[Bug tree-optimization/113285] New: ICE: verify_flow_info failed

["iamanonymous.cs at gmail dot com" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113285

            Bug ID: 113285
           Summary: ICE: verify_flow_info failed
           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: ---

Compiler Explorer: https://godbolt.org/z/8Ebhao48a

*******************************************************************************
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/202311291030/bin/gcc
COLLECT_LTO_WRAPPER=/root/gcc_set/202311291030/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/202311291030
--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 20231129 (experimental) (GCC) 

git version: 99fa0bfd63d97825c4221dcd3123940f1d0e6291
*******************************************************************************
Program:
$ cat mutant.c
void f(void)
{
  void p(void)
  {
    __label__ l1;
    void q(void)
    {
      goto l1;
    }

    l1:;
  }
  p();
}

*******************************************************************************
Command Lines:
$ gcc mutant.c
mutant.c: In function ‘p’:
mutant.c:3:8: error: label ‘({anonymous})’ has incorrect context in bb 4
    3 |   void p(void)
      |        ^
during GIMPLE pass: cfg
mutant.c:3:8: internal compiler error: verify_flow_info failed
0xae444e verify_flow_info()
        ../../gcc/gcc/cfghooks.cc:287
0x1066aac checking_verify_flow_info()
        ../../gcc/gcc/cfghooks.h:214
0x1066aac cleanup_tree_cfg_noloop
        ../../gcc/gcc/tree-cfgcleanup.cc:1154
0x1066aac cleanup_tree_cfg(unsigned int)
        ../../gcc/gcc/tree-cfgcleanup.cc:1205
0x105e6f4 execute_build_cfg
        ../../gcc/gcc/tree-cfg.cc:378
0x105e6f4 execute
        ../../gcc/gcc/tree-cfg.cc:412
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.