unsigned int i, retries;
bool ret;
+ if (!func->ins.empty()) {
+ // Insert a nop at the entry so inputs only used by the first instruction
+ // don't count as having an empty live range.
+ Instruction *nop = new_Instruction(func, OP_NOP, TYPE_NONE);
+ BasicBlock::get(func->cfg.getRoot())->insertHead(nop);
+ }
+
ret = insertConstr.exec(func);
if (!ret)
goto out;