[Relay] [Training] Fix ad for concatenate (#3729)
author雾雨魔理沙 <lolisa@marisa.moe>
Fri, 9 Aug 2019 19:40:16 +0000 (12:40 -0700)
committerThierry Moreau <moreau@uw.edu>
Fri, 9 Aug 2019 19:40:16 +0000 (12:40 -0700)
commit52fde8f773a9e13b905c014ed34abf9efc10fbc3
tree0aac0bb8ee944a5c751d101a157073606f1dd14e
parent4582722039c9ba6792fbb80dac45ae4ed5356e1c
[Relay] [Training] Fix ad for concatenate (#3729)

* reproduce error

* fix

* lint

* lint
python/tvm/relay/op/_tensor_grad.py
src/relay/ir/alpha_equal.cc
src/relay/pass/gradient.cc
tests/python/relay/test_pass_gradient.py