[Webkit-unassigned] [Bug 149106] New: LLInt get/put inline caches shouldn't use tons of opcodes

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Sun Sep 13 12:34:08 PDT 2015


            Bug ID: 149106
           Summary: LLInt get/put inline caches shouldn't use tons of
    Classification: Unclassified
           Product: WebKit
           Version: Other
          Hardware: All
                OS: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: fpizlo at apple.com

The performance of LLInt get/put inline caches probably has little to do with whether the direct/indirect, inline/out-of-line, transition/replace distinctions are made using different opcodes or branches within a single opcode's implementation.  So, we should simplify the code to use a single get_by_id opcode and a single put_by_id opcode.

Also, the inline caches should use StructureID's as much as possible.  Currently they use Structure*'s waaaay too much.

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