FranklandJack commented on code in PR #14519:
URL: https://github.com/apache/tvm/pull/14519#discussion_r1171436553
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python/tvm/topi/arm_cpu/depthwise_conv2d.py:
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@@ -394,7 +394,8 @@ def schedule_conv_out(out):
ci_outer, ci_inner = s[out].split(ci, 4)
s[out].vectorize(ci_inner)
s[out].unroll(ci_outer)
-
+ else:
+ s[out].vectorize(ci)
Review Comment:
Cool, thanks for the suggestion, I've added a filter on the split.
Yeah I think you are almost correct, for neon where vectors are `128` bits
and `sizeof(float) = 32`, then there will be `128 / 32 = 4` elements processed
in each vector operation. I think the backend will split the 8 element llvm
vectors into two 4 element vectors during legalization, so this isn't a problem.
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