From 33accdf602a9191caa0a42c4400241def6613af5 Mon Sep 17 00:00:00 2001
From: Eli Friedman <eli.friedman@gmail.com>
Date: Thu, 3 Jan 2013 00:39:26 +0000
Subject: [PATCH] Don't assert/crash on reference variables in lambdas bound to
 a static local variable from the parent scope.  PR14773.

llvm-svn: 171433
---
 clang/lib/CodeGen/CGExprConstant.cpp         |  6 ++----
 clang/lib/CodeGen/CodeGenFunction.h          |  5 -----
 clang/test/CodeGenCXX/lambda-expressions.cpp | 15 +++++++++++++--
 3 files changed, 15 insertions(+), 11 deletions(-)

diff --git a/clang/lib/CodeGen/CGExprConstant.cpp b/clang/lib/CodeGen/CGExprConstant.cpp
index f5bf2a2fe7ad..7a604013b795 100644
--- a/clang/lib/CodeGen/CGExprConstant.cpp
+++ b/clang/lib/CodeGen/CGExprConstant.cpp
@@ -905,10 +905,8 @@ public:
         if (!VD->hasLocalStorage()) {
           if (VD->isFileVarDecl() || VD->hasExternalStorage())
             return CGM.GetAddrOfGlobalVar(VD);
-          else if (VD->isLocalVarDecl()) {
-            assert(CGF && "Can't access static local vars without CGF");
-            return CGF->GetAddrOfStaticLocalVar(VD);
-          }
+          else if (VD->isLocalVarDecl())
+            return CGM.getStaticLocalDeclAddress(VD);
         }
       }
       return 0;
diff --git a/clang/lib/CodeGen/CodeGenFunction.h b/clang/lib/CodeGen/CodeGenFunction.h
index e8f70555c5a4..acc12fe6b63d 100644
--- a/clang/lib/CodeGen/CodeGenFunction.h
+++ b/clang/lib/CodeGen/CodeGenFunction.h
@@ -1687,11 +1687,6 @@ public:
   /// then reuse it.
   void StartBlock(const char *N);
 
-  /// GetAddrOfStaticLocalVar - Return the address of a static local variable.
-  llvm::Constant *GetAddrOfStaticLocalVar(const VarDecl *BVD) {
-    return cast<llvm::Constant>(GetAddrOfLocalVar(BVD));
-  }
-
   /// GetAddrOfLocalVar - Return the address of a local variable.
   llvm::Value *GetAddrOfLocalVar(const VarDecl *VD) {
     llvm::Value *Res = LocalDeclMap[VD];
diff --git a/clang/test/CodeGenCXX/lambda-expressions.cpp b/clang/test/CodeGenCXX/lambda-expressions.cpp
index a8967dce8023..ce20399c5791 100644
--- a/clang/test/CodeGenCXX/lambda-expressions.cpp
+++ b/clang/test/CodeGenCXX/lambda-expressions.cpp
@@ -80,9 +80,20 @@ int g() {
   return [] { return r; } ();
 };
 
-// CHECK: define internal void @"_ZZ1hvEN3$_78__invokeEv"(%struct.A* noalias sret %agg.result)
+// PR14773
+// CHECK: [[ARRVAL:%[0-9a-zA-Z]*]] = load i32* getelementptr inbounds ([0 x i32]* bitcast (<{}>* @_ZZ14staticarrayrefvE5array to [0 x i32]*), i32 0, i64 0), align 4
+// CHECK-NEXT: store i32 [[ARRVAL]]
+void staticarrayref(){
+  static int array[] = {};
+  (void)[](){
+    int (&xxx)[0] = array;
+    int y = xxx[0];
+  }();
+}
+
+// CHECK: define internal void @"_ZZ1hvEN3$_88__invokeEv"(%struct.A* noalias sret %agg.result)
 // CHECK-NOT: =
-// CHECK: call void @"_ZZ1hvENK3$_7clEv"(%struct.A* sret %agg.result,
+// CHECK: call void @"_ZZ1hvENK3$_8clEv"(%struct.A* sret %agg.result,
 // CHECK-NEXT: ret void
 struct A { ~A(); };
 void h() {