When loading an AST file, set SourceManager::MainFileID to the main file of the AST file,
as suggested by Tom Honermann.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147612 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/FrontendAction.cpp b/lib/Frontend/FrontendAction.cpp
index 6ef07c4..7e4ae02 100644
--- a/lib/Frontend/FrontendAction.cpp
+++ b/lib/Frontend/FrontendAction.cpp
@@ -310,16 +310,7 @@
// Initialize the main file entry. This needs to be delayed until after PCH
// has loaded.
- if (isCurrentFileAST()) {
- // Set the main file ID to an empty file.
- //
- // FIXME: We probably shouldn't need this, but for now this is the
- // simplest way to reuse the logic in ParseAST.
- const char *EmptyStr = "";
- llvm::MemoryBuffer *SB =
- llvm::MemoryBuffer::getMemBuffer(EmptyStr, "<dummy input>");
- CI.getSourceManager().createMainFileIDForMemBuffer(SB);
- } else {
+ if (!isCurrentFileAST()) {
if (!CI.InitializeSourceManager(getCurrentFile()))
return;
}