OpVT, SrcOp)));
}
+/// LowerVECTOR_SHUFFLE_256 - Handle all 256-bit wide vectors shuffles
+/// which could not be matched by any known target speficic shuffle
+static SDValue
+LowerVECTOR_SHUFFLE_256(ShuffleVectorSDNode *SVOp, SelectionDAG &DAG) {
+ return SDValue();
+}
+
/// LowerVECTOR_SHUFFLE_128v4 - Handle all 128-bit wide vectors with
/// 4 elements, and match them with several different shuffle types.
static SDValue
if (NumElems == 4 && VT.getSizeInBits() == 128)
return LowerVECTOR_SHUFFLE_128v4(SVOp, DAG);
+ //===--------------------------------------------------------------------===//
+ // Custom lower or generate target specific nodes for 256-bit shuffles.
+
// Handle VPERMIL permutations
if (isVPERMILMask(M, VT)) {
unsigned TargetMask = getShuffleVPERMILImmediate(SVOp);
return getTargetShuffleNode(X86ISD::VPERMIL, dl, VT, V1, TargetMask, DAG);
}
+ // Handle general 256-bit shuffles
+ if (VT.is256BitVector())
+ return LowerVECTOR_SHUFFLE_256(SVOp, DAG);
+
return SDValue();
}