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-rw-r--r--clang/lib/Sema/SemaConcept.cpp4
-rw-r--r--clang/lib/Sema/SemaDecl.cpp11
-rw-r--r--clang/lib/Sema/SemaOverload.cpp13
-rw-r--r--clang/lib/Sema/SemaTemplate.cpp13
-rw-r--r--clang/lib/Sema/SemaTemplateInstantiate.cpp6
-rw-r--r--clang/lib/Sema/SemaTemplateInstantiateDecl.cpp18
6 files changed, 39 insertions, 26 deletions
diff --git a/clang/lib/Sema/SemaConcept.cpp b/clang/lib/Sema/SemaConcept.cpp
index 11d2d5c..999e302c 100644
--- a/clang/lib/Sema/SemaConcept.cpp
+++ b/clang/lib/Sema/SemaConcept.cpp
@@ -1049,6 +1049,7 @@ ExprResult ConstraintSatisfactionChecker::Evaluate(
case NormalizedConstraint::ConstraintKind::Compound:
return Evaluate(static_cast<const CompoundConstraint &>(Constraint), MLTAL);
}
+ llvm_unreachable("Unknown ConstraintKind enum");
}
static bool CheckConstraintSatisfaction(
@@ -2141,6 +2142,7 @@ bool SubstituteParameterMappings::substitute(NormalizedConstraint &N) {
return substitute(Compound.getRHS());
}
}
+ llvm_unreachable("Unknown ConstraintKind enum");
}
} // namespace
@@ -2561,7 +2563,6 @@ FormulaType SubsumptionChecker::Normalize(const NormalizedConstraint &NC) {
};
switch (NC.getKind()) {
-
case NormalizedConstraint::ConstraintKind::Atomic:
return {{find(&static_cast<const AtomicConstraint &>(NC))}};
@@ -2601,6 +2602,7 @@ FormulaType SubsumptionChecker::Normalize(const NormalizedConstraint &NC) {
return Res;
}
}
+ llvm_unreachable("Unknown ConstraintKind enum");
}
void SubsumptionChecker::AddUniqueClauseToFormula(Formula &F, Clause C) {
diff --git a/clang/lib/Sema/SemaDecl.cpp b/clang/lib/Sema/SemaDecl.cpp
index 0069b08..6eaf7b9 100644
--- a/clang/lib/Sema/SemaDecl.cpp
+++ b/clang/lib/Sema/SemaDecl.cpp
@@ -11041,17 +11041,6 @@ Sema::ActOnFunctionDeclarator(Scope *S, Declarator &D, DeclContext *DC,
<< CUDA().getConfigureFuncName();
Context.setcudaConfigureCallDecl(NewFD);
}
-
- // Variadic functions, other than a *declaration* of printf, are not allowed
- // in device-side CUDA code, unless someone passed
- // -fcuda-allow-variadic-functions.
- if (!getLangOpts().CUDAAllowVariadicFunctions && NewFD->isVariadic() &&
- (NewFD->hasAttr<CUDADeviceAttr>() ||
- NewFD->hasAttr<CUDAGlobalAttr>()) &&
- !(II && II->isStr("printf") && NewFD->isExternC() &&
- !D.isFunctionDefinition())) {
- Diag(NewFD->getLocation(), diag::err_variadic_device_fn);
- }
}
MarkUnusedFileScopedDecl(NewFD);
diff --git a/clang/lib/Sema/SemaOverload.cpp b/clang/lib/Sema/SemaOverload.cpp
index b870114..5657dfe 100644
--- a/clang/lib/Sema/SemaOverload.cpp
+++ b/clang/lib/Sema/SemaOverload.cpp
@@ -4413,14 +4413,23 @@ CompareImplicitConversionSequences(Sema &S, SourceLocation Loc,
Result = CompareStandardConversionSequences(S, Loc,
ICS1.Standard, ICS2.Standard);
else if (ICS1.isUserDefined()) {
+ // With lazy template loading, it is possible to find non-canonical
+ // FunctionDecls, depending on when redecl chains are completed. Make sure
+ // to compare the canonical decls of conversion functions. This avoids
+ // ambiguity problems for templated conversion operators.
+ const FunctionDecl *ConvFunc1 = ICS1.UserDefined.ConversionFunction;
+ if (ConvFunc1)
+ ConvFunc1 = ConvFunc1->getCanonicalDecl();
+ const FunctionDecl *ConvFunc2 = ICS2.UserDefined.ConversionFunction;
+ if (ConvFunc2)
+ ConvFunc2 = ConvFunc2->getCanonicalDecl();
// User-defined conversion sequence U1 is a better conversion
// sequence than another user-defined conversion sequence U2 if
// they contain the same user-defined conversion function or
// constructor and if the second standard conversion sequence of
// U1 is better than the second standard conversion sequence of
// U2 (C++ 13.3.3.2p3).
- if (ICS1.UserDefined.ConversionFunction ==
- ICS2.UserDefined.ConversionFunction)
+ if (ConvFunc1 == ConvFunc2)
Result = CompareStandardConversionSequences(S, Loc,
ICS1.UserDefined.After,
ICS2.UserDefined.After);
diff --git a/clang/lib/Sema/SemaTemplate.cpp b/clang/lib/Sema/SemaTemplate.cpp
index dcf2876..419f3e1 100644
--- a/clang/lib/Sema/SemaTemplate.cpp
+++ b/clang/lib/Sema/SemaTemplate.cpp
@@ -3822,14 +3822,19 @@ QualType Sema::CheckTemplateIdType(ElaboratedTypeKeyword Keyword,
AliasTemplate->getTemplateParameters()->getDepth());
LocalInstantiationScope Scope(*this);
- InstantiatingTemplate Inst(
- *this, /*PointOfInstantiation=*/TemplateLoc,
- /*Entity=*/AliasTemplate,
- /*TemplateArgs=*/TemplateArgLists.getInnermost());
// Diagnose uses of this alias.
(void)DiagnoseUseOfDecl(AliasTemplate, TemplateLoc);
+ // FIXME: The TemplateArgs passed here are not used for the context note,
+ // nor they should, because this note will be pointing to the specialization
+ // anyway. These arguments are needed for a hack for instantiating lambdas
+ // in the pattern of the alias. In getTemplateInstantiationArgs, these
+ // arguments will be used for collating the template arguments needed to
+ // instantiate the lambda.
+ InstantiatingTemplate Inst(*this, /*PointOfInstantiation=*/TemplateLoc,
+ /*Entity=*/AliasTemplate,
+ /*TemplateArgs=*/CTAI.SugaredConverted);
if (Inst.isInvalid())
return QualType();
diff --git a/clang/lib/Sema/SemaTemplateInstantiate.cpp b/clang/lib/Sema/SemaTemplateInstantiate.cpp
index 1f762ca..7b05e4c 100644
--- a/clang/lib/Sema/SemaTemplateInstantiate.cpp
+++ b/clang/lib/Sema/SemaTemplateInstantiate.cpp
@@ -1271,6 +1271,12 @@ void Sema::PrintInstantiationStack(InstantiationContextDiagFuncRef DiagFunc) {
PDiag(diag::note_building_deduction_guide_here));
break;
case CodeSynthesisContext::TypeAliasTemplateInstantiation:
+ // Workaround for a workaround: don't produce a note if we are merely
+ // instantiating some other template which contains this alias template.
+ // This would be redundant either with the error itself, or some other
+ // context note attached to it.
+ if (Active->NumTemplateArgs == 0)
+ break;
DiagFunc(Active->PointOfInstantiation,
PDiag(diag::note_template_type_alias_instantiation_here)
<< cast<TypeAliasTemplateDecl>(Active->Entity)
diff --git a/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp b/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
index e2dc703..3819f77 100644
--- a/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
+++ b/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
@@ -1580,17 +1580,19 @@ Decl *TemplateDeclInstantiator::InstantiateTypeAliasTemplateDecl(
if (!InstParams)
return nullptr;
- TypeAliasDecl *Pattern = D->getTemplatedDecl();
- Sema::InstantiatingTemplate InstTemplate(
- SemaRef, D->getBeginLoc(), D,
- D->getTemplateDepth() >= TemplateArgs.getNumLevels()
- ? ArrayRef<TemplateArgument>()
- : (TemplateArgs.begin() + TemplateArgs.getNumLevels() - 1 -
- D->getTemplateDepth())
- ->Args);
+ // FIXME: This is a hack for instantiating lambdas in the pattern of the
+ // alias. We are not really instantiating the alias at its template level,
+ // that only happens in CheckTemplateId, this is only for outer templates
+ // which contain it. In getTemplateInstantiationArgs, the template arguments
+ // used here would be used for collating the template arguments needed to
+ // instantiate the lambda. Pass an empty argument list, so this workaround
+ // doesn't get confused if there is an outer alias being instantiated.
+ Sema::InstantiatingTemplate InstTemplate(SemaRef, D->getBeginLoc(), D,
+ ArrayRef<TemplateArgument>());
if (InstTemplate.isInvalid())
return nullptr;
+ TypeAliasDecl *Pattern = D->getTemplatedDecl();
TypeAliasTemplateDecl *PrevAliasTemplate = nullptr;
if (getPreviousDeclForInstantiation<TypedefNameDecl>(Pattern)) {
DeclContext::lookup_result Found = Owner->lookup(Pattern->getDeclName());
generated by cgit v1.1 at 2025-10-06 14:35:17 +0000