[clang] [llvm] [DTLTO][Clang] Add support for Integrated Distributed ThinLTO (PR #147265)

[via llvm-commits]

bd1976bris wrote:

> We use the multicall library. that is in fact our clang and lld (multicall is basically like a busybox config). clang and lld exist in the build directory and install as symlinks to the llvm binary. It's well supported in the CMake, and has been used by us and others for several years now.

@ilovepi - thanks very much! I think that it is  impossible in general for me to predict the name of the tool that will be returned by `ToolChain.getDriver().getClangProgramPath()` so I think that the fix to the test is trivial - I'll modify the Clang Driver test to simply check that there is a non-empty path supplied for the "--thinlto-remote-compiler" argument. We have the cross-project test which will check that the path is actually valid.



https://github.com/llvm/llvm-project/pull/147265