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[Modules] Fix use after scope. 

Found by asan.

llvm-svn: 304568
This commit is contained in:
Benjamin Kramer 2017-06-02 17:30:24 +00:00
parent 9277a86f03
commit ee021d54d7
1 changed files with 2 additions and 1 deletions
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3
clang/lib/Serialization/ASTWriter.cpp
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@ -1989,6 +1989,7 @@ void ASTWriter::WriteHeaderSearch(const HeaderSearch &HS) {
// 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 @@ void ASTWriter::WriteHeaderSearch(const HeaderSearch &HS) {
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.