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SKEEP-008: Precision and encoding conversion (Draft) - #1434
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Proposal for the mixed-precision DSL stubs (dense<TLayer>/stage<TStage>, six TODO()s in NetworkBuilder.kt) and TensorStorage.repackTo, which throws for every encoding change. The DSL takes the dtype as a value behind one PrecisionBoundary module built on TensorOps.convert; repackTo stays lossless and a new requantizeTo does the lossy direction through Requantizers. The unused MixedPrecisionModule scaffold is retired. Tracking issue #1433; the stub allowlist now points at it. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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CHANGELOG [0.62.1] - 2026-10-21 over everything develop holds since 0.62.0: the FFM Q8_0/Q4_0/Q5_0/Q5_1 binding fix (#1436) as the headline, the YOLO move-out (#1437), the StableHLO softmax axis and logSoftmax fixes, the compile-flexibility explanation (#1432) and the SKEEP-008 draft (#1434). VERSION_NAME, CITATION, Antora version, README bom coordinate, What's New and contributors, Android tutorial coordinates; regenerated operator and kernel-support matrices.
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Adds SKEEP-008: Precision and encoding conversion at
Status: Draft. Tracking issue: #1433.Covers the two stub areas the op-coverage inventory (#1370) left without an issue, because both change public API semantics:
dense<TLayer>()×2 andstage<TStage>()areTODO()in both DSL implementations, and they can't be implemented as declared: an interface method's type parameter can't bereified, so there's noKClassfor the layer. Proposal: take the dtype as a value (dense(64, dtype = FP16)) behind onePrecisionBoundarymodule built on the existingTensorOps.convert, which is already traced and lowers tostablehlo.convert. Inference first;convertbecomes@Diffin a later phase.TensorStorage.repackTothrows for every encoding change. Proposal:repackTostays lossless (packed → dense, narrow → wide dense), and a new, explicitly lossyrequantizeToreusesRequantizers, so it accepts exactly what loader quantize-at-load accepts.MixedPrecisionModule/InternalMixedPrecisionModule/MixedPrecisionTensorOpsscaffold. Nothing subclasses or implements it.Docs only, plus the
config/stub-allowlist.txtreason now pointing at SKEEP-008 / #1433. Registered innav.adocand the Current Proposals table.Open questions for review are in the proposal:
reifiedsugar, cast-pair elision, whererequantizeToshould live, andDTypePolicymetadata on boundaries.🤖 Generated with Claude Code