[RTEMS Project] #2416: Beaglebone: missing clobber in inline assembly.

[RTEMS trac]

#2416: Beaglebone: missing clobber in inline assembly.
-------------------------+--------------------
 Reporter:  marcos.diaz  |      Owner:
     Type:  defect       |     Status:  new
 Priority:  normal       |  Milestone:  4.11.1
Component:  General      |    Version:  4.11
 Severity:  normal       |   Keywords:
-------------------------+--------------------
 flush_data_cache uses R0 directly but doesn't list it as a clobbered
 register.
 Compiling with -O3 made this code break, since the function that calls
 flush_data_cache
 already uses r0.

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Ticket URL: <http://devel.rtems.org/ticket/2416>
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