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From: "19373742 at buaa dot edu.cn" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/110721] New: Segmentation fault with '-O3 -fno-dce
 -fno-ipa-cp -fno-tree-dce -fno-tree-sink'
Date: Tue, 18 Jul 2023 15:09:27 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D110721

            Bug ID: 110721
           Summary: Segmentation fault with '-O3 -fno-dce -fno-ipa-cp
                    -fno-tree-dce -fno-tree-sink'
           Product: gcc
           Version: 11.4.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: 19373742 at buaa dot edu.cn
  Target Milestone: ---

Created attachment 55570
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D55570&action=3Dedit
The preprocessed file

***************************************************************************=
****
OS and Platform:
CentOS Linux release 7.9.2009 (Core), x86_64 GNU/Linux
***************************************************************************=
****
gcc version:
gcc -v
Using built-in specs.
COLLECT_GCC=3D/home/new-gcc/gcc-11-0713/bin/gcc
COLLECT_LTO_WRAPPER=3D/home/new-gcc/gcc-11-0713/libexec/gcc/x86_64-pc-linux=
-gnu/11.4.1/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ./configure --prefix=3D/home/new-gcc/gcc-11-0713/
--disable-multilib --enable-languae=3Dc,c++
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 11.4.1 20230713 (GCC)
***************************************************************************=
****
Command Lines:
# /home/new-gcc/gcc-11-0713/bin/gcc -I /home/csmith/include/csmith-2.3.0/ -=
O3
-fno-dce -fno-ipa-cp -fno-tree-dce -fno-tree-sink ecn.c -o ecn.o
#/home/new-gcc/gcc-11-0713/bin/gcc -I /home/csmith/include/csmith-2.3.0/ ec=
n.c
-o ecn2.o
# ./ecn.o
Segmentation fault
# ./ecn2.o
checksum =3D AF78526F=