http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47324
--- Comment #40 from Jack Howarth <howarth at nitro dot med.uc.edu> 2011-02-10 18:48:07 UTC --- What happens if you replace all the instances of DWARF2_FRAME_REG_OUT in the proposed patch with a new DWARF2_FRAME_REG_OUT_EH macro that is a no-op on anything but i386 darwin (where is defined to DWARF2_FRAME_REG_OUT)?