tstellar wrote: > These cache files seem to be largely the same as > [PGO.cmake](https://github.com/llvm/llvm-project/blob/4cec0ba92955c353c52efe728b2cfef3fbdf60f8/clang/cmake/caches/PGO.cmake), > > [PGO-stage2.cmake](https://github.com/llvm/llvm-project/blob/04b002bbb838bc502bd6d5f602af95efd6cc96b3/clang/cmake/caches/PGO-stage2.cmake), > > [PGO-stage2-instrumented.cmake](https://github.com/llvm/llvm-project/blob/04b002bbb838bc502bd6d5f602af95efd6cc96b3/clang/cmake/caches/PGO-stage2-instrumented.cmake), > the only difference appears to be the inclusion of BOLT. Do we really need > separate cache files for that? Could we just extend the existing files?
The main difference is that this llvm-toolchain cache is statically linking both libc++ and the compiler-rt builtins into the stage2 compiler. With the PGO.cmake file, you end up with a compiler that dynamically links gcc's libstdc++ and libgcc. The goal is to create a toolchain the relies on LLVM components as much as possible and has binaries artifacts that are easy to redistribute to a wide variety of host platforms (i.e. because they have minimal dynamic library dependencies). https://github.com/llvm/llvm-project/pull/117802 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
