move MorphNode to out of line and merge setNodeOperands into it. There is
no behavior or performance change here.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33869 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index f790e63..4939436 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -2064,7 +2064,32 @@
}
+/// MorphNodeTo - This frees the operands of the current node, resets the
+/// opcode, types, and operands to the specified value. This should only be
+/// used by the SelectionDAG class.
+void SDNode::MorphNodeTo(unsigned Opc, SDVTList L,
+ const SDOperand *Ops, unsigned NumOps) {
+ NodeType = Opc;
+ ValueList = L.VTs;
+ NumValues = L.NumVTs;
+
+ // Clear the operands list, updating used nodes to remove this from their
+ // use list.
+ for (op_iterator I = op_begin(), E = op_end(); I != E; ++I)
+ I->Val->removeUser(this);
+ delete [] OperandList;
+
+ // Assign the new operands.
+ NumOperands = NumOps;
+ OperandList = NumOperands ? new SDOperand[NumOperands] : 0;
+
+ for (unsigned i = 0, e = NumOps; i != e; ++i) {
+ OperandList[i] = Ops[i];
+ SDNode *N = OperandList[i].Val;
+ N->Uses.push_back(this);
+ }
+}
/// SelectNodeTo - These are used for target selectors to *mutate* the
/// specified node to have the specified return type, Target opcode, and
@@ -2085,7 +2110,7 @@
RemoveNodeFromCSEMaps(N);
- N->MorphNodeTo(ISD::BUILTIN_OP_END+TargetOpc, VTs);
+ N->MorphNodeTo(ISD::BUILTIN_OP_END+TargetOpc, VTs, 0, 0);
CSEMap.InsertNode(N, IP);
return N;
@@ -2104,8 +2129,7 @@
RemoveNodeFromCSEMaps(N);
SDOperand OperandList[] = { Op1 };
- N->MorphNodeTo(ISD::BUILTIN_OP_END+TargetOpc, VTs);
- N->setOperands(OperandList, 1);
+ N->MorphNodeTo(ISD::BUILTIN_OP_END+TargetOpc, VTs, OperandList, 1);
CSEMap.InsertNode(N, IP);
return N;
}
@@ -2125,8 +2149,7 @@
SDOperand OperandList[] = { Op1, Op2 };
- N->MorphNodeTo(ISD::BUILTIN_OP_END+TargetOpc, VTs);
- N->setOperands(OperandList, 2);
+ N->MorphNodeTo(ISD::BUILTIN_OP_END+TargetOpc, VTs, OperandList, 2);
CSEMap.InsertNode(N, IP); // Memoize the new node.
return N;
@@ -2146,8 +2169,7 @@
RemoveNodeFromCSEMaps(N);
SDOperand OperandList[] = { Op1, Op2, Op3 };
- N->MorphNodeTo(ISD::BUILTIN_OP_END+TargetOpc, VTs);
- N->setOperands(OperandList, 3);
+ N->MorphNodeTo(ISD::BUILTIN_OP_END+TargetOpc, VTs, OperandList, 3);
CSEMap.InsertNode(N, IP); // Memoize the new node.
return N;
@@ -2165,8 +2187,7 @@
return ON;
RemoveNodeFromCSEMaps(N);
- N->MorphNodeTo(ISD::BUILTIN_OP_END+TargetOpc, VTs);
- N->setOperands(Ops, NumOps);
+ N->MorphNodeTo(ISD::BUILTIN_OP_END+TargetOpc, VTs, Ops, NumOps);
CSEMap.InsertNode(N, IP); // Memoize the new node.
return N;
@@ -2185,8 +2206,7 @@
RemoveNodeFromCSEMaps(N);
SDOperand OperandList[] = { Op1, Op2 };
- N->MorphNodeTo(ISD::BUILTIN_OP_END+TargetOpc, VTs);
- N->setOperands(OperandList, 2);
+ N->MorphNodeTo(ISD::BUILTIN_OP_END+TargetOpc, VTs, OperandList, 2);
CSEMap.InsertNode(N, IP); // Memoize the new node.
return N;
@@ -2207,8 +2227,7 @@
RemoveNodeFromCSEMaps(N);
SDOperand OperandList[] = { Op1, Op2, Op3 };
- N->MorphNodeTo(ISD::BUILTIN_OP_END+TargetOpc, VTs);
- N->setOperands(OperandList, 3);
+ N->MorphNodeTo(ISD::BUILTIN_OP_END+TargetOpc, VTs, OperandList, 3);
CSEMap.InsertNode(N, IP); // Memoize the new node.
return N;
@@ -2542,7 +2561,7 @@
HandleSDNode::~HandleSDNode() {
SDVTList VTs = { 0, 0 };
- MorphNodeTo(ISD::HANDLENODE, VTs); // Drops operand uses.
+ MorphNodeTo(ISD::HANDLENODE, VTs, 0, 0); // Drops operand uses.
}