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synced 2024-08-25 16:29:20 +00:00
Tidy up to match coding standards. Remove 'else' after 'return' and moving operators to end of preceding line. No functional change intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164887 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -3003,7 +3003,7 @@ SDValue DAGCombiner::MatchBSwapHWord(SDNode *N, SDValue N0, SDValue N1) {
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SDValue ShAmt = DAG.getConstant(16, getShiftAmountTy(VT));
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if (TLI.isOperationLegalOrCustom(ISD::ROTL, VT))
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return DAG.getNode(ISD::ROTL, N->getDebugLoc(), VT, BSwap, ShAmt);
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else if (TLI.isOperationLegalOrCustom(ISD::ROTR, VT))
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if (TLI.isOperationLegalOrCustom(ISD::ROTR, VT))
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return DAG.getNode(ISD::ROTR, N->getDebugLoc(), VT, BSwap, ShAmt);
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return DAG.getNode(ISD::OR, N->getDebugLoc(), VT,
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DAG.getNode(ISD::SHL, N->getDebugLoc(), VT, BSwap, ShAmt),
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@ -3275,14 +3275,14 @@ SDNode *DAGCombiner::MatchRotate(SDValue LHS, SDValue RHS, DebugLoc DL) {
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}
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// Look for sign/zext/any-extended or truncate cases:
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if ((LHSShiftAmt.getOpcode() == ISD::SIGN_EXTEND
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|| LHSShiftAmt.getOpcode() == ISD::ZERO_EXTEND
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|| LHSShiftAmt.getOpcode() == ISD::ANY_EXTEND
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|| LHSShiftAmt.getOpcode() == ISD::TRUNCATE) &&
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(RHSShiftAmt.getOpcode() == ISD::SIGN_EXTEND
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|| RHSShiftAmt.getOpcode() == ISD::ZERO_EXTEND
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|| RHSShiftAmt.getOpcode() == ISD::ANY_EXTEND
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|| RHSShiftAmt.getOpcode() == ISD::TRUNCATE)) {
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if ((LHSShiftAmt.getOpcode() == ISD::SIGN_EXTEND ||
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LHSShiftAmt.getOpcode() == ISD::ZERO_EXTEND ||
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LHSShiftAmt.getOpcode() == ISD::ANY_EXTEND ||
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LHSShiftAmt.getOpcode() == ISD::TRUNCATE) &&
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(RHSShiftAmt.getOpcode() == ISD::SIGN_EXTEND ||
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RHSShiftAmt.getOpcode() == ISD::ZERO_EXTEND ||
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RHSShiftAmt.getOpcode() == ISD::ANY_EXTEND ||
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RHSShiftAmt.getOpcode() == ISD::TRUNCATE)) {
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SDValue LExtOp0 = LHSShiftAmt.getOperand(0);
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SDValue RExtOp0 = RHSShiftAmt.getOperand(0);
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if (RExtOp0.getOpcode() == ISD::SUB &&
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@ -4421,20 +4421,18 @@ SDValue DAGCombiner::visitSIGN_EXTEND(SDNode *N) {
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// If the desired elements are smaller or larger than the source
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// elements we can use a matching integer vector type and then
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// truncate/sign extend
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else {
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EVT MatchingElementType =
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EVT::getIntegerVT(*DAG.getContext(),
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N0VT.getScalarType().getSizeInBits());
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EVT MatchingVectorType =
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EVT::getVectorVT(*DAG.getContext(), MatchingElementType,
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N0VT.getVectorNumElements());
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EVT MatchingElementType =
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EVT::getIntegerVT(*DAG.getContext(),
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N0VT.getScalarType().getSizeInBits());
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EVT MatchingVectorType =
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EVT::getVectorVT(*DAG.getContext(), MatchingElementType,
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N0VT.getVectorNumElements());
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if (SVT == MatchingVectorType) {
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SDValue VsetCC = DAG.getSetCC(N->getDebugLoc(), MatchingVectorType,
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N0.getOperand(0), N0.getOperand(1),
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cast<CondCodeSDNode>(N0.getOperand(2))->get());
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return DAG.getSExtOrTrunc(VsetCC, N->getDebugLoc(), VT);
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}
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if (SVT == MatchingVectorType) {
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SDValue VsetCC = DAG.getSetCC(N->getDebugLoc(), MatchingVectorType,
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N0.getOperand(0), N0.getOperand(1),
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cast<CondCodeSDNode>(N0.getOperand(2))->get());
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return DAG.getSExtOrTrunc(VsetCC, N->getDebugLoc(), VT);
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}
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}
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@ -5244,13 +5242,12 @@ SDValue DAGCombiner::visitTRUNCATE(SDNode *N) {
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// if the source is smaller than the dest, we still need an extend
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return DAG.getNode(N0.getOpcode(), N->getDebugLoc(), VT,
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N0.getOperand(0));
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else if (N0.getOperand(0).getValueType().bitsGT(VT))
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if (N0.getOperand(0).getValueType().bitsGT(VT))
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// if the source is larger than the dest, than we just need the truncate
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return DAG.getNode(ISD::TRUNCATE, N->getDebugLoc(), VT, N0.getOperand(0));
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else
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// if the source and dest are the same type, we can drop both the extend
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// and the truncate.
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return N0.getOperand(0);
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// if the source and dest are the same type, we can drop both the extend
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// and the truncate.
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return N0.getOperand(0);
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}
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// Fold extract-and-trunc into a narrow extract. For example:
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