Alan Modra <amo...@gmail.com> writes: > Now that we are back in stage1, I'd like to apply > http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00304.html, a change to > toc reference rtl in order to properly specify r2 dependencies. More > commentary in that url. I'm reposting the patch here since the old > one no longer applies cleanly, and I've added some ENABLE_CHECKING > code in rs6000_delegitimize_address.
Sorry to be a pain, but I don't think HIGH is supposed contain regs either. Both HIGH and CONST are supposed to be true constants. It's fine to have a non-HIGH expression as the first operand to a LO_SUM though. Alpha and MIPS use this for small data, where the first LO_SUM operand is the small data pointer. It can also be an arbitrary rtx like a PLUS. Richard
