[Bug tree-optimization/65177] [5 Regression]: extend jump thread for finite state automata causes miscompilation

[spop at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65177

--- Comment #4 from Sebastian Pop <spop at gcc dot gnu.org> ---
command line:
cd src
gcc -g -O1 -ftree-vrp -fexpensive-optimizations -pthread -fPIC -msse2
-DHAVE_CONFIG_H  -I../easel -I../libdivsufsort -I../easel -I. -I. -o
generic_optacc.o -c generic_optacc.c  -fdbg-cnt=registered_jump_thread:168