From: Anders Carlsson <andersca@mac.com>
Date: Wed, 27 May 2009 16:45:02 +0000 (+0000)
Subject: IRgen support for calls to functions that return references to aggregate exressions.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=e70e8f7fef3efb3d526ee25b3a0e2a4bf67a04b6;p=clang

IRgen support for calls to functions that return references to aggregate exressions.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@72479 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/CGExprAgg.cpp b/lib/CodeGen/CGExprAgg.cpp
index 00c1f8dbc1..59c00528a8 100644
--- a/lib/CodeGen/CGExprAgg.cpp
+++ b/lib/CodeGen/CGExprAgg.cpp
@@ -186,6 +186,11 @@ void AggExprEmitter::VisitImplicitCastExpr(ImplicitCastExpr *E) {
 }
 
 void AggExprEmitter::VisitCallExpr(const CallExpr *E) {
+  if (E->getCallReturnType()->isReferenceType()) {
+    EmitAggLoadOfLValue(E);
+    return;
+  }
+  
   RValue RV = CGF.EmitCallExpr(E);
   EmitFinalDestCopy(E, RV);
 }
diff --git a/test/CodeGenCXX/references.cpp b/test/CodeGenCXX/references.cpp
index 9d5a2ed9ee..8e19356757 100644
--- a/test/CodeGenCXX/references.cpp
+++ b/test/CodeGenCXX/references.cpp
@@ -74,6 +74,8 @@ void test_aggregate() {
 
   f(aggregate_return());
   aggregate_reference_return().a = 10;
+
+  c = aggregate_reference_return();
 }
 
 int& reference_return() {