Files

Chris Fallin 03793b71a7 ISLE: remove all uses of argument polarity, and remove it from the language. (#4091 )

This PR removes "argument polarity": the feature of ISLE extractors that lets them take
inputs aside from the value to be matched.

Cases that need this expressivity have been subsumed by #4072 with if-let clauses;
we can now finally remove this misfeature of the language, which has caused significant
confusion and has always felt like a bit of a hack.

This PR (i) removes the feature from the ISLE compiler; (ii) removes it from the reference
documentation; and (iii) refactors away all uses of the feature in our three existing
backends written in ISLE.

2022-05-02 09:52:12 -07:00

isle_examples

ISLE: remove all uses of argument polarity, and remove it from the language. (#4091 )

2022-05-02 09:52:12 -07:00

src

ISLE: remove all uses of argument polarity, and remove it from the language. (#4091 )

2022-05-02 09:52:12 -07:00

tests

Implicit type conversions in ISLE (#3807 )

2022-02-23 13:15:27 -08:00

build.rs

Implicit type conversions in ISLE (#3807 )

2022-02-23 13:15:27 -08:00

Cargo.toml

Bump Wasmtime to 0.37.0 (#3994 )

2022-04-05 09:24:28 -05:00

README.md

Add docs to all public exports and deny(missing_docs) going forward

2021-11-11 15:56:55 -08:00

README.md

ISLE: Instruction Selection / Lowering Expressions

ISLE is a domain specific language (DSL) for instruction selection and lowering clif instructions to vcode's MachInsts in Cranelift.

ISLE is a statically-typed term-rewriting language. You define rewriting rules that map input terms (clif instructions) into output terms (MachInsts). These rules get compiled down into Rust source test that uses a tree of match expressions that is as good or better than what you would have written by hand.