- if (!link->ref || bitmap_bit_p (empty_defs, DF_REF_ID (link->ref))
- || bitmap_bit_p (b, DF_REF_ID (link->ref)))
- abort ();
- else
+ {
+ gcc_assert (link->ref);
+ gcc_assert (!bitmap_bit_p (empty_defs, DF_REF_ID (link->ref)));
+ gcc_assert (!bitmap_bit_p (b, DF_REF_ID (link->ref)));