[Bug target/70319] [6 Regression] FAIL: gcc.dg/sso/q2.c -O1 -fno-inline execution test

[ebotcazou at gcc dot gnu.org]

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.