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[TOPI][OP] Support Faster-RCNN Proposal OP on CPU #4297
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In topi cpu, all vision ops are written with hybrid script instead of ir builder now. Should we keep things consistent?
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I tried to play Hybrid Script, but seems that we have some restriction so that I can not complete Hybrid Script replacement. For example:
It will report ValueError: Const range should start from a const and iterate const times
We should change into
This make code strange. Do we have any good ways to solve it?
Another thing is GPU / CPU relay on some common functions like
generate_anchor
/reg_bbox
and so on. Like ingenerate_anchor
, we usemath.floor
, hybrid script doesn't support. So if I have to move thegenerate_anchor
implementation intopredict_bbox_ir
, I meet one problem isfloor
. When I add itfrom tvm.intrin import floor
, I meet problemTypeError: 'FloatImm' object does not support indexing
, you could try this simple reproduce case:So must we use hybrid script? Seems hybrid script has some restriction. Welcome feedback to above problems, if we could solve, I will try to use hybrid script to continue.
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ping @kevinthesun @vinx13
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I met these issue too when I trying to migrate proposal CUDA op to hybrid, I think it’s okay to use ir builder for the time being