[flang-commits] [clang] [flang] [llvm] [mlir] [polly] [CMake][LLVM] Add PCH infrastructure and LLVMSupport PCH (PR #176420)

[Nikita Popov via flang-commits]

nikic wrote:

Should I pass `-DCMAKE_DISABLE_PRECOMPILE_HEADERS=ON` on the compile time tracker so that we still become aware of expensive includes being added to core headers?

https://github.com/llvm/llvm-project/pull/176420