## Summary
This PR adds the initial TIRx support needed for low-level programming
of Blackwell-class GPU architectures. As part of the ongoing TIRx
refactor, it introduces TVMScript support for directly scripting
advanced hardware features without relying on scheduling as the primary
programming interface.
The change keeps existing `s_tir` script support intact while making
direct scripting a first-class path for TIRx programs.
## Main Changes
- Add TIRx operator dispatch and layout infrastructure.
- Add TVMScript support for new low-level TIRx operations.
- Add analysis, transform, and lowering support for TIRx IR nodes.
- Add CUDA/Blackwell-oriented codegen and intrinsic coverage.
- Add Python and C++ integration points for TIRx scripting and runtime
support.
## Validation
- `pre-commit run --all-files`
- `ninja -C build -j32`
- `CUDA_VISIBLE_DEVICES=2 pytest tests/python/tirx/ -n 16`
- `1723 passed, 47 skipped, 32 warnings`
- `CUDA_VISIBLE_DEVICES=2 python -m pytest -v
tests/python/all-platform-minimal-test`
- `37 passed, 105 skipped`
- `TVM_TEST_TARGETS=llvm python -m pytest -v tests/python/tirx-analysis
tests/python/tirx-base tests/python/tirx-transform -n 16`
- `664 passed, 25 skipped, 9 xfailed, 1 xpassed`
## Local CI Notes
Some full CI-equivalent jobs were not locally reproducible because this
machine is missing parts of the Apache TVM CI environment, including
`llvm-config-15/17`, Vulkan, ROCm, Maven, Sphinx, Doxygen, Emscripten,
and ARM/QEMU cross-toolchain components. Metal-specific tests were
skipped locally because no Metal runtime is available.
Replace all references to the old `ICHECK` / `ICHECK_EQ` macro names
with their `TVM_FFI_ICHECK` / `TVM_FFI_ICHECK_EQ` equivalents across
source files, comments, and documentation, completing the macro rename
introduced by the TVM FFI refactor.
This adds a short lint to ensure that all files have a single trailing newline and no trailing whitespaces. This PR is in two commits, one to add the check and another to fix currently offending files in the repo. See https://github.com/apache/tvm/pull/13058/commits/ba2c2e235e2a16d62fdeed959044c65012d9f942 for just the significant changes. Auto-corrections applied with
```
pre-commit run --all-files
```
* Documentation Refactor - Stage 1
RFC: https://github.com/apache/tvm-rfcs/blob/main/rfcs/0027-formalize-documentation-organization.md
Tracking Issue: https://github.com/apache/tvm/issues/8987
Stage 1 of the documentation refactor reorganizes the docs structure,
moving files (without content changes) and adding new scaffolding to
generate the proper document tree.
It does not address naming, style, content, links, or other existing
content in documents that were moved. State 2 will address fixing these
issues with existing content.
Major changes include but are not limited to:
* Dividing the existing tutorials into two sections:
* Tutorials
* How Tos
* Moving all of the existing tutorials out of the `/tutorial`
directory and into the more general `/gallery` directory.
* Breaking up how-tos into individual sections for more
flexibility and more consistent rendering.
* Moving content into new classifications:
* `/docs/arch` for architecture guides
* `/docs/reference` for API guides and other reference material
* `/docs/topic` for topic specific guides such as microTVM and VTA
* Restructuring `/docs/dev`
* Adding a table of contents to the doc index
* Adding instructions on how to install using third-party tlcpack
* Documentation Refactor - Stage 2
RFC: https://github.com/apache/tvm-rfcs/blob/main/rfcs/0027-formalize-documentation-organization.md
Tracking Issue: https://github.com/apache/tvm/issues/8987
Stage 2 of the documentation refactor fixes naming and links
in the documentation to be consistent with the overall structure.
Major changes include:
* an update to how to contribute to docs.
* several updated index pages with title changes to match
the organization style and bring consistency to the sections
* expanded descriptions of some page collections
* fixed links
* Documentation Refactor - Stage 3
RFC: https://github.com/apache/tvm-rfcs/blob/main/rfcs/0027-formalize-documentation-organization.md
Tracking Issue: https://github.com/apache/tvm/issues/8987
Stage 3 of the documentation refactor adjusts CI for the new structure.
The CI build script takes into account the new gallery format. It
also prevents deleting existing documents, and takes advantage of the
`_staging` and `_build` directories to clean out previous builds.
Shushi Hong