Keep track of function template specializations, to eliminate
redundant, implicit instantiations of function templates and provide a
place where we can hang function template specializations.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@74454 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/DeclTemplate.cpp b/lib/AST/DeclTemplate.cpp
index 165672d..f1bd1b6 100644
--- a/lib/AST/DeclTemplate.cpp
+++ b/lib/AST/DeclTemplate.cpp
@@ -81,11 +81,36 @@
DeclContext *DC,
SourceLocation L,
DeclarationName Name,
- TemplateParameterList *Params,
+ TemplateParameterList *Params,
NamedDecl *Decl) {
return new (C) FunctionTemplateDecl(DC, L, Name, Params, Decl);
}
+void FunctionTemplateDecl::Destroy(ASTContext &C) {
+ if (Common *CommonPtr = CommonOrPrev.dyn_cast<Common*>()) {
+ for (llvm::FoldingSet<FunctionTemplateSpecializationInfo>::iterator
+ Spec = CommonPtr->Specializations.begin(),
+ SpecEnd = CommonPtr->Specializations.end();
+ Spec != SpecEnd; ++Spec)
+ C.Deallocate(&*Spec);
+ }
+
+ Decl::Destroy(C);
+}
+
+FunctionTemplateDecl::Common *FunctionTemplateDecl::getCommonPtr() {
+ // Find the first declaration of this function template.
+ FunctionTemplateDecl *First = this;
+ while (First->getPreviousDeclaration())
+ First = First->getPreviousDeclaration();
+
+ if (First->CommonOrPrev.isNull()) {
+ // FIXME: Allocate with the ASTContext
+ First->CommonOrPrev = new Common;
+ }
+ return First->CommonOrPrev.get<Common*>();
+}
+
//===----------------------------------------------------------------------===//
// ClassTemplateDecl Implementation
//===----------------------------------------------------------------------===//