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From: "dcb314 at hotmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/113396] [13/14 Regression] csmith: differences from
 -O2 to -O3
Date: Sat, 16 Mar 2024 16:56:30 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D113396

--- Comment #18 from David Binderman <dcb314 at hotmail dot com> ---
(In reply to David Binderman from comment #17)
> I tried out gcc-13.2 and got the following results:
>=20
> foundBugs $ ~/gcc/results.13.2.asan.ubsan/bin/gcc -w -O2
> --param=3Dmax-inline-insns-auto=3D23 bug998.c &&  valgrind -q ./a.out
> checksum =3D 77A231E6
> foundBugs $ ~/gcc/results.13.2.asan.ubsan/bin/gcc -w -O2
> --param=3Dmax-inline-insns-auto=3D24 bug998.c &&  valgrind -q ./a.out
> checksum =3D 130B5204
> foundBugs $=20
>=20
> so it is something that has been going wrong since before gcc-13.2.

Similarly with 13.1:

foundBugs $ ~/gcc/results.13.1.asan.ubsan/bin/gcc -w -O2
--param=3Dmax-inline-insns-auto=3D23 bug998.c &&  valgrind -q ./a.out
checksum =3D 77A231E6
foundBugs $ ~/gcc/results.13.1.asan.ubsan/bin/gcc -w -O2
--param=3Dmax-inline-insns-auto=3D24 bug998.c &&  valgrind -q ./a.out
checksum =3D 130B5204
foundBugs $=