[Bug tree-optimization/93946] Bogus redundant store removal

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93946

--- Comment #17 from Richard Biener <rguenth at gcc dot gnu.org> ---
x86 splits large stores only after reload it seems.  Also on x86 GIMPLE
store-merging triggers, merging the two = 0 stores so I need -fno-store-merging
to
even get two stores there.  Still the issue in CSE is obviously there...