Fix PR10168: don't warn for unused non-dependent variables in both the template definition and each instantiation.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133580 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaTemplateInstantiateDecl.cpp b/lib/Sema/SemaTemplateInstantiateDecl.cpp
index e78aa29..cc66ec6 100644
--- a/lib/Sema/SemaTemplateInstantiateDecl.cpp
+++ b/lib/Sema/SemaTemplateInstantiateDecl.cpp
@@ -415,8 +415,10 @@
!Var->isCXXForRangeDecl())
SemaRef.ActOnUninitializedDecl(Var, false);
- // Diagnose unused local variables.
- if (!Var->isInvalidDecl() && Owner->isFunctionOrMethod() && !Var->isUsed())
+ // Diagnose unused local variables with dependent types, where the diagnostic
+ // will have been deferred.
+ if (!Var->isInvalidDecl() && Owner->isFunctionOrMethod() && !Var->isUsed() &&
+ D->getType()->isDependentType())
SemaRef.DiagnoseUnusedDecl(Var);
return Var;