[Bug tree-optimization/88598] simplification of multiplication by 1 or 0 fails

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88598

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |jakub at gcc dot gnu.org,
                   |                            |rguenth at gcc dot gnu.org

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
I think I had a patch for that kind of thing, see
https://gcc.gnu.org/ml/gcc-patches/2017-04/msg01559.html , but Richi wanted to
do it differently if I remember well.  In any case, the patch didn't handle
RANGE_EXPRs efficiently, and it would be nice if we canonicalized ctors like {
1, 1, 1, 1, 1, 1, 1 } into { [0..6] = 1 }.