[Bug rtl-optimization/60818] ICE in validate_condition_mode on powerpc*-linux-gnu*

[segher at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60818

--- Comment #14 from Segher Boessenkool <segher at gcc dot gnu.org> ---
I cannot get any of the testcases to fail with current trunk (but
they do fail with GCC 6).  Combine always merges the compare into
the if_then_else pattern, and there are no such patterns in rs6000
(this could be done with a cmp+isel define_insn_and_split, and is
probably a good idea, but we do not have that currently).