[Modules] Fix use after scope.
Found by asan.
llvm-svn: 304568
diff --git a/clang/lib/Serialization/ASTWriter.cpp b/clang/lib/Serialization/ASTWriter.cpp
index f9e908e..044a264 100644
--- a/clang/lib/Serialization/ASTWriter.cpp
+++ b/clang/lib/Serialization/ASTWriter.cpp
@@ -1989,6 +1989,7 @@
// have resolved them before we get here, but not necessarily: we might be
// compiling a preprocessed module, where there is no requirement for the
// original files to exist any more.
+ const HeaderFileInfo Empty; // So we can take a reference.
if (WritingModule) {
llvm::SmallVector<Module *, 16> Worklist(1, WritingModule);
while (!Worklist.empty()) {
@@ -2027,7 +2028,7 @@
FilenameDup, *U.Size, IncludeTimestamps ? *U.ModTime : 0
};
HeaderFileInfoTrait::data_type Data = {
- {}, {}, {M, ModuleMap::headerKindToRole(U.Kind)}
+ Empty, {}, {M, ModuleMap::headerKindToRole(U.Kind)}
};
// FIXME: Deal with cases where there are multiple unresolved header
// directives in different submodules for the same header.