en Copyright 2015 Java http://172.16.0.5:8080/history/llvm-project-15.0.7/clang/test/ClangScanDeps/Inputs/modules-pch-common-submodule/module.modulemap#3b8f536f [clang][deps] Use top-level modules as precompiled dependenciesThe `ASTReader` populates `Module::PresumedModuleMapFile` only for top-level modules, not submodules. To avoid generating empty `-fmodule-map-file=` arguments, make discovered modules depend on top-level precompiled modules. The granularity of submodules is not important here.The documentation of `Module::PresumedModuleMapFile` says this field is non-empty only when building from preprocessed source. This means there can still be cases where the dependency scanner generates empty `-fmodule-map-file=` arguments. That's being addressed in separate patch: D108544.Reviewed By: dexonsmithDifferential Revision: https://reviews.llvm.org/D108647 List of files: /llvm-project-15.0.7/clang/test/ClangScanDeps/Inputs/modules-pch-common-submodule/module.modulemap Wed, 25 Aug 2021 08:36:03 +0000 Jan Svoboda <jan_svoboda@apple.com>