https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112935
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |pinskia at gcc dot
gnu.org
--- Comment #17 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
So it was r14-1655-g52c92fb3f40050 which caused the issue.
It is a correct fix except we sometimes insert a convert and that new ssa name
does not have any global range info on it.
e.g.
_21 = (short unsigned int) x16_27;
So instead of:
bool bit0_p = tree_nonzero_bits (treeop0) == 1;
bool bit1_p = tree_nonzero_bits (treeop1) == 1;
We should use gimple_zero_one_valued_p
bool
gimple_zero_one_valued_p (tree t, tree (*valueize)(tree) ATTRIBUTE_UNUSED)
Which will look through one extra convert.
Let me fix this.
