https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105951
Uroš Bizjak <ubizjak at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Ever confirmed|0 |1
CC| |jakub at gcc dot gnu.org
Last reconfirmed| |2022-06-14
Status|UNCONFIRMED |NEW
Target Milestone|--- |12.3
--- Comment #1 from Uroš Bizjak <ubizjak at gmail dot com> ---
Confirmed, expand_ifn_atomic_op_fetch_cmp_0 is not prepared for case where
expand_atomic_fetch_op returns NULL_RTX:
rtx result = expand_atomic_fetch_op (gen_reg_rtx (mode), mem, op,
code, model, true);
if (lhs)
{
result = emit_store_flag_force (target, comp, result, const0_rtx, mode,
0, 1);
if (result != target)
emit_move_insn (target, result);
}
The compilation ICEs when NULL_RTX is passed to emit_store_flag_force.
CC author.
