Implement most of N3638 (return type deduction for normal functions).
Missing (somewhat ironically) is support for the new deduction rules
in lambda functions, plus PCH support for return type patching.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181108 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaTemplateInstantiateDecl.cpp b/lib/Sema/SemaTemplateInstantiateDecl.cpp
index ee47169..688a736 100644
--- a/lib/Sema/SemaTemplateInstantiateDecl.cpp
+++ b/lib/Sema/SemaTemplateInstantiateDecl.cpp
@@ -2868,13 +2868,15 @@
return;
}
- // C++0x [temp.explicit]p9:
- // Except for inline functions, other explicit instantiation declarations
- // have the effect of suppressing the implicit instantiation of the entity
- // to which they refer.
+ // C++1y [temp.explicit]p10:
+ // Except for inline functions, declarations with types deduced from their
+ // initializer or return value, and class template specializations, other
+ // explicit instantiation declarations have the effect of suppressing the
+ // implicit instantiation of the entity to which they refer.
if (Function->getTemplateSpecializationKind()
== TSK_ExplicitInstantiationDeclaration &&
- !PatternDecl->isInlined())
+ !PatternDecl->isInlined() &&
+ !PatternDecl->getResultType()->isUndeducedType())
return;
if (PatternDecl->isInlined())