From 0317bc9e55c9e4546416e8d141d4bca813adb67f Mon Sep 17 00:00:00 2001
From: David Blaikie <dblaikie@gmail.com>
Date: Tue, 16 Dec 2014 23:49:18 +0000
Subject: PR21909: Don't try (and crash) to generate debug info for explicit
 instantiations of explicit specializations.

llvm-svn: 224394
---
 clang/lib/CodeGen/CodeGenModule.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

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

diff --git a/clang/lib/CodeGen/CodeGenModule.cpp b/clang/lib/CodeGen/CodeGenModule.cpp
index 87bd955a6c03..25aaa30855b6 100644
--- a/clang/lib/CodeGen/CodeGenModule.cpp
+++ b/clang/lib/CodeGen/CodeGenModule.cpp
@@ -3283,7 +3283,8 @@ void CodeGenModule::EmitTopLevelDecl(Decl *D) {
   case Decl::ClassTemplateSpecialization: {
     const auto *Spec = cast<ClassTemplateSpecializationDecl>(D);
     if (DebugInfo &&
-        Spec->getSpecializationKind() == TSK_ExplicitInstantiationDefinition)
+        Spec->getSpecializationKind() == TSK_ExplicitInstantiationDefinition &&
+        Spec->hasDefinition())
       DebugInfo->completeTemplateDefinition(*Spec);
     break;
   }
-- 
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