http://gcc.gnu.org/bugzilla/show_bug.cgi?id=61021
--- Comment #3 from Sandra Loosemore <sandra at codesourcery dot com> --- Patch sent to llvm-commits. For now I can unblock my work by applying the patch locally, but this isn't something we'd want to carry around permanently and have to apply to future versions of GCC, especially if it is the wrong way to solve the problem.
