[lld] Support merging RISC-V Atomics ABI attributes#97347

ilovepi merged 11 commits intomainllvm/llvm-project:mainfrom

users/ilovepi/spr/riscvlld-support-merging-risc-v-atomics-abi-attributesllvm/llvm-project:users/ilovepi/spr/riscvlld-support-merging-risc-v-atomics-abi-attributesCopy head branch name to clipboard