diff options
Diffstat (limited to 'lib/CodeGen/SelectionDAG/SelectionDAG.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/SelectionDAG.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp index 76d983f57e..b510f1cd95 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp +++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp @@ -916,6 +916,8 @@ SDOperand SelectionDAG::getNode(unsigned Opcode, MVT::ValueType VT, assert(MVT::getSizeInBits(VT)==MVT::getSizeInBits(Operand.getValueType()) && "Cannot BIT_CONVERT between two different types!"); if (VT == Operand.getValueType()) return Operand; // noop conversion. + if (OpOpcode == ISD::BIT_CONVERT) // bitconv(bitconv(x)) -> bitconv(x) + return getNode(ISD::BIT_CONVERT, VT, Operand.getOperand(0)); break; case ISD::FNEG: if (OpOpcode == ISD::FSUB) // -(X-Y) -> (Y-X) |