https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108816
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> --- The odd thing is that scalar_loop_iters is <ssa_name 0x7ffff67c2c60 type <boolean_type 0x7ffff68d9b28 _Bool public unsigned QI size <integer_cst 0x7ffff68c1f00 constant 8> unit-size <integer_cst 0x7ffff68c1f18 constant 1> align:8 warn_if_not_align:0 symtab:0 alias-set -1 canonical-type 0x7ffff68d9b28 precision:1 min <integer_cst 0x7ffff68dd168 0> max <integer_cst 0x7ffff68dd198 1>> visited def_stmt _32 = _7 >= _20; version:32> this then confuses the versioning condition split code.