Give CodeGenRegisterClass a real sorted member set.
Make the Elements vector private and expose an ArrayRef through
getOrder() instead. getOrder will eventually provide multiple
user-specified allocation orders.
Use the sorted member set for member and subclass tests. Clean up a lot
of ad hoc searches.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133040 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/InstrInfoEmitter.cpp b/utils/TableGen/InstrInfoEmitter.cpp
index 67cce0e..fc544ee 100644
--- a/utils/TableGen/InstrInfoEmitter.cpp
+++ b/utils/TableGen/InstrInfoEmitter.cpp
@@ -166,13 +166,13 @@
for (unsigned i = 0, e = RCs.size(); i != e; ++i) {
const CodeGenRegisterClass &RC = RCs[i];
- unsigned NumRegs = RC.Elements.size();
- if (NumRegs > NumDefs)
+ ArrayRef<Record*> Order = RC.getOrder();
+ if (Order.size() > NumDefs)
continue; // Can't possibly clobber this RC.
bool Clobber = true;
- for (unsigned j = 0; j < NumRegs; ++j) {
- Record *Reg = RC.Elements[j];
+ for (unsigned j = 0; j < Order.size(); ++j) {
+ Record *Reg = Order[j];
if (!DefSet.count(Reg)) {
Clobber = false;
break;