nv50/ir/opt: don't copy-propagate cond MOVs or MOVs to other reg files

We've never encountered the latter on nvc0, but on nv50 we have moves between GPRs and address regs.
2012-03-22 11:51:52 +01:00
parent ca1fc2b864
commit 44e84d6f16
1 changed files with 4 additions and 0 deletions
@@ -97,6 +97,10 @@ CopyPropagation::visit(BasicBlock *bb)
      next = mov->next;
      if (mov->op != OP_MOV || mov->fixed || !mov->getSrc(0)->asLValue())
         continue;
+      if (mov->getPredicate())
+         continue;
+      if (mov->def(0).getFile() != mov->src(0).getFile())
+         continue;
      si = mov->getSrc(0)->getInsn();
      if (mov->getDef(0)->reg.data.id < 0 && si && si->op != OP_PHI) {
         // propagate