[Webkit-unassigned] [Bug 149621] REGRESSION(r190289): It made Speedometer/Full.html performance test fail

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=149621

--- Comment #2 from Michael Saboff <msaboff at apple.com> ---
I am able to reproduce this in both release and debug builds although the symptoms are a little different.

In a debug build, we are OSR exiting from a function due to BadType, but the real reason is that the tag registers (r14 & r15 on X86-64) do not have the tag constants.  it appears that they were not properly restored after a call (likely to an FTL function).  More debugging.

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