Give external linkage and mangling to lambdas inside inline variables and variable templates.
This implements the proposed approach in https://github.com/itanium-cxx-abi/cxx-abi/issues/33
This reinstates r313827, reverted in r313856, with a fix for the 'out-of-bounds
enumeration value' ubsan error in that change.
llvm-svn: 313955
diff --git a/clang/lib/AST/ItaniumMangle.cpp b/clang/lib/AST/ItaniumMangle.cpp
index a9c5ab2..ef54ad5 100644
--- a/clang/lib/AST/ItaniumMangle.cpp
+++ b/clang/lib/AST/ItaniumMangle.cpp
@@ -1691,10 +1691,16 @@
// to emit that last part of the prefix here.
if (Decl *Context = Lambda->getLambdaContextDecl()) {
if ((isa<VarDecl>(Context) || isa<FieldDecl>(Context)) &&
- Context->getDeclContext()->isRecord()) {
+ !isa<ParmVarDecl>(Context)) {
+ // FIXME: 'inline auto [a, b] = []{ return ... };' does not get a
+ // reasonable mangling here.
if (const IdentifierInfo *Name
= cast<NamedDecl>(Context)->getIdentifier()) {
mangleSourceName(Name);
+ const TemplateArgumentList *TemplateArgs = nullptr;
+ if (const TemplateDecl *TD =
+ isTemplate(cast<NamedDecl>(Context), TemplateArgs))
+ mangleTemplateArgs(*TemplateArgs);
Out << 'M';
}
}