From 0984ba100b02d848788de3e60f0800f076704288 Mon Sep 17 00:00:00 2001
From: Jakub Jelinek <jakub@redhat.com>
Date: Wed, 30 Jun 2004 13:44:50 +0200
Subject: [PATCH] struct-by-value-22_main.c: New test.

	* gcc.dg/compat/struct-by-value-22_main.c: New test.
	* gcc.dg/compat/struct-by-value-22_x.c: New.
	* gcc.dg/compat/struct-by-value-22_y.c: New.

From-SVN: r83903
---
 gcc/testsuite/ChangeLog                       |  4 +
 .../gcc.dg/compat/struct-by-value-22_main.c   | 16 ++++
 .../gcc.dg/compat/struct-by-value-22_x.c      | 79 +++++++++++++++++++
 .../gcc.dg/compat/struct-by-value-22_y.c      | 39 +++++++++
 4 files changed, 138 insertions(+)
 create mode 100644 gcc/testsuite/gcc.dg/compat/struct-by-value-22_main.c
 create mode 100644 gcc/testsuite/gcc.dg/compat/struct-by-value-22_x.c
 create mode 100644 gcc/testsuite/gcc.dg/compat/struct-by-value-22_y.c

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 57520be74e9..b37a2009fd5 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,5 +1,9 @@
 2004-06-30  Jakub Jelinek  <jakub@redhat.com>
 
+	* gcc.dg/compat/struct-by-value-22_main.c: New test.
+	* gcc.dg/compat/struct-by-value-22_x.c: New.
+	* gcc.dg/compat/struct-by-value-22_y.c: New.
+
 	* gcc.c-torture/execute/20040629-1.c: New test.
 
 2004-06-29  Jakub Jelinek  <jakub@redhat.com>
diff --git a/gcc/testsuite/gcc.dg/compat/struct-by-value-22_main.c b/gcc/testsuite/gcc.dg/compat/struct-by-value-22_main.c
new file mode 100644
index 00000000000..7f005ef0d88
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/compat/struct-by-value-22_main.c
@@ -0,0 +1,16 @@
+/* Test variable sized function argument passing.
+   GCC 3.2 and earlier is incompatible with GCC 3.3+ on x86-64,
+   the latter passes variable sized arguments by reference while
+   the former doesn't.
+   See http://gcc.gnu.org/ml/gcc-patches/2003-01/msg01830.html */
+
+extern void struct_by_value_22_x (void);
+extern void exit (int);
+int fails;
+
+int
+main ()
+{
+  struct_by_value_22_x ();
+  exit (0);
+}
diff --git a/gcc/testsuite/gcc.dg/compat/struct-by-value-22_x.c b/gcc/testsuite/gcc.dg/compat/struct-by-value-22_x.c
new file mode 100644
index 00000000000..fa71a9edd3c
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/compat/struct-by-value-22_x.c
@@ -0,0 +1,79 @@
+#ifndef T
+#include "compat-common.h"
+#include "mixed-struct-defs.h"
+#include "mixed-struct-init.h"
+
+#define T(NAME, FIELDS, TYPE, FIELDINIT, FIELDTEST)			\
+extern void testva##NAME (int n, ...);					\
+									\
+void									\
+testit##NAME (int n)							\
+{									\
+  struct S { FIELDS TYPE a[n]; } s;					\
+  int i;								\
+  FIELDINIT;								\
+  for (i = 0; i < n; ++i)						\
+    s.a[i] = 12 + n - i;						\
+  testva##NAME (n, s, n, s);						\
+}
+
+#include "struct-by-value-22_x.c"
+
+#undef T
+
+void
+struct_by_value_22_x ()
+{
+  int n;
+DEBUG_INIT
+
+#define T(NAME, FIELDS, TYPE, FIELDINIT, FIELDTEST) testit##NAME (n);
+
+  for (n = 0; n < 16; ++n)
+    {
+#include "struct-by-value-22_x.c"
+      DEBUG_NL;
+    }
+  for (; n < 110; n += 13)
+    {
+#include "struct-by-value-22_x.c"
+      DEBUG_NL;
+    }
+
+DEBUG_FINI
+
+if (fails != 0)
+  abort ();
+}
+
+#else
+
+#define S(NAME, FIELDS, FIELDINIT, FIELDTEST)				\
+  T(c##NAME, FIELDS, char, FIELDINIT, FIELDTEST)			\
+  T(s##NAME, FIELDS, short, FIELDINIT, FIELDTEST)			\
+  T(u##NAME, FIELDS, unsigned, FIELDINIT, FIELDTEST)			\
+  T(d##NAME, FIELDS, double, FIELDINIT, FIELDTEST)
+S(E, , do {} while (0), DEBUG_DOT)
+S(n, int n;, s.n = n, if (s.n != n) DEBUG_CHECK)
+#define U(TYPE)								\
+S(TYPE, TYPE s;, init##TYPE (&s.s, n), check##TYPE (s.s, n))
+U(Scd)
+U(Scdc)
+U(Sd)
+U(Sdi)
+U(Scsds)
+U(Scsdsc)
+U(Scsdis)
+U(Scsdisc)
+U(Ssds)
+U(Ssdsc)
+U(Scssdss)
+U(Scssdssc)
+U(Sfi)
+U(Sfii)
+U(Sfifi)
+U(Sfiifii)
+#undef S
+#undef U
+
+#endif
diff --git a/gcc/testsuite/gcc.dg/compat/struct-by-value-22_y.c b/gcc/testsuite/gcc.dg/compat/struct-by-value-22_y.c
new file mode 100644
index 00000000000..079e40e5f89
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/compat/struct-by-value-22_y.c
@@ -0,0 +1,39 @@
+#include <stdarg.h>
+#include "compat-common.h"
+#include "mixed-struct-defs.h"
+#include "mixed-struct-check.h"
+
+#ifdef SKIP_VA
+const int test_va = 0;
+#else
+const int test_va = 1;
+#endif
+
+#define T(NAME, FIELDS, TYPE, FIELDINIT, FIELDTEST)			\
+void									\
+testva##NAME (int n, ...)						\
+{									\
+  va_list ap;								\
+  if (test_va)								\
+    {									\
+      struct S { FIELDS TYPE a[n]; } s;					\
+      int fail = 0, i, j;						\
+									\
+      va_start (ap, n);							\
+      for (j = 0; j < 2; ++j)						\
+        {								\
+	  s = va_arg (ap, struct S);					\
+	  for (i = 0; i < n; ++i)					\
+	    if (s.a[i] != 12 + n - i)					\
+	      ++fail;							\
+	  if (fail)							\
+	    { DEBUG_FAIL; }						\
+	  if (!j && va_arg (ap, int) != n)				\
+	    { DEBUG_FAIL; }						\
+	  FIELDTEST;							\
+	}								\
+      va_end (ap);							\
+    }									\
+}
+
+#include "struct-by-value-22_x.c"
-- 
2.30.2