"Paulo J. Matos" <pocma...@gmail.com> writes: > How can I say in the machine architecture that to generate code for a > particular insn I need any two registers for intermediate operations? > To get one I think that (clobber (match_operand ...)) will work but > what if I want two? Can I add two clobbers on the same define_insn > rule?
Yes. Also look at match_scratch. Ian