[Webkit-unassigned] [Bug 242261] New: [Wasm-GC] Introduce i31ref types

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=242261

            Bug ID: 242261
           Summary: [Wasm-GC] Introduce i31ref types
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebAssembly
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: asumu at igalia.com

The Wasm GC proposal (https://github.com/WebAssembly/gc/blob/main/proposals/gc/MVP.md) has a notion of "i31refs", which are a 31-bit integer type that shares its representation with other reference types. It can be used for compiling languages that need a uniform representation for both unboxed integers and compound types.

This bug is for the type representation for i31refs and adding i31ref as a new reference type.

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