From 6b45b67b261a557b9e02afe9962aeefffb587f45 Mon Sep 17 00:00:00 2001
From: Daniel Dunbar <daniel@zuster.org>
Date: Fri, 14 May 2010 03:40:53 +0000
Subject: [PATCH] C++/Darwin/x86: Teach IRgen it can pass reference types in
 registers.

llvm-svn: 103761
---
 clang/lib/CodeGen/TargetInfo.cpp           | 4 ++--
 clang/test/CodeGenCXX/x86_32-arguments.cpp | 4 ++++
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/clang/lib/CodeGen/TargetInfo.cpp b/clang/lib/CodeGen/TargetInfo.cpp
index bcd332ac95fe..09baf2e83396 100644
--- a/clang/lib/CodeGen/TargetInfo.cpp
+++ b/clang/lib/CodeGen/TargetInfo.cpp
@@ -188,7 +188,7 @@ static const Type *isSingleElementStruct(QualType T, ASTContext &Context) {
 }
 
 static bool is32Or64BitBasicType(QualType Ty, ASTContext &Context) {
-  if (!Ty->getAs<BuiltinType>() && !Ty->isAnyPointerType() &&
+  if (!Ty->getAs<BuiltinType>() && !Ty->hasPointerRepresentation() &&
       !Ty->isAnyComplexType() && !Ty->isEnumeralType() &&
       !Ty->isBlockPointerType())
     return false;
@@ -388,7 +388,7 @@ bool X86_32ABIInfo::shouldReturnTypeInRegister(QualType Ty,
   }
 
   // If this is a builtin, pointer, enum, or complex type, it is ok.
-  if (Ty->getAs<BuiltinType>() || Ty->isAnyPointerType() || 
+  if (Ty->getAs<BuiltinType>() || Ty->hasPointerRepresentation() ||
       Ty->isAnyComplexType() || Ty->isEnumeralType() ||
       Ty->isBlockPointerType())
     return true;
diff --git a/clang/test/CodeGenCXX/x86_32-arguments.cpp b/clang/test/CodeGenCXX/x86_32-arguments.cpp
index 3af2746345d4..a92ba78b9f6d 100644
--- a/clang/test/CodeGenCXX/x86_32-arguments.cpp
+++ b/clang/test/CodeGenCXX/x86_32-arguments.cpp
@@ -83,3 +83,7 @@ struct s4_0 { float x; };
 struct s4_1 { float x; };
 struct s4_2 : s4_0, s4_1 { };
 s4_2 f4() { return s4_2(); }
+
+// CHECK: define i32 @_Z2f5v()
+struct s5 { s5(); int &x; };
+s5 f5() { return s5(); }