* Automatically label Wasmtime `Config` object changes
* Add the "Label Messager" github action
This allows us to have custom messages left in comments on issues and pull
requests when they get labeled with a specific label.
* Add a message for `wasmtime:config`-labeled pull requests
* CI: Consolidate issue/PR triage workflows
Peepmatic was an early attempt at a DSL for peephole optimizations, with the
idea that maybe sometime in the future we could user it for instruction
selection as well. It didn't really pan out, however:
* Peepmatic wasn't quite flexible enough, and adding new operators or snippets
of code implemented externally in Rust was a bit of a pain.
* The performance was never competitive with the hand-written peephole
optimizers. It was *very* size efficient, but that came at the cost of
run-time efficiency. Everything was table-based and interpreted, rather than
generating any Rust code.
Ultimately, because of these reasons, we never turned Peepmatic on by default.
These days, we just landed the ISLE domain-specific language, and it is better
suited than Peepmatic for all the things that Peepmatic was originally designed
to do. It is more flexible and easy to integrate with external Rust code. It is
has better time efficiency, meeting or even beating hand-written code. I think a
small part of the reason why ISLE excels in these things is because its design
was informed by Peepmatic's failures. I still plan on continuing Peepmatic's
mission to make Cranelift's peephole optimizer passes generated from DSL rewrite
rules, but using ISLE instead of Peepmatic.
Thank you Peepmatic, rest in peace!
The `wasmtime` crate currently lives in `crates/api` for historical
reasons, because we once called it `wasmtime-api` crate. This creates a
stumbling block for new contributors.
As discussed on Zulip, rename the directory to `crates/wasmtime`.
It is too easy to run afoul of yaml syntax with all these colons an asterisks,
e.g. we recently broke the bot like this:
``
YAMLException: unidentified alias ".md" at line 58, column 9:
- *.md
^
at generateError (/home/runner/work/_actions/bytecodealliance/labeler/schedule-fork/dist/index.js:8357:10)
at throwError (/home/runner/work/_actions/bytecodealliance/labeler/schedule-fork/dist/index.js:8363:9)
at readAlias (/home/runner/work/_actions/bytecodealliance/labeler/schedule-fork/dist/index.js:9466:5)
at composeNode (/home/runner/work/_actions/bytecodealliance/labeler/schedule-fork/dist/index.js:9558:20)
at readBlockMapping (/home/runner/work/_actions/bytecodealliance/labeler/schedule-fork/dist/index.js:9226:16)
at composeNode (/home/runner/work/_actions/bytecodealliance/labeler/schedule-fork/dist/index.js:9549:12)
at readBlockSequence (/home/runner/work/_actions/bytecodealliance/labeler/schedule-fork/dist/index.js:9145:5)
at composeNode (/home/runner/work/_actions/bytecodealliance/labeler/schedule-fork/dist/index.js:9548:12)
at readBlockMapping (/home/runner/work/_actions/bytecodealliance/labeler/schedule-fork/dist/index.js:9279:11)
at composeNode (/home/runner/work/_actions/bytecodealliance/labeler/schedule-fork/dist/index.js:9549:12)
```
