This patch implements vector_splice in tablegen for all cases when the
Immediate is positive and lower than the known minimum value of
a scalable vector.
Vector_splice can be implemented using SVE instruction EXT.
For instance :
@llvm.experimental.vector.splice(Vector_1, Vector_2, Imm) @llvm.experimental.vector.splice(<A,B,C,D>, <E,F,G,H>, 1) ==> <B, C, D, E> EXT Vector_1, Vector_2, Imm // Vector_1 = B, C, D + Vector_2 = E
Depends on D105633
clang-tidy: warning: invalid case style for function 'SelectEXTImm' [readability-identifier-naming]
not useful