llvm-project

64de378f - Make PrologEpilogInserter save/restore all callee saved registers

Make PrologEpilogInserter save/restore all callee saved registers in functions which call __builtin_unwind_init() __builtin_unwind_init() is an undocumented gcc intrinsic which has this effect, and is used in libgcc_eh. Goes part of the way toward fixing PR8541. Merged from r183984 Author: Derek Schuff <dschuff@google.com> Date: Fri Jun 14 16:15:29 2013 +0000 llvm-svn: 190578