https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112709
Bug ID: 112709
Summary: ICE verify_flow_info failed during GIMPLE pass: asan0
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: iamanonymous.cs at gmail dot com
Target Milestone: ---
*******************************************************************************
OS and Platform:
$ uname -a:
Linux ubuntu 4.15.0-213-generic #224-Ubuntu SMP Mon Jun 19 13:30:12 UTC 2023
x86_64 x86_64 x86_64 GNU/Linux
*******************************************************************************
gcc version:
$ gcc -v
Using built-in specs.
COLLECT_GCC=/root/gcc_set/202311021000/bin/gcc
COLLECT_LTO_WRAPPER=/root/gcc_set/202311021000/libexec/gcc/x86_64-pc-linux-gnu/14.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ../gcc/configure --prefix=/root/gcc_set/202311021000
--with-gmp=/root/build_essential --with-mpfr=/root/build_essential
--with-mpc=/root/build_essential --enable-languages=c,c++ --disable-multilib
--with-sanitizer=address,undefined,thread,leak
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 14.0.0 20231102 (experimental) (GCC)
git version: d508a94167c186b2baacc679896e2809554c0b99
*******************************************************************************
Program:
$ cat mutant.c
struct S { char c[1024]; };
void func(void);
struct S s(void) __attribute__((returns_twice));
struct S *p;
void func1(void)
{
func();
*p = s();
}
*******************************************************************************
Command Lines:
$ gcc -fsanitize=address -c mutant.c
mutant.c: In function ‘func1’:
mutant.c:6:6: error: returns_twice call is not first in basic block 4
6 | void func1(void)
| ^~~~~
*p.0_1(ab) = s ();
during GIMPLE pass: asan0
mutant.c:6:6: internal compiler error: verify_flow_info failed
0xad0a0e verify_flow_info()
../../gcc/gcc/cfghooks.cc:287
0xed36d7 execute_function_todo
../../gcc/gcc/passes.cc:2100
0xed3c0e execute_todo
../../gcc/gcc/passes.cc:2142
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
