[Webkit-unassigned] [Bug 160870] Member call on NULL pointer in JavaScriptCore/dfg/DFGAbstractInterpretterInlines.h

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=160870

--- Comment #13 from Darin Adler <darin at apple.com> ---
Jonathan has been compiling WebKit with clang's UndefinedBehaviorSanitizer <http://clang.llvm.org/docs/UndefinedBehaviorSanitizer.html>. When compiled like this, code will trap if it makes a non-static function member call with a nullptr for the this pointer.

I think of it as a way to add additional assertions.

When Jonathan is saying that a test "exhibits the bug", he means that when compiled that way, that test hit the trap.

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