diff --git a/clang/include/clang/AST/Decl.h b/clang/include/clang/AST/Decl.h index 5d4f18806ff42..0bbdfa2a9d524 100644 --- a/clang/include/clang/AST/Decl.h +++ b/clang/include/clang/AST/Decl.h @@ -835,14 +835,9 @@ class VarDecl : public DeclaratorDecl, public Redeclarable { public: /// Initialization styles. enum InitializationStyle { - /// C-style initialization with assignment CInit, /// Call-style initialization (C++98) - CallInit, - - /// Direct list-initialization (C++11) - ListInit }; /// Kinds of thread-local storage. @@ -1262,15 +1257,14 @@ class VarDecl : public DeclaratorDecl, public Redeclarable { /// constant expression, according to the relevant language standard. /// This only checks properties of the declaration, and does not check /// whether the initializer is in fact a constant expression. - bool mightBeUsableInConstantExpressions(const ASTContext &C) const; + bool mightBeUsableInConstantExpressions(ASTContext &C) const; /// Determine whether this variable's value can be used in a /// constant expression, according to the relevant language standard, /// including checking whether it was initialized by a constant expression. - bool isUsableInConstantExpressions(const ASTContext &C) const; + bool isUsableInConstantExpressions(ASTContext &C) const; EvaluatedStmt *ensureEvaluatedStmt() const; - EvaluatedStmt *getEvaluatedStmt() const; /// Attempt to evaluate the value of the initializer attached to this /// declaration, and produce notes explaining why it cannot be evaluated. diff --git a/clang/include/clang/Serialization/ASTRecordWriter.h b/clang/include/clang/Serialization/ASTRecordWriter.h index e362463b23096..edfcd9c52e2e9 100644 --- a/clang/include/clang/Serialization/ASTRecordWriter.h +++ b/clang/include/clang/Serialization/ASTRecordWriter.h @@ -266,9 +266,6 @@ class ASTRecordWriter void AddCXXDefinitionData(const CXXRecordDecl *D); - /// Emit information about the initializer of a VarDecl. - void AddVarDeclInit(const VarDecl *VD); - /// Write an OMPTraitInfo object. void writeOMPTraitInfo(const OMPTraitInfo *TI); diff --git a/clang/lib/AST/ComparisonCategories.cpp b/clang/lib/AST/ComparisonCategories.cpp index 8960504826448..6b6826c02a123 100644 --- a/clang/lib/AST/ComparisonCategories.cpp +++ b/clang/lib/AST/ComparisonCategories.cpp @@ -42,7 +42,7 @@ clang::getComparisonCategoryForBuiltinCmp(QualType T) { bool ComparisonCategoryInfo::ValueInfo::hasValidIntValue() const { assert(VD && "must have var decl"); - if (!VD->isUsableInConstantExpressions(VD->getASTContext())) + if (!VD->checkInitIsICE()) return false; // Before we attempt to get the value of the first field, ensure that we diff --git a/clang/lib/AST/Decl.cpp b/clang/lib/AST/Decl.cpp index 80bc22b61b709..884cd177d18e3 100644 --- a/clang/lib/AST/Decl.cpp +++ b/clang/lib/AST/Decl.cpp @@ -2277,7 +2277,7 @@ void VarDecl::setInit(Expr *I) { Init = I; } -bool VarDecl::mightBeUsableInConstantExpressions(const ASTContext &C) const { +bool VarDecl::mightBeUsableInConstantExpressions(ASTContext &C) const { const LangOptions &Lang = C.getLangOpts(); // OpenCL permits const integral variables to be used in constant @@ -2314,7 +2314,7 @@ bool VarDecl::mightBeUsableInConstantExpressions(const ASTContext &C) const { return Lang.CPlusPlus11 && isConstexpr(); } -bool VarDecl::isUsableInConstantExpressions(const ASTContext &Context) const { +bool VarDecl::isUsableInConstantExpressions(ASTContext &Context) const { // C++2a [expr.const]p3: // A variable is usable in constant expressions after its initializing // declaration is encountered... @@ -2356,10 +2356,6 @@ EvaluatedStmt *VarDecl::ensureEvaluatedStmt() const { return Eval; } -EvaluatedStmt *VarDecl::getEvaluatedStmt() const { - return Init.dyn_cast(); -} - APValue *VarDecl::evaluateValue() const { SmallVector Notes; return evaluateValueImpl(Notes, hasConstantInitialization()); @@ -2369,17 +2365,19 @@ APValue *VarDecl::evaluateValueImpl(SmallVectorImpl &Notes, bool IsConstantInitialization) const { EvaluatedStmt *Eval = ensureEvaluatedStmt(); - const auto *Init = cast(Eval->Value); - assert(!Init->isValueDependent()); - // We only produce notes indicating why an initializer is non-constant the // first time it is evaluated. FIXME: The notes won't always be emitted the // first time we try evaluation, so might not be produced at all. if (Eval->WasEvaluated) return Eval->Evaluated.isAbsent() ? nullptr : &Eval->Evaluated; + const auto *Init = cast(Eval->Value); + assert(!Init->isValueDependent()); + if (Eval->IsEvaluating) { // FIXME: Produce a diagnostic for self-initialization. + Eval->CheckedICE = true; + Eval->IsICE = false; return nullptr; } @@ -2407,11 +2405,18 @@ APValue *VarDecl::evaluateValueImpl(SmallVectorImpl &Notes, Eval->IsEvaluating = false; Eval->WasEvaluated = true; + // In C++11, we have determined whether the initializer was a constant + // expression as a side-effect. + if (getASTContext().getLangOpts().CPlusPlus11 && !Eval->CheckedICE) { + Eval->CheckedICE = true; + Eval->IsICE = Result && Notes.empty(); + } + return Result ? &Eval->Evaluated : nullptr; } APValue *VarDecl::getEvaluatedValue() const { - if (EvaluatedStmt *Eval = getEvaluatedStmt()) + if (EvaluatedStmt *Eval = Init.dyn_cast()) if (Eval->WasEvaluated) return &Eval->Evaluated; @@ -2617,7 +2622,7 @@ bool VarDecl::isNoDestroy(const ASTContext &Ctx) const { QualType::DestructionKind VarDecl::needsDestruction(const ASTContext &Ctx) const { - if (EvaluatedStmt *Eval = getEvaluatedStmt()) + if (EvaluatedStmt *Eval = Init.dyn_cast()) if (Eval->HasConstantDestruction) return QualType::DK_none; diff --git a/clang/lib/AST/ExprConstant.cpp b/clang/lib/AST/ExprConstant.cpp index fa4026b865fbb..412cfeb8fd3d2 100644 --- a/clang/lib/AST/ExprConstant.cpp +++ b/clang/lib/AST/ExprConstant.cpp @@ -3362,6 +3362,7 @@ static bool evaluateVarDeclInit(EvalInfo &Info, const Expr *E, !Info.getLangOpts().CPlusPlus11 && !VD->hasICEInitializer(Info.Ctx))) { Info.CCEDiag(E, diag::note_constexpr_var_init_non_constant, 1) << VD; NoteLValueLocation(Info, Base); + Info.addNotes(Notes); } // Never use the initializer of a weak variable, not even for constant @@ -3376,6 +3377,11 @@ static bool evaluateVarDeclInit(EvalInfo &Info, const Expr *E, return true; } +static bool IsConstNonVolatile(QualType T) { + Qualifiers Quals = T.getQualifiers(); + return Quals.hasConst() && !Quals.hasVolatile(); +} + /// Get the base index of the given base class within an APValue representing /// the given derived class. static unsigned getBaseIndex(const CXXRecordDecl *Derived, @@ -8187,12 +8193,6 @@ bool LValueExprEvaluator::VisitVarDecl(const Expr *E, const VarDecl *VD) { return Success(VD); } - if (!Info.getLangOpts().CPlusPlus11) { - Info.CCEDiag(E, diag::note_constexpr_ltor_non_integral, 1) - << VD << VD->getType(); - Info.Note(VD->getLocation(), diag::note_declared_at); - } - APValue *V; if (!evaluateVarDeclInit(Info, E, VD, Frame, Version, V)) return false; diff --git a/clang/lib/CodeGen/ItaniumCXXABI.cpp b/clang/lib/CodeGen/ItaniumCXXABI.cpp index 8ab80e66dec3e..6e169cf35869f 100644 --- a/clang/lib/CodeGen/ItaniumCXXABI.cpp +++ b/clang/lib/CodeGen/ItaniumCXXABI.cpp @@ -361,9 +361,8 @@ class ItaniumCXXABI : public CodeGen::CGCXXABI { return !VD->needsDestruction(getContext()) && InitDecl->evaluateValue(); // Otherwise, we need a thread wrapper unless we know that every - // translation unit will emit the value as a constant. We rely on the - // variable being constant-initialized in every translation unit if it's - // constant-initialized in any translation unit, which isn't actually + // translation unit will emit the value as a constant. We rely on + // ICE-ness not varying between translation units, which isn't actually // guaranteed by the standard but is necessary for sanity. return InitDecl->hasConstantInitialization(); } diff --git a/clang/lib/Sema/SemaDecl.cpp b/clang/lib/Sema/SemaDecl.cpp index 2bffd2a87d08b..07b70de5a8d22 100644 --- a/clang/lib/Sema/SemaDecl.cpp +++ b/clang/lib/Sema/SemaDecl.cpp @@ -12958,14 +12958,18 @@ void Sema::CheckCompleteVariableDeclaration(VarDecl *var) { // All the following checks are C++ only. if (!getLangOpts().CPlusPlus) { - // If this variable must be emitted, add it as an initializer for the - // current module. - if (Context.DeclMustBeEmitted(var) && !ModuleScopes.empty()) - Context.addModuleInitializer(ModuleScopes.back().Module, var); - return; + // If this variable must be emitted, add it as an initializer for the + // current module. + if (Context.DeclMustBeEmitted(var) && !ModuleScopes.empty()) + Context.addModuleInitializer(ModuleScopes.back().Module, var); + return; } + if (auto *DD = dyn_cast(var)) + CheckCompleteDecompositionDeclaration(DD); + QualType type = var->getType(); + if (type->isDependentType()) return; if (var->hasAttr()) getCurFunction()->addByrefBlockVar(var); @@ -13020,47 +13024,65 @@ void Sema::CheckCompleteVariableDeclaration(VarDecl *var) { } Diag(DiagLoc, diag::err_constexpr_var_requires_const_init) << var << Init->getSourceRange(); - for (unsigned I = 0, N = Notes.size(); I != N; ++I) - Diag(Notes[I].first, Notes[I].second); - } else if (GlobalStorage && var->hasAttr()) { - auto *Attr = var->getAttr(); - Diag(var->getLocation(), diag::err_require_constant_init_failed) + for (unsigned I = 0, N = Notes.size(); I != N; ++I) + Diag(Notes[I].first, Notes[I].second); + } + } else if (var->mightBeUsableInConstantExpressions(Context)) { + // Check whether the initializer of a const variable of integral or + // enumeration type is an ICE now, since we can't tell whether it was + // initialized by a constant expression if we check later. + var->checkInitIsICE(); + } + + // Don't emit further diagnostics about constexpr globals since they + // were just diagnosed. + if (!var->isConstexpr() && GlobalStorage && var->hasAttr()) { + // FIXME: Need strict checking in C++03 here. + bool DiagErr = getLangOpts().CPlusPlus11 + ? !var->checkInitIsICE() : !checkConstInit(); + if (DiagErr) { + auto *Attr = var->getAttr(); + Diag(var->getLocation(), diag::err_require_constant_init_failed) << Init->getSourceRange(); - Diag(Attr->getLocation(), diag::note_declared_required_constant_init_here) - << Attr->getRange() << Attr->isConstinit(); - for (auto &it : Notes) - Diag(it.first, it.second); - } else if (IsGlobal && - !getDiagnostics().isIgnored(diag::warn_global_constructor, - var->getLocation())) { + Diag(Attr->getLocation(), + diag::note_declared_required_constant_init_here) + << Attr->getRange() << Attr->isConstinit(); + if (getLangOpts().CPlusPlus11) { + APValue Value; + SmallVector Notes; + Init->EvaluateAsInitializer(Value, getASTContext(), var, Notes); + for (auto &it : Notes) + Diag(it.first, it.second); + } else { + Diag(CacheCulprit->getExprLoc(), + diag::note_invalid_subexpr_in_const_expr) + << CacheCulprit->getSourceRange(); + } + } + } + else if (!var->isConstexpr() && IsGlobal && + !getDiagnostics().isIgnored(diag::warn_global_constructor, + var->getLocation())) { // Warn about globals which don't have a constant initializer. Don't // warn about globals with a non-trivial destructor because we already // warned about them. CXXRecordDecl *RD = baseType->getAsCXXRecordDecl(); if (!(RD && !RD->hasTrivialDestructor())) { - // checkConstInit() here permits trivial default initialization even in - // C++11 onwards, where such an initializer is not a constant initializer - // but nonetheless doesn't require a global constructor. if (!checkConstInit()) Diag(var->getLocation(), diag::warn_global_constructor) - << Init->getSourceRange(); + << Init->getSourceRange(); } } } // Require the destructor. - if (!type->isDependentType()) - if (const RecordType *recordType = baseType->getAs()) - FinalizeVarWithDestructor(var, recordType); + if (const RecordType *recordType = baseType->getAs()) + FinalizeVarWithDestructor(var, recordType); // If this variable must be emitted, add it as an initializer for the current // module. if (Context.DeclMustBeEmitted(var) && !ModuleScopes.empty()) Context.addModuleInitializer(ModuleScopes.back().Module, var); - - // Build the bindings if this is a structured binding declaration. - if (auto *DD = dyn_cast(var)) - CheckCompleteDecompositionDeclaration(DD); } /// Determines if a variable's alignment is dependent. diff --git a/clang/lib/Sema/SemaDeclCXX.cpp b/clang/lib/Sema/SemaDeclCXX.cpp index bc119725e4a0a..322de7c87b5fa 100644 --- a/clang/lib/Sema/SemaDeclCXX.cpp +++ b/clang/lib/Sema/SemaDeclCXX.cpp @@ -1250,7 +1250,8 @@ static bool checkTupleLikeDecomposition(Sema &S, if (E.isInvalid()) return true; RefVD->setInit(E.get()); - S.CheckCompleteVariableDeclaration(RefVD); + if (!E.get()->isValueDependent()) + RefVD->checkInitIsICE(); E = S.BuildDeclarationNameExpr(CXXScopeSpec(), DeclarationNameInfo(B->getDeclName(), Loc), @@ -11124,8 +11125,8 @@ QualType Sema::CheckComparisonCategoryType(ComparisonCategoryType Kind, // Attempt to diagnose reasons why the STL definition of this type // might be foobar, including it failing to be a constant expression. // TODO Handle more ways the lookup or result can be invalid. - if (!VD->isStaticDataMember() || - !VD->isUsableInConstantExpressions(Context)) + if (!VD->isStaticDataMember() || !VD->isConstexpr() || !VD->hasInit() || + VD->isWeak() || !VD->checkInitIsICE()) return UnsupportedSTLError(USS_InvalidMember, MemName, VD); // Attempt to evaluate the var decl as a constant expression and extract diff --git a/clang/lib/Serialization/ASTReaderDecl.cpp b/clang/lib/Serialization/ASTReaderDecl.cpp index 7972328856879..60930e71aa01c 100644 --- a/clang/lib/Serialization/ASTReaderDecl.cpp +++ b/clang/lib/Serialization/ASTReaderDecl.cpp @@ -4453,7 +4453,7 @@ void ASTDeclReader::UpdateDecl(Decl *D, uint64_t Val = Record.readInt(); if (Val && !VD->getInit()) { VD->setInit(Record.readExpr()); - if (Val != 1) { + if (Val > 1) { // IsInitKnownICE = 1, IsInitNotICE = 2, IsInitICE = 3 EvaluatedStmt *Eval = VD->ensureEvaluatedStmt(); Eval->HasConstantInitialization = (Val & 2) != 0; Eval->HasConstantDestruction = (Val & 4) != 0; diff --git a/clang/lib/Serialization/ASTWriter.cpp b/clang/lib/Serialization/ASTWriter.cpp index f0ce843bd3e4c..bf3f92a2b3cc1 100644 --- a/clang/lib/Serialization/ASTWriter.cpp +++ b/clang/lib/Serialization/ASTWriter.cpp @@ -4980,7 +4980,13 @@ void ASTWriter::WriteDeclUpdatesBlocks(RecordDataImpl &OffsetsRecord) { const VarDecl *VD = cast(D); Record.push_back(VD->isInline()); Record.push_back(VD->isInlineSpecified()); - Record.AddVarDeclInit(VD); + if (VD->getInit()) { + Record.push_back(!VD->isInitKnownICE() ? 1 + : (VD->isInitICE() ? 3 : 2)); + Record.AddStmt(const_cast(VD->getInit())); + } else { + Record.push_back(0); + } break; } diff --git a/clang/lib/Serialization/ASTWriterDecl.cpp b/clang/lib/Serialization/ASTWriterDecl.cpp index 47ed44898f499..be53f58afd6ee 100644 --- a/clang/lib/Serialization/ASTWriterDecl.cpp +++ b/clang/lib/Serialization/ASTWriterDecl.cpp @@ -1006,7 +1006,19 @@ void ASTDeclWriter::VisitVarDecl(VarDecl *D) { } Record.push_back(D->getLinkageInternal()); - Record.AddVarDeclInit(D); + if (D->getInit()) { + if (!D->isInitKnownICE()) + Record.push_back(1); + else { + Record.push_back( + 2 | + (D->isInitICE() ? 1 : 0) | + (D->ensureEvaluatedStmt()->HasConstantDestruction ? 4 : 0)); + } + Record.AddStmt(D->getInit()); + } else { + Record.push_back(0); + } if (D->hasAttr() && D->getType()->getAsCXXRecordDecl()) { BlockVarCopyInit Init = Writer.Context->getBlockVarCopyInit(D); diff --git a/clang/test/CodeGen/enable_if.c b/clang/test/CodeGen/enable_if.c index 1d830ae68f54e..5e9f904fdd3f4 100644 --- a/clang/test/CodeGen/enable_if.c +++ b/clang/test/CodeGen/enable_if.c @@ -65,19 +65,19 @@ void test3() { } -enum { TRUEFACTS = 1 }; +const int TRUEFACTS = 1; void qux(int m) __attribute__((overloadable, enable_if(1, ""), enable_if(TRUEFACTS, ""))); void qux(int m) __attribute__((overloadable, enable_if(1, ""))); // CHECK-LABEL: define void @test4 void test4() { - // CHECK: store void (i32)* @_Z3quxUa9enable_ifIXLi1EEXLi1EEEi + // CHECK: store void (i32)* @_Z3quxUa9enable_ifIXLi1EEXL_Z9TRUEFACTSEEEi void (*p)(int) = qux; - // CHECK: store void (i32)* @_Z3quxUa9enable_ifIXLi1EEXLi1EEEi + // CHECK: store void (i32)* @_Z3quxUa9enable_ifIXLi1EEXL_Z9TRUEFACTSEEEi void (*p2)(int) = &qux; - // CHECK: store void (i32)* @_Z3quxUa9enable_ifIXLi1EEXLi1EEEi + // CHECK: store void (i32)* @_Z3quxUa9enable_ifIXLi1EEXL_Z9TRUEFACTSEEEi p = qux; - // CHECK: store void (i32)* @_Z3quxUa9enable_ifIXLi1EEXLi1EEEi + // CHECK: store void (i32)* @_Z3quxUa9enable_ifIXLi1EEXL_Z9TRUEFACTSEEEi p = &qux; } diff --git a/clang/test/OpenMP/threadprivate_codegen.cpp b/clang/test/OpenMP/threadprivate_codegen.cpp index 2ef6522760abd..a46bb69070155 100644 --- a/clang/test/OpenMP/threadprivate_codegen.cpp +++ b/clang/test/OpenMP/threadprivate_codegen.cpp @@ -598,8 +598,8 @@ int main() { // CHECK-DEBUG-NEXT: [[RES:%.*]] = load [[INT]], [[INT]]* [[RES_ADDR]] // CHECK-DEBUG-NEXT: [[ADD:%.*]] = add {{.*}} [[INT]] [[RES]], [[ST_INT_ST_VAL]] // CHECK-DEBUG-NEXT: store [[INT]] [[ADD]], [[INT]]* [[RES:.+]] - // - // CHECK-TLS: [[ST_INT_ST_VAL:%.*]] = load i32, i32* [[ST_INT_ST_ADDR:[^,]+]] + // CHECK-TLS: [[ST_INT_ST_ADDR:%.*]] = call i32* [[ST_INT_ST_TLS_INITD:[^,]+]] + // CHECK-TLS-NEXT: [[ST_INT_ST_VAL:%.*]] = load i32, i32* [[ST_INT_ST_ADDR]] // CHECK-TLS-NEXT: [[RES:%.*]] = load i32, i32* [[RES_ADDR]] // CHECK-TLS-NEXT: [[ADD:%.*]] = add {{.*}} i32 [[RES]], [[ST_INT_ST_VAL]] // CHECK-TLS-NEXT: store i32 [[ADD]], i32* [[RES_ADDR]] @@ -620,8 +620,8 @@ int main() { // CHECK-DEBUG-NEXT: [[RES:%.*]] = load [[INT]], [[INT]]* [[RES_ADDR]] // CHECK-DEBUG-NEXT: [[ADD:%.*]] = add {{.*}} [[INT]] [[RES]], [[FLOAT_TO_INT_CONV]] // CHECK-DEBUG-NEXT: store [[INT]] [[ADD]], [[INT]]* [[RES:.+]] - // - // CHECK-TLS: [[ST_FLOAT_ST_VAL:%.*]] = load float, float* [[ST_FLOAT_ST_ADDR:[^,]+]] + // CHECK-TLS: [[ST_FLOAT_ST_ADDR:%.*]] = call float* [[ST_FLOAT_ST_TLS_INITD:[^,]+]] + // CHECK-TLS-NEXT: [[ST_FLOAT_ST_VAL:%.*]] = load float, float* [[ST_FLOAT_ST_ADDR]] // CHECK-TLS-NEXT: [[FLOAT_TO_INT_CONV:%.*]] = fptosi float [[ST_FLOAT_ST_VAL]] to i32 // CHECK-TLS-NEXT: [[RES:%.*]] = load i32, i32* [[RES_ADDR]] // CHECK-TLS-NEXT: [[ADD:%.*]] = add {{.*}} i32 [[RES]], [[FLOAT_TO_INT_CONV]] @@ -727,14 +727,14 @@ int main() { // CHECK-TLS: call void [[ARR_X_TLS_INIT]] // CHECK-TLS: ret [2 x [3 x [[S1]]]]* [[ARR_X]] // CHECK-TLS: } -// -// -// -// -// -// -// -// +// CHECK-TLS: define {{.*}} i32* [[ST_INT_ST_TLS_INITD]] {{#[0-9]+}} comdat { +// CHECK-TLS-NOT: call +// CHECK-TLS: ret i32* [[ST_INT_ST]] +// CHECK-TLS: } +// CHECK-TLS: define {{.*}} float* [[ST_FLOAT_ST_TLS_INITD]] {{#[0-9]+}} comdat { +// CHECK-TLS-NOT: call +// CHECK-TLS: ret float* [[ST_FLOAT_ST]] +// CHECK-TLS: } // CHECK-TLS: define {{.*}} [[S4]]* [[ST_S4_ST_TLS_INITD]] {{#[0-9]+}} comdat { // CHECK-TLS: call void [[ST_S4_ST_TLS_INIT]] // CHECK-TLS: ret [[S4]]* [[ST_S4_ST]] @@ -874,8 +874,8 @@ int foobar() { // CHECK-DEBUG-NEXT: [[RES:%.*]] = load [[INT]], [[INT]]* [[RES_ADDR]] // CHECK-DEBUG-NEXT: [[ADD:%.*]] = add {{.*}} [[INT]] [[RES]], [[ST_INT_ST_VAL]] // CHECK-DEBUG-NEXT: store [[INT]] [[ADD]], [[INT]]* [[RES:.+]] - // - // OMP45-TLS: [[ST_INT_ST_VAL:%.*]] = load [[INT]], [[INT]]* [[ST_INT_ST_ADDR:[^,]+]] + // OMP45-TLS: [[ST_INT_ST_ADDR:%.*]] = call i32* [[ST_INT_ST_TLS_INITD]] + // OMP45-TLS-NEXT: [[ST_INT_ST_VAL:%.*]] = load [[INT]], [[INT]]* [[ST_INT_ST_ADDR]] // OMP45-TLS-NEXT: [[RES:%.*]] = load [[INT]], [[INT]]* [[RES_ADDR]] // OMP45-TLS-NEXT: [[ADD:%.*]] = add {{.*}} [[INT]] [[RES]], [[ST_INT_ST_VAL]] // OMP45-TLS-NEXT: store [[INT]] [[ADD]], [[INT]]* [[RES:.+]] @@ -896,8 +896,8 @@ int foobar() { // CHECK-DEBUG-NEXT: [[RES:%.*]] = load [[INT]], [[INT]]* [[RES_ADDR]] // CHECK-DEBUG-NEXT: [[ADD:%.*]] = add {{.*}} [[INT]] [[RES]], [[FLOAT_TO_INT_CONV]] // CHECK-DEBUG-NEXT: store [[INT]] [[ADD]], [[INT]]* [[RES:.+]] - // - // OMP45-TLS: [[ST_FLOAT_ST_VAL:%.*]] = load float, float* [[ST_FLOAT_ST_ADDR:[^,]+]] + // OMP45-TLS: [[ST_FLOAT_ST_ADDR:%.*]] = call float* [[ST_FLOAT_ST_TLS_INITD]] + // OMP45-TLS-NEXT: [[ST_FLOAT_ST_VAL:%.*]] = load float, float* [[ST_FLOAT_ST_ADDR]] // OMP45-TLS-NEXT: [[FLOAT_TO_INT_CONV:%.*]] = fptosi float [[ST_FLOAT_ST_VAL]] to [[INT]] // OMP45-TLS-NEXT: [[RES:%.*]] = load [[INT]], [[INT]]* [[RES_ADDR]] // OMP45-TLS-NEXT: [[ADD:%.*]] = add {{.*}} [[INT]] [[RES]], [[FLOAT_TO_INT_CONV]] diff --git a/clang/test/Sema/enable_if.c b/clang/test/Sema/enable_if.c index d96a53d94e1e1..b4bb2ecd0d202 100644 --- a/clang/test/Sema/enable_if.c +++ b/clang/test/Sema/enable_if.c @@ -5,7 +5,7 @@ typedef int mode_t; typedef unsigned long size_t; -enum { TRUE = 1 }; +const int TRUE = 1; int open(const char *pathname, int flags) __attribute__((enable_if(!(flags & O_CREAT), "must specify mode when using O_CREAT"))) __attribute__((overloadable)); // expected-note{{candidate disabled: must specify mode when using O_CREAT}} int open(const char *pathname, int flags, mode_t mode) __attribute__((overloadable)); // expected-note{{candidate function not viable: requires 3 arguments, but 2 were provided}} @@ -114,7 +114,7 @@ void f(int n) __attribute__((enable_if(unresolvedid, "chosen when 'unresolvedid' int global; void f(int n) __attribute__((enable_if(global == 0, "chosen when 'global' is zero"))); // expected-error{{'enable_if' attribute expression never produces a constant expression}} // expected-note{{subexpression not valid in a constant expression}} -enum { cst = 7 }; +const int cst = 7; void return_cst(void) __attribute__((overloadable)) __attribute__((enable_if(cst == 7, "chosen when 'cst' is 7"))); void test_return_cst() { return_cst(); } diff --git a/clang/test/SemaCXX/constant-expression.cpp b/clang/test/SemaCXX/constant-expression.cpp index a5e571a97eb2e..2bec62f46b662 100644 --- a/clang/test/SemaCXX/constant-expression.cpp +++ b/clang/test/SemaCXX/constant-expression.cpp @@ -98,9 +98,9 @@ void diags(int n) { namespace IntOrEnum { const int k = 0; - const int &p = k; // expected-note {{declared here}} + const int &p = k; template struct S {}; - S

s; // expected-error {{not an integral constant expression}} expected-note {{read of variable 'p' of non-integral, non-enumeration type 'const int &'}} + S

s; // expected-error {{not an integral constant expression}} } extern const int recurse1; diff --git a/clang/test/SemaCXX/i-c-e-cxx.cpp b/clang/test/SemaCXX/i-c-e-cxx.cpp index da9be1229a549..a09ff5ac8d9f5 100644 --- a/clang/test/SemaCXX/i-c-e-cxx.cpp +++ b/clang/test/SemaCXX/i-c-e-cxx.cpp @@ -19,6 +19,9 @@ void f() { int a() { const int t=t; // expected-note {{declared here}} +#if __cplusplus <= 199711L + // expected-note@-2 {{read of object outside its lifetime}} +#endif switch(1) { // do not warn that 1 is not a case value; // 't' might have been expected to evalaute to 1