[Bug target/64405] [arm] Invalid codegenaration for ARMv3 and ARMv2

ktkachov at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Fri Jan 9 10:56:00 GMT 2015


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64405

ktkachov at gcc dot gnu.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |wrong-code
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2015-01-09
                 CC|                            |ktkachov at gcc dot gnu.org
     Ever confirmed|0                           |1
      Known to fail|                            |4.9.3, 5.0

--- Comment #2 from ktkachov at gcc dot gnu.org ---
Confirmed. The culprit seems to be output_return_instruction where the final
switch statement in the default case checks the architecture level to choose
whether to use bx or mov pc but in the ARM_FT_INTERWORKED case doesn't and just
emits bx lr.

This can be fixed easily I guess. I'll prepare a patch when I get some time/



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