Do not return records with non trivial destructors or copy constructors in

registers.

llvm-svn: 150035

clang/lib/CodeGen/TargetInfo.cpp

@@ -3215,7 +3215,7 @@ ABIArgInfo MipsABIInfo::classifyReturnType(QualType RetTy) const {
       if (RetTy->isAnyComplexType())
         return ABIArgInfo::getDirect();
 
-      if (!IsO32)
+      if (!IsO32 && !isRecordWithNonTrivialDestructorOrCopyConstructor(RetTy))
         return ABIArgInfo::getDirect(returnAggregateInRegs(RetTy, Size));
     }
 

clang/test/CodeGen/mips64-nontrivial-return.cpp

@@ -0,0 +1,17 @@
+// RUN: %clang -target mips64el-unknown-linux -ccc-clang-archs mips64el -O3 -S -mabi=n64 -o - -emit-llvm %s | FileCheck %s
+
+class B {
+public:
+  virtual ~B() {}
+};
+
+class D : public B {
+};
+
+extern D gd0;
+
+// CHECK: _Z4foo1v(%class.D* noalias nocapture sret
+
+D foo1(void) {
+  return gd0;
+}