Add more tests for empty types

9 files changed, 252 insertions, 0 deletions

diff --git a/gcc/testsuite/g++.dg/abi/empty16.C b/gcc/testsuite/g++.dg/abi/empty16.C
new file mode 100644
index 00000000000..42705137475
--- /dev/null
+++ b/gcc/testsuite/g++.dg/abi/empty16.C
@@ -0,0 +1,17 @@
+// PR c++/60336
+// { dg-do run }
+// { dg-options "-x c" }
+// { dg-additional-sources "empty16a.c" }
+// { dg-prune-output "command line option" }
+
+#include "empty16.h"
+extern "C" void fun(struct dummy, struct foo);
+
+int main()
+{
+  struct dummy d;
+  struct foo f = { -1, -2, -3, -4, -5 };
+
+  fun(d, f); // { dg-message "note: the ABI of passing empty record has changed in GCC 6" }
+  return 0;
+}
diff --git a/gcc/testsuite/g++.dg/abi/empty16.h b/gcc/testsuite/g++.dg/abi/empty16.h
new file mode 100644
index 00000000000..7552ae06576
--- /dev/null
+++ b/gcc/testsuite/g++.dg/abi/empty16.h
@@ -0,0 +1,16 @@
+#ifdef __cplusplus
+struct A1 {};
+struct A2 {};
+struct dummy : A1, A2 {} ;
+#else
+struct dummy {};
+#endif
+
+struct foo
+{
+  int i1;
+  int i2;
+  int i3;
+  int i4;
+  int i5;
+};
diff --git a/gcc/testsuite/g++.dg/abi/empty16a.c b/gcc/testsuite/g++.dg/abi/empty16a.c
new file mode 100644
index 00000000000..6cb7fbccecc
--- /dev/null
+++ b/gcc/testsuite/g++.dg/abi/empty16a.c
@@ -0,0 +1,6 @@
+#include "empty16.h"
+void fun(struct dummy d, struct foo f)
+{
+  if (f.i1 != -1)
+    __builtin_abort();
+}
diff --git a/gcc/testsuite/g++.dg/abi/empty17.C b/gcc/testsuite/g++.dg/abi/empty17.C
new file mode 100644
index 00000000000..472708365ac
--- /dev/null
+++ b/gcc/testsuite/g++.dg/abi/empty17.C
@@ -0,0 +1,17 @@
+// PR c++/60336
+// { dg-do run }
+// { dg-options "-x c" }
+// { dg-additional-sources "empty17a.c" }
+// { dg-prune-output "command line option" }
+
+#include "empty17.h"
+extern "C" void fun(struct dummy, struct foo);
+
+int main()
+{
+  struct dummy d;
+  struct foo f = { -1, -2, -3, -4, -5 };
+
+  fun(d, f); // { dg-message "note: the ABI of passing empty record has changed in GCC 6" }
+  return 0;
+}
diff --git a/gcc/testsuite/g++.dg/abi/empty17.h b/gcc/testsuite/g++.dg/abi/empty17.h
new file mode 100644
index 00000000000..9cf72baca2e
--- /dev/null
+++ b/gcc/testsuite/g++.dg/abi/empty17.h
@@ -0,0 +1,27 @@
+#ifdef __cplusplus
+struct A1
+{
+  void foo (void);
+  unsigned int : 15;
+};
+struct A2
+{
+  void bar (void);
+  unsigned int : 15;
+};
+struct dummy : A1, A2
+{
+  unsigned int : 15;
+};
+#else
+struct dummy {};
+#endif
+
+struct foo
+{
+  int i1;
+  int i2;
+  int i3;
+  int i4;
+  int i5;
+};
diff --git a/gcc/testsuite/g++.dg/abi/empty17a.c b/gcc/testsuite/g++.dg/abi/empty17a.c
new file mode 100644
index 00000000000..24408fde09c
--- /dev/null
+++ b/gcc/testsuite/g++.dg/abi/empty17a.c
@@ -0,0 +1,6 @@
+#include "empty17.h"
+void fun(struct dummy d, struct foo f)
+{
+  if (f.i1 != -1)
+    __builtin_abort();
+}
diff --git a/gcc/testsuite/g++.dg/pr60336-10.C b/gcc/testsuite/g++.dg/pr60336-10.C
new file mode 100644
index 00000000000..6c9c990dad6
--- /dev/null
+++ b/gcc/testsuite/g++.dg/pr60336-10.C
@@ -0,0 +1,50 @@
+// { dg-do run }
+// { dg-options "-O2" }
+
+#include <stdarg.h>
+
+struct dummy0 { };
+struct dummy1 { };
+struct dummy : dummy0, dummy1 { };
+
+void
+test (struct dummy a, int m, ...)
+{
+  va_list va_arglist;
+  int i;
+  int count = 0;
+
+  if (m == 0)
+    count++;
+  va_start (va_arglist, m);
+  i = va_arg (va_arglist, int);
+  if (i == 1)
+    count++;
+  i = va_arg (va_arglist, int);
+  if (i == 2)
+  i = va_arg (va_arglist, int);
+    count++;
+  if (i == 3)
+    count++;
+  i = va_arg (va_arglist, int);
+  if (i == 4)
+    count++;
+  i = va_arg (va_arglist, int);
+  if (i == 5)
+    count++;
+  i = va_arg (va_arglist, int);
+  if (i == 6)
+    count++;
+  va_end (va_arglist);
+  if (count != 7)
+    __builtin_abort ();
+}
+
+struct dummy a0;
+
+int
+main ()
+{
+  test (a0, 0, 1, 2, 3, 4, 5, 6);
+  return 0;
+}
diff --git a/gcc/testsuite/g++.dg/pr60336-11.C b/gcc/testsuite/g++.dg/pr60336-11.C
new file mode 100644
index 00000000000..c92f3d43a5b
--- /dev/null
+++ b/gcc/testsuite/g++.dg/pr60336-11.C
@@ -0,0 +1,56 @@
+// { dg-do run }
+// { dg-options "-O2" }
+
+#include <stdarg.h>
+
+struct dummy0
+{
+  void bar (void);
+};
+struct dummy1
+{
+  void foo (void);
+};
+struct dummy : dummy0, dummy1 { };
+
+void
+test (struct dummy a, int m, ...)
+{
+  va_list va_arglist;
+  int i;
+  int count = 0;
+
+  if (m == 0)
+    count++;
+  va_start (va_arglist, m);
+  i = va_arg (va_arglist, int);
+  if (i == 1)
+    count++;
+  i = va_arg (va_arglist, int);
+  if (i == 2)
+  i = va_arg (va_arglist, int);
+    count++;
+  if (i == 3)
+    count++;
+  i = va_arg (va_arglist, int);
+  if (i == 4)
+    count++;
+  i = va_arg (va_arglist, int);
+  if (i == 5)
+    count++;
+  i = va_arg (va_arglist, int);
+  if (i == 6)
+    count++;
+  va_end (va_arglist);
+  if (count != 7)
+    __builtin_abort ();
+}
+
+struct dummy a0;
+
+int
+main ()
+{
+  test (a0, 0, 1, 2, 3, 4, 5, 6);
+  return 0;
+}
diff --git a/gcc/testsuite/g++.dg/pr60336-12.C b/gcc/testsuite/g++.dg/pr60336-12.C
new file mode 100644
index 00000000000..83a7bb0cfa0
--- /dev/null
+++ b/gcc/testsuite/g++.dg/pr60336-12.C
@@ -0,0 +1,57 @@
+// { dg-do run }
+// { dg-options "-O2" }
+
+#include <stdarg.h>
+
+struct dummy0
+{
+};
+struct dummy1
+{
+  unsigned : 15;
+};
+struct dummy : dummy0, dummy1
+{
+};
+
+void
+test (struct dummy a, int m, ...)
+{
+  va_list va_arglist;
+  int i;
+  int count = 0;
+
+  if (m == 0)
+    count++;
+  va_start (va_arglist, m);
+  i = va_arg (va_arglist, int);
+  if (i == 1)
+    count++;
+  i = va_arg (va_arglist, int);
+  if (i == 2)
+  i = va_arg (va_arglist, int);
+    count++;
+  if (i == 3)
+    count++;
+  i = va_arg (va_arglist, int);
+  if (i == 4)
+    count++;
+  i = va_arg (va_arglist, int);
+  if (i == 5)
+    count++;
+  i = va_arg (va_arglist, int);
+  if (i == 6)
+    count++;
+  va_end (va_arglist);
+  if (count != 7)
+    __builtin_abort ();
+}
+
+struct dummy a0;
+
+int
+main ()
+{
+  test (a0, 0, 1, 2, 3, 4, 5, 6);
+  return 0;
+}