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Tweak pattern complexity calc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25122 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -1691,12 +1691,7 @@ static const ComplexPattern *NodeGetComplexPattern(TreePatternNode *N,
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/// patterns before small ones. This is used to determine the size of a
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/// pattern.
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static unsigned getPatternSize(TreePatternNode *P, DAGISelEmitter &ISE) {
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assert(isExtIntegerInVTs(P->getExtTypes()) ||
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isExtFloatingPointInVTs(P->getExtTypes()) ||
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P->getExtTypeNum(0) == MVT::isVoid ||
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P->getExtTypeNum(0) == MVT::Flag &&
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"Not a valid pattern node to size!");
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unsigned Size = 1; // The node itself.
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unsigned Size = 2; // The node itself.
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// FIXME: This is a hack to statically increase the priority of patterns
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// which maps a sub-dag to a complex pattern. e.g. favors LEA over ADD.
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@ -1713,10 +1708,10 @@ static unsigned getPatternSize(TreePatternNode *P, DAGISelEmitter &ISE) {
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if (!Child->isLeaf() && Child->getExtTypeNum(0) != MVT::Other)
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Size += getPatternSize(Child, ISE);
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else if (Child->isLeaf()) {
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Size += getPatternSize(Child, ISE);
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if (dynamic_cast<IntInit*>(Child->getLeafValue()))
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++Size; // Matches a ConstantSDNode.
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else if (NodeIsComplexPattern(Child))
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Size += getPatternSize(Child, ISE);
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// Matches a ConstantSDNode. More specific to any immediate.
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++Size;
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}
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}
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