http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47324
--- Comment #16 from Jack Howarth <howarth at nitro dot med.uc.edu> 2011-02-08 19:30:46 UTC --- It is interesting that llvm-gcc42 still uses DWARF2_FRAME_REG_OUT but I don't see anything like that in clang. Perhaps it would help if we asked about that issue with the llvm developers to see if they did anything special to transition off of DWARF2_FRAME_REG_OUT for clang?
