ELF: Add branch-to-branch optimization.#138366

pcc wants to merge 1 commit intomainllvm/llvm-project:mainfrom

users/pcc/spr/elf-add-branch-to-branch-optimizationllvm/llvm-project:users/pcc/spr/elf-add-branch-to-branch-optimizationCopy head branch name to clipboard