As a follow-up to r158719, remove PPCRegisterInfo::avoidWriteAfterWrite.
Jakob pointed out in response to r158719 that this callback is currently unused
and so this has no effect (and the speedups that I thought that I had observed
as a result of implementing this function must have been noise).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177228
91177308-0d34-0410-b5e6-
96231b3b80d8
-bool
-PPCRegisterInfo::avoidWriteAfterWrite(const TargetRegisterClass *RC) const {
- switch (RC->getID()) {
- case PPC::G8RCRegClassID:
- case PPC::GPRCRegClassID:
- case PPC::F8RCRegClassID:
- case PPC::F4RCRegClassID:
- case PPC::VRRCRegClassID:
- return true;
- default:
- return false;
- }
-}
-
//===----------------------------------------------------------------------===//
// Stack Frame Processing methods
//===----------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
// Stack Frame Processing methods
//===----------------------------------------------------------------------===//
BitVector getReservedRegs(const MachineFunction &MF) const;
BitVector getReservedRegs(const MachineFunction &MF) const;
- virtual bool avoidWriteAfterWrite(const TargetRegisterClass *RC) const;
-
/// We require the register scavenger.
bool requiresRegisterScavenging(const MachineFunction &MF) const {
return true;
/// We require the register scavenger.
bool requiresRegisterScavenging(const MachineFunction &MF) const {
return true;