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From: "19373742 at buaa dot edu.cn" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/110282] Segmentation fault with specific
 optimizations
Date: Mon, 19 Jun 2023 10:05:26 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D110282

--- Comment #4 from CTC <19373742 at buaa dot edu.cn> ---
(In reply to Richard Biener from comment #3)
> Confirmed behavior also with GCC 10, with -fno-bit-tests -fbit-tests
> -fno-ipa-modref -fipa-modref removed.
>=20
> Can you please adjust your script to not pointlessly increase the command
> line
> by adding both positive and neagtive variants of an option?  Can you plea=
se
> try to reduce the set of arbitrary options that reproduce the issue?
>=20
> 25kB garbage testcases are painfully enough to even look at.  Other fuzzi=
ng
> people manage to file bugs with < 100 lines of code and a command line th=
at
> remotely makes sense.

Sorry for the long command lines. This issue can be reproduced with -O3
-fno-dce -fno-ipa-cp -fno-tree-dce -fno-tree-sink.=