llvm-project

6397e2f5 - Revert "[BPF] Allow libcalls behind a feature gate (#168442)" (#169733)

Revert "[BPF] Allow libcalls behind a feature gate (#168442)" (#169733) **Problem** As mentioned in https://github.com/llvm/llvm-project/pull/168442#pullrequestreview-3501502448 #168442, is not the right solution for the problem. I'll follow @arsenm suggestions starting with https://github.com/llvm/llvm-project/pull/169537 to properly allow safe math operations and i128 support in BPF. **Solution** Revert #168442.