Do not diagnose unused-parameter errors in template instantiations. We
will already have done so when the template is declared.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101838 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/Sema.h b/lib/Sema/Sema.h
index a95d082..0535923 100644
--- a/lib/Sema/Sema.h
+++ b/lib/Sema/Sema.h
@@ -853,12 +853,18 @@
if (Diags.getDiagnosticLevel(diag::warn_unused_parameter) ==
Diagnostic::Ignored)
return;
+
+ // Don't diagnose unused-parameter errors in template instantiations; we
+ // will already have done so in the template itself.
+ if (!ActiveTemplateInstantiations.empty())
+ return;
for (; Param != ParamEnd; ++Param) {
if (!(*Param)->isUsed() && (*Param)->getDeclName() &&
- !(*Param)->template hasAttr<UnusedAttr>())
+ !(*Param)->template hasAttr<UnusedAttr>()) {
Diag((*Param)->getLocation(), diag::warn_unused_parameter)
<< (*Param)->getDeclName();
+ }
}
}