[Bug tree-optimization/128166] (truncate)((extend)a * (extend)b) -> a * b

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=128166

Drea Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |testsuite-fail

--- Comment #1 from Drea Pinski <pinskia at gcc dot gnu.org> ---
Note this is only well defined for unsigned.  For signed types, overflow has to
be taken into account.  For the testcase failure, unsigned is enough to handle
here.