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[Bug middle-end/69234] recent GCC trunk compilers miscompile the V8 JavaScript interpreter/JITC
- From: "trippels at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 12 Jan 2016 00:00:02 +0000
- Subject: [Bug middle-end/69234] recent GCC trunk compilers miscompile the V8 JavaScript interpreter/JITC
- Auto-submitted: auto-generated
- References: <bug-69234-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69234
--- Comment #12 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #11)
> (In reply to Abe from comment #9)
> > Created attachment 37309 [details]
> > preprocessed part of V8
> >
> > I will attach a compressed form of the relevant file --
> > "incremental-marking.cc" from V8, preprocessed on AMD64 Ubuntu 14.04.3 LTS
> > using GCC built from trunk revision 226861; analysis showed that
> > preprocessing the same source on the same machine using GCC built from trunk
> > revision 226860 produced the same preprocessor output modulo lines starting
> > in '#'.
>
> Yes this was the same bug. I had forgot I had already debugged this and
> reported what was wrong with the code. Can you or someone please report
> this back to google about their broken code.
They are actually aware of the issue for over a year:
https://bugs.chromium.org/p/v8/issues/detail?id=3782