[Bug tree-optimization/60280] [4.9 Regression] gcc.target/arm/ivopts.c and gcc.target/arm/ivopts-2.c failed caused by preserving loop structure.

[amker.cheng at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60280

--- Comment #3 from bin.cheng <amker.cheng at gmail dot com> ---
I think 4_8 is ok for this case.  At least it doesn't have
http://gcc.gnu.org/ml/gcc-patches/2013-04/msg01530.html committed if I was
right.