DR1472: A reference isn't odr-used if it has preceding initialization,
initialized by a reference constant expression.

Our odr-use modeling still needs work here: we don't yet implement the 'set of
potential results of an expression' DR.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166361 91177308-0d34-0410-b5e6-96231b3b80d8
6 files changed