From: Fariborz Jahanian <fjahanian@apple.com>
Date: Mon, 25 Jan 2010 18:30:26 +0000 (+0000)
Subject: Fix a code gen. bug involving compiling global references.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=f7c00eda7f21ef89cfec48fa90b743a403b89d4b;p=clang

Fix a code gen. bug involving compiling global references.
(fixes radar 7574896).


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94434 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/CGDeclCXX.cpp b/lib/CodeGen/CGDeclCXX.cpp
index 47773a0d69..2d473de47c 100644
--- a/lib/CodeGen/CGDeclCXX.cpp
+++ b/lib/CodeGen/CGDeclCXX.cpp
@@ -80,8 +80,8 @@ void CodeGenFunction::EmitCXXGlobalVarDeclInit(const VarDecl &D,
     EmitDeclInit(*this, D, DeclPtr);
     return;
   }
-
-  ErrorUnsupported(Init, "global variable that binds to a reference");
+  RValue RV = EmitReferenceBindingToExpr(Init, T, /*IsInitializer=*/true);
+  EmitStoreOfScalar(RV.getScalarVal(), DeclPtr, false, T);
 }
 
 void
diff --git a/test/CodeGenCXX/reference-init.cpp b/test/CodeGenCXX/reference-init.cpp
index 6c2c6a3016..61ae2daffd 100644
--- a/test/CodeGenCXX/reference-init.cpp
+++ b/test/CodeGenCXX/reference-init.cpp
@@ -14,3 +14,8 @@ namespace PR5911 {
   int iarr[] = { 1 };
   int test() { return f(iarr); }
 }
+
+// radar 7574896
+struct Foo { int foo; };
+Foo& ignoreSetMutex = *(new Foo);
+