Bolt hasn’t much to do with clang/LLVM I think, unless you’re thinking it could be integrated with lld, the linker that is developed under the LLVM umbrella?
Yeah, lld with bolt
I'm still reading the paper now, but I had the impression that part of its pipeline involves disassembling binary artifacts back into IR that resembles what the compiler used to produce the binary in the first place, which could suggest that that step could benefit from tighter integration with LLVM.
Maybe they twern't suggesting integrating with the compiler.