https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111873
Bug ID: 111873
Summary: runtime Segmentation fault with '-O3
-fno-code-hoisting -fno-early-inlining -fno-tree-fre
-fno-tree-loop-optimize -fno-tree-pre'
Product: gcc
Version: 14.0
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 56148
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=56148&action=edit
The preprocessed file
*******************************************************************************
OS and Platform:
Ubuntu 20.04.4 LTS
*******************************************************************************
gcc version:
$ gcc -v
Using built-in specs.
COLLECT_GCC=/home/cuisk/ctc/gcc-releases/gcc-14/bin/gcc
COLLECT_LTO_WRAPPER=/home/cuisk/ctc/gcc-releases/gcc-14/libexec/gcc/x86_64-pc-linux-gnu/14.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ./configure --prefix=/home/cuisk/ctc/gcc-releases/gcc-14
--disable-multilib --enable-language=c,c++
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 14.0.0 20231015 (experimental) (GCC)
*******************************************************************************
Command Lines:
$ gcc -O3 -fno-code-hoisting -fno-early-inlining -fno-tree-fre
-fno-tree-loop-optimize -fno-tree-pre -I ~/ctc/csmith/include/csmith-2.3.0 a.c
-o ec
$ ./ec
Segmentation fault (core dumped)
$ gcc -fsanitize=undefined -I ~/ctc/csmith/include/csmith-2.3.0 a.c -o nec
$ ./nec
checksum = 99D13A7E
