[Webkit-unassigned] [Bug 150313] New: DoubleRep fails to convert SpecBoolean values

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=150313

            Bug ID: 150313
           Summary: DoubleRep fails to convert SpecBoolean values
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Local Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: mark.lam at apple.com

This was uncovered by the op_sub stress test on 32-bit builds.  On 32-bit builds, DoubleRep will erroneously convert 'true' to a 'NaN' instead of a double 1.  On 64-bit, the same issue exists but is masked by another bug in DoubleRep where boolean values will always erroneously trigger a BadType OSR exit.

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