[Webkit-unassigned] [Bug 162796] New: Air::fixObviousSpills() should be able to optimize constant materialization followed by offset address

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=162796

            Bug ID: 162796
           Summary: Air::fixObviousSpills() should be able to optimize
                    constant materialization followed by offset address
    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

We may sometimes end up with code like this:

    Move $0x123412341234, %rax
    Move 0x1234(%rax), blah

We should just materialize the right constant in these cases.

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