Initial version of optimization
Removed debug prints
Fix failing tests
Removed useless copies in unittest
Remove unused code
Support case where vector input is already an output of scan
Add tests and modify the optimization to cover new cases
Bug fix
Updated comments and fixed typos
Replace two transpose by a single one
Enable local_pool_dnn opt. It was disabled by mistake in a rebase.
Fix crash in python 3, due to difference in comprenhension list.
Fix test following fix to dnn pool opt
Add an example in the doc.
[DOC] fix link in doc
Removed comparisons with None
Make all dnn op do not check the broadcast flags.
Better hack to skip broadcast check on the GPU.
Add missing gpu reduce test over 4d. This highlight the pattern not supported.
small fix following code review