https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81814
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |wrong-code
Status|UNCONFIRMED |NEW
Last reconfirmed| |2017-08-15
CC| |rguenth at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
The folding obviously preserves precision changing casts, so it should be
valid. Things must go wrong elsewhere, possibly in
operand_equal_for_comparison_p which ends up using get_narrower.
