[Bug target/47908] attribute((optimize(2))) causes ICE in m68k_sched_issue_rate

[mikpe at it dot uu.se]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47908

--- Comment #1 from Mikael Pettersson <mikpe at it dot uu.se> 2011-02-26 
21:04:19 UTC ---
Other test cases that fail for the same reason include gcc.dg/pr37106-1.c,
gcc.dg/pr43562.c, and gcc.dg/pr43564.c.