Fix bugs in function MipsABIInfo::returnAggregateInRegs. Functions returning

class objects follow the same rules as those returning struct objects.

llvm-svn: 150196

1 files changed, 31 insertions, 0 deletions

diff --git a/clang/test/CodeGen/mips64-class-return.cpp b/clang/test/CodeGen/mips64-class-return.cpp
new file mode 100644
index 00000000000..eca8d5b2f72
--- /dev/null
+++ b/clang/test/CodeGen/mips64-class-return.cpp
@@ -0,0 +1,31 @@
+// RUN: %clang -target mips64el-unknown-linux -ccc-clang-archs mips64el -O3 -S -mabi=n64 -o - -emit-llvm %s | FileCheck %s
+
+class B0 {
+  double d;
+};
+
+class D0 : public B0 {
+  float f;
+};
+
+class B1 {
+};
+
+class D1 : public B1 {
+  double d;
+  float f;
+};
+
+extern D0 gd0;
+extern D1 gd1;
+
+// CHECK: define { i64, i64 } @_Z4foo1v() 
+D0 foo1(void) {
+  return gd0;
+}
+
+// CHECK: define { double, float } @_Z4foo2v() 
+D1 foo2(void) {
+  return gd1;
+}
+