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From: "slyfox at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug ipa/107196] [13 Regression] llvm-14.0.6 is miscompiles by
 gcc-13 in -O3: hangs llvm testsuite (inliner seems to break it)
Date: Sun, 09 Oct 2022 19:25:33 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D107196

--- Comment #5 from Sergei Trofimovich <slyfox at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #1)
> We definitely needs more information than this. It could very well be a b=
ug
> in LLVM too.
> Have you tried compiling LLVM with -fsanitize=3Daddress ?

(In reply to Andrew Pinski from comment #2)
> How about -fwrapv ?

Tried the following:
- -fwrapv: no change, hangup still happens
- -fsanitize=3Daddress: hangup disappears, no reports on stderr
- -fwrapv -fsanitize=3Daddress: hangup disappears, no reports on stderr
- -fsanitize=3Dundefined: hangup disappears, no reports on stderr=