2 Commits

Author	SHA1	Message	Date
Richard Smith	a21c8e14b6	When preprocessing with -frewrite-imports and -fmodule-file=, do not pass all ... modules to preprocessing of nested .pcm files. Making those module files available results in loading more .pcm files than necessary, and potentially in misbehavior if a module makes itself visible during its own compilation (as parts of that module that have not yet been processed would then become visible). llvm-svn: 306320	2017-06-26 19:39:25 +00:00
Richard Smith	4eca9b9372	[modules] When using -E, we may try to merge decls despite having no Sema ... object. In such a case, use the TU's DC for merging global decls rather than giving up when we find there is no TU scope. Ultimately, we should probably avoid all loading of decls when preprocessing, but there are other reasonable use cases for loading an AST file with no Sema object for which this is the right thing. llvm-svn: 228234	2015-02-04 23:37:59 +00:00