Functions that return references can be rvalues as well.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@72457 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/CGExprComplex.cpp b/lib/CodeGen/CGExprComplex.cpp
index 3e28490f6ffab561497f5d002b546eeae787e66f..618e446bf1c3b85afa09bf9f480c041ba603d67d 100644 (file)
--- a/lib/CodeGen/CGExprComplex.cpp
+++ b/lib/CodeGen/CGExprComplex.cpp
@@ -255,6 +255,9 @@ VisitImaginaryLiteral(const ImaginaryLiteral *IL) {
 
 
 ComplexPairTy ComplexExprEmitter::VisitCallExpr(const CallExpr *E) {
+  if (E->getCallReturnType()->isReferenceType())
+    return EmitLoadOfLValue(E);
+
   return CGF.EmitCallExpr(E).getComplexVal();
 }
 

diff --git a/lib/CodeGen/CGExprScalar.cpp b/lib/CodeGen/CGExprScalar.cpp
index 8cd84ecdb454695a09c9be060d0f5ed979b1f0c4..e14d40c3b6d376c97a346cd087b4d19306fc768f 100644 (file)
--- a/lib/CodeGen/CGExprScalar.cpp
+++ b/lib/CodeGen/CGExprScalar.cpp
@@ -223,6 +223,9 @@ public:
   Value *EmitCastExpr(const Expr *E, QualType T);
 
   Value *VisitCallExpr(const CallExpr *E) {
+    if (E->getCallReturnType()->isReferenceType())
+      return EmitLoadOfLValue(E);
+    
     return CGF.EmitCallExpr(E).getScalarVal();
   }
 

diff --git a/test/CodeGenCXX/references.cpp b/test/CodeGenCXX/references.cpp
index aee395251ead7731cf38dc84a97affc4e42c12bf..e5db446faecf48ba0da888ebe204926b7271473a 100644 (file)
--- a/test/CodeGenCXX/references.cpp
+++ b/test/CodeGenCXX/references.cpp
@@ -38,6 +38,7 @@ void test_bool() {
   f(true);
   
   bool_reference_return() = true;
+  a = bool_reference_return();
 }
 
 void test_scalar() {
@@ -53,6 +54,7 @@ void test_scalar() {
   f((vec4){1,2,3,4}[0]);
   
   int_reference_return() = 10;
+  a = int_reference_return();
 }
 
 void test_complex() {
@@ -62,6 +64,7 @@ void test_complex() {
   f(10i);
   
   complex_int_reference_return() = 10i;
+  a = complex_int_reference_return();
 }
 
 void test_aggregate() {