> PR rtl-optimization/50448 > * cprop.c (try_replace_reg): Try to simplify SET_SRC given the > substitution.
The whole patch is about SET_DEST though, so I'm a little confused. And the head comment of try_replace_reg reads: /* Try to replace all non-SET_DEST occurrences of FROM in INSN with TO. Returns nonzero is successful. */ so I'm not sure this is the right place to fiddle with SET_DEST. -- Eric Botcazou