You showed me that it might be dangerous to replace rtx on the LHS of a SET using simplify_replace_rtx (). simplify_rtx () seems safer, is there a good reason why it doesn't work with INSNs and SETs?
Because it works with expressions. :-)
Will a generalized function called simplify_insn () that uses simplify_rtx () be accepted?
I am no authority, but I think so. Paolo
