[Bug target/69857] gcc/config/arm/arm.c:15949: return in strange place ?

dcb314 at hotmail dot com gcc-bugzilla@gcc.gnu.org
Thu Feb 18 10:08:00 GMT 2016


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69857

--- Comment #4 from David Binderman <dcb314 at hotmail dot com> ---
(In reply to ktkachov from comment #3)
> Agree that gcc should warn here.
> As for the suspicious return itself, from what I can see it has the effect
> of overly restricting generation of the LDRD/STRD instructions on arm.
> Removing it is probably the right thing to do (and passes a first round of
> testing for me).
> 
> However, since the code it was blocking has not been tested so far (because
> it was never executed) we don't know what bugs (if any) are lurking there,
> so removing it should wait for GCC 7 at this point

What would be enough testing to ensure the change would get into gcc 6 ?

Maybe a gcc bootstrap build or a linux kernel build.
Maybe a full build of all the packages in Fedora / OpenSuse / Debian / Ubuntu.

I don't have ARM here, but this might be enough excuse to get
access to the compile farm or to some other ARM server.


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