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Use a literal to define ineg instead of immzero
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23851 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -208,7 +208,6 @@ class PatLeaf<dag frag, code pred = [{}], SDNodeXForm xform = NOOP_SDNodeXForm>
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// Leaf fragments.
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def immAllOnes : PatLeaf<(imm), [{ return N->isAllOnesValue(); }]>;
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def immZero : PatLeaf<(imm), [{ return N->isNullValue(); }]>;
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def vtInt : PatLeaf<(vt), [{ return MVT::isInteger(N->getVT()); }]>;
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def vtFP : PatLeaf<(vt), [{ return MVT::isFloatingPoint(N->getVT()); }]>;
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@ -216,7 +215,7 @@ def vtFP : PatLeaf<(vt), [{ return MVT::isFloatingPoint(N->getVT()); }]>;
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// Other helper fragments.
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def not : PatFrag<(ops node:$in), (xor node:$in, immAllOnes)>;
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def ineg : PatFrag<(ops node:$in), (sub immZero, node:$in)>;
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def ineg : PatFrag<(ops node:$in), (sub 0, node:$in)>;
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//===----------------------------------------------------------------------===//
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// Selection DAG Pattern Support.
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