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From: "dcb314 at hotmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/113396] csmith: differences from -O2 to -O3
Date: Mon, 15 Jan 2024 12:16:16 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D113396

--- Comment #1 from David Binderman <dcb314 at hotmail dot com> ---
foundBugs $ ~/gcc/results/bin/gcc -w  -O2  bug998.c -o two.exe
foundBugs $ ~/gcc/results/bin/gcc -w  -O3  bug998.c -o three.exe
foundBugs $ ./two.exe 1 > two.out
foundBugs $ ./three.exe 1 > three.out
foundBugs $ diff two.out three.out  | head -20
510,520c510,520
< ...checksum after hashing g_179.f2 : F8C8E936
< ...checksum after hashing g_179.f3 : 22C7AEC4
< ...checksum after hashing g_179.f4 : E057A6AE
< ...checksum after hashing g_179.f5 : 494E34F0
< ...checksum after hashing g_179.f6 : 72F55A7C
< ...checksum after hashing g_179.f7 : 9B53D63F
< ...checksum after hashing g_179.f8 : DD10C49F
< ...checksum after hashing g_179.f9 : 979E03A7
< ...checksum after hashing g_195 : 63EDBCE7
< ...checksum after hashing g_196 : C1F2B26B
< ...checksum after hashing g_226[i][j] : 835FC1
---
> ...checksum after hashing g_179.f2 : A0B13872
> ...checksum after hashing g_179.f3 : A6EAB221
> ...checksum after hashing g_179.f4 : 744D7BAB
> ...checksum after hashing g_179.f5 : 4D71F83C
> ...checksum after hashing g_179.f6 : 54EDEE43
> ...checksum after hashing g_179.f7 : B280A60F
> ...checksum after hashing g_179.f8 : ECCE643D
foundBugs $=