1e128aa0ee1bf41b7b8970ea0177b627585a72a8,chainer/functions/rnn/lstm.py,LSTMGrad,backward,#LSTMGrad#Any#Any#,186

Before Change

        gx = xp.empty_like(x)
        gc_next = xp.empty_like(c)
        ggc = xp.empty_like(ggc_prev)
        ggh = xp.empty_like(gh)

        gc_prev[batch:] = 0
        gc_next[batch:] = 0
        ggc[batch:] = ggc_prev[batch:]

After Change

        gh_is_none = gh is None
        if gc_is_none:
            gc = 0
        if gh_is_none:
            gh = 0
        if ggc_prev is None:
            ggc_prev = 0

        gc_prev = xp.empty_like(c_prev)

Instances