https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87059
Martin Liška <marxin at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2018-08-22 Known to work| |8.2.0 Ever confirmed|0 |1 Known to fail| |9.0 --- Comment #4 from Martin Liška <marxin at gcc dot gnu.org> --- Maybe it will help: (gdb) p debug_tree(min) <integer_cst 0x3fffaf0cc750 type <integer_type 0x3fffaf1a0150 ssizetype> constant 1> $4 = void (gdb) p debug_tree(max) <integer_cst 0x3fffaf0ccae0 type <integer_type 0x3fffaf1a0150 ssizetype> constant -1> $5 = void (gdb) p cmp $6 = 1 Please use e.g. gcc112 machine, one can reproduce that there.