[ASTUnit] Unlike LoadFromCommandLine, LoadFromCompilerInvocation causes a crash if...

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 9ab3a8faba4e14b61b4632e7e0672cb0c6bf328f..4feaad81e64ec9b07fa3c7396c9039b362e81ea8 100644 (file)
--- a/lib/Frontend/ASTUnit.cpp
+++ b/lib/Frontend/ASTUnit.cpp
@@ -1912,6 +1912,8 @@ ASTUnit *ASTUnit::LoadFromCompilerInvocation(CompilerInvocation *CI,
   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.