The register class is required for inserting PHIs, but the "current
virtual register" isn't actually used for anything, so let's remove it
while we're at it.
Differential Revision: https://reviews.llvm.org/D85602
Change-Id: I1e647f31570ef21a7ea8e20db3454178e98a6a8b
//typedef DenseMap<MachineBasicBlock*, Register> AvailableValsTy;
void *AV = nullptr;
- /// VR - Current virtual register whose uses are being updated.
- Register VR;
-
/// VRC - Register class of the current virtual register.
const TargetRegisterClass *VRC;
/// Initialize - Reset this object to get ready for a new set of SSA
/// updates.
void Initialize(Register V);
+ void Initialize(const TargetRegisterClass *RC);
/// AddAvailableValue - Indicate that a rewritten value is available at the
/// end of the specified block with the specified value.
}
/// Initialize - Reset this object to get ready for a new set of SSA
-/// updates. ProtoValue is the value used to name PHI nodes.
-void MachineSSAUpdater::Initialize(Register V) {
+/// updates.
+void MachineSSAUpdater::Initialize(const TargetRegisterClass *RC) {
if (!AV)
AV = new AvailableValsTy();
else
getAvailableVals(AV).clear();
- VR = V;
- VRC = MRI->getRegClass(VR);
+ VRC = RC;
+}
+
+void MachineSSAUpdater::Initialize(Register V) {
+ Initialize(MRI->getRegClass(V));
}
/// HasValueForBlock - Return true if the MachineSSAUpdater already has a value for