1 files changed, 60 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/inherit/thunk10.C b/gcc/testsuite/g++.dg/inherit/thunk10.C
new file mode 100644
index 000000000..702067749
--- /dev/null
+++ b/gcc/testsuite/g++.dg/inherit/thunk10.C
@@ -0,0 +1,60 @@
+/* { dg-options "-mthumb" { target arm*-*-* } } */
+/* { dg-do run } */
+/* { dg-timeout 100 } */
+
+/* PR middle-end/39378 */
+/* Check if the thunk target function is emitted correctly. */
+class B1
+{
+public:
+  virtual int foo1(void);
+  int b1;
+};
+
+class B2
+{
+public:
+  virtual int foo2 (void);
+  int b2;
+};
+
+class D : public B1, public B2
+{
+  int foo1(void);
+  int foo2(void);
+  int d;
+};
+
+int B1::foo1(void)
+{
+  return 3;
+}
+
+int B2::foo2(void)
+{
+  return 4;
+}
+
+int D::foo1(void)
+{
+  return 1;
+}
+
+int D::foo2(void)
+{
+  return 2;
+}
+
+__attribute__((noinline)) int test(B2* bp)
+{
+  return bp->foo2();
+}
+
+int main()
+{
+  B2 *bp = new D();
+  if (test(bp) == 2)
+    return 0;
+  else
+    return 1;
+}