llvm-project

d2b63ed0 - Revert "Revert "[compiler-rt] Allow building builtins.a without a libc (#86737)""

Revert "Revert "[compiler-rt] Allow building builtins.a without a libc (#86737)"" This reverts commit a2982a29fdfcfe2904754815c85f630a4dc6d88c. Buildbot failure that motivated the revert looks unrelated.