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Infallible extractors, and some fixes to fallibility in return types (Option<T> vs T).

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Chris Fallin
2021-09-09 15:33:15 -07:00
parent 6daa55af82
commit a412cce615
7 changed files with 156 additions and 29 deletions
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cranelift/isle/TODO
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@@ -1,8 +1,10 @@
- Optimizations
- Infallible patterns; optimize away control flow when possible.
- Don't do the closure-wrapping thing for expressions inside of patterns.
- Document the semantics of the DSL!
- Document semantics carefully, especially wrt extractors.
- Clean up and factor the codegen properly.
- Build out an initial set of bindings for Cranelift LowerCtx with extractors
for instruction info.
- Look into whether optimizations are possible:
- More in-depth fallibility analysis (avoid failure edges where possible)
- Slightly nicer human-readable generated code
- Include full rule body (S-expression) in comment, not just line number
- Inline some expressions (no more `let val23 = 1234; ... f(val23);`)