[Bug target/64600] arm-rtems ICE on valid code (-mcpu=xscale)

[joel at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64600

--- Comment #3 from Joel Sherrill <joel at gcc dot gnu.org> ---
(In reply to Joel Sherrill from comment #1)
> Created attachment 34450 [details]
> Preprocessed RTEMS source which produces the error

Attached test case compiles at -Os but not -O1 or -O2. 
-O2 without -mcpu=xscale also works.

Compiles find with end of 4.9 branch

arm-rtems4.11-gcc (GCC) 4.9.3 20150104 (prerelease)