diff --git a/utils/TableGen/DAGISelEmitter.cpp b/utils/TableGen/DAGISelEmitter.cpp index d45e6d24a83..53934fa6021 100644 --- a/utils/TableGen/DAGISelEmitter.cpp +++ b/utils/TableGen/DAGISelEmitter.cpp @@ -768,7 +768,6 @@ bool TreePatternNode::ApplyTypeConstraints(TreePattern &TP, bool NotRegisters) { if (OperandNode->isSubClassOf("RegisterClass")) { const CodeGenRegisterClass &RC = ISE.getTargetInfo().getRegisterClass(OperandNode); - //VT = RC.getValueTypeNum(0); MadeChange |=getChild(i)->UpdateNodeType(ConvertVTs(RC.getValueTypes()), TP); } else if (OperandNode->isSubClassOf("Operand")) { @@ -1944,11 +1943,11 @@ static unsigned getPatternSize(TreePatternNode *P, DAGISelEmitter &ISE) { P->getExtTypeNum(0) == MVT::Flag || P->getExtTypeNum(0) == MVT::iPTR) && "Not a valid pattern node to size!"); - unsigned Size = 2; // The node itself. + unsigned Size = 3; // The node itself. // If the root node is a ConstantSDNode, increases its size. // e.g. (set R32:$dst, 0). if (P->isLeaf() && dynamic_cast(P->getLeafValue())) - Size++; + Size += 2; // FIXME: This is a hack to statically increase the priority of patterns // which maps a sub-dag to a complex pattern. e.g. favors LEA over ADD. @@ -1957,7 +1956,7 @@ static unsigned getPatternSize(TreePatternNode *P, DAGISelEmitter &ISE) { // calculate the complexity of all patterns a dag can potentially map to. const ComplexPattern *AM = NodeGetComplexPattern(P, ISE); if (AM) - Size += AM->getNumOperands() * 2; + Size += AM->getNumOperands() * 3; // If this node has some predicate function that must match, it adds to the // complexity of this node. @@ -1971,7 +1970,7 @@ static unsigned getPatternSize(TreePatternNode *P, DAGISelEmitter &ISE) { Size += getPatternSize(Child, ISE); else if (Child->isLeaf()) { if (dynamic_cast(Child->getLeafValue())) - Size += 3; // Matches a ConstantSDNode (+2) and a specific value (+1). + Size += 5; // Matches a ConstantSDNode (+3) and a specific value (+2). else if (NodeIsComplexPattern(Child)) Size += getPatternSize(Child, ISE); else if (!Child->getPredicateFn().empty())