Avoid producing mismatched comdats.
The problem was that given
template<typename T>
struct foo {
~foo() {}
};
template class foo<int>;
We would produce a alias, creating a comdat with D0 and D1, since the symbols
have to be weak. Another TU is not required to have a explicit template
instantiation definition or an explict template instantiation declaration and
for
template<typename T>
struct foo {
~foo() {}
};
foo<int> a;
we would produce a comdat with only one symbol in it.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@194520
91177308-0d34-0410-b5e6-
96231b3b80d8