Hello, In the discussion: "Question about merging two instructions" http://gcc.gnu.org/ml/gcc/2005-08/msg00563.html
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? Will a generalized function called simplify_insn () that uses simplify_rtx () be accepted? Thanks, Leehod.
