From aa5d08d04bcb05a6fb34e22aa47d73d0f2641b8f Mon Sep 17 00:00:00 2001
From: Adrian Prantl <aprantl@apple.com>
Date: Fri, 22 Jan 2016 21:14:41 +0000
Subject: Module debugging: Create a parent DIModule with the PCH name for
 types emitted into a precompiled header to mirror the debug info emitted for
 object files importing the PCH.

rdar://problem/24290667

llvm-svn: 258555
---
 clang/lib/CodeGen/ObjectFilePCHContainerOperations.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'clang/lib/CodeGen/ObjectFilePCHContainerOperations.cpp')

diff --git a/clang/lib/CodeGen/ObjectFilePCHContainerOperations.cpp b/clang/lib/CodeGen/ObjectFilePCHContainerOperations.cpp
index 0e3aa61..406b433 100644
--- a/clang/lib/CodeGen/ObjectFilePCHContainerOperations.cpp
+++ b/clang/lib/CodeGen/ObjectFilePCHContainerOperations.cpp
@@ -42,6 +42,7 @@ namespace {
 class PCHContainerGenerator : public ASTConsumer {
   DiagnosticsEngine &Diags;
   const std::string MainFileName;
+  const std::string OutputFileName;
   ASTContext *Ctx;
   ModuleMap &MMap;
   const HeaderSearchOptions &HeaderSearchOpts;
@@ -137,7 +138,8 @@ public:
                         const std::string &OutputFileName,
                         raw_pwrite_stream *OS,
                         std::shared_ptr<PCHBuffer> Buffer)
-      : Diags(CI.getDiagnostics()), Ctx(nullptr),
+      : Diags(CI.getDiagnostics()), MainFileName(MainFileName),
+        OutputFileName(OutputFileName), Ctx(nullptr),
         MMap(CI.getPreprocessor().getHeaderSearchInfo().getModuleMap()),
         HeaderSearchOpts(CI.getHeaderSearchOpts()),
         PreprocessorOpts(CI.getPreprocessorOpts()),
@@ -163,6 +165,8 @@ public:
     Builder.reset(new CodeGen::CodeGenModule(
         *Ctx, HeaderSearchOpts, PreprocessorOpts, CodeGenOpts, *M, Diags));
     Builder->getModuleDebugInfo()->setModuleMap(MMap);
+    Builder->getModuleDebugInfo()->setPCHDescriptor(
+        {MainFileName, "", OutputFileName, ~1ULL});
   }
 
   bool HandleTopLevelDecl(DeclGroupRef D) override {
-- 
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