[GlobalISel][AArch64] Legalize G_EXTRACT_SUBVECTOR for SVE#114519

tschuett wants to merge 5 commits intollvm:mainllvm/llvm-project:mainfrom

tschuett:gisel-legalize-extract-subvector3tschuett/llvm-project:gisel-legalize-extract-subvector3Copy head branch name to clipboard