PR12848: When emitting a local variable declared 'constexpr', always initialize it with a store or a memcpy, not by emitting the initializer expression. This is not required for correctness, but more closely aligns with people's expectations, and is cheap (since we've already evaluated the initializer).


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@183082 91177308-0d34-0410-b5e6-96231b3b80d8