An empty list is not represented as a null pointer. Let TRI do its own
shortcuts.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157702
91177308-0d34-0410-b5e6-
96231b3b80d8
// There exists a super-register that's marked dead.
if (RegInfo->isSuperRegister(IncomingReg, Reg))
return true;
- if (RegInfo->getSubRegisters(IncomingReg) &&
- RegInfo->getSuperRegisters(Reg) &&
- RegInfo->isSubRegister(IncomingReg, Reg))
+ if (RegInfo->isSubRegister(IncomingReg, Reg))
DeadOps.push_back(i);
}
}