[Release] v0.19.0 Release Candidate Notes

[ysh329]

Introduction

The TVM community has worked since the last release to deliver the following new exciting improvements!

The main tags are below (bold text is with lots of progress): Relax, OpenCL, MetaSchedule.

Please visit the full listing of commits for a complete view: v0.19.dev0...v0.19.0.rc0.

Community

None.

RFCs

None.

Arith

• #17469 - [LLVM]Presburger compile fix for MLIR/LLVM 19.x

BugFix

• #17595 - [Fix][KVCache] Fix incorrect tile size calculation
• #17549 - [FIX][LLVM] Workaround -mcpu=apple-latest for llvm above 18.0 ([Bug] Default installation has LLVM errors #17492)
• #17537 - [FIX][topi.scatter_nd] fixed shape equality assert by using analyzer to prove equality
• #17502 - [FIX][TOPI][strided_slice] Fix topi.strided_slice output shape
• #17505 - [RELAX][ONNX][FIX] add a parser to handle expression in the shape dim names
• #17490 - [FIX][ONNX][RELAX] Add support for dynamic ShapeExpr in Slice, Squeeze and Flatten
• #17467 - [FIX][RELAX][ONNX] Fix typo in onnx frontend

CI

• #17596 - [Test] Skip flaky test to unblock CI
• #17451 - Upgrade CI image to 20241105-030952-3e386fd3
• #17534 - Upgrade zephyr-sdk to 0.16.9
• #17503 - Upgrade oneflow==0.9.0
• #17485 - Revert jax, keras, tensorflow, and tflite upgrades introduced [CI] Upgrade CI to Python 3.9 #17425
• #17470 - Pin cpplint==1.6.1

Docs

• #17518 - Few fixes for broken Adreno docs
• #17527 - Fix typo in TensorIR
• #17528 - Fix Typo in Debugging TVM

LLVM

• #17547 - Make compilable with LLVM-20
• #17538 - [RUNTIME] Make ORCJIT LLVM executor the default one

MetaSchedule

• #17465 - Fix a multilevel tiling error on dynamic relax workload

OpenCL & CLML

• #17516 - [RUNTIME][CLML] Dynamic backward compatibility
• #17519 - [OPENCL][ADRENO] Introduce Qualcomm extension support
• #17517 - [TEST][CLML] Clip test case updated
• #17472 - [Device][OpenCL] add CL_EXEC_STATUS_ERROR_FOR_EVENTS_IN_WAIT_LIST to …

Relax

• #17541 - Fix bug in convert_layout pass
• #17539 - [KVCache] Fix attention prefill kernel for Metal and Android
• #17540 - Add support for ONNX LPPool
• #17536 - [Frontend][Onnx] Add auto_pad support for conv
• #17525 - support masked_scatter
• #17506 - [Python]Update Rotary positional embedding scaling
• #17523 - Add gather_elements and gather_nd operators
• #17511 - Update ONNX frontend for unique, nonzero and compress
• #17509 - support scatter ops
• #17504 - [ONNX] Add support for dynamic shape expression in Expand
• #17482 - [KVCACHE] Improved schedule for prefill attention
• #17445 - [MetaSchedule] Support CPU weight prepack
• #17462 - Enhance Relax op and ONNX frontend
• #17466 - Revert "[KVCACHE] Improved schedule for prefill attention"

Runtime

• #17557 - [Dist] Implementation of KV cache transfer
• #17498 - [mrvl]: Support Marvell Hardware Runtime

TIR

• #17423 - [Schedule] Add annotate_buffer_access primitive

web

• #17545 - Allows setting powerPreference on webgpu

Misc

• #17593 - Fix GPU detection in PerStoreFeatureNode
• #17554 - [Refactor] Phase out microTVM
• #17542 - [REFACTOR] Phase out VTA
• #17533 - [Contrib] Remove CLML version print
• #17532 - [3rdparty] Update Picojson with const operator[] function ([TOPI] Move ewise.h -> elemwise.h #327)
• #17474 - [TE][CreatePrimFunc] Fix loop carried dependency case with nested block levels
• #17501 - Fix InternalError in StaticPlanBlockMemory when visiting DataflowBlockNode
• #17455 - Compiled with Default Target(LLVM) and Built with USE_MRVL=ON
• #17481 - [Marvell BYOC]: global_max_pool2d and squeeze op support
• #17484 - Replace np.int with np.int32
• #17476 - Pin pytest-profiling==1.7.0
• #17464 - [JVM] Align Java GraphModule Initialization with Python API
• #17458 - Show the record if the escape sequence is unsupported