Handle emitting the assignment operator when the lhs is a reference. Fixes PR5227.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84518 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGExpr.cpp b/lib/CodeGen/CGExpr.cpp
index 6542aa5..29ca900 100644
--- a/lib/CodeGen/CGExpr.cpp
+++ b/lib/CodeGen/CGExpr.cpp
@@ -1367,6 +1367,16 @@
if (E->getOpcode() != BinaryOperator::Assign)
return EmitUnsupportedLValue(E, "binary l-value expression");
+ if (!hasAggregateLLVMType(E->getType())) {
+ // Emit the LHS as an l-value.
+ LValue LV = EmitLValue(E->getLHS());
+
+ llvm::Value *RHS = EmitScalarExpr(E->getRHS());
+ EmitStoreOfScalar(RHS, LV.getAddress(), LV.isVolatileQualified(),
+ E->getType());
+ return LV;
+ }
+
llvm::Value *Temp = CreateTempAlloca(ConvertType(E->getType()));
EmitAggExpr(E, Temp, false);
// FIXME: Are these qualifiers correct?
diff --git a/test/CodeGenCXX/references.cpp b/test/CodeGenCXX/references.cpp
index 682aab3..8e0e1cb 100644
--- a/test/CodeGenCXX/references.cpp
+++ b/test/CodeGenCXX/references.cpp
@@ -130,3 +130,9 @@
}
}
+// PR5227.
+namespace PR5227 {
+void f(int &a) {
+ (a = 10) = 20;
+}
+}