Revert r312105 [modules] Add ability to specify module name to module file mapping

Looks like it breaks win10 builder.

llvm-svn: 312112

1 files changed, 4 insertions, 13 deletions

diff --git a/clang/lib/Frontend/CompilerInstance.cpp b/clang/lib/Frontend/CompilerInstance.cpp
index 9a4bcc2722e..84d837d4883 100644
--- a/clang/lib/Frontend/CompilerInstance.cpp
+++ b/clang/lib/Frontend/CompilerInstance.cpp
@@ -1641,14 +1641,6 @@ CompilerInstance::loadModule(SourceLocation ImportLoc,
   } else if (ModuleName == getLangOpts().CurrentModule) {
     // This is the module we're building. 
     Module = PP->getHeaderSearchInfo().lookupModule(ModuleName);
-    /// FIXME: perhaps we should (a) look for a module using the module name
-    //  to file map (PrebuiltModuleFiles) and (b) diagnose if still not found?
-    //if (Module == nullptr) {
-    //  getDiagnostics().Report(ModuleNameLoc, diag::err_module_not_found)
-    //    << ModuleName;
-    //  ModuleBuildFailed = true;
-    //  return ModuleLoadResult();
-    //}
     Known = KnownModules.insert(std::make_pair(Path[0].first, Module)).first;
   } else {
     // Search for a module with the given name.
@@ -1670,17 +1662,16 @@ CompilerInstance::loadModule(SourceLocation ImportLoc,
     }
 
     // Try to load the module from the prebuilt module path.
-    if (Source == ModuleNotFound && (!HSOpts.PrebuiltModuleFiles.empty() ||
-                                     !HSOpts.PrebuiltModulePaths.empty())) {
-      ModuleFileName =
-        PP->getHeaderSearchInfo().getPrebuiltModuleFileName(ModuleName);
+    if (Source == ModuleNotFound && !HSOpts.PrebuiltModulePaths.empty()) {
+      ModuleFileName = PP->getHeaderSearchInfo().getModuleFileName(
+          ModuleName, "", /*UsePrebuiltPath*/ true);
       if (!ModuleFileName.empty())
         Source = PrebuiltModulePath;
     }
 
     // Try to load the module from the module cache.
     if (Source == ModuleNotFound && Module) {
-      ModuleFileName = PP->getHeaderSearchInfo().getCachedModuleFileName(Module);
+      ModuleFileName = PP->getHeaderSearchInfo().getModuleFileName(Module);
       Source = ModuleCache;
     }