[Bug tree-optimization/14741] graphite with loop blocking and interchanging doesn't optimize a matrix multiplication loop

[spop at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=14741

--- Comment #37 from Sebastian Pop <spop at gcc dot gnu.org> ---
I think gcc should stop blocking initialization loops: it should only block a
loop when it contains more than two arrays, one array accessing non-contiguous
elements in memory, and another array accessing contiguous elements in memory.