re PR target/15301 ([3.3/3.4 only] gcc does not pass __m128 arguments correctly)

2004-05-20  H.J. Lu  <hongjiu.lu@intel.com>

	PR target/15301
	* gcc.dg/compat/union-m128-1.h: New file.
	* gcc.dg/compat/union-m128-1_main.c: Likewise.
	* gcc.dg/compat/union-m128-1_x.c: Likewise.
	* gcc.dg/compat/union-m128-1_y.c: Likewise.

From-SVN: r82077

gcc/testsuite/ChangeLog

 2004-05-20  H.J. Lu  <hongjiu.lu@intel.com>
 
+	PR target/15301
+	* gcc.dg/compat/union-m128-1.h: New file.
+	* gcc.dg/compat/union-m128-1_main.c: Likewise.
+	* gcc.dg/compat/union-m128-1_x.c: Likewise.
+	* gcc.dg/compat/union-m128-1_y.c: Likewise.
+
+2004-05-20  H.J. Lu  <hongjiu.lu@intel.com>
+
 	PR target/15302
 	* gcc.dg/compat/struct-complex-1.h: New file.
 	* gcc.dg/compat/struct-complex-1_main.c: Likewise.

gcc/testsuite/gcc.dg/compat/union-m128-1.h

+#include <xmmintrin.h>
+
+typedef struct
+{
+  __m128 x;
+} SS_struct_mi128;
+
+typedef union
+{
+  __m128 x;
+} SS_union_mi128;
+
+typedef union
+{
+  __m128 x;
+  unsigned long long u[2];
+} union_mi128;

gcc/testsuite/gcc.dg/compat/union-m128-1_main.c

+/* { dg-options "-O" } */
+
+#ifdef __x86_64__
+/* Test function argument passing.  PR target/15301.  */
+
+extern void union_m128_1_x (void);
+extern void exit (int);
+
+int
+main ()
+{
+  union_m128_1_x ();
+  exit (0);
+}
+#else
+int
+main ()
+{
+  return 0;
+}
+#endif

gcc/testsuite/gcc.dg/compat/union-m128-1_x.c

+/* { dg-options "-O" } */
+
+#ifdef __x86_64__
+#include "union-m128-1.h"
+
+SS_union_mi128 un;
+SS_struct_mi128 st;
+
+extern void bar ();
+extern void foo ();
+
+void
+union_m128_1_x ()
+{
+  union_mi128 x;
+
+  x.u [0] = 0x123456789abcedf0LL;
+  x.u [1] = 0xfedcba9876543210LL;
+  un.x = x.x;
+  st.x = x.x;
+  bar(un);
+  bar(st);
+  foo(un);
+  foo(st);
+}
+#endif

gcc/testsuite/gcc.dg/compat/union-m128-1_y.c

+/* { dg-options "-O" } */
+
+#ifdef __x86_64__
+#include <stdlib.h>
+
+#include "union-m128-1.h"
+
+void
+bar (SS_union_mi128 un)
+{
+  union_mi128 x;
+  
+  x.x = un.x;
+  if (x.u [0] != 0x123456789abcedf0LL
+      || x.u [1] != 0xfedcba9876543210LL)
+    abort ();
+}
+
+void
+foo (SS_struct_mi128 st)
+{
+  union_mi128 x;
+  
+  x.x = st.x;
+  if (x.u [0] != 0x123456789abcedf0LL
+      || x.u [1] != 0xfedcba9876543210LL)
+    abort ();
+}
+#endif