a) {
@@ -350,6 +353,7 @@ __m256i test_mm256_cvtepi16_epi32(__m128i a) {
   // CHECK: sext <8 x i16> %{{.*}} to <8 x i32>
   return _mm256_cvtepi16_epi32(a);
 }
+
 TEST_CONSTEXPR(match_v8si(_mm256_cvtepi16_epi32(_mm_setr_epi16(-300, 2, -1, 0, 1, -2, 3, -4)), -300, 2, -1, 0, 1, -2, 3, -4));
 
 __m256i test_mm256_cvtepi16_epi64(__m128i a) {
@@ -358,6 +362,7 @@ __m256i test_mm256_cvtepi16_epi64(__m128i a) {
   // CHECK: sext <4 x i16> %{{.*}} to <4 x i64>
   return _mm256_cvtepi16_epi64(a);
 }
+
 TEST_CONSTEXPR(match_v4di(_mm256_cvtepi16_epi64(_mm_setr_epi16(-300, 2, -1, 0, 1, -2, 3, -4)), -300, 2, -1, 0));
 
 __m256i test_mm256_cvtepi32_epi64(__m128i a) {
@@ -365,6 +370,7 @@ __m256i test_mm256_cvtepi32_epi64(__m128i a) {
   // CHECK: sext <4 x i32> %{{.*}} to <4 x i64>
   return _mm256_cvtepi32_epi64(a);
 }
+
 TEST_CONSTEXPR(match_v4di(_mm256_cvtepi32_epi64(_mm_setr_epi32(-70000, 2, -1, 0)), -70000, 2, -1, 0));
 
 __m256i test_mm256_cvtepu8_epi16(__m128i a) {
@@ -372,6 +378,7 @@ __m256i test_mm256_cvtepu8_epi16(__m128i a) {
   // CHECK: zext <16 x i8> %{{.*}} to <16 x i16>
   return _mm256_cvtepu8_epi16(a);
 }
+
 TEST_CONSTEXPR(match_v16hi(_mm256_cvtepu8_epi16(_mm_setr_epi8(-3, 2, -1, 0, 1, -2, 3, -4, 5, -6, 7, -8, 9, -10, 11, -12)), 253, 2, 255, 0, 1, 254, 3, 252, 5, 250, 7, 248, 9, 246, 11, 244));
 
 __m256i test_mm256_cvtepu8_epi32(__m128i a) {
@@ -380,6 +387,7 @@ __m256i test_mm256_cvtepu8_epi32(__m128i a) {
   // CHECK: zext <8 x i8> %{{.*}} to <8 x i32>
   return _mm256_cvtepu8_epi32(a);
 }
+
 TEST_CONSTEXPR(match_v8si(_mm256_cvtepu8_epi32(_mm_setr_epi8(-3, 2, -1, 0, 1, -2, 3, -4, 5, -6, 7, -8, 9, -10, 11, -12)), 253, 2, 255, 0, 1, 254, 3, 252));
 
 __m256i test_mm256_cvtepu8_epi64(__m128i a) {
@@ -388,6 +396,7 @@ __m256i test_mm256_cvtepu8_epi64(__m128i a) {
   // CHECK: zext <4 x i8> %{{.*}} to <4 x i64>
   return _mm256_cvtepu8_epi64(a);
 }
+
 TEST_CONSTEXPR(match_v4di(_mm256_cvtepu8_epi64(_mm_setr_epi8(-3, 2, -1, 0, 1, -2, 3, -4, 5, -6, 7, -8, 9, -10, 11, -12)), 253, 2, 255, 0));
 
 __m256i test_mm256_cvtepu16_epi32(__m128i a) {
@@ -395,6 +404,7 @@ __m256i test_mm256_cvtepu16_epi32(__m128i a) {
   // CHECK: zext <8 x i16> {{.*}} to <8 x i32>
   return _mm256_cvtepu16_epi32(a);
 }
+
 TEST_CONSTEXPR(match_v8si(_mm256_cvtepu16_epi32(_mm_setr_epi16(-300, 2, -1, 0, 1, -2, 3, -4)), 65236, 2, 65535, 0, 1, 65534, 3, 65532));
 
 __m256i test_mm256_cvtepu16_epi64(__m128i a) {
@@ -403,6 +413,7 @@ __m256i test_mm256_cvtepu16_epi64(__m128i a) {
   // CHECK: zext <4 x i16> %{{.*}} to <4 x i64>
   return _mm256_cvtepu16_epi64(a);
 }
+
 TEST_CONSTEXPR(match_v4di(_mm256_cvtepu16_epi64(_mm_setr_epi16(-300, 2, -1, 0, 1, -2, 3, -4)), 65236, 2, 65535, 0));
 
 __m256i test_mm256_cvtepu32_epi64(__m128i a) {
@@ -410,6 +421,7 @@ __m256i test_mm256_cvtepu32_epi64(__m128i a) {
   // CHECK: zext <4 x i32> %{{.*}} to <4 x i64>
   return _mm256_cvtepu32_epi64(a);
 }
+
 TEST_CONSTEXPR(match_v4di(_mm256_cvtepu32_epi64(_mm_setr_epi32(-70000, 2, -1, 0)), 4294897296, 2, 4294967295, 0));
 
 __m128i test0_mm256_extracti128_si256_0(__m256i a) {
@@ -1108,28 +1120,24 @@ __m128i test_mm_sllv_epi32(__m128i a, __m128i b) {
   // CHECK: call <4 x i32> @llvm.x86.avx2.psllv.d(<4 x i32> %{{.*}}, <4 x i32> %{{.*}})
   return _mm_sllv_epi32(a, b);
 }
-TEST_CONSTEXPR(match_v4si(_mm_sllv_epi32((__m128i)(__v4si){1, -2, 3, -4}, (__m128i)(__v4si){1, 2, 3, -4}), 2, -8, 24, 0));
 
 __m256i test_mm256_sllv_epi32(__m256i a, __m256i b) {
   // CHECK-LABEL: test_mm256_sllv_epi32
   // CHECK: call <8 x i32> @llvm.x86.avx2.psllv.d.256(<8 x i32> %{{.*}}, <8 x i32> %{{.*}})
   return _mm256_sllv_epi32(a, b);
 }
-TEST_CONSTEXPR(match_v8si(_mm256_sllv_epi32((__m256i)(__v8si){1, -2, 3, -4, 5, -6, 7, -8}, (__m256i)(__v8si){1, 2, 3, 4, -17, 31, 33, 29}), 2, -8, 24, -64, 0, 0, 0, 0));
 
 __m128i test_mm_sllv_epi64(__m128i a, __m128i b) {
   // CHECK-LABEL: test_mm_sllv_epi64
   // CHECK: call {{.*}}<2 x i64> @llvm.x86.avx2.psllv.q(<2 x i64> %{{.*}}, <2 x i64> %{{.*}})
   return _mm_sllv_epi64(a, b);
 }
-TEST_CONSTEXPR(match_m128i(_mm_sllv_epi64((__m128i)(__v2di){1, -3}, (__m128i)(__v2di){8, 63}), 256, 0x8000000000000000ULL));
 
 __m256i test_mm256_sllv_epi64(__m256i a, __m256i b) {
   // CHECK-LABEL: test_mm256_sllv_epi64
   // CHECK: call {{.*}}<4 x i64> @llvm.x86.avx2.psllv.q.256(<4 x i64> %{{.*}}, <4 x i64> %{{.*}})
   return _mm256_sllv_epi64(a, b);
 }
-TEST_CONSTEXPR(match_m256i(_mm256_sllv_epi64((__m256i)(__v4di){1, -2, 3, -4}, (__m256i)(__v4di){1, 2, 3, -4}), 2, -8, 24, 0));
 
 __m256i test_mm256_sra_epi16(__m256i a, __m128i b) {
   // CHECK-LABEL: test_mm256_sra_epi16
@@ -1172,14 +1180,12 @@ __m128i test_mm_srav_epi32(__m128i a, __m128i b) {
   // CHECK: call <4 x i32> @llvm.x86.avx2.psrav.d(<4 x i32> %{{.*}}, <4 x i32> %{{.*}})
   return _mm_srav_epi32(a, b);
 }
-TEST_CONSTEXPR(match_v4si(_mm_srav_epi32((__m128i)(__v4si){1, -2, 3, -4}, (__m128i)(__v4si){1, 2, 3, -4}), 0, -1, 0, -1));
 
 __m256i test_mm256_srav_epi32(__m256i a, __m256i b) {
   // CHECK-LABEL: test_mm256_srav_epi32
   // CHECK: call <8 x i32> @llvm.x86.avx2.psrav.d.256(<8 x i32> %{{.*}}, <8 x i32> %{{.*}})
   return _mm256_srav_epi32(a, b);
 }
-TEST_CONSTEXPR(match_v8si(_mm256_srav_epi32((__m256i)(__v8si){1, -2, 3, -4, 5, -6, 7, -8}, (__m256i)(__v8si){1, 2, 3, 4, -17, 31, 33, 29}), 0, -1, 0, -1, 0, -1, 0, -1));
 
 __m256i test_mm256_srl_epi16(__m256i a, __m128i b) {
   // CHECK-LABEL: test_mm256_srl_epi16
@@ -1246,28 +1252,24 @@ __m128i test_mm_srlv_epi32(__m128i a, __m128i b) {
   // CHECK: call <4 x i32> @llvm.x86.avx2.psrlv.d(<4 x i32> %{{.*}}, <4 x i32> %{{.*}})
   return _mm_srlv_epi32(a, b);
 }
-TEST_CONSTEXPR(match_v4si(_mm_srlv_epi32((__m128i)(__v4si){1, -2, 3, -4}, (__m128i)(__v4si){1, 2, 3, -4}), 0, 1073741823, 0, 0));
 
 __m256i test_mm256_srlv_epi32(__m256i a, __m256i b) {
   // CHECK-LABEL: test_mm256_srlv_epi32
   // CHECK: call <8 x i32> @llvm.x86.avx2.psrlv.d.256(<8 x i32> %{{.*}}, <8 x i32> %{{.*}})
   return _mm256_srlv_epi32(a, b);
 }
-TEST_CONSTEXPR(match_v8si(_mm256_srlv_epi32((__m256i)(__v8si){1, -2, 3, -4, 5, -6, 7, -8}, (__m256i)(__v8si){1, 2, 3, 4, -17, 31, 33, 29}), 0, 1073741823, 0, 268435455, 0, 1, 0, 7));
 
 __m128i test_mm_srlv_epi64(__m128i a, __m128i b) {
   // CHECK-LABEL: test_mm_srlv_epi64
   // CHECK: call {{.*}}<2 x i64> @llvm.x86.avx2.psrlv.q(<2 x i64> %{{.*}}, <2 x i64> %{{.*}})
   return _mm_srlv_epi64(a, b);
 }
-TEST_CONSTEXPR(match_m128i(_mm_srlv_epi64((__m128i)(__v2di){1, -3}, (__m128i)(__v2di){8, 63}), 0, 1));
 
 __m256i test_mm256_srlv_epi64(__m256i a, __m256i b) {
   // CHECK-LABEL: test_mm256_srlv_epi64
   // CHECK: call {{.*}}<4 x i64> @llvm.x86.avx2.psrlv.q.256(<4 x i64> %{{.*}}, <4 x i64> %{{.*}})
   return _mm256_srlv_epi64(a, b);
 }
-TEST_CONSTEXPR(match_m256i(_mm256_srlv_epi64((__m256i)(__v4di){1, -2, 3, -4}, (__m256i)(__v4di){1, 2, 3, -4}), 0, 0x3FFFFFFFFFFFFFFFULL, 0, 0));
 
 __m256i test_mm256_stream_load_si256(__m256i const *a) {
   // CHECK-LABEL: test_mm256_stream_load_si256

clang/test/Preprocessor/init.c

@@ -1622,14 +1622,6 @@
 // RUN: %clang_cc1 -x c -std=c99 -E -dM -ffreestanding -triple=amd64-unknown-openbsd < /dev/null | FileCheck -match-full-lines -check-prefix OPENBSD-STDC-N %s
 // OPENBSD-STDC-N-NOT:#define __STDC_NO_THREADS__ 1
 //
-// RUN: %clang_cc1 -x c -std=c11 -E -dM -ffreestanding -triple=x86_64-unknown-dragonfly < /dev/null | FileCheck -match-full-lines -check-prefix DRAGONFLY-STDC %s
-// RUN: %clang_cc1 -x c -std=gnu11 -E -dM -ffreestanding -triple=x86_64-unknown-dragonfly < /dev/null | FileCheck -match-full-lines -check-prefix DRAGONFLY-STDC %s
-// RUN: %clang_cc1 -x c -std=c17 -E -dM -ffreestanding -triple=x86_64-unknown-dragonfly < /dev/null | FileCheck -match-full-lines -check-prefix DRAGONFLY-STDC %s
-// DRAGONFLY-STDC:#define __STDC_NO_THREADS__ 1
-//
-// RUN: %clang_cc1 -x c -std=c99 -E -dM -ffreestanding -triple=x86_64-unknown-dragonfly < /dev/null | FileCheck -match-full-lines -check-prefix DRAGONFLY-STDC-N %s
-// DRAGONFLY-STDC-N-NOT:#define __STDC_NO_THREADS__ 1
-//
 // RUN: %clang_cc1 -triple=aarch64-unknown-managarm-mlibc -E -dM < /dev/null | FileCheck -match-full-lines -check-prefix MANAGARM %s
 // RUN: %clang_cc1 -triple=riscv64-unknown-managarm-mlibc -E -dM < /dev/null | FileCheck -match-full-lines -check-prefix MANAGARM %s
 // RUN: %clang_cc1 -triple=x86_64-unknown-managarm-mlibc -E -dM < /dev/null | FileCheck -match-full-lines -check-prefix MANAGARM %s

compiler-rt/lib/asan/CMakeLists.txt

@@ -106,12 +106,6 @@ if(MSVC)
 endif()
 set(ASAN_CFLAGS ${SANITIZER_COMMON_CFLAGS})
 
-# Win/ASan relies on the runtime functions being hotpatchable. See
-# https://github.com/llvm/llvm-project/pull/149444
-if(MSVC)
-  list(APPEND ASAN_CFLAGS /hotpatch)
-endif()
-
 append_list_if(MSVC /Zl ASAN_CFLAGS)
 
 set(ASAN_COMMON_DEFINITIONS "")

flang/lib/Optimizer/Builder/IntrinsicCall.cpp

@@ -2917,11 +2917,10 @@ mlir::Value IntrinsicLibrary::genAtand(mlir::Type resultType,
         mlir::FunctionType::get(context, {resultType}, {args[0].getType()});
     atan = getRuntimeCallGenerator("atan", ftype)(builder, loc, args);
   }
-  const llvm::fltSemantics &fltSem =
-      llvm::cast<mlir::FloatType>(resultType).getFloatSemantics();
-  llvm::APFloat pi = llvm::APFloat(fltSem, llvm::numbers::pis);
-  mlir::Value factor = builder.createRealConstant(
-      loc, resultType, llvm::APFloat(fltSem, "180.0") / pi);
+  llvm::APFloat pi = llvm::APFloat(llvm::numbers::pi);
+  mlir::Value dfactor = builder.createRealConstant(
+      loc, mlir::Float64Type::get(context), llvm::APFloat(180.0) / pi);
+  mlir::Value factor = builder.createConvert(loc, resultType, dfactor);
   return mlir::arith::MulFOp::create(builder, loc, atan, factor);
 }
 

flang/test/Lower/Intrinsics/atan2d.f90

@@ -1,19 +1,21 @@
 ! RUN: bbc -emit-fir -hlfir=false %s -o - | FileCheck %s --check-prefixes="CHECK,CHECK-FAST"
 ! RUN: %flang_fc1 -emit-fir -flang-deprecated-no-hlfir %s -o - | FileCheck %s --check-prefixes="CHECK,CHECK-FAST"
 
-function test_real4(y, x)
+
+function test_real4(y,x)
   real(4) :: x, y, test_real4
-  test_real4 = atan2d(y, x)
+  test_real4 = atan2d(y,x)
 end function
 
 ! CHECK-LABEL: @_QPtest_real4
 ! CHECK-FAST: %[[atan2:.*]] = math.atan2 %{{.*}}, %{{.*}}: f32
-! CHECK: %[[factor:.*]] = arith.constant 57.2957763 : f32
+! CHECK: %[[dfactor:.*]] = arith.constant 57.295779513082323 : f64
+! CHECK: %[[factor:.*]] = fir.convert %[[dfactor]] : (f64) -> f32
 ! CHECK: %{{.*}} = arith.mulf %[[atan2]], %[[factor]] fastmath<contract> : f32
 
-function test_real8(y, x)
+function test_real8(y,x)
   real(8) :: x, y, test_real8
-  test_real8 = atan2d(y, x)
+  test_real8 = atan2d(y,x)
 end function
 
 ! CHECK-LABEL: @_QPtest_real8

flang/test/Lower/Intrinsics/atand.f90

@@ -1,4 +1,3 @@
-! REQUIRES: flang-supports-f128-math
 ! RUN: bbc -emit-fir -hlfir=false %s -o - | FileCheck %s --check-prefixes="CHECK,CHECK-FAST"
 ! RUN: bbc --math-runtime=precise -emit-fir -hlfir=false %s -o - | FileCheck %s --check-prefixes="CHECK,CHECK-PRECISE"
 ! RUN: %flang_fc1 -emit-fir -flang-deprecated-no-hlfir %s -o - | FileCheck %s --check-prefixes="CHECK,CHECK-FAST"
@@ -11,7 +10,8 @@ end function
 ! CHECK-LABEL: @_QPtest_real4
 ! CHECK-PRECISE: %[[atan:.*]] = fir.call @atanf({{%[A-Za-z0-9._]+}}) fastmath<contract> : (f32) -> f32
 ! CHECK-FAST: %[[atan:.*]] = math.atan %{{.*}} : f32
-! CHECK: %[[factor:.*]] = arith.constant 57.2957763 : f32
+! CHECK: %[[dfactor:.*]] = arith.constant 57.295779513082323 : f64
+! CHECK: %[[factor:.*]] = fir.convert %[[dfactor]] : (f64) -> f32
 ! CHECK: %{{.*}} = arith.mulf %[[atan]], %[[factor]] fastmath<contract> : f32
 
 function test_real8(x)
@@ -25,42 +25,23 @@ end function
 ! CHECK: %[[factor:.*]] = arith.constant 57.295779513082323 : f64
 ! CHECK: %{{.*}} = arith.mulf %[[atan]], %[[factor]] fastmath<contract> : f64
 
-function test_real16(x)
-  real(16) :: x, test_real16
-  test_real16 = atand(x)
-end function
-
-! CHECK-LABEL: @_QPtest_real16
-! CHECK: %[[atan:.*]] = fir.call @_FortranAAtanF128({{.*}}) fastmath<contract> : (f128) -> f128
-! CHECK: %[[factor:.*]] = arith.constant 57.295779513082320876798154814105{{.*}} : f128
-! CHECK: %{{.*}} = arith.mulf %[[atan]], %[[factor]] fastmath<contract> : f128
-
-function test_real4_yx(y, x)
+function test_real4_yx(y,x)
   real(4) :: x, y, test_real4
-  test_real4 = atand(y, x)
+  test_real4 = atand(y,x)
 end function
 
 ! CHECK-LABEL: @_QPtest_real4_yx
 ! CHECK: %[[atan2:.*]] = math.atan2 %{{.*}}, %{{.*}}: f32
-! CHECK: %[[factor:.*]] = arith.constant 57.2957763 : f32
+! CHECK: %[[dfactor:.*]] = arith.constant 57.295779513082323 : f64
+! CHECK: %[[factor:.*]] = fir.convert %[[dfactor]] : (f64) -> f32
 ! CHECK: %{{.*}} = arith.mulf %[[atan2]], %[[factor]] fastmath<contract> : f32
 
-function test_real8_yx(y, x)
+function test_real8_yx(y,x)
   real(8) :: x, y, test_real8
-  test_real8 = atand(y, x)
+  test_real8 = atand(y,x)
 end function
 
 ! CHECK-LABEL: @_QPtest_real8_yx
 ! CHECK: %[[atan2:.*]] = math.atan2 %{{.*}}, %{{.*}}: f64
 ! CHECK: %[[factor:.*]] = arith.constant 57.295779513082323 : f64
 ! CHECK: %{{.*}} = arith.mulf %[[atan2]], %[[factor]] fastmath<contract> : f64
-
-function test_real16_yx(y, x)
-  real(16) :: x, y, test_real16
-  test_real16 = atand(y, x)
-end function
-
-! CHECK-LABEL: @_QPtest_real16_yx
-! CHECK: %[[atan2:.*]] = math.atan2 %{{.*}}, %{{.*}}: f128
-! CHECK: %[[factor:.*]] = arith.constant 57.295779513082320876798154814105{{.*}} : f128
-! CHECK: %{{.*}} = arith.mulf %[[atan]], %[[factor]] fastmath<contract> : f128

libc/config/gpu/nvptx/entrypoints.txt

@@ -280,7 +280,6 @@ set(TARGET_LIBC_ENTRYPOINTS
 
 set(TARGET_LIBM_ENTRYPOINTS
     # math.h entrypoints
-    libc.src.math.acos
     libc.src.math.acosf
     libc.src.math.acoshf
     libc.src.math.asin

libc/include/math.yaml

@@ -2432,6 +2432,14 @@ functions:
     return_type: double
     arguments:
       - type: double
+  - name: sincosf
+    standards:
+      - gnu
+    return_type: void
+    arguments:
+      - type: float
+      - type: float *
+      - type: float *
   - name: sinf
     standards:
       - stdc
@@ -2445,22 +2453,6 @@ functions:
     arguments:
       - type: _Float16
     guard: LIBC_TYPES_HAS_FLOAT16
-  - name: sincos
-    standards:
-      - gnu
-    return_type: void
-    arguments:
-      - type: double
-      - type: double *
-      - type: double *
-  - name: sincosf
-    standards:
-      - gnu
-    return_type: void
-    arguments:
-      - type: float
-      - type: float *
-      - type: float *
   - name: sinhf
     standards:
       - stdc

libcxx/include/map

@@ -978,11 +978,11 @@ public:
 
 #  ifndef _LIBCPP_CXX03_LANG
 
-  _LIBCPP_HIDE_FROM_ABI map(map&& __m) = default;
+  _LIBCPP_HIDE_FROM_ABI map(map&& __m) noexcept(is_nothrow_move_constructible<__base>::value) = default;
 
   _LIBCPP_HIDE_FROM_ABI map(map&& __m, const allocator_type& __a);
 
-  _LIBCPP_HIDE_FROM_ABI map& operator=(map&& __m) = default;
+  _LIBCPP_HIDE_FROM_ABI map& operator=(map&& __m) noexcept(is_nothrow_move_assignable<__base>::value) = default;
 
   _LIBCPP_HIDE_FROM_ABI map(initializer_list<value_type> __il, const key_compare& __comp = key_compare())
       : __tree_(__vc(__comp)) {
@@ -1646,11 +1646,12 @@ public:
 
 #  ifndef _LIBCPP_CXX03_LANG
 
-  _LIBCPP_HIDE_FROM_ABI multimap(multimap&& __m) = default;
+  _LIBCPP_HIDE_FROM_ABI multimap(multimap&& __m) noexcept(is_nothrow_move_constructible<__base>::value) = default;
 
   _LIBCPP_HIDE_FROM_ABI multimap(multimap&& __m, const allocator_type& __a);
 
-  _LIBCPP_HIDE_FROM_ABI multimap& operator=(multimap&& __m) = default;
+  _LIBCPP_HIDE_FROM_ABI multimap&
+  operator=(multimap&& __m) noexcept(is_nothrow_move_assignable<__base>::value) = default;
 
   _LIBCPP_HIDE_FROM_ABI multimap(initializer_list<value_type> __il, const key_compare& __comp = key_compare())
       : __tree_(__vc(__comp)) {

libcxx/include/set

@@ -667,7 +667,7 @@ public:
   _LIBCPP_HIDE_FROM_ABI set& operator=(const set& __s) = default;
 
 #  ifndef _LIBCPP_CXX03_LANG
-  _LIBCPP_HIDE_FROM_ABI set(set&& __s) = default;
+  _LIBCPP_HIDE_FROM_ABI set(set&& __s) noexcept(is_nothrow_move_constructible<__base>::value) = default;
 #  endif // _LIBCPP_CXX03_LANG
 
   _LIBCPP_HIDE_FROM_ABI explicit set(const allocator_type& __a) : __tree_(__a) {}
@@ -699,7 +699,10 @@ public:
     return *this;
   }
 
-  _LIBCPP_HIDE_FROM_ABI set& operator=(set&& __s) = default;
+  _LIBCPP_HIDE_FROM_ABI set& operator=(set&& __s) noexcept(is_nothrow_move_assignable<__base>::value) {
+    __tree_ = std::move(__s.__tree_);
+    return *this;
+  }
 #  endif // _LIBCPP_CXX03_LANG
 
   _LIBCPP_HIDE_FROM_ABI ~set() { static_assert(sizeof(std::__diagnose_non_const_comparator<_Key, _Compare>()), ""); }
@@ -1123,7 +1126,7 @@ public:
   _LIBCPP_HIDE_FROM_ABI multiset& operator=(const multiset& __s) = default;
 
 #  ifndef _LIBCPP_CXX03_LANG
-  _LIBCPP_HIDE_FROM_ABI multiset(multiset&& __s) = default;
+  _LIBCPP_HIDE_FROM_ABI multiset(multiset&& __s) noexcept(is_nothrow_move_constructible<__base>::value) = default;
 
   _LIBCPP_HIDE_FROM_ABI multiset(multiset&& __s, const allocator_type& __a);
 #  endif // _LIBCPP_CXX03_LANG
@@ -1155,7 +1158,10 @@ public:
     return *this;
   }
 
-  _LIBCPP_HIDE_FROM_ABI multiset& operator=(multiset&& __s) = default;
+  _LIBCPP_HIDE_FROM_ABI multiset& operator=(multiset&& __s) _NOEXCEPT_(is_nothrow_move_assignable<__base>::value) {
+    __tree_ = std::move(__s.__tree_);
+    return *this;
+  }
 #  endif // _LIBCPP_CXX03_LANG
 
   _LIBCPP_HIDE_FROM_ABI ~multiset() {

libcxx/include/unordered_map

@@ -1049,7 +1049,8 @@ public:
   _LIBCPP_HIDE_FROM_ABI unordered_map(const unordered_map& __u) = default;
   _LIBCPP_HIDE_FROM_ABI unordered_map(const unordered_map& __u, const allocator_type& __a);
 #  ifndef _LIBCPP_CXX03_LANG
-  _LIBCPP_HIDE_FROM_ABI unordered_map(unordered_map&& __u) = default;
+  _LIBCPP_HIDE_FROM_ABI unordered_map(unordered_map&& __u)
+      _NOEXCEPT_(is_nothrow_move_constructible<__table>::value) = default;
   _LIBCPP_HIDE_FROM_ABI unordered_map(unordered_map&& __u, const allocator_type& __a);
   _LIBCPP_HIDE_FROM_ABI unordered_map(initializer_list<value_type> __il);
   _LIBCPP_HIDE_FROM_ABI
@@ -1101,7 +1102,8 @@ public:
 
   _LIBCPP_HIDE_FROM_ABI unordered_map& operator=(const unordered_map& __u) = default;
 #  ifndef _LIBCPP_CXX03_LANG
-  _LIBCPP_HIDE_FROM_ABI unordered_map& operator=(unordered_map&& __u) = default;
+  _LIBCPP_HIDE_FROM_ABI unordered_map& operator=(unordered_map&& __u)
+      _NOEXCEPT_(is_nothrow_move_assignable<__table>::value) = default;
   _LIBCPP_HIDE_FROM_ABI unordered_map& operator=(initializer_list<value_type> __il);
 #  endif // _LIBCPP_CXX03_LANG
 
@@ -1821,7 +1823,8 @@ public:
   _LIBCPP_HIDE_FROM_ABI unordered_multimap(const unordered_multimap& __u) = default;
   _LIBCPP_HIDE_FROM_ABI unordered_multimap(const unordered_multimap& __u, const allocator_type& __a);
 #  ifndef _LIBCPP_CXX03_LANG
-  _LIBCPP_HIDE_FROM_ABI unordered_multimap(unordered_multimap&& __u) = default;
+  _LIBCPP_HIDE_FROM_ABI unordered_multimap(unordered_multimap&& __u)
+      _NOEXCEPT_(is_nothrow_move_constructible<__table>::value) = default;
   _LIBCPP_HIDE_FROM_ABI unordered_multimap(unordered_multimap&& __u, const allocator_type& __a);
   _LIBCPP_HIDE_FROM_ABI unordered_multimap(initializer_list<value_type> __il);
   _LIBCPP_HIDE_FROM_ABI unordered_multimap(
@@ -1873,7 +1876,8 @@ public:
 
   _LIBCPP_HIDE_FROM_ABI unordered_multimap& operator=(const unordered_multimap& __u) = default;
 #  ifndef _LIBCPP_CXX03_LANG
-  _LIBCPP_HIDE_FROM_ABI unordered_multimap& operator=(unordered_multimap&& __u) = default;
+  _LIBCPP_HIDE_FROM_ABI unordered_multimap& operator=(unordered_multimap&& __u)
+      _NOEXCEPT_(is_nothrow_move_assignable<__table>::value) = default;
   _LIBCPP_HIDE_FROM_ABI unordered_multimap& operator=(initializer_list<value_type> __il);
 #  endif // _LIBCPP_CXX03_LANG
 

libcxx/include/unordered_set

@@ -706,7 +706,7 @@ public:
   _LIBCPP_HIDE_FROM_ABI unordered_set(const unordered_set& __u) = default;
   _LIBCPP_HIDE_FROM_ABI unordered_set(const unordered_set& __u, const allocator_type& __a);
 #  ifndef _LIBCPP_CXX03_LANG
-  _LIBCPP_HIDE_FROM_ABI unordered_set(unordered_set&& __u) = default;
+  _LIBCPP_HIDE_FROM_ABI unordered_set(unordered_set&& __u) _NOEXCEPT_(is_nothrow_move_constructible<__table>::value);
   _LIBCPP_HIDE_FROM_ABI unordered_set(unordered_set&& __u, const allocator_type& __a);
   _LIBCPP_HIDE_FROM_ABI unordered_set(initializer_list<value_type> __il);
   _LIBCPP_HIDE_FROM_ABI
@@ -735,7 +735,8 @@ public:
 
   _LIBCPP_HIDE_FROM_ABI unordered_set& operator=(const unordered_set& __u) = default;
 #  ifndef _LIBCPP_CXX03_LANG
-  _LIBCPP_HIDE_FROM_ABI unordered_set& operator=(unordered_set&& __u) = default;
+  _LIBCPP_HIDE_FROM_ABI unordered_set& operator=(unordered_set&& __u)
+      _NOEXCEPT_(is_nothrow_move_assignable<__table>::value) = default;
   _LIBCPP_HIDE_FROM_ABI unordered_set& operator=(initializer_list<value_type> __il);
 #  endif // _LIBCPP_CXX03_LANG
 
@@ -1075,6 +1076,11 @@ unordered_set<_Value, _Hash, _Pred, _Alloc>::unordered_set(const unordered_set&
 
 #  ifndef _LIBCPP_CXX03_LANG
 
+template <class _Value, class _Hash, class _Pred, class _Alloc>
+inline unordered_set<_Value, _Hash, _Pred, _Alloc>::unordered_set(unordered_set&& __u)
+    _NOEXCEPT_(is_nothrow_move_constructible<__table>::value)
+    : __table_(std::move(__u.__table_)) {}
+
 template <class _Value, class _Hash, class _Pred, class _Alloc>
 unordered_set<_Value, _Hash, _Pred, _Alloc>::unordered_set(unordered_set&& __u, const allocator_type& __a)
     : __table_(std::move(__u.__table_), __a) {
@@ -1288,7 +1294,8 @@ public:
   _LIBCPP_HIDE_FROM_ABI unordered_multiset(const unordered_multiset& __u) = default;
   _LIBCPP_HIDE_FROM_ABI unordered_multiset(const unordered_multiset& __u, const allocator_type& __a);
 #  ifndef _LIBCPP_CXX03_LANG
-  _LIBCPP_HIDE_FROM_ABI unordered_multiset(unordered_multiset&& __u) = default;
+  _LIBCPP_HIDE_FROM_ABI unordered_multiset(unordered_multiset&& __u)
+      _NOEXCEPT_(is_nothrow_move_constructible<__table>::value);
   _LIBCPP_HIDE_FROM_ABI unordered_multiset(unordered_multiset&& __u, const allocator_type& __a);
   _LIBCPP_HIDE_FROM_ABI unordered_multiset(initializer_list<value_type> __il);
   _LIBCPP_HIDE_FROM_ABI unordered_multiset(
@@ -1317,7 +1324,8 @@ public:
 
   _LIBCPP_HIDE_FROM_ABI unordered_multiset& operator=(const unordered_multiset& __u) = default;
 #  ifndef _LIBCPP_CXX03_LANG
-  _LIBCPP_HIDE_FROM_ABI unordered_multiset& operator=(unordered_multiset&& __u) = default;
+  _LIBCPP_HIDE_FROM_ABI unordered_multiset& operator=(unordered_multiset&& __u)
+      _NOEXCEPT_(is_nothrow_move_assignable<__table>::value) = default;
   _LIBCPP_HIDE_FROM_ABI unordered_multiset& operator=(initializer_list<value_type> __il);
 #  endif // _LIBCPP_CXX03_LANG
 
@@ -1667,6 +1675,11 @@ unordered_multiset<_Value, _Hash, _Pred, _Alloc>::unordered_multiset(
 
 #  ifndef _LIBCPP_CXX03_LANG
 
+template <class _Value, class _Hash, class _Pred, class _Alloc>
+inline unordered_multiset<_Value, _Hash, _Pred, _Alloc>::unordered_multiset(unordered_multiset&& __u)
+    _NOEXCEPT_(is_nothrow_move_constructible<__table>::value)
+    : __table_(std::move(__u.__table_)) {}
+
 template <class _Value, class _Hash, class _Pred, class _Alloc>
 unordered_multiset<_Value, _Hash, _Pred, _Alloc>::unordered_multiset(
     unordered_multiset&& __u, const allocator_type& __a)

lld/COFF/SymbolTable.cpp

@@ -1399,7 +1399,6 @@ void SymbolTable::resolveAlternateNames() {
       auto toUndef = dyn_cast<Undefined>(toSym);
       if (toUndef && (!toUndef->weakAlias || toUndef->isAntiDep))
         continue;
-      toSym->isUsedInRegularObj = true;
       if (toSym->isLazy())
         forceLazy(toSym);
       u->setWeakAlias(toSym);

lld/ELF/Arch/LoongArch.cpp

@@ -39,7 +39,6 @@ public:
   void relocate(uint8_t *loc, const Relocation &rel,
                 uint64_t val) const override;
   bool relaxOnce(int pass) const override;
-  bool synthesizeAlign(uint64_t &dot, InputSection *sec) override;
   RelExpr adjustTlsExpr(RelType type, RelExpr expr) const override;
   void relocateAlloc(InputSectionBase &sec, uint8_t *buf) const override;
   void finalizeRelax(int passes) const override;
@@ -49,19 +48,6 @@ private:
   void tlsdescToLe(uint8_t *loc, const Relocation &rel, uint64_t val) const;
   bool tryGotToPCRel(uint8_t *loc, const Relocation &rHi20,
                      const Relocation &rLo12, uint64_t secAddr) const;
-  template <class ELFT, class RelTy>
-  bool synthesizeAlignForInput(uint64_t &dot, InputSection *sec,
-                               Relocs<RelTy> rels);
-  template <class ELFT, class RelTy>
-  void finalizeSynthesizeAligns(uint64_t &dot, InputSection *sec,
-                                Relocs<RelTy> rels);
-  template <class ELFT>
-  bool synthesizeAlignAux(uint64_t &dot, InputSection *sec);
-
-  // The following two variables are used by synthesized ALIGN relocations.
-  InputSection *baseSec = nullptr;
-  // r_offset and r_addend pairs.
-  SmallVector<std::pair<uint64_t, uint64_t>, 0> synthesizedAligns;
 };
 } // end anonymous namespace
 
@@ -780,117 +766,6 @@ void LoongArch::relocate(uint8_t *loc, const Relocation &rel,
   }
 }
 
-// If the section alignment is > 4, advance `dot` to insert NOPs and synthesize
-// an ALIGN relocation. Otherwise, return false to use default handling.
-template <class ELFT, class RelTy>
-bool LoongArch::synthesizeAlignForInput(uint64_t &dot, InputSection *sec,
-                                        Relocs<RelTy> rels) {
-  if (!baseSec) {
-    // Record the first input section with RELAX relocations. We will synthesize
-    // ALIGN relocations here.
-    for (auto rel : rels) {
-      if (rel.getType(false) == R_LARCH_RELAX) {
-        baseSec = sec;
-        break;
-      }
-    }
-  } else if (sec->addralign > 4) {
-    // If the alignment is > 4 and the section does not start with an ALIGN
-    // relocation, synthesize one.
-    bool hasAlignRel = llvm::any_of(rels, [](const RelTy &rel) {
-      return rel.r_offset == 0 && rel.getType(false) == R_LARCH_ALIGN;
-    });
-    if (!hasAlignRel) {
-      synthesizedAligns.emplace_back(dot - baseSec->getVA(),
-                                     sec->addralign - 4);
-      dot += sec->addralign - 4;
-      return true;
-    }
-  }
-  return false;
-}
-
-// Finalize the relocation section by appending synthesized ALIGN relocations
-// after processing all input sections.
-template <class ELFT, class RelTy>
-void LoongArch::finalizeSynthesizeAligns(uint64_t &dot, InputSection *sec,
-                                         Relocs<RelTy> rels) {
-  auto *f = cast<ObjFile<ELFT>>(baseSec->file);
-  auto shdr = f->template getELFShdrs<ELFT>()[baseSec->relSecIdx];
-  // Create a copy of InputSection.
-  sec = make<InputSection>(*f, shdr, baseSec->name);
-  auto *baseRelSec = cast<InputSection>(f->getSections()[baseSec->relSecIdx]);
-  *sec = *baseRelSec;
-  baseSec = nullptr;
-
-  // Allocate buffer for original and synthesized relocations in RELA format.
-  // If CREL is used, OutputSection::finalizeNonAllocCrel will convert RELA to
-  // CREL.
-  auto newSize = rels.size() + synthesizedAligns.size();
-  auto *relas = makeThreadLocalN<typename ELFT::Rela>(newSize);
-  sec->size = newSize * sizeof(typename ELFT::Rela);
-  sec->content_ = reinterpret_cast<uint8_t *>(relas);
-  sec->type = SHT_RELA;
-  // Copy original relocations to the new buffer, potentially converting CREL to
-  // RELA.
-  for (auto [i, r] : llvm::enumerate(rels)) {
-    relas[i].r_offset = r.r_offset;
-    relas[i].setSymbolAndType(r.getSymbol(0), r.getType(0), false);
-    if constexpr (RelTy::HasAddend)
-      relas[i].r_addend = r.r_addend;
-  }
-  // Append synthesized ALIGN relocations to the buffer.
-  for (auto [i, r] : llvm::enumerate(synthesizedAligns)) {
-    auto &rela = relas[rels.size() + i];
-    rela.r_offset = r.first;
-    rela.setSymbolAndType(0, R_LARCH_ALIGN, false);
-    rela.r_addend = r.second;
-  }
-  synthesizedAligns.clear();
-  // Replace the old relocation section with the new one in the output section.
-  // addOrphanSections ensures that the output relocation section is processed
-  // after osec.
-  for (SectionCommand *cmd : sec->getParent()->commands) {
-    auto *isd = dyn_cast<InputSectionDescription>(cmd);
-    if (!isd)
-      continue;
-    for (auto *&isec : isd->sections)
-      if (isec == baseRelSec)
-        isec = sec;
-  }
-}
-
-template <class ELFT>
-bool LoongArch::synthesizeAlignAux(uint64_t &dot, InputSection *sec) {
-  bool ret = false;
-  if (sec) {
-    invokeOnRelocs(*sec, ret = synthesizeAlignForInput<ELFT>, dot, sec);
-  } else if (baseSec) {
-    invokeOnRelocs(*baseSec, finalizeSynthesizeAligns<ELFT>, dot, sec);
-  }
-  return ret;
-}
-
-// Without linker relaxation enabled for a particular relocatable file or
-// section, the assembler will not generate R_LARCH_ALIGN relocations for
-// alignment directives. This becomes problematic in a two-stage linking
-// process: ld -r a.o b.o -o ab.o; ld ab.o -o ab. This function synthesizes an
-// R_LARCH_ALIGN relocation at section start when needed.
-//
-// When called with an input section (`sec` is not null): If the section
-// alignment is > 4, advance `dot` to insert NOPs and synthesize an ALIGN
-// relocation.
-//
-// When called after all input sections are processed (`sec` is null): The
-// output relocation section is updated with all the newly synthesized ALIGN
-// relocations.
-bool LoongArch::synthesizeAlign(uint64_t &dot, InputSection *sec) {
-  assert(ctx.arg.relocatable);
-  if (ctx.arg.is64)
-    return synthesizeAlignAux<ELF64LE>(dot, sec);
-  return synthesizeAlignAux<ELF32LE>(dot, sec);
-}
-
 static bool relaxable(ArrayRef<Relocation> relocs, size_t i) {
   return i + 1 < relocs.size() && relocs[i + 1].type == R_LARCH_RELAX;
 }

lld/ELF/LinkerScript.cpp

@@ -1230,9 +1230,9 @@ bool LinkerScript::assignOffsets(OutputSection *sec) {
   if (sec->firstInOverlay)
     state->overlaySize = 0;
 
-  bool synthesizeAlign =
-      ctx.arg.relocatable && ctx.arg.relax && (sec->flags & SHF_EXECINSTR) &&
-      (ctx.arg.emachine == EM_LOONGARCH || ctx.arg.emachine == EM_RISCV);
+  bool synthesizeAlign = ctx.arg.relocatable && ctx.arg.relax &&
+                         (sec->flags & SHF_EXECINSTR) &&
+                         ctx.arg.emachine == EM_RISCV;
   // We visited SectionsCommands from processSectionCommands to
   // layout sections. Now, we visit SectionsCommands again to fix
   // section offsets.

lld/ELF/OutputSections.cpp

@@ -899,8 +899,6 @@ std::array<uint8_t, 4> OutputSection::getFiller(Ctx &ctx) {
       return {1, 0, 1, 0};
     return {0x13, 0, 0, 0};
   }
-  if (ctx.arg.relocatable && ctx.arg.emachine == EM_LOONGARCH)
-    return {0, 0, 0x40, 0x03};
   return ctx.target->trapInstr;
 }
 

lld/test/COFF/alternatename-lto.ll

@@ -1,25 +0,0 @@
-; REQUIRES: x86
-; RUN: mkdir -p %t.dir
-; RUN: llvm-as -o %t.obj %s
-; RUN: lld-link -out:%t.dll -dll -noentry %t.obj -export:test
-
-target datalayout = "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
-target triple = "x86_64-unknown-windows-msvc19.33.0"
-
-$alt = comdat any
-
-@alt = weak_odr dso_local global i32 0, comdat, align 4
-@ext = external dso_local global i32, align 4
-
-; Function Attrs: noinline nounwind optnone uwtable
-define dso_local i32 @test() #0 {
-entry:
-  %0 = load i32, ptr @ext, align 4
-  ret i32 %0
-}
-
-attributes #0 = { noinline nounwind optnone uwtable }
-
-!llvm.linker.options = !{!0}
-
-!0 = !{!"/alternatename:ext=alt"}

lld/test/ELF/loongarch-relocatable-align.s

@@ -1,147 +0,0 @@
-# REQUIRES: loongarch
-
-## Test LA64.
-# RUN: rm -rf %t && split-file %s %t && cd %t
-# RUN: llvm-mc -filetype=obj -triple=loongarch64 -mattr=+relax a.s -o a.o
-# RUN: llvm-mc -filetype=obj -triple=loongarch64 -mattr=+relax --defsym ELF64=1 b.s -o b.o
-# RUN: llvm-mc -filetype=obj -triple=loongarch64 -mattr=+relax b1.s -o b1.o
-# RUN: llvm-mc -filetype=obj -triple=loongarch64 -mattr=+relax c.s -o c.o
-# RUN: llvm-mc -filetype=obj -triple=loongarch64 d.s -o d.o
-
-## No RELAX. Don't synthesize ALIGN.
-# RUN: ld.lld -r b.o d.o -o bd.ro
-# RUN: llvm-readelf -r bd.ro | FileCheck %s --check-prefix=NOREL
-
-# NOREL: no relocations
-
-# RUN: ld.lld -r b.o b.o a.o b.o b1.o c.o d.o -o out.ro
-# RUN: llvm-objdump -dr --no-show-raw-insn out.ro | FileCheck %s
-# RUN: llvm-readelf -r out.ro | FileCheck %s --check-prefix=CHECK-REL
-
-# CHECK:      <b0>:
-# CHECK-NEXT:   0:    addi.d $a0, $a1, 1
-# CHECK-NEXT:   4:    nop
-# CHECK-EMPTY:
-# CHECK-NEXT: <b0>:
-# CHECK-NEXT:   8:    addi.d $a0, $a1, 1
-# CHECK-EMPTY:
-# CHECK-NEXT: <_start>:
-# CHECK-NEXT:   c:    pcalau12i $a0, 0
-# CHECK-NEXT:           000000000000000c:  R_LARCH_PCALA_HI20   .Ltext1_start
-# CHECK-NEXT:           000000000000000c:  R_LARCH_RELAX        *ABS*
-# CHECK-NEXT:   10:   addi.d $a0, $a0, 0
-# CHECK-NEXT:           0000000000000010:  R_LARCH_PCALA_LO12   .Ltext1_start
-# CHECK-NEXT:           0000000000000010:  R_LARCH_RELAX        *ABS*
-# CHECK-NEXT:   14:   nop
-# CHECK-NEXT:           0000000000000014:  R_LARCH_ALIGN        *ABS*+0x4
-# CHECK-EMPTY:
-# CHECK-NEXT: <b0>:
-# CHECK-NEXT:   18:   addi.d $a0, $a1, 1
-# CHECK-NEXT:   1c:   nop
-# CHECK-NEXT:   20:   nop
-# CHECK-NEXT:           0000000000000020:  R_LARCH_ALIGN        *ABS*+0x4
-# CHECK-NEXT:   24:   nop
-# CHECK-EMPTY:
-# CHECK-NEXT: <b1>:
-# CHECK-NEXT:   28:   addi.d $a0, $a1, 3
-# CHECK-EMPTY:
-# CHECK-NEXT: <c0>:
-# CHECK-NEXT:   2c:   addi.d $a0, $a1, 4
-# CHECK-NEXT:   30:   nop
-# CHECK-NEXT:           0000000000000030:  R_LARCH_ALIGN        *ABS*+0x4
-# CHECK-EMPTY:
-# CHECK-NEXT: <d0>:
-# CHECK-NEXT:   34:   addi.d $a0, $a1, 5
-
-# CHECK-REL:  Relocation section '.rela.text' at offset {{.*}} contains 7 entries:
-# CHECK-REL:  Relocation section '.rela.text1' at offset {{.*}} contains 5 entries:
-
-## Test LA32.
-# RUN: llvm-mc -filetype=obj -triple=loongarch32 -mattr=+relax a.s -o a.32.o
-# RUN: llvm-mc -filetype=obj -triple=loongarch32 -mattr=+relax b.s -o b.32.o
-# RUN: ld.lld -r a.32.o b.32.o -o out.32.ro
-# RUN: ld.lld -Ttext=0x10000 out.32.ro -o out32
-# RUN: llvm-objdump -dr --no-show-raw-insn out32 | FileCheck %s --check-prefix=CHECK32
-
-# CHECK32:      <_start>:
-# CHECK32-NEXT:   10000:    pcaddi $a0, 4
-# CHECK32-NEXT:   10004:    nop
-# CHECK32-EMPTY:
-# CHECK32-NEXT: <b0>:
-# CHECK32-NEXT:   10008:    addi.w $a0, $a1, 1
-# CHECK32:      <.Ltext1_start>:
-# CHECK32-NEXT:   10010:    pcaddi $a1, 0
-# CHECK32-NEXT:   10014:    nop
-# CHECK32-NEXT:   10018:    addi.w $a0, $a1, 2
-
-## Test CREL.
-# RUN: llvm-mc -filetype=obj -triple=loongarch64 -mattr=+relax --crel a.s -o acrel.o
-# RUN: ld.lld -r acrel.o b.o -o out.crel.ro
-# RUN: llvm-objdump -dr --no-show-raw-insn out.crel.ro | FileCheck %s --check-prefix=CHECKC
-
-# CHECKC:      <_start>:
-# CHECKC-NEXT:   0:    pcalau12i $a0, 0
-# CHECKC-NEXT:           0000000000000000:  R_LARCH_PCALA_HI20   .Ltext1_start
-# CHECKC-NEXT:           0000000000000000:  R_LARCH_RELAX        *ABS*
-# CHECKC-NEXT:   4:    addi.d $a0, $a0, 0
-# CHECKC-NEXT:           0000000000000004:  R_LARCH_PCALA_LO12   .Ltext1_start
-# CHECKC-NEXT:           0000000000000004:  R_LARCH_RELAX        *ABS*
-# CHECKC-NEXT:   8:    nop
-# CHECKC-NEXT:           0000000000000008:  R_LARCH_ALIGN        *ABS*+0x4
-# CHECKC-EMPTY:
-# CHECKC-NEXT: <b0>:
-# CHECKC-NEXT:   c:    addi.d $a0, $a1, 1
-
-#--- a.s
-.globl _start
-_start:
-  la.pcrel $a0, .Ltext1_start
-
-.section .text1,"ax"
-.Ltext1_start:
-  la.pcrel $a1, .Ltext1_start
-
-#--- b.s
-.macro addi dst, src1, src2
-.ifdef ELF64
-  addi.d \dst, \src1, \src2
-.else
-  addi.w \dst, \src1, \src2
-.endif
-.endm
-
-## Needs synthesized ALIGN.
-.option push
-.option norelax
-.balign 8
-b0:
-  addi $a0, $a1, 1
-
-.section .text1,"ax"
-.balign 8
-  addi $a0, $a1, 2
-
-.option pop
-
-#--- b1.s
-# Starts with an ALIGN relocation, don't need synthesized ALIGN.
-.option push
-.option norelax
-  .reloc ., R_LARCH_ALIGN, 4
-  nop
-.balign 8
-b1:
-  addi.d $a0, $a1, 3
-.option pop
-
-#--- c.s
-## Alignment == 4, don't need synthesized ALIGN.
-.balign 4
-c0:
-  addi.d $a0, $a1, 4
-
-#--- d.s
-## Needs synthesized ALIGN.
-.balign 8
-d0:
-  addi.d $a0, $a1, 5

lldb/examples/python/crashlog.py

@@ -1540,19 +1540,13 @@ def load_crashlog_in_scripted_process(debugger, crashlog_path, options, result):
             }
         )
     )
-
-    crashlog_sd = lldb.SBStructuredData()
-    crashlog_sd.SetGenericValue(
-        lldb.SBScriptObject(crashlog, lldb.eScriptLanguagePython)
-    )
-    structured_data.SetValueForKey("crashlog", crashlog_sd)
-
     launch_info = lldb.SBLaunchInfo(None)
     launch_info.SetProcessPluginName("ScriptedProcess")
     launch_info.SetScriptedProcessClassName(
         "crashlog_scripted_process.CrashLogScriptedProcess"
     )
     launch_info.SetScriptedProcessDictionary(structured_data)
+    launch_info.SetLaunchFlags(lldb.eLaunchFlagStopAtEntry)
 
     error = lldb.SBError()
     process = target.Launch(launch_info, error)
@@ -1560,6 +1554,9 @@ def load_crashlog_in_scripted_process(debugger, crashlog_path, options, result):
     if not process or error.Fail():
         raise InteractiveCrashLogException("couldn't launch Scripted Process", error)
 
+    process.GetScriptedImplementation().set_crashlog(crashlog)
+    process.Continue()
+
     if not options.skip_status:
 
         @contextlib.contextmanager

lldb/examples/python/crashlog_scripted_process.py

@@ -10,7 +10,8 @@ from lldb.macosx.crashlog import CrashLog, CrashLogParser
 
 
 class CrashLogScriptedProcess(ScriptedProcess):
-    def parse_crashlog(self):
+    def set_crashlog(self, crashlog):
+        self.crashlog = crashlog
         if self.crashlog.process_id:
             if type(self.crashlog.process_id) is int:
                 self.pid = self.crashlog.process_id
@@ -28,6 +29,8 @@ class CrashLogScriptedProcess(ScriptedProcess):
         if hasattr(self.crashlog, "asb"):
             self.extended_thread_info = self.crashlog.asb
 
+        crashlog.load_images(self.options, self.loaded_images)
+
         for thread in self.crashlog.threads:
             if (
                 hasattr(thread, "app_specific_backtrace")
@@ -89,21 +92,10 @@ class CrashLogScriptedProcess(ScriptedProcess):
                     no_parallel_image_loading.GetBooleanValue()
                 )
 
-        self.crashlog = None
-        crashlog = args.GetValueForKey("crashlog")
-        if crashlog and crashlog.IsValid():
-            if crashlog.GetType() == lldb.eStructuredDataTypeGeneric:
-                self.crashlog = crashlog.GetGenericValue()
-
-        if not self.crashlog:
-            # Return error
-            return
-
         self.pid = super().get_process_id()
         self.crashed_thread_idx = 0
         self.exception = None
         self.extended_thread_info = None
-        self.parse_crashlog()
 
     def read_memory_at_address(
         self, addr: int, size: int, error: lldb.SBError
@@ -112,8 +104,8 @@ class CrashLogScriptedProcess(ScriptedProcess):
         return lldb.SBData()
 
     def get_loaded_images(self):
-        if len(self.loaded_images) == 0:
-            self.crashlog.load_images(self.options, self.loaded_images)
+        # TODO: Iterate over corefile_target modules and build a data structure
+        # from it.
         return self.loaded_images
 
     def should_stop(self) -> bool:

lldb/include/lldb/API/SBSymbol.h

@@ -85,6 +85,12 @@ public:
 
   SymbolType GetType();
 
+  /// Get the ID of this symbol, usually the original symbol table index.
+  ///
+  /// \returns
+  ///   Returns the ID of this symbol.
+  uint32_t GetID();
+
   bool operator==(const lldb::SBSymbol &rhs) const;
 
   bool operator!=(const lldb::SBSymbol &rhs) const;
@@ -99,6 +105,15 @@ public:
   // other than the actual symbol table itself in the object file.
   bool IsSynthetic();
 
+  /// Returns true if the symbol is a debug symbol.
+  bool IsDebug();
+
+  /// Get the string representation of a symbol type.
+  static const char *GetTypeAsString(lldb::SymbolType symbol_type);
+
+  /// Get the symbol type from a string representation.
+  static lldb::SymbolType GetTypeFromString(const char *str);
+
 protected:
   lldb_private::Symbol *get();
 

lldb/include/lldb/API/SBTarget.h

@@ -324,6 +324,16 @@ public:
 
   lldb::SBModule FindModule(const lldb::SBFileSpec &file_spec);
 
+  /// Find a module with the given module specification.
+  ///
+  /// \param[in] module_spec
+  ///     A lldb::SBModuleSpec object that contains module specification.
+  ///
+  /// \return
+  ///     A lldb::SBModule object that represents the found module, or an
+  ///     invalid SBModule object if no module was found.
+  lldb::SBModule FindModule(const lldb::SBModuleSpec &module_spec);
+
   /// Find compile units related to *this target and passed source
   /// file.
   ///

lldb/include/lldb/Symbol/Symbol.h

@@ -15,6 +15,7 @@
 #include "lldb/Symbol/SymbolContextScope.h"
 #include "lldb/Utility/Stream.h"
 #include "lldb/Utility/UserID.h"
+#include "lldb/lldb-enumerations.h"
 #include "lldb/lldb-private.h"
 #include "llvm/Support/JSON.h"
 
@@ -301,6 +302,10 @@ public:
 
   bool operator==(const Symbol &rhs) const;
 
+  static const char *GetTypeAsString(lldb::SymbolType symbol_type);
+
+  static lldb::SymbolType GetTypeFromString(const char *str);
+
 protected:
   // This is the internal guts of ResolveReExportedSymbol, it assumes
   // reexport_name is not null, and that module_spec is valid.  We track the

lldb/packages/Python/lldbsuite/test/tools/lldb-dap/dap_server.py

@@ -1299,6 +1299,25 @@ class DebugCommunication(object):
             {"command": "modules", "type": "request", "arguments": args_dict}
         )
 
+    def request_moduleSymbols(
+        self,
+        moduleId: str = "",
+        moduleName: str = "",
+        startIndex: int = 0,
+        count: int = 0,
+    ):
+        command_dict = {
+            "command": "__lldb_moduleSymbols",
+            "type": "request",
+            "arguments": {
+                "moduleId": moduleId,
+                "moduleName": moduleName,
+                "startIndex": startIndex,
+                "count": count,
+            },
+        }
+        return self._send_recv(command_dict)
+
     def request_stackTrace(
         self, threadId=None, startFrame=None, levels=None, format=None, dump=False
     ):

lldb/source/API/SBSymbol.cpp

@@ -193,6 +193,14 @@ SymbolType SBSymbol::GetType() {
   return eSymbolTypeInvalid;
 }
 
+uint32_t SBSymbol::GetID() {
+  LLDB_INSTRUMENT_VA(this);
+
+  if (m_opaque_ptr)
+    return m_opaque_ptr->GetID();
+  return 0;
+}
+
 bool SBSymbol::IsExternal() {
   LLDB_INSTRUMENT_VA(this);
 
@@ -208,3 +216,23 @@ bool SBSymbol::IsSynthetic() {
     return m_opaque_ptr->IsSynthetic();
   return false;
 }
+
+bool SBSymbol::IsDebug() {
+  LLDB_INSTRUMENT_VA(this);
+
+  if (m_opaque_ptr)
+    return m_opaque_ptr->IsDebug();
+  return false;
+}
+
+const char *SBSymbol::GetTypeAsString(lldb::SymbolType symbol_type) {
+  LLDB_INSTRUMENT_VA(symbol_type);
+
+  return Symbol::GetTypeAsString(symbol_type);
+}
+
+lldb::SymbolType SBSymbol::GetTypeFromString(const char *str) {
+  LLDB_INSTRUMENT_VA(str);
+
+  return Symbol::GetTypeFromString(str);
+}

lldb/source/API/SBTarget.cpp

@@ -1570,6 +1570,18 @@ SBModule SBTarget::FindModule(const SBFileSpec &sb_file_spec) {
   return sb_module;
 }
 
+SBModule SBTarget::FindModule(const SBModuleSpec &sb_module_spec) {
+  LLDB_INSTRUMENT_VA(this, sb_module_spec);
+
+  SBModule sb_module;
+  if (TargetSP target_sp = GetSP(); target_sp && sb_module_spec.IsValid()) {
+    // The module list is thread safe, no need to lock.
+    sb_module.SetSP(
+        target_sp->GetImages().FindFirstModule(*sb_module_spec.m_opaque_up));
+  }
+  return sb_module;
+}
+
 SBSymbolContextList SBTarget::FindCompileUnits(const SBFileSpec &sb_file_spec) {
   LLDB_INSTRUMENT_VA(this, sb_file_spec);
 

lldb/source/Core/Value.cpp

@@ -347,9 +347,6 @@ Status Value::GetValueAsData(ExecutionContext *exe_ctx, DataExtractor &data,
     else
       data.SetAddressByteSize(sizeof(void *));
 
-    if (!type_size)
-      return Status::FromErrorString("type does not have a size");
-
     uint32_t result_byte_size = *type_size;
     if (m_value.GetData(data, result_byte_size))
       return error; // Success;

lldb/source/Symbol/Symbol.cpp

@@ -392,45 +392,8 @@ bool Symbol::Compare(ConstString name, SymbolType type) const {
   return false;
 }
 
-#define ENUM_TO_CSTRING(x)                                                     \
-  case eSymbolType##x:                                                         \
-    return #x;
-
 const char *Symbol::GetTypeAsString() const {
-  switch (m_type) {
-    ENUM_TO_CSTRING(Invalid);
-    ENUM_TO_CSTRING(Absolute);
-    ENUM_TO_CSTRING(Code);
-    ENUM_TO_CSTRING(Resolver);
-    ENUM_TO_CSTRING(Data);
-    ENUM_TO_CSTRING(Trampoline);
-    ENUM_TO_CSTRING(Runtime);
-    ENUM_TO_CSTRING(Exception);
-    ENUM_TO_CSTRING(SourceFile);
-    ENUM_TO_CSTRING(HeaderFile);
-    ENUM_TO_CSTRING(ObjectFile);
-    ENUM_TO_CSTRING(CommonBlock);
-    ENUM_TO_CSTRING(Block);
-    ENUM_TO_CSTRING(Local);
-    ENUM_TO_CSTRING(Param);
-    ENUM_TO_CSTRING(Variable);
-    ENUM_TO_CSTRING(VariableType);
-    ENUM_TO_CSTRING(LineEntry);
-    ENUM_TO_CSTRING(LineHeader);
-    ENUM_TO_CSTRING(ScopeBegin);
-    ENUM_TO_CSTRING(ScopeEnd);
-    ENUM_TO_CSTRING(Additional);
-    ENUM_TO_CSTRING(Compiler);
-    ENUM_TO_CSTRING(Instrumentation);
-    ENUM_TO_CSTRING(Undefined);
-    ENUM_TO_CSTRING(ObjCClass);
-    ENUM_TO_CSTRING(ObjCMetaClass);
-    ENUM_TO_CSTRING(ObjCIVar);
-    ENUM_TO_CSTRING(ReExported);
-  default:
-    break;
-  }
-  return "<unknown SymbolType>";
+  return GetTypeAsString(static_cast<lldb::SymbolType>(m_type));
 }
 
 void Symbol::CalculateSymbolContext(SymbolContext *sc) {
@@ -774,6 +737,79 @@ bool Symbol::operator==(const Symbol &rhs) const {
   return true;
 }
 
+#define ENUM_TO_CSTRING(x)                                                     \
+  case eSymbolType##x:                                                         \
+    return #x;
+
+const char *Symbol::GetTypeAsString(lldb::SymbolType symbol_type) {
+  switch (symbol_type) {
+    ENUM_TO_CSTRING(Invalid);
+    ENUM_TO_CSTRING(Absolute);
+    ENUM_TO_CSTRING(Code);
+    ENUM_TO_CSTRING(Resolver);
+    ENUM_TO_CSTRING(Data);
+    ENUM_TO_CSTRING(Trampoline);
+    ENUM_TO_CSTRING(Runtime);
+    ENUM_TO_CSTRING(Exception);
+    ENUM_TO_CSTRING(SourceFile);
+    ENUM_TO_CSTRING(HeaderFile);
+    ENUM_TO_CSTRING(ObjectFile);
+    ENUM_TO_CSTRING(CommonBlock);
+    ENUM_TO_CSTRING(Block);
+    ENUM_TO_CSTRING(Local);
+    ENUM_TO_CSTRING(Param);
+    ENUM_TO_CSTRING(Variable);
+    ENUM_TO_CSTRING(VariableType);
+    ENUM_TO_CSTRING(LineEntry);
+    ENUM_TO_CSTRING(LineHeader);
+    ENUM_TO_CSTRING(ScopeBegin);
+    ENUM_TO_CSTRING(ScopeEnd);
+    ENUM_TO_CSTRING(Additional);
+    ENUM_TO_CSTRING(Compiler);
+    ENUM_TO_CSTRING(Instrumentation);
+    ENUM_TO_CSTRING(Undefined);
+    ENUM_TO_CSTRING(ObjCClass);
+    ENUM_TO_CSTRING(ObjCMetaClass);
+    ENUM_TO_CSTRING(ObjCIVar);
+    ENUM_TO_CSTRING(ReExported);
+  }
+  return "<unknown SymbolType>";
+}
+
+lldb::SymbolType Symbol::GetTypeFromString(const char *str) {
+  std::string str_lower = llvm::StringRef(str).lower();
+  return llvm::StringSwitch<lldb::SymbolType>(str_lower)
+      .Case("absolute", eSymbolTypeAbsolute)
+      .Case("code", eSymbolTypeCode)
+      .Case("resolver", eSymbolTypeResolver)
+      .Case("data", eSymbolTypeData)
+      .Case("trampoline", eSymbolTypeTrampoline)
+      .Case("runtime", eSymbolTypeRuntime)
+      .Case("exception", eSymbolTypeException)
+      .Case("sourcefile", eSymbolTypeSourceFile)
+      .Case("headerfile", eSymbolTypeHeaderFile)
+      .Case("objectfile", eSymbolTypeObjectFile)
+      .Case("commonblock", eSymbolTypeCommonBlock)
+      .Case("block", eSymbolTypeBlock)
+      .Case("local", eSymbolTypeLocal)
+      .Case("param", eSymbolTypeParam)
+      .Case("variable", eSymbolTypeVariable)
+      .Case("variableType", eSymbolTypeVariableType)
+      .Case("lineentry", eSymbolTypeLineEntry)
+      .Case("lineheader", eSymbolTypeLineHeader)
+      .Case("scopebegin", eSymbolTypeScopeBegin)
+      .Case("scopeend", eSymbolTypeScopeEnd)
+      .Case("additional,", eSymbolTypeAdditional)
+      .Case("compiler", eSymbolTypeCompiler)
+      .Case("instrumentation", eSymbolTypeInstrumentation)
+      .Case("undefined", eSymbolTypeUndefined)
+      .Case("objcclass", eSymbolTypeObjCClass)
+      .Case("objcmetaclass", eSymbolTypeObjCMetaClass)
+      .Case("objcivar", eSymbolTypeObjCIVar)
+      .Case("reexported", eSymbolTypeReExported)
+      .Default(eSymbolTypeInvalid);
+}
+
 namespace llvm {
 namespace json {
 
@@ -804,36 +840,8 @@ bool fromJSON(const llvm::json::Value &value, lldb_private::JSONSymbol &symbol,
 bool fromJSON(const llvm::json::Value &value, lldb::SymbolType &type,
               llvm::json::Path path) {
   if (auto str = value.getAsString()) {
-    type = llvm::StringSwitch<lldb::SymbolType>(*str)
-               .Case("absolute", eSymbolTypeAbsolute)
-               .Case("code", eSymbolTypeCode)
-               .Case("resolver", eSymbolTypeResolver)
-               .Case("data", eSymbolTypeData)
-               .Case("trampoline", eSymbolTypeTrampoline)
-               .Case("runtime", eSymbolTypeRuntime)
-               .Case("exception", eSymbolTypeException)
-               .Case("sourcefile", eSymbolTypeSourceFile)
-               .Case("headerfile", eSymbolTypeHeaderFile)
-               .Case("objectfile", eSymbolTypeObjectFile)
-               .Case("commonblock", eSymbolTypeCommonBlock)
-               .Case("block", eSymbolTypeBlock)
-               .Case("local", eSymbolTypeLocal)
-               .Case("param", eSymbolTypeParam)
-               .Case("variable", eSymbolTypeVariable)
-               .Case("variableType", eSymbolTypeVariableType)
-               .Case("lineentry", eSymbolTypeLineEntry)
-               .Case("lineheader", eSymbolTypeLineHeader)
-               .Case("scopebegin", eSymbolTypeScopeBegin)
-               .Case("scopeend", eSymbolTypeScopeEnd)
-               .Case("additional,", eSymbolTypeAdditional)
-               .Case("compiler", eSymbolTypeCompiler)
-               .Case("instrumentation", eSymbolTypeInstrumentation)
-               .Case("undefined", eSymbolTypeUndefined)
-               .Case("objcclass", eSymbolTypeObjCClass)
-               .Case("objcmetaClass", eSymbolTypeObjCMetaClass)
-               .Case("objcivar", eSymbolTypeObjCIVar)
-               .Case("reexporte", eSymbolTypeReExported)
-               .Default(eSymbolTypeInvalid);
+    llvm::StringRef str_ref = str.value_or("");
+    type = Symbol::GetTypeFromString(str_ref.data());
 
     if (type == eSymbolTypeInvalid) {
       path.report("invalid symbol type");

lldb/test/API/tools/lldb-dap/moduleSymbols/Makefile

@@ -0,0 +1,3 @@
+C_SOURCES := main.c
+
+include Makefile.rules

lldb/test/API/tools/lldb-dap/moduleSymbols/TestDAP_moduleSymbols.py

@@ -0,0 +1,37 @@
+"""
+Test lldb-dap moduleSymbols request
+"""
+
+import lldbdap_testcase
+
+
+class TestDAP_moduleSymbols(lldbdap_testcase.DAPTestCaseBase):
+    def test_moduleSymbols(self):
+        """
+        Test that the moduleSymbols request returns correct symbols from the module.
+        """
+        program = self.getBuildArtifact("a.out")
+        self.build_and_launch(program)
+
+        symbol_names = []
+        i = 0
+        while True:
+            next_symbol = self.dap_server.request_moduleSymbols(
+                moduleName="a.out", startIndex=i, count=1
+            )
+            self.assertIn("symbols", next_symbol["body"])
+            result_symbols = next_symbol["body"]["symbols"]
+            self.assertLessEqual(len(result_symbols), 1)
+            if len(result_symbols) == 0:
+                break
+
+            self.assertIn("name", result_symbols[0])
+            symbol_names.append(result_symbols[0]["name"])
+            i += 1
+            if i >= 1000:
+                break
+
+        self.assertGreater(len(symbol_names), 0)
+        self.assertIn("main", symbol_names)
+        self.assertIn("func1", symbol_names)
+        self.assertIn("func2", symbol_names)

lldb/test/API/tools/lldb-dap/moduleSymbols/main.c

@@ -0,0 +1,9 @@
+int func1() { return 42; }
+
+int func2() { return 84; }
+
+int main() {
+  func1();
+  func2();
+  return 0;
+}

lldb/tools/debugserver/source/debugserver.cpp

@@ -792,39 +792,6 @@ void show_usage_and_exit(int exit_code) {
                DEBUGSERVER_PROGRAM_NAME);
   RNBLogSTDERR("  %s /path/file --attach=<process_name>\n",
                DEBUGSERVER_PROGRAM_NAME);
-  RNBLogSTDERR("\n");
-  RNBLogSTDERR("  -a | --attach <pid>\n");
-  RNBLogSTDERR("  -w | --waitfor <name>\n");
-  RNBLogSTDERR("  -A | --arch <arch>\n");
-  RNBLogSTDERR("  -g | --debug\n");
-  RNBLogSTDERR("  -K | --kill-on-error\n");
-  RNBLogSTDERR("  -v | --verbose\n");
-  RNBLogSTDERR("  -V | --version\n");
-  RNBLogSTDERR("  -k | --lockdown\n");
-  RNBLogSTDERR("  -t | --applist\n");
-  RNBLogSTDERR("  -l | --log-file\n");
-  RNBLogSTDERR("  -f | --log-flags\n");
-  RNBLogSTDERR("  -x | --launch <auto|posix-spawn|fork-exec|springboard>\n");
-  RNBLogSTDERR("  -d | --waitfor-duration <seconds>\n");
-  RNBLogSTDERR("  -i | --waitfor-interval <usecs>\n");
-  RNBLogSTDERR("  -r | --native-regs\n");
-  RNBLogSTDERR("  -s | --studio-path <path>\n");
-  RNBLogSTDERR("  -I | --stdin-path <path>\n");
-  RNBLogSTDERR("  -O | --stdout-path <path>\n");
-  RNBLogSTDERR("  -E | --stderr-path <path>\n");
-  RNBLogSTDERR("  -n | --no-stdio\n");
-  RNBLogSTDERR("  -S | --setsid\n");
-  RNBLogSTDERR("  -D | --disable-aslr\n");
-  RNBLogSTDERR("  -W | --working-dir <dir>\n");
-  RNBLogSTDERR("  -p | --platform <arg?>\n");
-  RNBLogSTDERR("  -u | --unix-socket <unix socket name>\n");
-  RNBLogSTDERR("  -2 | --fd <file descriptor number>\n");
-  RNBLogSTDERR("  -P | --named-pipe <pipe>\n");
-  RNBLogSTDERR("  -R | --reverse-connect\n");
-  RNBLogSTDERR("  -e | --env <env>\n");
-  RNBLogSTDERR("  -F | --forward-env <env>\n");
-  RNBLogSTDERR("  -U | --unmask-signals\n");
-
   exit(exit_code);
 }
 

lldb/tools/lldb-dap/CMakeLists.txt

@@ -45,6 +45,7 @@ add_lldb_library(lldbDAP
   Handler/LaunchRequestHandler.cpp
   Handler/LocationsRequestHandler.cpp
   Handler/ModulesRequestHandler.cpp
+  Handler/ModuleSymbolsRequestHandler.cpp
   Handler/NextRequestHandler.cpp
   Handler/PauseRequestHandler.cpp
   Handler/ReadMemoryRequestHandler.cpp

lldb/tools/lldb-dap/DAP.cpp

@@ -1258,6 +1258,27 @@ protocol::Capabilities DAP::GetCapabilities() {
   return capabilities;
 }
 
+protocol::Capabilities DAP::GetCustomCapabilities() {
+  protocol::Capabilities capabilities;
+
+  // Add all custom capabilities here.
+  const llvm::DenseSet<AdapterFeature> all_custom_features = {
+      protocol::eAdapterFeatureSupportsModuleSymbolsRequest,
+  };
+
+  for (auto &kv : request_handlers) {
+    llvm::SmallDenseSet<AdapterFeature, 1> features =
+        kv.second->GetSupportedFeatures();
+
+    for (auto &feature : features) {
+      if (all_custom_features.contains(feature))
+        capabilities.supportedFeatures.insert(feature);
+    }
+  }
+
+  return capabilities;
+}
+
 void DAP::StartEventThread() {
   event_thread = std::thread(&DAP::EventThread, this);
 }
@@ -1614,6 +1635,7 @@ void DAP::RegisterRequests() {
   // Custom requests
   RegisterRequest<CompileUnitsRequestHandler>();
   RegisterRequest<ModulesRequestHandler>();
+  RegisterRequest<ModuleSymbolsRequestHandler>();
 
   // Testing requests
   RegisterRequest<TestGetTargetBreakpointsRequestHandler>();

lldb/tools/lldb-dap/DAP.h

@@ -367,6 +367,9 @@ struct DAP final : private DAPTransport::MessageHandler {
   /// The set of capabilities supported by this adapter.
   protocol::Capabilities GetCapabilities();
 
+  /// The set of custom capabilities supported by this adapter.
+  protocol::Capabilities GetCustomCapabilities();
+
   /// Debuggee will continue from stopped state.
   void WillContinue() { variables.Clear(); }
 

lldb/tools/lldb-dap/EventHelper.cpp

@@ -38,25 +38,37 @@ static void SendThreadExitedEvent(DAP &dap, lldb::tid_t tid) {
   dap.SendJSON(llvm::json::Value(std::move(event)));
 }
 
-void SendTargetBasedCapabilities(DAP &dap) {
+/// Get capabilities based on the configured target.
+static llvm::DenseSet<AdapterFeature> GetTargetBasedCapabilities(DAP &dap) {
+  llvm::DenseSet<AdapterFeature> capabilities;
   if (!dap.target.IsValid())
-    return;
-
-  protocol::CapabilitiesEventBody body;
+    return capabilities;
 
   const llvm::StringRef target_triple = dap.target.GetTriple();
   if (target_triple.starts_with("x86"))
-    body.capabilities.supportedFeatures.insert(
-        protocol::eAdapterFeatureStepInTargetsRequest);
+    capabilities.insert(protocol::eAdapterFeatureStepInTargetsRequest);
 
   // We only support restarting launch requests not attach requests.
   if (dap.last_launch_request)
-    body.capabilities.supportedFeatures.insert(
-        protocol::eAdapterFeatureRestartRequest);
+    capabilities.insert(protocol::eAdapterFeatureRestartRequest);
+
+  return capabilities;
+}
+
+void SendExtraCapabilities(DAP &dap) {
+  protocol::Capabilities capabilities = dap.GetCustomCapabilities();
+  llvm::DenseSet<AdapterFeature> target_capabilities =
+      GetTargetBasedCapabilities(dap);
+
+  capabilities.supportedFeatures.insert(target_capabilities.begin(),
+                                        target_capabilities.end());
+
+  protocol::CapabilitiesEventBody body;
+  body.capabilities = std::move(capabilities);
 
   // Only notify the client if supportedFeatures changed.
   if (!body.capabilities.supportedFeatures.empty())
-    dap.Send(protocol::Event{"capabilities", body});
+    dap.Send(protocol::Event{"capabilities", std::move(body)});
 }
 
 // "ProcessEvent": {

lldb/tools/lldb-dap/EventHelper.h

@@ -17,8 +17,8 @@ struct DAP;
 
 enum LaunchMethod { Launch, Attach, AttachForSuspendedLaunch };
 
-/// Update capabilities based on the configured target.
-void SendTargetBasedCapabilities(DAP &dap);
+/// Sends target based capabilities and lldb-dap custom capabilities.
+void SendExtraCapabilities(DAP &dap);
 
 void SendProcessEvent(DAP &dap, LaunchMethod launch_method);
 

lldb/tools/lldb-dap/Handler/ConfigurationDoneRequestHandler.cpp

@@ -9,6 +9,7 @@
 #include "DAP.h"
 #include "EventHelper.h"
 #include "LLDBUtils.h"
+#include "Protocol/ProtocolEvents.h"
 #include "Protocol/ProtocolRequests.h"
 #include "ProtocolUtils.h"
 #include "RequestHandler.h"
@@ -44,7 +45,10 @@ ConfigurationDoneRequestHandler::Run(const ConfigurationDoneArguments &) const {
   // Waiting until 'configurationDone' to send target based capabilities in case
   // the launch or attach scripts adjust the target. The initial dummy target
   // may have different capabilities than the final target.
-  SendTargetBasedCapabilities(dap);
+
+  /// Also send here custom capabilities to the client, which is consumed by the
+  /// lldb-dap specific editor extension.
+  SendExtraCapabilities(dap);
 
   // Clients can request a baseline of currently existing threads after
   // we acknowledge the configurationDone request.

lldb/tools/lldb-dap/Handler/ModuleSymbolsRequestHandler.cpp

@@ -0,0 +1,89 @@
+//===----------------------------------------------------------------------===//
+//
+// 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 "DAP.h"
+#include "DAPError.h"
+#include "Protocol/DAPTypes.h"
+#include "RequestHandler.h"
+#include "lldb/API/SBAddress.h"
+#include "lldb/API/SBFileSpec.h"
+#include "lldb/API/SBModule.h"
+#include "lldb/API/SBModuleSpec.h"
+#include "lldb/Utility/UUID.h"
+#include "llvm/Support/Error.h"
+#include <cstddef>
+
+using namespace lldb_dap::protocol;
+namespace lldb_dap {
+
+llvm::Expected<ModuleSymbolsResponseBody>
+ModuleSymbolsRequestHandler::Run(const ModuleSymbolsArguments &args) const {
+  ModuleSymbolsResponseBody response;
+
+  lldb::SBModuleSpec module_spec;
+  if (!args.moduleId.empty()) {
+    llvm::SmallVector<uint8_t, 20> uuid_bytes;
+    if (!lldb_private::UUID::DecodeUUIDBytesFromString(args.moduleId,
+                                                       uuid_bytes)
+             .empty())
+      return llvm::make_error<DAPError>("invalid module ID");
+
+    module_spec.SetUUIDBytes(uuid_bytes.data(), uuid_bytes.size());
+  }
+
+  if (!args.moduleName.empty()) {
+    lldb::SBFileSpec file_spec;
+    file_spec.SetFilename(args.moduleName.c_str());
+    module_spec.SetFileSpec(file_spec);
+  }
+
+  // Empty request, return empty response.
+  if (!module_spec.IsValid())
+    return response;
+
+  std::vector<Symbol> &symbols = response.symbols;
+  lldb::SBModule module = dap.target.FindModule(module_spec);
+  if (!module.IsValid())
+    return llvm::make_error<DAPError>("module not found");
+
+  const size_t num_symbols = module.GetNumSymbols();
+  const size_t start_index = args.startIndex.value_or(0);
+  const size_t end_index =
+      std::min(start_index + args.count.value_or(num_symbols), num_symbols);
+  for (size_t i = start_index; i < end_index; ++i) {
+    lldb::SBSymbol symbol = module.GetSymbolAtIndex(i);
+    if (!symbol.IsValid())
+      continue;
+
+    Symbol dap_symbol;
+    dap_symbol.id = symbol.GetID();
+    dap_symbol.type = symbol.GetType();
+    dap_symbol.isDebug = symbol.IsDebug();
+    dap_symbol.isSynthetic = symbol.IsSynthetic();
+    dap_symbol.isExternal = symbol.IsExternal();
+
+    lldb::SBAddress start_address = symbol.GetStartAddress();
+    if (start_address.IsValid()) {
+      lldb::addr_t file_address = start_address.GetFileAddress();
+      if (file_address != LLDB_INVALID_ADDRESS)
+        dap_symbol.fileAddress = file_address;
+
+      lldb::addr_t load_address = start_address.GetLoadAddress(dap.target);
+      if (load_address != LLDB_INVALID_ADDRESS)
+        dap_symbol.loadAddress = load_address;
+    }
+
+    dap_symbol.size = symbol.GetSize();
+    dap_symbol.name = symbol.GetName();
+    symbols.push_back(std::move(dap_symbol));
+  }
+
+  return response;
+}
+
+} // namespace lldb_dap

lldb/tools/lldb-dap/Handler/RequestHandler.h

@@ -594,6 +594,20 @@ public:
   llvm::Error Run(const protocol::CancelArguments &args) const override;
 };
 
+class ModuleSymbolsRequestHandler
+    : public RequestHandler<
+          protocol::ModuleSymbolsArguments,
+          llvm::Expected<protocol::ModuleSymbolsResponseBody>> {
+public:
+  using RequestHandler::RequestHandler;
+  static llvm::StringLiteral GetCommand() { return "__lldb_moduleSymbols"; }
+  FeatureSet GetSupportedFeatures() const override {
+    return {protocol::eAdapterFeatureSupportsModuleSymbolsRequest};
+  }
+  llvm::Expected<protocol::ModuleSymbolsResponseBody>
+  Run(const protocol::ModuleSymbolsArguments &args) const override;
+};
+
 /// A request used in testing to get the details on all breakpoints that are
 /// currently set in the target. This helps us to test "setBreakpoints" and
 /// "setFunctionBreakpoints" requests to verify we have the correct set of

lldb/tools/lldb-dap/Protocol/DAPTypes.cpp

@@ -1,4 +1,6 @@
 #include "Protocol/DAPTypes.h"
+#include "lldb/API/SBSymbol.h"
+#include "lldb/lldb-enumerations.h"
 
 using namespace llvm;
 
@@ -33,4 +35,35 @@ llvm::json::Value toJSON(const SourceLLDBData &SLD) {
   return result;
 }
 
-} // namespace lldb_dap::protocol
+bool fromJSON(const llvm::json::Value &Params, Symbol &DS, llvm::json::Path P) {
+  json::ObjectMapper O(Params, P);
+  std::string type_str;
+  if (!(O && O.map("id", DS.id) && O.map("isDebug", DS.isDebug) &&
+        O.map("isSynthetic", DS.isSynthetic) &&
+        O.map("isExternal", DS.isExternal) && O.map("type", type_str) &&
+        O.map("fileAddress", DS.fileAddress) &&
+        O.mapOptional("loadAddress", DS.loadAddress) &&
+        O.map("size", DS.size) && O.map("name", DS.name)))
+    return false;
+
+  DS.type = lldb::SBSymbol::GetTypeFromString(type_str.c_str());
+  return true;
+}
+
+llvm::json::Value toJSON(const Symbol &DS) {
+  json::Object result{
+      {"id", DS.id},
+      {"isDebug", DS.isDebug},
+      {"isSynthetic", DS.isSynthetic},
+      {"isExternal", DS.isExternal},
+      {"type", lldb::SBSymbol::GetTypeAsString(DS.type)},
+      {"fileAddress", DS.fileAddress},
+      {"loadAddress", DS.loadAddress},
+      {"size", DS.size},
+      {"name", DS.name},
+  };
+
+  return result;
+}
+
+} // namespace lldb_dap::protocol

lldb/tools/lldb-dap/Protocol/DAPTypes.h

@@ -48,6 +48,38 @@ struct SourceLLDBData {
 bool fromJSON(const llvm::json::Value &, SourceLLDBData &, llvm::json::Path);
 llvm::json::Value toJSON(const SourceLLDBData &);
 
+struct Symbol {
+  /// The symbol id, usually the original symbol table index.
+  uint32_t id;
+
+  /// True if this symbol is debug information in a symbol.
+  bool isDebug;
+
+  /// True if this symbol is not actually in the symbol table, but synthesized
+  /// from other info in the object file.
+  bool isSynthetic;
+
+  /// True if this symbol is globally visible.
+  bool isExternal;
+
+  /// The symbol type.
+  lldb::SymbolType type;
+
+  /// The symbol file address.
+  lldb::addr_t fileAddress;
+
+  /// The symbol load address.
+  std::optional<lldb::addr_t> loadAddress;
+
+  /// The symbol size.
+  lldb::addr_t size;
+
+  /// The symbol name.
+  std::string name;
+};
+bool fromJSON(const llvm::json::Value &, Symbol &, llvm::json::Path);
+llvm::json::Value toJSON(const Symbol &);
+
 } // namespace lldb_dap::protocol
 
 #endif

lldb/tools/lldb-dap/Protocol/ProtocolRequests.cpp

@@ -598,4 +598,19 @@ json::Value toJSON(const WriteMemoryResponseBody &WMR) {
   return result;
 }
 
+bool fromJSON(const llvm::json::Value &Params, ModuleSymbolsArguments &Args,
+              llvm::json::Path P) {
+  json::ObjectMapper O(Params, P);
+  return O && O.map("moduleId", Args.moduleId) &&
+         O.map("moduleName", Args.moduleName) &&
+         O.mapOptional("startIndex", Args.startIndex) &&
+         O.mapOptional("count", Args.count);
+}
+
+llvm::json::Value toJSON(const ModuleSymbolsResponseBody &DGMSR) {
+  json::Object result;
+  result.insert({"symbols", DGMSR.symbols});
+  return result;
+}
+
 } // namespace lldb_dap::protocol

lldb/tools/lldb-dap/Protocol/ProtocolRequests.h

@@ -981,6 +981,30 @@ struct WriteMemoryResponseBody {
 };
 llvm::json::Value toJSON(const WriteMemoryResponseBody &);
 
+struct ModuleSymbolsArguments {
+  /// The module UUID for which to retrieve symbols.
+  std::string moduleId;
+
+  /// The module path.
+  std::string moduleName;
+
+  /// The index of the first symbol to return; if omitted, start at the
+  /// beginning.
+  std::optional<uint32_t> startIndex;
+
+  /// The number of symbols to return; if omitted, all symbols are returned.
+  std::optional<uint32_t> count;
+};
+bool fromJSON(const llvm::json::Value &, ModuleSymbolsArguments &,
+              llvm::json::Path);
+
+/// Response to `getModuleSymbols` request.
+struct ModuleSymbolsResponseBody {
+  /// The symbols for the specified module.
+  std::vector<Symbol> symbols;
+};
+llvm::json::Value toJSON(const ModuleSymbolsResponseBody &);
+
 } // namespace lldb_dap::protocol
 
 #endif

lldb/tools/lldb-dap/Protocol/ProtocolTypes.cpp

@@ -335,6 +335,8 @@ static llvm::StringLiteral ToString(AdapterFeature feature) {
     return "supportsWriteMemoryRequest";
   case eAdapterFeatureTerminateDebuggee:
     return "supportTerminateDebuggee";
+  case eAdapterFeatureSupportsModuleSymbolsRequest:
+    return "supportsModuleSymbolsRequest";
   }
   llvm_unreachable("unhandled adapter feature.");
 }
@@ -406,6 +408,8 @@ bool fromJSON(const llvm::json::Value &Params, AdapterFeature &feature,
                 eAdapterFeatureValueFormattingOptions)
           .Case("supportsWriteMemoryRequest", eAdapterFeatureWriteMemoryRequest)
           .Case("supportTerminateDebuggee", eAdapterFeatureTerminateDebuggee)
+          .Case("supportsModuleSymbolsRequest",
+                eAdapterFeatureSupportsModuleSymbolsRequest)
           .Default(std::nullopt);
 
   if (!parsedFeature) {

lldb/tools/lldb-dap/Protocol/ProtocolTypes.h

@@ -242,8 +242,11 @@ enum AdapterFeature : unsigned {
   /// The debug adapter supports the `terminateDebuggee` attribute on the
   /// `disconnect` request.
   eAdapterFeatureTerminateDebuggee,
+  /// The debug adapter supports the `supportsModuleSymbols` request.
+  /// This request is a custom request of lldb-dap.
+  eAdapterFeatureSupportsModuleSymbolsRequest,
   eAdapterFeatureFirst = eAdapterFeatureANSIStyling,
-  eAdapterFeatureLast = eAdapterFeatureTerminateDebuggee,
+  eAdapterFeatureLast = eAdapterFeatureSupportsModuleSymbolsRequest,
 };
 bool fromJSON(const llvm::json::Value &, AdapterFeature &, llvm::json::Path);
 llvm::json::Value toJSON(const AdapterFeature &);

lldb/tools/lldb-dap/package-lock.json

@@ -1,20 +1,24 @@
 {
   "name": "lldb-dap",
-  "version": "0.2.15",
+  "version": "0.2.16",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "lldb-dap",
-      "version": "0.2.15",
+      "version": "0.2.16",
       "license": "Apache 2.0 License with LLVM exceptions",
       "devDependencies": {
         "@types/node": "^18.19.41",
+        "@types/tabulator-tables": "^6.2.10",
         "@types/vscode": "1.75.0",
+        "@types/vscode-webview": "^1.57.5",
         "@vscode/debugprotocol": "^1.68.0",
         "@vscode/vsce": "^3.2.2",
+        "esbuild": "^0.25.9",
         "prettier": "^3.4.2",
         "prettier-plugin-curly": "^0.3.1",
+        "tabulator-tables": "^6.3.1",
         "typescript": "^5.7.3"
       },
       "engines": {
@@ -318,6 +322,448 @@
         "node": ">=6.9.0"
       }
     },
+    "node_modules/@esbuild/aix-ppc64": {
+      "version": "0.25.9",
+      "resolved": "https://registry.npmjs.org/@esbuild/aix-ppc64/-/aix-ppc64-0.25.9.tgz",
+      "integrity": "sha512-OaGtL73Jck6pBKjNIe24BnFE6agGl+6KxDtTfHhy1HmhthfKouEcOhqpSL64K4/0WCtbKFLOdzD/44cJ4k9opA==",
+      "cpu": [
+        "ppc64"
+      ],
+      "dev": true,
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "aix"
+      ],
+      "engines": {
+        "node": ">=18"
+      }
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+      "cpu": [
+        "ia32"
+      ],
+      "dev": true,
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "win32"
+      ],
+      "engines": {
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+      "version": "0.25.9",
+      "resolved": "https://registry.npmjs.org/@esbuild/win32-x64/-/win32-x64-0.25.9.tgz",
+      "integrity": "sha512-PPOl1mi6lpLNQxnGoyAfschAodRFYXJ+9fs6WHXz7CSWKbOqiMZsubC+BQsVKuul+3vKLuwTHsS2c2y9EoKwxQ==",
+      "cpu": [
+        "x64"
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+      "optional": true,
+      "os": [
+        "win32"
+      ],
+      "engines": {
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+    },
     "node_modules/@isaacs/cliui": {
       "version": "8.0.2",
       "resolved": "https://registry.npmjs.org/@isaacs/cliui/-/cliui-8.0.2.tgz",
@@ -399,6 +845,13 @@
         "undici-types": "~5.26.4"
       }
     },
+    "node_modules/@types/tabulator-tables": {
+      "version": "6.2.10",
+      "resolved": "https://registry.npmjs.org/@types/tabulator-tables/-/tabulator-tables-6.2.10.tgz",
+      "integrity": "sha512-g6o0gG3lu/ozmxPw9rLY1p57T6rvV8OhbJKyzWwPwjdnN3JuSQ3gWxb06v2+dl2tdoqNXTvlylipSSKpS8UzzQ==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/@types/vscode": {
       "version": "1.75.0",
       "resolved": "https://registry.npmjs.org/@types/vscode/-/vscode-1.75.0.tgz",
@@ -406,6 +859,13 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/@types/vscode-webview": {
+      "version": "1.57.5",
+      "resolved": "https://registry.npmjs.org/@types/vscode-webview/-/vscode-webview-1.57.5.tgz",
+      "integrity": "sha512-iBAUYNYkz+uk1kdsq05fEcoh8gJmwT3lqqFPN7MGyjQ3HVloViMdo7ZJ8DFIP8WOK74PjOEilosqAyxV2iUFUw==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/@vscode/debugprotocol": {
       "version": "1.68.0",
       "resolved": "https://registry.npmjs.org/@vscode/debugprotocol/-/debugprotocol-1.68.0.tgz",
@@ -1169,6 +1629,48 @@
         "node": ">= 0.4"
       }
     },
+    "node_modules/esbuild": {
+      "version": "0.25.9",
+      "resolved": "https://registry.npmjs.org/esbuild/-/esbuild-0.25.9.tgz",
+      "integrity": "sha512-CRbODhYyQx3qp7ZEwzxOk4JBqmD/seJrzPa/cGjY1VtIn5E09Oi9/dB4JwctnfZ8Q8iT7rioVv5k/FNT/uf54g==",
+      "dev": true,
+      "hasInstallScript": true,
+      "license": "MIT",
+      "bin": {
+        "esbuild": "bin/esbuild"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "optionalDependencies": {
+        "@esbuild/aix-ppc64": "0.25.9",
+        "@esbuild/android-arm": "0.25.9",
+        "@esbuild/android-arm64": "0.25.9",
+        "@esbuild/android-x64": "0.25.9",
+        "@esbuild/darwin-arm64": "0.25.9",
+        "@esbuild/darwin-x64": "0.25.9",
+        "@esbuild/freebsd-arm64": "0.25.9",
+        "@esbuild/freebsd-x64": "0.25.9",
+        "@esbuild/linux-arm": "0.25.9",
+        "@esbuild/linux-arm64": "0.25.9",
+        "@esbuild/linux-ia32": "0.25.9",
+        "@esbuild/linux-loong64": "0.25.9",
+        "@esbuild/linux-mips64el": "0.25.9",
+        "@esbuild/linux-ppc64": "0.25.9",
+        "@esbuild/linux-riscv64": "0.25.9",
+        "@esbuild/linux-s390x": "0.25.9",
+        "@esbuild/linux-x64": "0.25.9",
+        "@esbuild/netbsd-arm64": "0.25.9",
+        "@esbuild/netbsd-x64": "0.25.9",
+        "@esbuild/openbsd-arm64": "0.25.9",
+        "@esbuild/openbsd-x64": "0.25.9",
+        "@esbuild/openharmony-arm64": "0.25.9",
+        "@esbuild/sunos-x64": "0.25.9",
+        "@esbuild/win32-arm64": "0.25.9",
+        "@esbuild/win32-ia32": "0.25.9",
+        "@esbuild/win32-x64": "0.25.9"
+      }
+    },
     "node_modules/escape-string-regexp": {
       "version": "1.0.5",
       "resolved": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz",
@@ -2557,6 +3059,13 @@
         "node": ">=4"
       }
     },
+    "node_modules/tabulator-tables": {
+      "version": "6.3.1",
+      "resolved": "https://registry.npmjs.org/tabulator-tables/-/tabulator-tables-6.3.1.tgz",
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+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/tar-fs": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/tar-fs/-/tar-fs-2.1.1.tgz",

lldb/tools/lldb-dap/package.json

@@ -29,11 +29,15 @@
   ],
   "devDependencies": {
     "@types/node": "^18.19.41",
+    "@types/tabulator-tables": "^6.2.10",
     "@types/vscode": "1.75.0",
+    "@types/vscode-webview": "^1.57.5",
     "@vscode/debugprotocol": "^1.68.0",
     "@vscode/vsce": "^3.2.2",
+    "esbuild": "^0.25.9",
     "prettier": "^3.4.2",
     "prettier-plugin-curly": "^0.3.1",
+    "tabulator-tables": "^6.3.1",
     "typescript": "^5.7.3"
   },
   "activationEvents": [
@@ -42,8 +46,11 @@
   ],
   "main": "./out/extension",
   "scripts": {
-    "vscode:prepublish": "tsc -p ./",
-    "watch": "tsc -watch -p ./",
+    "bundle-symbols-table-view": "npx tsc -p src-ts/webview --noEmit && npx esbuild src-ts/webview/symbols-table-view.ts --bundle --format=iife --outdir=./out/webview",
+    "bundle-tabulator": "cp node_modules/tabulator-tables/dist/js/tabulator.min.js ./out/webview/ && cp node_modules/tabulator-tables/dist/css/tabulator_midnight.min.css ./out/webview/ && cp node_modules/tabulator-tables/dist/css/tabulator_simple.min.css ./out/webview/",
+    "bundle-webview": "npm run bundle-symbols-table-view && npm run bundle-tabulator",
+    "vscode:prepublish": "npm run bundle-webview && tsc -p ./",
+    "watch": "npm run bundle-webview && tsc -watch -p ./",
     "format": "npx prettier './src-ts/' --write",
     "package": "rm -rf ./out/lldb-dap.vsix && vsce package --out ./out/lldb-dap.vsix",
     "publish": "vsce publish",
@@ -259,6 +266,15 @@
       {
         "command": "lldb-dap.modules.copyProperty",
         "title": "Copy Value"
+      },
+      {
+        "command": "lldb-dap.modules.showSymbols",
+        "title": "Show Module Symbols"
+      },
+      {
+        "category": "lldb-dap",
+        "command": "lldb-dap.debug.showSymbols",
+        "title": "Show Symbols of a Module"
       }
     ],
     "menus": {
@@ -266,12 +282,24 @@
         {
           "command": "lldb-dap.modules.copyProperty",
           "when": "false"
+        },
+        {
+          "command": "lldb-dap.modules.showSymbols",
+          "when": "false"
+        },
+        {
+          "command": "lldb-dap.debug.showSymbols",
+          "when": "debuggersAvailable && debugType == 'lldb-dap' && lldb-dap.supportsModuleSymbolsRequest"
         }
       ],
       "view/item/context": [
         {
           "command": "lldb-dap.modules.copyProperty",
           "when": "view == lldb-dap.modules && viewItem == property"
+        },
+        {
+          "command": "lldb-dap.modules.showSymbols",
+          "when": "view == lldb-dap.modules && viewItem == module && lldb-dap.supportsModuleSymbolsRequest"
         }
       ]
     },

lldb/tools/lldb-dap/src-ts/debug-configuration-provider.ts

@@ -69,6 +69,10 @@ const configurations: Record<string, DefaultConfig> = {
   terminateCommands: { type: "stringArray", default: [] },
 };
 
+export function getDefaultConfigKey(key: string): string | number | boolean | string[] | undefined {
+  return configurations[key]?.default;
+}
+
 export class LLDBDapConfigurationProvider
   implements vscode.DebugConfigurationProvider
 {

lldb/tools/lldb-dap/src-ts/debug-session-tracker.ts

@@ -1,11 +1,17 @@
 import { DebugProtocol } from "@vscode/debugprotocol";
 import * as vscode from "vscode";
 
+export interface LLDBDapCapabilities extends DebugProtocol.Capabilities {
+  /** The debug adapter supports the `moduleSymbols` request. */
+  supportsModuleSymbolsRequest?: boolean;
+}
+
 /** A helper type for mapping event types to their corresponding data type. */
 // prettier-ignore
 interface EventMap {
   "module": DebugProtocol.ModuleEvent;
   "exited": DebugProtocol.ExitedEvent;
+  "capabilities": DebugProtocol.CapabilitiesEvent;
 }
 
 /** A type assertion to check if a ProtocolMessage is an event or if it is a specific event. */
@@ -39,6 +45,9 @@ export class DebugSessionTracker
   private modulesChanged = new vscode.EventEmitter<
     vscode.DebugSession | undefined
   >();
+  private sessionReceivedCapabilities =
+      new vscode.EventEmitter<[ vscode.DebugSession, LLDBDapCapabilities ]>();
+  private sessionExited = new vscode.EventEmitter<vscode.DebugSession>();
 
   /**
    * Fired when modules are changed for any active debug session.
@@ -48,6 +57,15 @@ export class DebugSessionTracker
   onDidChangeModules: vscode.Event<vscode.DebugSession | undefined> =
     this.modulesChanged.event;
 
+  /** Fired when a debug session is initialized. */
+  onDidReceiveSessionCapabilities:
+      vscode.Event<[ vscode.DebugSession, LLDBDapCapabilities ]> =
+      this.sessionReceivedCapabilities.event;
+
+  /** Fired when a debug session is exiting. */
+  onDidExitSession: vscode.Event<vscode.DebugSession> =
+    this.sessionExited.event;
+
   constructor(private logger: vscode.LogOutputChannel) {
     this.onDidChangeModules(this.moduleChangedListener, this);
     vscode.debug.onDidChangeActiveDebugSession((session) =>
@@ -146,6 +164,10 @@ export class DebugSessionTracker
       this.logger.info(
         `Session "${session.name}" exited with code ${exitCode}`,
       );
+
+      this.sessionExited.fire(session);
+    } else if (isEvent(message, "capabilities")) {
+      this.sessionReceivedCapabilities.fire([ session, message.body.capabilities ]);
     }
   }
 }

lldb/tools/lldb-dap/src-ts/extension.ts

@@ -12,6 +12,7 @@ import {
   ModuleProperty,
 } from "./ui/modules-data-provider";
 import { LogFilePathProvider } from "./logging";
+import { SymbolsProvider } from "./ui/symbols-provider";
 
 /**
  * This class represents the extension and manages its life cycle. Other extensions
@@ -19,6 +20,7 @@ import { LogFilePathProvider } from "./logging";
  */
 export class LLDBDapExtension extends DisposableContext {
   constructor(
+    context: vscode.ExtensionContext,
     logger: vscode.LogOutputChannel,
     logFilePath: LogFilePathProvider,
     outputChannel: vscode.OutputChannel,
@@ -52,10 +54,12 @@ export class LLDBDapExtension extends DisposableContext {
       vscode.window.registerUriHandler(new LaunchUriHandler()),
     );
 
-    vscode.commands.registerCommand(
+    this.pushSubscription(vscode.commands.registerCommand(
       "lldb-dap.modules.copyProperty",
       (node: ModuleProperty) => vscode.env.clipboard.writeText(node.value),
-    );
+    ));
+
+    this.pushSubscription(new SymbolsProvider(sessionTracker, context));
   }
 }
 
@@ -67,7 +71,7 @@ export async function activate(context: vscode.ExtensionContext) {
   outputChannel.info("LLDB-DAP extension activating...");
   const logFilePath = new LogFilePathProvider(context, outputChannel);
   context.subscriptions.push(
-    new LLDBDapExtension(outputChannel, logFilePath, outputChannel),
+    new LLDBDapExtension(context, outputChannel, logFilePath, outputChannel),
   );
   outputChannel.info("LLDB-DAP extension activated");
 }

lldb/tools/lldb-dap/src-ts/index.d.ts

@@ -0,0 +1,14 @@
+export {};
+
+/// The symbol type we get from the lldb-dap server
+export declare interface SymbolType {
+  id: number;
+  isDebug: boolean;
+  isSynthetic: boolean;
+  isExternal: boolean;
+  type: string;
+  fileAddress: number;
+  loadAddress?: number;
+  size: number;
+  name: string;
+}

lldb/tools/lldb-dap/src-ts/ui/modules-data-provider.ts

@@ -19,6 +19,7 @@ class ModuleItem extends vscode.TreeItem {
   constructor(module: DebugProtocol.Module) {
     super(module.name, vscode.TreeItemCollapsibleState.Collapsed);
     this.description = module.symbolStatus;
+    this.contextValue = "module";
   }
 
   static getProperties(module: DebugProtocol.Module): ModuleProperty[] {

lldb/tools/lldb-dap/src-ts/ui/symbols-provider.ts

@@ -0,0 +1,127 @@
+import * as vscode from "vscode";
+import { DebugProtocol } from "@vscode/debugprotocol";
+
+import { DebugSessionTracker } from "../debug-session-tracker";
+import { DisposableContext } from "../disposable-context";
+
+import { SymbolType } from "..";
+import { getSymbolsTableHTMLContent } from "./symbols-webview-html";
+import { getDefaultConfigKey } from "../debug-configuration-provider";
+
+export class SymbolsProvider extends DisposableContext {
+  constructor(
+    private readonly tracker: DebugSessionTracker,
+    private readonly extensionContext: vscode.ExtensionContext,
+  ) {
+    super();
+
+    this.pushSubscription(vscode.commands.registerCommand(
+      "lldb-dap.debug.showSymbols",
+      () => {
+        const session = vscode.debug.activeDebugSession;
+        if (!session) return;
+
+        this.SelectModuleAndShowSymbols(session);
+      },
+    ));
+
+    this.pushSubscription(vscode.commands.registerCommand(
+      "lldb-dap.modules.showSymbols",
+      (moduleItem: DebugProtocol.Module) => {
+        const session = vscode.debug.activeDebugSession;
+        if (!session) return;
+
+        this.showSymbolsForModule(session, moduleItem);
+      },
+    ));
+
+    this.tracker.onDidReceiveSessionCapabilities(([ _session, capabilities ]) => {
+      if (capabilities.supportsModuleSymbolsRequest) {
+        vscode.commands.executeCommand(
+            "setContext", "lldb-dap.supportsModuleSymbolsRequest", true);
+      }
+    });
+
+    this.tracker.onDidExitSession((_session) => {
+      vscode.commands.executeCommand("setContext", "lldb-dap.supportsModuleSymbolsRequest", false);
+    });
+  }
+
+  private async SelectModuleAndShowSymbols(session: vscode.DebugSession) {
+    const modules = this.tracker.debugSessionModules(session);
+    if (!modules || modules.length === 0) {
+      return;
+    }
+
+    // Let the user select a module to show symbols for
+    const selectedModule = await vscode.window.showQuickPick(modules.map(m => new ModuleQuickPickItem(m)), {
+        placeHolder: "Select a module to show symbols for"
+    });
+    if (!selectedModule) {
+      return;
+    }
+
+    this.showSymbolsForModule(session, selectedModule.module);
+  }
+
+  private async showSymbolsForModule(session: vscode.DebugSession, module: DebugProtocol.Module) {
+    try {
+      const symbols = await this.getSymbolsForModule(session, module.id.toString());
+      this.showSymbolsInNewTab(module.name.toString(), symbols);
+    } catch (error) {
+      if (error instanceof Error) {
+        vscode.window.showErrorMessage("Failed to retrieve symbols: " + error.message);
+      } else {
+        vscode.window.showErrorMessage("Failed to retrieve symbols due to an unknown error.");
+      }
+      
+      return;
+    }
+  }
+
+  private async getSymbolsForModule(session: vscode.DebugSession, moduleId: string): Promise<SymbolType[]> {
+    const symbols_response: { symbols: Array<SymbolType> } = await session.customRequest("__lldb_moduleSymbols", { moduleId, moduleName: '' });
+    return symbols_response?.symbols || [];
+  }
+
+  private async showSymbolsInNewTab(moduleName: string, symbols: SymbolType[]) {
+    const panel = vscode.window.createWebviewPanel(
+      "lldb-dap.symbols",
+      `Symbols for ${moduleName}`,
+      vscode.ViewColumn.Active,
+      {
+        enableScripts: true,
+        localResourceRoots: [
+          this.getExtensionResourcePath()
+        ]
+      }
+    );
+
+    let tabulatorJsFilename = "tabulator_simple.min.css";
+    if (vscode.window.activeColorTheme.kind === vscode.ColorThemeKind.Dark || vscode.window.activeColorTheme.kind === vscode.ColorThemeKind.HighContrast) {
+      tabulatorJsFilename = "tabulator_midnight.min.css";
+    }
+    const tabulatorCssPath = panel.webview.asWebviewUri(vscode.Uri.joinPath(this.getExtensionResourcePath(), tabulatorJsFilename));
+    const tabulatorJsPath = panel.webview.asWebviewUri(vscode.Uri.joinPath(this.getExtensionResourcePath(), "tabulator.min.js"));
+    const symbolsTableScriptPath = panel.webview.asWebviewUri(vscode.Uri.joinPath(this.getExtensionResourcePath(), "symbols-table-view.js"));
+
+    panel.webview.html = getSymbolsTableHTMLContent(tabulatorJsPath, tabulatorCssPath, symbolsTableScriptPath);
+    panel.webview.postMessage({ command: "updateSymbols", symbols: symbols });
+  }
+
+  private getExtensionResourcePath(): vscode.Uri {
+    return vscode.Uri.joinPath(this.extensionContext.extensionUri, "out", "webview");
+  }
+}
+
+class ModuleQuickPickItem implements vscode.QuickPickItem {
+  constructor(public readonly module: DebugProtocol.Module) {}
+
+  get label(): string {
+    return this.module.name;
+  }
+
+  get description(): string {
+    return this.module.id.toString();
+  }
+}

lldb/tools/lldb-dap/src-ts/ui/symbols-webview-html.ts

@@ -0,0 +1,51 @@
+import * as vscode from "vscode";
+
+export function getSymbolsTableHTMLContent(tabulatorJsPath: vscode.Uri, tabulatorCssPath: vscode.Uri, symbolsTableScriptPath: vscode.Uri): string {
+    return `<!DOCTYPE html>
+<html>
+<head>
+    <meta charset="UTF-8">
+    <link href="${tabulatorCssPath}" rel="stylesheet">
+    <style>
+      .tabulator {
+        background-color: var(--vscode-editor-background);
+        color: var(--vscode-editor-foreground);
+      }
+
+      .tabulator .tabulator-header .tabulator-col {
+        background-color: var(--vscode-editor-background);
+        color: var(--vscode-editor-foreground);
+      }
+
+      .tabulator-row {
+        background-color: var(--vscode-editor-background);
+        color: var(--vscode-editor-foreground);
+      }
+
+      .tabulator-row.tabulator-row-even {
+        background-color: var(--vscode-editor-background);
+        color: var(--vscode-editor-foreground);
+      }
+
+      .tabulator-row.tabulator-selected {
+        background-color: var(--vscode-editor-background);
+        color: var(--vscode-editor-foreground);
+      }
+
+      .tabulator-cell {
+        text-overflow: clip !important;
+      }
+
+      #symbols-table {
+        width: 100%;
+        height: 100vh;
+      }
+    </style>
+</head>
+<body>
+    <div id="symbols-table"></div>
+    <script src="${tabulatorJsPath}"></script>
+    <script src="${symbolsTableScriptPath}"></script>
+</body>
+</html>`;
+}

lldb/tools/lldb-dap/src-ts/webview/symbols-table-view.ts

@@ -0,0 +1,114 @@
+import type { CellComponent, ColumnDefinition } from "tabulator-tables";
+import type { SymbolType } from ".."
+
+/// SVG from https://github.com/olifolkerd/tabulator/blob/master/src/js/modules/Format/defaults/formatters/tickCross.js
+/// but with the default font color.
+/// hopefully in the future we can set the color as parameter: https://github.com/olifolkerd/tabulator/pull/4791
+const TICK_ELEMENT = `<svg enable-background="new 0 0 24 24" height="14" width="14" viewBox="0 0 24 24" xml:space="preserve" ><path fill="var(--vscode-editor-foreground)" clip-rule="evenodd" d="M21.652,3.211c-0.293-0.295-0.77-0.295-1.061,0L9.41,14.34  c-0.293,0.297-0.771,0.297-1.062,0L3.449,9.351C3.304,9.203,3.114,9.13,2.923,9.129C2.73,9.128,2.534,9.201,2.387,9.351  l-2.165,1.946C0.078,11.445,0,11.63,0,11.823c0,0.194,0.078,0.397,0.223,0.544l4.94,5.184c0.292,0.296,0.771,0.776,1.062,1.07  l2.124,2.141c0.292,0.293,0.769,0.293,1.062,0l14.366-14.34c0.293-0.294,0.293-0.777,0-1.071L21.652,3.211z" fill-rule="evenodd"/></svg>`;
+
+function getTabulatorHexaFormatter(padding: number): (cell: CellComponent) => string {
+  return (cell: CellComponent) => {
+    const val = cell.getValue();
+    if (val === undefined || val === null) {
+      return "";
+    }
+
+    return val !== undefined ? "0x" + val.toString(16).toLowerCase().padStart(padding, "0") : "";
+  };
+}
+
+const SYMBOL_TABLE_COLUMNS: ColumnDefinition[] = [
+  { title: "ID", field: "id", headerTooltip: true, sorter: "number", widthGrow: 0.6 },
+  {
+    title: "Name",
+    field: "name",
+    headerTooltip: true,
+    sorter: "string",
+    widthGrow: 2.5,
+    minWidth: 200,
+    tooltip : (_event: MouseEvent, cell: CellComponent) => {
+      const rowData = cell.getRow().getData();
+      return rowData.name;
+    }
+  },
+  {
+    title: "Debug",
+    field: "isDebug",
+    headerTooltip: true,
+    hozAlign: "center",
+    widthGrow: 0.8,
+    formatter: "tickCross",
+    formatterParams: {
+      tickElement: TICK_ELEMENT,
+      crossElement: false,
+    }
+  },
+  {
+    title: "Synthetic",
+    field: "isSynthetic",
+    headerTooltip: true,
+    hozAlign: "center",
+    widthGrow: 0.8,
+    formatter: "tickCross",
+    formatterParams: {
+      tickElement: TICK_ELEMENT,
+      crossElement: false,
+    }
+  },
+  {
+    title: "External",
+    field: "isExternal",
+    headerTooltip: true,
+    hozAlign: "center",
+    widthGrow: 0.8,
+    formatter: "tickCross",
+    formatterParams: {
+      tickElement: TICK_ELEMENT,
+      crossElement: false,
+    }
+  },
+  { title: "Type", field: "type", sorter: "string" },
+  {
+    title: "File Address",
+    field: "fileAddress",
+    headerTooltip: true,
+    sorter: "number",
+    widthGrow : 1.25,
+    formatter: getTabulatorHexaFormatter(16),
+  },
+  {
+    title: "Load Address",
+    field: "loadAddress",
+    headerTooltip: true,
+    sorter: "number",
+    widthGrow : 1.25,
+    formatter: getTabulatorHexaFormatter(16),
+  },
+  { title: "Size", field: "size", headerTooltip: true, sorter: "number", formatter: getTabulatorHexaFormatter(8) },
+];
+
+const vscode = acquireVsCodeApi();
+const previousState: any = vscode.getState();
+
+declare const Tabulator: any; // HACK: real definition comes from tabulator.min.js
+const SYMBOLS_TABLE = new Tabulator("#symbols-table", {
+  height: "100vh",
+  columns: SYMBOL_TABLE_COLUMNS,
+  layout: "fitColumns",
+  data: previousState?.symbols || [],
+});
+
+function updateSymbolsTable(symbols: SymbolType[]) {
+  SYMBOLS_TABLE.setData(symbols);
+}
+
+window.addEventListener("message", (event: MessageEvent<any>) => {
+  const message = event.data;
+  switch (message.command) {
+    case "updateSymbols":
+      vscode.setState({ symbols: message.symbols });
+      updateSymbolsTable(message.symbols);
+      break;
+  }
+});
+

lldb/tools/lldb-dap/src-ts/webview/tsconfig.json

@@ -0,0 +1,15 @@
+{
+	"compilerOptions": {
+		"moduleResolution": "node",
+		"module": "esnext",
+		"outDir": "out",
+		"rootDir": ".",
+		"sourceMap": true,
+		"strict": true,
+		"noEmit": true,
+		"target": "es2017"
+	},
+	"include": [
+		"./"
+	],
+}

lldb/tools/lldb-dap/tsconfig.json

@@ -1,5 +1,6 @@
 {
 	"compilerOptions": {
+		"moduleResolution": "node",
 		"module": "commonjs",
 		"outDir": "out",
 		"rootDir": "src-ts",
@@ -12,5 +13,6 @@
 	],
 	"exclude": [
 		"node_modules",
+		"src-ts/webview",
 	]
 }

lldb/unittests/Core/CMakeLists.txt

@@ -15,7 +15,6 @@ add_lldb_unittest(LLDBCoreTests
   SourceManagerTest.cpp
   TelemetryTest.cpp
   UniqueCStringMapTest.cpp
-  Value.cpp
 
   LINK_COMPONENTS
     Support

lldb/unittests/Core/Value.cpp

@@ -1,39 +0,0 @@
-//===----------------------------------------------------------------------===//
-//
-// 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 "lldb/Core/Value.h"
-#include "Plugins/Platform/MacOSX/PlatformMacOSX.h"
-#include "Plugins/TypeSystem/Clang/TypeSystemClang.h"
-#include "TestingSupport/SubsystemRAII.h"
-#include "TestingSupport/Symbol/ClangTestUtils.h"
-
-#include "lldb/Utility/DataExtractor.h"
-
-#include "gtest/gtest.h"
-
-using namespace lldb_private;
-using namespace lldb_private::clang_utils;
-
-TEST(ValueTest, GetValueAsData) {
-  SubsystemRAII<FileSystem, HostInfo, PlatformMacOSX> subsystems;
-  auto holder = std::make_unique<clang_utils::TypeSystemClangHolder>("test");
-  auto *clang = holder->GetAST();
-
-  Value v(Scalar(42));
-  DataExtractor extractor;
-
-  // no compiler type
-  Status status = v.GetValueAsData(nullptr, extractor, nullptr);
-  ASSERT_TRUE(status.Fail());
-
-  // with compiler type
-  v.SetCompilerType(clang->GetBasicType(lldb::BasicType::eBasicTypeChar));
-
-  status = v.GetValueAsData(nullptr, extractor, nullptr);
-  ASSERT_TRUE(status.Success());
-}

lldb/unittests/DAP/CMakeLists.txt

@@ -1,6 +1,7 @@
 add_lldb_unittest(DAPTests
   DAPErrorTest.cpp
   DAPTest.cpp
+  DAPTypesTest.cpp
   FifoFilesTest.cpp
   Handler/DisconnectTest.cpp
   Handler/ContinueTest.cpp

lldb/unittests/DAP/DAPTypesTest.cpp

@@ -0,0 +1,60 @@
+//===-- DAPTypesTest.cpp ----------------------------------------*- 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
+//
+//===----------------------------------------------------------------------===//
+
+#include "Protocol/DAPTypes.h"
+#include "TestingSupport/TestUtilities.h"
+#include "lldb/lldb-enumerations.h"
+#include "llvm/Testing/Support/Error.h"
+#include "gtest/gtest.h"
+#include <optional>
+
+using namespace llvm;
+using namespace lldb;
+using namespace lldb_dap;
+using namespace lldb_dap::protocol;
+using lldb_private::roundtripJSON;
+
+TEST(DAPTypesTest, SourceLLDBData) {
+  SourceLLDBData source_data;
+  source_data.persistenceData =
+      PersistenceData{"module_path123", "symbol_name456"};
+
+  llvm::Expected<SourceLLDBData> deserialized_data = roundtripJSON(source_data);
+  ASSERT_THAT_EXPECTED(deserialized_data, llvm::Succeeded());
+
+  EXPECT_EQ(source_data.persistenceData->module_path,
+            deserialized_data->persistenceData->module_path);
+  EXPECT_EQ(source_data.persistenceData->symbol_name,
+            deserialized_data->persistenceData->symbol_name);
+}
+
+TEST(DAPTypesTest, DAPSymbol) {
+  Symbol symbol;
+  symbol.id = 42;
+  symbol.isDebug = true;
+  symbol.isExternal = false;
+  symbol.isSynthetic = true;
+  symbol.type = lldb::eSymbolTypeTrampoline;
+  symbol.fileAddress = 0x12345678;
+  symbol.loadAddress = 0x87654321;
+  symbol.size = 64;
+  symbol.name = "testSymbol";
+
+  llvm::Expected<Symbol> deserialized_symbol = roundtripJSON(symbol);
+  ASSERT_THAT_EXPECTED(deserialized_symbol, llvm::Succeeded());
+
+  EXPECT_EQ(symbol.id, deserialized_symbol->id);
+  EXPECT_EQ(symbol.isDebug, deserialized_symbol->isDebug);
+  EXPECT_EQ(symbol.isExternal, deserialized_symbol->isExternal);
+  EXPECT_EQ(symbol.isSynthetic, deserialized_symbol->isSynthetic);
+  EXPECT_EQ(symbol.type, deserialized_symbol->type);
+  EXPECT_EQ(symbol.fileAddress, deserialized_symbol->fileAddress);
+  EXPECT_EQ(symbol.loadAddress, deserialized_symbol->loadAddress);
+  EXPECT_EQ(symbol.size, deserialized_symbol->size);
+  EXPECT_EQ(symbol.name, deserialized_symbol->name);
+}

llvm/cmake/modules/HandleLLVMOptions.cmake

@@ -175,24 +175,6 @@ if(LLVM_ENABLE_EXPENSIVE_CHECKS)
   endif()
 endif()
 
-CHECK_CXX_SOURCE_COMPILES("
-#include <iosfwd>
-#if !defined(__GLIBCXX__)
-#error Not libstdc++
-#endif
-int main() { return 0; }
-" LLVM_USES_LIBSTDCXX)
-
-option(GLIBCXX_USE_CXX11_ABI "Use new libstdc++ CXX11 ABI" ON)
-
-if (LLVM_USES_LIBSTDCXX)
-  if (GLIBCXX_USE_CXX11_ABI)
-    add_compile_definitions(_GLIBCXX_USE_CXX11_ABI=1)
-  else()
-    add_compile_definitions(_GLIBCXX_USE_CXX11_ABI=0)
-  endif()
-endif()
-
 if (LLVM_ENABLE_STRICT_FIXED_SIZE_VECTORS)
   add_compile_definitions(STRICT_FIXED_SIZE_VECTORS)
 endif()

llvm/include/llvm/MC/MCMachObjectWriter.h

@@ -17,7 +17,6 @@
 #include "llvm/MC/MCLinkerOptimizationHint.h"
 #include "llvm/MC/MCObjectWriter.h"
 #include "llvm/MC/MCSectionMachO.h"
-#include "llvm/MC/MCSymbolMachO.h"
 #include "llvm/MC/StringTableBuilder.h"
 #include "llvm/Support/Compiler.h"
 #include "llvm/Support/EndianStream.h"
@@ -111,7 +110,7 @@ public:
 private:
   /// Helper struct for containing some precomputed information on symbols.
   struct MachSymbolData {
-    const MCSymbolMachO *Symbol;
+    const MCSymbol *Symbol;
     uint64_t StringIndex;
     uint8_t SectionIndex;
 
@@ -120,7 +119,7 @@ private:
   };
 
   struct IndirectSymbolData {
-    MCSymbolMachO *Symbol;
+    MCSymbol *Symbol;
     MCSection *Section;
   };
 

llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp

@@ -17029,7 +17029,8 @@ SDValue DAGCombiner::visitFADDForFMACombine(SDNode *N) {
   // fadd (G, (fma A, B, (fma (C, D, (fmul (E, F)))))) -->
   // fma A, B, (fma C, D, fma (E, F, G)).
   // This requires reassociation because it changes the order of operations.
-  bool CanReassociate = N->getFlags().hasAllowReassociation();
+  bool CanReassociate =
+      Options.UnsafeFPMath || N->getFlags().hasAllowReassociation();
   if (CanReassociate) {
     SDValue FMA, E;
     if (isFusedOp(N0) && N0.hasOneUse()) {
@@ -17695,7 +17696,7 @@ SDValue DAGCombiner::visitFADD(SDNode *N) {
   // If 'unsafe math' or reassoc and nsz, fold lots of things.
   // TODO: break out portions of the transformations below for which Unsafe is
   //       considered and which do not require both nsz and reassoc
-  if ((Options.NoSignedZerosFPMath ||
+  if (((Options.UnsafeFPMath && Options.NoSignedZerosFPMath) ||
        (Flags.hasAllowReassociation() && Flags.hasNoSignedZeros())) &&
       AllowNewConst) {
     // fadd (fadd x, c1), c2 -> fadd x, c1 + c2
@@ -17782,7 +17783,7 @@ SDValue DAGCombiner::visitFADD(SDNode *N) {
     }
   } // enable-unsafe-fp-math && AllowNewConst
 
-  if ((Options.NoSignedZerosFPMath ||
+  if (((Options.UnsafeFPMath && Options.NoSignedZerosFPMath) ||
        (Flags.hasAllowReassociation() && Flags.hasNoSignedZeros()))) {
     // Fold fadd(vecreduce(x), vecreduce(y)) -> vecreduce(fadd(x, y))
     if (SDValue SD = reassociateReduction(ISD::VECREDUCE_FADD, ISD::FADD, DL,
@@ -17885,7 +17886,7 @@ SDValue DAGCombiner::visitFSUB(SDNode *N) {
     }
   }
 
-  if ((Options.NoSignedZerosFPMath ||
+  if (((Options.UnsafeFPMath && Options.NoSignedZerosFPMath) ||
        (Flags.hasAllowReassociation() && Flags.hasNoSignedZeros())) &&
       N1.getOpcode() == ISD::FADD) {
     // X - (X + Y) -> -Y
@@ -18025,6 +18026,7 @@ SDValue DAGCombiner::visitFMUL(SDNode *N) {
   ConstantFPSDNode *N1CFP = isConstOrConstSplatFP(N1, true);
   EVT VT = N->getValueType(0);
   SDLoc DL(N);
+  const TargetOptions &Options = DAG.getTarget().Options;
   const SDNodeFlags Flags = N->getFlags();
   SelectionDAG::FlagInserter FlagsInserter(DAG, N);
 
@@ -18048,7 +18050,7 @@ SDValue DAGCombiner::visitFMUL(SDNode *N) {
   if (SDValue NewSel = foldBinOpIntoSelect(N))
     return NewSel;
 
-  if (Flags.hasAllowReassociation()) {
+  if (Options.UnsafeFPMath || Flags.hasAllowReassociation()) {
     // fmul (fmul X, C1), C2 -> fmul X, C1 * C2
     if (DAG.isConstantFPBuildVectorOrConstantFP(N1) &&
         N0.getOpcode() == ISD::FMUL) {
@@ -18225,7 +18227,8 @@ template <class MatchContextClass> SDValue DAGCombiner::visitFMA(SDNode *N) {
      !DAG.isConstantFPBuildVectorOrConstantFP(N1))
     return matcher.getNode(ISD::FMA, DL, VT, N1, N0, N2);
 
-  bool CanReassociate = N->getFlags().hasAllowReassociation();
+  bool CanReassociate =
+      Options.UnsafeFPMath || N->getFlags().hasAllowReassociation();
   if (CanReassociate) {
     // (fma x, c1, (fmul x, c2)) -> (fmul x, c1+c2)
     if (matcher.match(N2, ISD::FMUL) && N0 == N2.getOperand(0) &&
@@ -18320,8 +18323,9 @@ SDValue DAGCombiner::combineRepeatedFPDivisors(SDNode *N) {
   // TODO: Limit this transform based on optsize/minsize - it always creates at
   //       least 1 extra instruction. But the perf win may be substantial enough
   //       that only minsize should restrict this.
+  bool UnsafeMath = DAG.getTarget().Options.UnsafeFPMath;
   const SDNodeFlags Flags = N->getFlags();
-  if (LegalDAG || !Flags.hasAllowReciprocal())
+  if (LegalDAG || (!UnsafeMath && !Flags.hasAllowReciprocal()))
     return SDValue();
 
   // Skip if current node is a reciprocal/fneg-reciprocal.
@@ -18358,7 +18362,7 @@ SDValue DAGCombiner::combineRepeatedFPDivisors(SDNode *N) {
 
       // This division is eligible for optimization only if global unsafe math
       // is enabled or if this division allows reciprocal formation.
-      if (U->getFlags().hasAllowReciprocal())
+      if (UnsafeMath || U->getFlags().hasAllowReciprocal())
         Users.insert(U);
     }
   }
@@ -18983,9 +18987,7 @@ SDValue DAGCombiner::visitFP_ROUND(SDNode *N) {
     // single-step fp_round we want to fold to.
     // In other words, double rounding isn't the same as rounding.
     // Also, this is a value preserving truncation iff both fp_round's are.
-    if ((N->getFlags().hasAllowContract() &&
-         N0->getFlags().hasAllowContract()) ||
-        N0IsTrunc)
+    if (DAG.getTarget().Options.UnsafeFPMath || N0IsTrunc)
       return DAG.getNode(
           ISD::FP_ROUND, DL, VT, N0.getOperand(0),
           DAG.getIntPtrConstant(NIsTrunc && N0IsTrunc, DL, /*isTarget=*/true));

llvm/lib/MC/MCAsmStreamer.cpp

@@ -2340,9 +2340,6 @@ void MCAsmStreamer::AddEncodingComment(const MCInst &Inst,
 
   getAssembler().getEmitter().encodeInstruction(Inst, Code, Fixups, STI);
 
-  // RISC-V instructions are always little-endian, even on BE systems.
-  bool ForceLE = getContext().getTargetTriple().isRISCV();
-
   // If we are showing fixups, create symbolic markers in the encoded
   // representation. We do this by making a per-bit map to the fixup item index,
   // then trying to display it as nicely as possible.
@@ -2397,10 +2394,7 @@ void MCAsmStreamer::AddEncodingComment(const MCInst &Inst,
         unsigned Bit = (Code[i] >> j) & 1;
 
         unsigned FixupBit;
-        // RISC-V instructions are always little-endian.
-        // The FixupMap is indexed by actual bit positions in the LE
-        // instruction.
-        if (MAI->isLittleEndian() || ForceLE)
+        if (MAI->isLittleEndian())
           FixupBit = i * 8 + j;
         else
           FixupBit = i * 8 + (7-j);

llvm/lib/MC/MCMachOStreamer.cpp

@@ -149,7 +149,7 @@ void MCMachOStreamer::emitEHSymAttributes(const MCSymbol *Symbol,
                                           MCSymbol *EHSymbol) {
   auto *Sym = static_cast<const MCSymbolMachO *>(Symbol);
   getAssembler().registerSymbol(*Symbol);
-  if (Sym->isExternal())
+  if (Symbol->isExternal())
     emitSymbolAttribute(EHSymbol, MCSA_Global);
   if (Sym->isWeakDefinition())
     emitSymbolAttribute(EHSymbol, MCSA_WeakDefinition);
@@ -372,13 +372,12 @@ void MCMachOStreamer::emitSymbolDesc(MCSymbol *Symbol, unsigned DescValue) {
 
 void MCMachOStreamer::emitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
                                        Align ByteAlignment) {
-  auto &Sym = static_cast<MCSymbolMachO &>(*Symbol);
   // FIXME: Darwin 'as' does appear to allow redef of a .comm by itself.
   assert(Symbol->isUndefined() && "Cannot define a symbol twice!");
 
-  getAssembler().registerSymbol(Sym);
-  Sym.setExternal(true);
-  Sym.setCommon(Size, ByteAlignment);
+  getAssembler().registerSymbol(*Symbol);
+  Symbol->setExternal(true);
+  Symbol->setCommon(Size, ByteAlignment);
 }
 
 void MCMachOStreamer::emitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size,
@@ -461,8 +460,7 @@ void MCMachOStreamer::finishImpl() {
 }
 
 void MCMachOStreamer::finalizeCGProfileEntry(const MCSymbolRefExpr *&SRE) {
-  auto *S =
-      static_cast<MCSymbolMachO *>(const_cast<MCSymbol *>(&SRE->getSymbol()));
+  const MCSymbol *S = &SRE->getSymbol();
   if (getAssembler().registerSymbol(*S))
     S->setExternal(true);
 }

llvm/lib/MC/MCParser/AsmParser.cpp

@@ -1864,13 +1864,11 @@ bool AsmParser::parseStatement(ParseStatementInfo &Info,
       Lex();
     }
 
-    if (MAI.isMachO() && CFIStartProcLoc) {
-      auto *SymM = static_cast<MCSymbolMachO *>(Sym);
-      if (SymM->isExternal() && !SymM->isAltEntry())
-        return Error(StartTokLoc, "non-private labels cannot appear between "
-                                  ".cfi_startproc / .cfi_endproc pairs") &&
-               Error(*CFIStartProcLoc, "previous .cfi_startproc was here");
-    }
+    if (MAI.hasSubsectionsViaSymbols() && CFIStartProcLoc &&
+        Sym->isExternal() && !static_cast<MCSymbolMachO *>(Sym)->isAltEntry())
+      return Error(StartTokLoc, "non-private labels cannot appear between "
+                                ".cfi_startproc / .cfi_endproc pairs") &&
+             Error(*CFIStartProcLoc, "previous .cfi_startproc was here");
 
     if (discardLTOSymbol(IDVal))
       return false;

llvm/lib/MC/MCParser/MasmParser.cpp

@@ -39,7 +39,7 @@
 #include "llvm/MC/MCSection.h"
 #include "llvm/MC/MCStreamer.h"
 #include "llvm/MC/MCSubtargetInfo.h"
-#include "llvm/MC/MCSymbolCOFF.h"
+#include "llvm/MC/MCSymbol.h"
 #include "llvm/MC/MCTargetOptions.h"
 #include "llvm/Support/Casting.h"
 #include "llvm/Support/CommandLine.h"
@@ -3009,8 +3009,8 @@ bool MasmParser::parseDirectiveEquate(StringRef IDVal, StringRef Name,
     return false;
   }
 
-  auto *Sym =
-      static_cast<MCSymbolCOFF *>(getContext().getOrCreateSymbol(Var.Name));
+  MCSymbol *Sym = getContext().getOrCreateSymbol(Var.Name);
+
   const MCConstantExpr *PrevValue =
       Sym->isVariable()
           ? dyn_cast_or_null<MCConstantExpr>(Sym->getVariableValue())
@@ -4521,8 +4521,7 @@ bool MasmParser::parseDirectiveExtern() {
       KnownType[Name.lower()] = Type;
     }
 
-    auto *Sym =
-        static_cast<MCSymbolCOFF *>(getContext().getOrCreateSymbol(Name));
+    MCSymbol *Sym = getContext().getOrCreateSymbol(Name);
     Sym->setExternal(true);
     getStreamer().emitSymbolAttribute(Sym, MCSA_Extern);