[Webkit-unassigned] [Bug 238009] New: [RISC-V] Support the bitmanip extensions

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=238009

            Bug ID: 238009
           Summary: [RISC-V] Support the bitmanip extensions
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: zan at falconsigh.net
            Blocks: 237775

The bitmanip extensions (Zba, Zbb, Zbc, Zbs) have been ratified some months ago, and would be very useful in how we generate instructions for certain operations.

These would have to be detected at runtime. Once indicated as supported, we could generate much simpler instructions instead of the current overly-verbose implementations.


Referenced Bugs:

https://bugs.webkit.org/show_bug.cgi?id=237775
[Bug 237775] RISC-V support in JavaScriptCore
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