diff options
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.cpp | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp index 2ebaec778e3..6d589eef5a9 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -6325,6 +6325,9 @@ static bool getFauxShuffleMask(SDValue N, SmallVectorImpl<int> &Mask, if (!resolveTargetShuffleInputs(N0, SrcInputs0, SrcMask0, DAG) || !resolveTargetShuffleInputs(N1, SrcInputs1, SrcMask1, DAG)) return false; + // TODO - Add support for more than 2 inputs. + if ((SrcInputs0.size() + SrcInputs1.size()) > 2) + return false; int MaskSize = std::max(SrcMask0.size(), SrcMask1.size()); SmallVector<int, 64> Mask0, Mask1; scaleShuffleMask<int>(MaskSize / SrcMask0.size(), SrcMask0, Mask0); @@ -6384,7 +6387,8 @@ static bool getFauxShuffleMask(SDValue N, SmallVectorImpl<int> &Mask, Mask[i + InsertIdx] = (NumElts * (1 + InputIdx)) + ExtractIdx + M; } } - return true; + // TODO - Add support for more than 1 subinput. + return Ops.size() <= 2; } case ISD::SCALAR_TO_VECTOR: { // Match against a scalar_to_vector of an extract from a vector, @@ -6577,7 +6581,7 @@ static bool resolveTargetShuffleInputs(SDValue Op, return false; resolveTargetShuffleInputsAndMask(Inputs, Mask); - return Inputs.size() <= 2; + return true; } /// Returns the scalar element that will make up the ith |
