[SPIRV] Avoid repeated hash lookups (NFC)#129358

kazutakahirata merged 1 commit intollvm:mainllvm/llvm-project:mainfrom

kazutakahirata:cleanup_001_repeated_hash_lookups_llvm_SPIRVkazutakahirata/llvm-project:cleanup_001_repeated_hash_lookups_llvm_SPIRVCopy head branch name to clipboard