+//===----------------------------------------------------------------------===//
+//MetadataBase implementation
+//
+
+/// resizeOperands - Metadata keeps track of other metadata uses using
+/// OperandList. Resize this list to hold anticipated number of metadata
+/// operands.
+void MetadataBase::resizeOperands(unsigned NumOps) {
+ unsigned e = getNumOperands();
+ if (NumOps == 0) {
+ NumOps = e*2;
+ if (NumOps < 2) NumOps = 2;
+ } else if (NumOps > NumOperands) {
+ // No resize needed.
+ if (ReservedSpace >= NumOps) return;
+ } else if (NumOps == NumOperands) {
+ if (ReservedSpace == NumOps) return;
+ } else {
+ return;
+ }
+
+ ReservedSpace = NumOps;
+ Use *OldOps = OperandList;
+ Use *NewOps = allocHungoffUses(NumOps);
+ std::copy(OldOps, OldOps + e, NewOps);
+ OperandList = NewOps;
+ if (OldOps) Use::zap(OldOps, OldOps + e, true);
+}