[SLP]Synchronize cost of gather/buildvector nodes with codegen#135245

alexey-bataev merged 2 commits intomainllvm/llvm-project:mainfrom

users/alexey-bataev/spr/slpsynchronize-cost-of-gatherbuildvector-nodes-with-codegenllvm/llvm-project:users/alexey-bataev/spr/slpsynchronize-cost-of-gatherbuildvector-nodes-with-codegenCopy head branch name to clipboard