tree a66bbbb7caa0e6af75b0c9db5e05165b5efcff81
parent b3cfd58c9b13325d994e5f9b5065e6a22d91911d
author Devang Patel <dpatel@apple.com> 1240510156 +0000
committer Devang Patel <dpatel@apple.com> 1240510156 +0000

Handle corner case where clang-cc is invoked directly to compile preprocessed source file without -main-file-name. In this case, CDDebugInfo is not able identify correct main source file becase SM.isFromMainFile() returns true for locations from header files as well as locations from main source file.
This patch takes conservative approach by not emitting more then one compile unit with isMain bit set.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69902 91177308-0d34-0410-b5e6-96231b3b80d8