[Tracking issue] Quantized TFLite operators

[leandron]

As part of #9165, we recently enabled support for quantized operators in the TFLite frontend "unary element-wise" function, that does generic support for a few operators.

That opens the door for more operators to be supported easily, just pending the addition of tests and logically unlocking the conditional block that is keeping the quantised version of the operator to be unsupported. See the example as implemented in #9165.

This is a tracking issue for new unary element-wise operators to be supported:

• GREATER [TFLite] Support quantized GREATER op in TFLite frontend #12754 @dchauhan-arm
• EQUAL [TFLite] Support quantized EQUAL op in TFLite frontend #11520 @dchauhan-arm
• CEIL [TFLite] Quantized unary elemwise ops #10566 by @leeexyz
• ROUND [TFLite] Quantized unary elemwise ops #10566 by @leeexyz
• FLOOR [TFLite] Quantized unary elemwise ops #10566 by @leeexyz
• EXP [TFLite] Quantized unary elemwise ops #10566 by @leeexyz
• LOG [TFLite] Quantized unary elemwise ops #10566 by @leeexyz
• SIN added tests for quantized tflite sin operator #9478 by @onkar-sima-ai
• TAN [TFLite] Quantized unary elemwise ops #10566 by @leeexyz
• COS [TFLite] Quantized unary elemwise ops #10566 by @leeexyz
• SQRT Support quantised SQRT operator in TFLite #9258 by @elinx
• RSQRT Support quantised RSQRT operator in TFLite #9165 by @ophirfrish
• NEG Support quantized NEG operator in TFLite frontend #9404 by @ophirfrish

For each operator above, there are actions to be taken:

1. Remove the conditional block if self.is_quantized(op): ...
2. Implement unit tests
3. ask any committer in the project to update this issue, reflecting the PR to support the operators on the list above

#9165 can be used as an example.

Resources:

• TFlite frontend: https://github.com/apache/tvm/blob/main/python/tvm/relay/frontend/tflite.py

[onkar-sima-ai]

Hi @leandron can you please update this issue and if possible review the PR for qunatized SIN operator?
I have followed the instruction in this issue to write the test cases.

Please let me know if I need to do any changes.
Thanks for posting, Happy to contribute.

[leandron]

Hi @leandron can you please update this issue and if possible review the PR for qunatized SIN operator? I have followed the instruction in this issue to write the test cases.

Please let me know if I need to do any changes. Thanks for posting, Happy to contribute.

Done! thanks @onkar-sima-ai

[psigillito]

Hi @leandron I am interested in getting to know the source code better. Is the list of operators up to date? I might try implementing the GREATER operator using #9165 as a template. Thanks!

[leandron]

Hi @leandron I am interested in getting to know the source code better. Is the list of operators up to date? I might try implementing the GREATER operator using #9165 as a template. Thanks!

Sorry I missed your message. I've just updated the list of operator.
To your question: yes, you can use #9165 as a template.

[lhutton1]

Thanks @dchauhan-arm @leeexyz @onkar-sima-ai @elinx @ophirfrish for the contributions towards this effort! Closing as it is now complete.