[Bug tree-optimization/104406] SLP discovery doesn't use TWO_OPERAND nodes as seeds

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104406

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |DUPLICATE
             Status|UNCONFIRMED                 |RESOLVED

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
It is indeed.  The "trick" will be to start at _3 = COMPLEX_EXPR <..> like we
start at vector CONSTRUCTOR.  For the vectorization of the root stmt you'd
then simply do V_C_E<complex-type> (vector-result).

Now, for bigger vectors you'd have to start with multiple COMPLEX_EXPRs
which will unfortunately not be related in the SSA graph (so that's going
to be more difficult if desired).

*** This bug has been marked as a duplicate of bug 31485 ***