[ASTUnit] Unlike LoadFromCommandLine, LoadFromCompilerInvocation causes a crash if Precompilepreamble
is set to true because there is no FileManager at that point.
Patch by Hurcan Solter!
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173071 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/ASTUnit.cpp b/lib/Frontend/ASTUnit.cpp
index 9ab3a8f..4feaad8 100644
--- a/lib/Frontend/ASTUnit.cpp
+++ b/lib/Frontend/ASTUnit.cpp
@@ -1912,6 +1912,8 @@
AST->IncludeBriefCommentsInCodeCompletion
= IncludeBriefCommentsInCodeCompletion;
AST->Invocation = CI;
+ AST->FileSystemOpts = CI->getFileSystemOpts();
+ AST->FileMgr = new FileManager(AST->FileSystemOpts);
AST->UserFilesAreVolatile = UserFilesAreVolatile;
// Recover resources if we crash before exiting this method.