[Bug target/89434] [7/8 Regression] wrong code with -Og and __builtin_mul_overflow()

[ktkachov at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89434

--- Comment #12 from ktkachov at gcc dot gnu.org ---
(In reply to Jakub Jelinek from comment #11)
> Created attachment 45839 [details]
> gcc9-pr89434.patch
> 
> I'm testing this separately.

This patch is preapproved for trunk if testing is successful.
Thanks.