diff options
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp index 79d916f5824..1e679ba3f0a 100644 --- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp @@ -2465,6 +2465,12 @@ void SelectionDAG::computeKnownBits(SDValue Op, APInt &KnownZero, KnownOne = KnownOne.trunc(BitWidth); break; } + case ISD::BSWAP: { + computeKnownBits(Op.getOperand(0), KnownZero2, KnownOne2, Depth+1); + KnownZero = KnownZero2.byteSwap(); + KnownOne = KnownOne2.byteSwap(); + break; + } case ISD::SMIN: case ISD::SMAX: case ISD::UMIN: |
