[Webkit-unassigned] [Bug 153422] [b3] REGRESSION(r195395): testComplex(64, 128) asserts on Linux with GCC

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Thu Jan 28 10:57:07 PST 2016


--- Comment #9 from Filip Pizlo <fpizlo at apple.com> ---
(In reply to comment #8)
> I found an interesting thing here. This bug isn't valid if I build 
> JSC with Clang (3.6). But crash happens with GCC 4.9 and 5.2 too.
> It might be a compiler bug or maybe the new code introduced
> in r195395 relies some non standard Clang behaviour.
> By the way, it's not "good" that we try to get the 164th element
> from a null-sized vector. The question is why is it null-sized.

Fascinating.  We'll need to get a bot to run testb3 and testair so that we can catch these things.  It would be great to have such a bot on Linux, compiling with GCC.

I'm really curious what causes this bug.

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