<div dir="ltr">Test case?</div><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Dec 18, 2015 at 11:44 AM, Adrian Prantl via cfe-commits <span dir="ltr"><<a href="mailto:cfe-commits@lists.llvm.org" target="_blank">cfe-commits@lists.llvm.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Author: adrian<br>
Date: Fri Dec 18 13:44:31 2015<br>
New Revision: 256012<br>
<br>
URL: <a href="http://llvm.org/viewvc/llvm-project?rev=256012&view=rev" rel="noreferrer" target="_blank">http://llvm.org/viewvc/llvm-project?rev=256012&view=rev</a><br>
Log:<br>
Add a defensive check for a nullptr.<br>
<br>
Modified:<br>
    cfe/trunk/lib/CodeGen/CGDebugInfo.cpp<br>
<br>
Modified: cfe/trunk/lib/CodeGen/CGDebugInfo.cpp<br>
URL: <a href="http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGDebugInfo.cpp?rev=256012&r1=256011&r2=256012&view=diff" rel="noreferrer" target="_blank">http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGDebugInfo.cpp?rev=256012&r1=256011&r2=256012&view=diff</a><br>
==============================================================================<br>
--- cfe/trunk/lib/CodeGen/CGDebugInfo.cpp (original)<br>
+++ cfe/trunk/lib/CodeGen/CGDebugInfo.cpp Fri Dec 18 13:44:31 2015<br>
@@ -3443,11 +3443,13 @@ void CGDebugInfo::EmitUsingDecl(const Us<br>
 }<br>
<br>
 void CGDebugInfo::EmitImportDecl(const ImportDecl &ID) {<br>
-  auto Info = ExternalASTSource::ASTSourceDescriptor(*ID.getImportedModule());<br>
-  DBuilder.createImportedDeclaration(<br>
-      getCurrentContextDescriptor(cast<Decl>(ID.getDeclContext())),<br>
-      getOrCreateModuleRef(Info, DebugTypeExtRefs),<br>
-      getLineNumber(ID.getLocation()));<br>
+  if (Module *M = ID.getImportedModule()) {<br>
+    auto Info = ExternalASTSource::ASTSourceDescriptor(*ID.getImportedModule());<br>
+    DBuilder.createImportedDeclaration(<br>
+        getCurrentContextDescriptor(cast<Decl>(ID.getDeclContext())),<br>
+        getOrCreateModuleRef(Info, DebugTypeExtRefs),<br>
+        getLineNumber(ID.getLocation()));<br>
+  }<br>
 }<br>
<br>
 llvm::DIImportedEntity *<br>
<br>
<br>
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</blockquote></div><br></div>