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[mlir][tosa] Add tosa.resize lowering to linalg generic
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Authored by rsuderman on Apr 21 2021, 7:14 PM.

Details

Summary

Includes tests and implementation for both integer and floating point values.
Both nearest neighbor and bilinear interpolation is included.

Diff Detail

Event Timeline

rsuderman created this revision.Apr 21 2021, 7:14 PM
rsuderman requested review of this revision.Apr 21 2021, 7:14 PM
silvas accepted this revision.Apr 22 2021, 1:43 PM

LGTM. The code looks reasonable, assuming you verified the outputs are correct on a few cases (always tricky to statically inspect the code).

please wait for @sjarus who is more familiar with the spec of this op for a second look, due to the complexity

This revision is now accepted and ready to land.Apr 22 2021, 1:43 PM

This seems to look fine functionally, modulo the inline aesthetic comments.

Tip: in case you also want to see an implementation of TOSA ops that looks C-like, please take a look at the reference model source: https://git.mlplatform.org/tosa/reference_model.git , e.g. src/ops/image.cc in this case.

mlir/lib/Conversion/TosaToLinalg/TosaToLinalg.cpp
1278–1283

This block is mode invariant .

1318–1326

I know these are equivalent to the xPred/yPred approach in Nearest Neighbor mode, but does it make sense to make this common code ? In case additional modes are defined that leverage the same logic, it would avoid further duplication of the same intent.

Fixed for suraj@ comments

rsuderman marked 2 inline comments as done.Apr 23 2021, 12:39 PM
rsuderman added inline comments.
mlir/lib/Conversion/TosaToLinalg/TosaToLinalg.cpp
1318–1326

There are a few tweaks I could do but with the clamp helper its about as minimal overlap as we are going to get (especially because nearest needs to do its wrapping separately). Overall I expect if more sampling methods are introduced we will likely produce different converters for each configuration.

rsuderman marked an inline comment as done.Apr 23 2021, 12:49 PM
This revision was landed with ongoing or failed builds.Apr 23 2021, 12:50 PM
This revision was automatically updated to reflect the committed changes.