+ /// isVEXTRACT256Index - Return true if the specified
+ /// EXTRACT_SUBVECTOR operand specifies a vector extract that is
+ /// suitable for input to VEXTRACTF64X4, VEXTRACTI64X4 instructions.
+ bool isVEXTRACT256Index(SDNode *N);
+
+ /// isVINSERT256Index - Return true if the specified
+ /// INSERT_SUBVECTOR operand specifies a subvector insert that is
+ /// suitable for input to VINSERTF64X4, VINSERTI64X4 instructions.
+ bool isVINSERT256Index(SDNode *N);
+
+ /// getExtractVEXTRACT128Immediate - Return the appropriate
+ /// immediate to extract the specified EXTRACT_SUBVECTOR index
+ /// with VEXTRACTF128, VEXTRACTI128 instructions.
+ unsigned getExtractVEXTRACT128Immediate(SDNode *N);
+
+ /// getInsertVINSERT128Immediate - Return the appropriate
+ /// immediate to insert at the specified INSERT_SUBVECTOR index
+ /// with VINSERTF128, VINSERT128 instructions.
+ unsigned getInsertVINSERT128Immediate(SDNode *N);
+
+ /// getExtractVEXTRACT256Immediate - Return the appropriate