diff options
| -rw-r--r-- | lib/AST/ItaniumMangle.cpp | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/lib/AST/ItaniumMangle.cpp b/lib/AST/ItaniumMangle.cpp index 0cbf1f7bdf..9e647ad410 100644 --- a/lib/AST/ItaniumMangle.cpp +++ b/lib/AST/ItaniumMangle.cpp @@ -1369,9 +1369,16 @@ void CXXNameMangler::mangleType(TemplateName TN) { break; } - case TemplateName::SubstTemplateTemplateParm: - llvm_unreachable("mangling a substituted template name!"); - break; + case TemplateName::SubstTemplateTemplateParm: { + // Substituted template parameters are mangled as the substituted + // template. This will check for the substitution twice, which is + // fine, but we have to return early so that we don't try to *add* + // the substitution twice. + SubstTemplateTemplateParmStorage *subst + = TN.getAsSubstTemplateTemplateParm(); + mangleType(subst->getReplacement()); + return; + } case TemplateName::SubstTemplateTemplateParmPack: { SubstTemplateTemplateParmPackStorage *SubstPack |