[Webkit-unassigned] [Bug 151823] New: B3 stackmaps should support an internalClobbered register set

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=151823

            Bug ID: 151823
           Summary: B3 stackmaps should support an internalClobbered
                    register set
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: All
                OS: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: fpizlo at apple.com

Registers that are internally clobbered don't interfere with any early uses or late defs, but they do interfere with anything live across the instruction.

This could be used to implement GetByIdFlush and PutByIdFlush better.

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