https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70319
Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:
What |Removed |Added
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Component|middle-end |target
--- Comment #10 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
> I think that the bswapdi2 pattern is incorrect, it must contain an explicit
> clobber of the source register in addition to the constraint.
That's wrong, it must simply use a scratch register.
