legalize target-specific operations
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22010 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index 3aa4528..680b2ce 100644
--- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -197,6 +197,29 @@
switch (Node->getOpcode()) {
default:
+ if (Node->getOpcode() >= ISD::BUILTIN_OP_END) {
+ // If this is a target node, legalize it by legalizing the operands then
+ // passing it through.
+ std::vector<SDOperand> Ops;
+ bool Changed = false;
+ for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) {
+ Ops.push_back(LegalizeOp(Node->getOperand(i)));
+ Changed = Changed || Node->getOperand(i) != Ops.back();
+ }
+ if (Changed)
+ if (Node->getNumValues() == 1)
+ Result = DAG.getNode(Node->getOpcode(), Node->getValueType(0), Ops);
+ else {
+ std::vector<MVT::ValueType> VTs(Node->value_begin(),
+ Node->value_end());
+ Result = DAG.getNode(Node->getOpcode(), VTs, Ops);
+ }
+
+ for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i)
+ AddLegalizedOperand(Op.getValue(i), Result.getValue(i));
+ return Result.getValue(Op.ResNo);
+ }
+ // Otherwise this is an unhandled builtin node. splat.
std::cerr << "NODE: "; Node->dump(); std::cerr << "\n";
assert(0 && "Do not know how to legalize this operator!");
abort();