[Webkit-unassigned] [Bug 150712] New: The BinarySnippetRegisterContext needs to copy the result back from the scratch register.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=150712

            Bug ID: 150712
           Summary: The BinarySnippetRegisterContext needs to copy the
                    result back from the scratch register.
    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

If the BinarySnippetRegisterContext had re-assigned the result register to a scratch before emitting the snippet, it needs to copy the result back from the scratch after the snippet is done.

This fixes the cdjs-tests.yaml/main.js.ftl failure reported in https://bugs.webkit.org/show_bug.cgi?id=150687.

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