Modify a comment to reflect changes of r183717.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@183751 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/ASTUnit.cpp b/lib/Frontend/ASTUnit.cpp
index c72e4eb..03279ef 100644
--- a/lib/Frontend/ASTUnit.cpp
+++ b/lib/Frontend/ASTUnit.cpp
@@ -1634,8 +1634,8 @@
Act->EndSourceFile();
if (!Act->hasEmittedPreamblePCH()) {
- // There were errors parsing the preamble, so no precompiled header was
- // generated. Forget that we even tried.
+ // The preamble PCH failed (e.g. there was a module loading fatal error),
+ // so no precompiled header was generated. Forget that we even tried.
// FIXME: Should we leave a note for ourselves to try again?
llvm::sys::Path(FrontendOpts.OutputFile).eraseFromDisk();
Preamble.clear();
