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Type-based alias analysis for Wasm GC #9348

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Tracked by #9351
fitzgen opened this issue Oct 1, 2024 · 0 comments
Open
Tracked by #9351

Type-based alias analysis for Wasm GC #9348

fitzgen opened this issue Oct 1, 2024 · 0 comments
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cranelift:goal:optimize-speed Focus area: the speed of the code produced by Cranelift. performance wasm-proposal:gc Issues with the implementation of the gc wasm proposal wasmtime:ref-types Issues related to reference types and GC in Wasmtime

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fitzgen commented Oct 1, 2024

We can take advantage of Wasm GC's sound type system to determine which memory accesses are in logically separate regions, feed that into our alias analysis pass, and go to town.

Requires replacing our hard-coded alias regions with something that is customizable by the cranelift embedder, e.g. just representing alias regions with a u8 code and letting the embedder choose what each code means.
@fitzgen fitzgen added cranelift:goal:optimize-speed Focus area: the speed of the code produced by Cranelift. performance wasmtime:ref-types Issues related to reference types and GC in Wasmtime labels Oct 1, 2024
@fitzgen fitzgen mentioned this issue Oct 1, 2024
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@alexcrichton alexcrichton added the wasm-proposal:gc Issues with the implementation of the gc wasm proposal label Feb 25, 2025
@fitzgen fitzgen mentioned this issue Mar 19, 2025
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cranelift:goal:optimize-speed Focus area: the speed of the code produced by Cranelift. performance wasm-proposal:gc Issues with the implementation of the gc wasm proposal wasmtime:ref-types Issues related to reference types and GC in Wasmtime
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