[Webkit-unassigned] [Bug 21943] New: Avoid needless reads of temporary values in CTI code

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=21943

           Summary: Avoid needless reads of temporary values in CTI code
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: cwzwarich at uwaterloo.ca
                CC: mjs at apple.com
OtherBugsDependingO 20813
             nThis:


We currently read a value back from a temporary register in the register file
to put it in eax even if it is still in a machine register (which is usually
eax). We should avoid these extra reads. The problem of avoiding writes is
similarly important, but will require a bit more work.


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