[Webkit-unassigned] [Bug 152925] New: B3 needs Neg()

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=152925

            Bug ID: 152925
           Summary: B3 needs Neg()
    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

Currently B3 expresses -x as 0-x.  That's wrong in case of floating point.

It's probably better if we just have a Neg opcode, and this opcode should work for both ints and floats.

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