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Remove unnecessary bit-wise AND from the limited precision work.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56049 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -2755,18 +2755,16 @@ GetSignificand(SelectionDAG &DAG, SDValue Op) {
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// GetExponent - Get the exponent:
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//
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// (float)(((Op1 & 0x7f800000) >> 23) - 127);
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// (float)((Op1 >> 23) - 127);
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//
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// where Op is the hexidecimal representation of floating point value.
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static SDValue
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GetExponent(SelectionDAG &DAG, SDValue Op) {
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SDValue t1 = DAG.getNode(ISD::AND, MVT::i32, Op,
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DAG.getConstant(0x7f800000, MVT::i32));
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SDValue t2 = DAG.getNode(ISD::SRL, MVT::i32, t1,
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SDValue t1 = DAG.getNode(ISD::SRL, MVT::i32, Op,
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DAG.getConstant(23, MVT::i32));
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SDValue t3 = DAG.getNode(ISD::SUB, MVT::i32, t2,
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SDValue t2 = DAG.getNode(ISD::SUB, MVT::i32, t1,
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DAG.getConstant(127, MVT::i32));
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return DAG.getNode(ISD::UINT_TO_FP, MVT::f32, t3);
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return DAG.getNode(ISD::UINT_TO_FP, MVT::f32, t2);
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}
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/// Inlined utility function to implement binary input atomic intrinsics for
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