[Bug target/67383] reload_cse_simplify_operands fails on ARMV7-M

[david.cock at inf dot ethz.ch]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67383

--- Comment #1 from david.cock at inf dot ethz.ch ---
Fails in exactly the same manner on the following versions:

arm-none-eabi-gcc (GNU Tools for ARM Embedded Processors) 4.8.4 20140725 
(release) [ARM/embedded-4_8-branch revision 213147]
arm-none-eabi-gcc (GNU Tools for ARM Embedded Processors) 4.9.3 20150529
(release) [ARM/embedded-4_9-branch revision 224288]