diff options
Diffstat (limited to 'contrib/llvm/lib/Target/XCore/XCoreISelLowering.cpp')
-rw-r--r-- | contrib/llvm/lib/Target/XCore/XCoreISelLowering.cpp | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/contrib/llvm/lib/Target/XCore/XCoreISelLowering.cpp b/contrib/llvm/lib/Target/XCore/XCoreISelLowering.cpp index 99e76144cba3..75d7ae7048a1 100644 --- a/contrib/llvm/lib/Target/XCore/XCoreISelLowering.cpp +++ b/contrib/llvm/lib/Target/XCore/XCoreISelLowering.cpp @@ -403,8 +403,7 @@ SDValue XCoreTargetLowering::lowerLoadWordFromAlignedBasePlusOffset( static bool isWordAligned(SDValue Value, SelectionDAG &DAG) { - KnownBits Known; - DAG.computeKnownBits(Value, Known); + KnownBits Known = DAG.computeKnownBits(Value); return Known.countMinTrailingZeros() >= 2; } @@ -1649,10 +1648,9 @@ SDValue XCoreTargetLowering::PerformDAGCombine(SDNode *N, // fold (ladd x, 0, y) -> 0, add x, y iff carry is unused and y has only the // low bit set if (N1C && N1C->isNullValue() && N->hasNUsesOfValue(0, 1)) { - KnownBits Known; APInt Mask = APInt::getHighBitsSet(VT.getSizeInBits(), VT.getSizeInBits() - 1); - DAG.computeKnownBits(N2, Known); + KnownBits Known = DAG.computeKnownBits(N2); if ((Known.Zero & Mask) == Mask) { SDValue Carry = DAG.getConstant(0, dl, VT); SDValue Result = DAG.getNode(ISD::ADD, dl, VT, N0, N2); @@ -1672,10 +1670,9 @@ SDValue XCoreTargetLowering::PerformDAGCombine(SDNode *N, // fold (lsub 0, 0, x) -> x, -x iff x has only the low bit set if (N0C && N0C->isNullValue() && N1C && N1C->isNullValue()) { - KnownBits Known; APInt Mask = APInt::getHighBitsSet(VT.getSizeInBits(), VT.getSizeInBits() - 1); - DAG.computeKnownBits(N2, Known); + KnownBits Known = DAG.computeKnownBits(N2); if ((Known.Zero & Mask) == Mask) { SDValue Borrow = N2; SDValue Result = DAG.getNode(ISD::SUB, dl, VT, @@ -1688,10 +1685,9 @@ SDValue XCoreTargetLowering::PerformDAGCombine(SDNode *N, // fold (lsub x, 0, y) -> 0, sub x, y iff borrow is unused and y has only the // low bit set if (N1C && N1C->isNullValue() && N->hasNUsesOfValue(0, 1)) { - KnownBits Known; APInt Mask = APInt::getHighBitsSet(VT.getSizeInBits(), VT.getSizeInBits() - 1); - DAG.computeKnownBits(N2, Known); + KnownBits Known = DAG.computeKnownBits(N2); if ((Known.Zero & Mask) == Mask) { SDValue Borrow = DAG.getConstant(0, dl, VT); SDValue Result = DAG.getNode(ISD::SUB, dl, VT, N0, N2); |