[Bug rtl-optimization/55158] [4.8 Regression] segfault in schedule_region at -O3

[bernds at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55158

--- Comment #20 from Bernd Schmidt <bernds at gcc dot gnu.org> 2012-12-04 11:06:07 UTC ---
Created attachment 28873
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28873
Another patch

Here's another attempt, given that it seems to be the speculation code that
causes the problem.