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-rw-r--r--gcc-4.9/gcc/testsuite/gcc.target/powerpc/ti_math2.c73
1 files changed, 73 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.target/powerpc/ti_math2.c b/gcc-4.9/gcc/testsuite/gcc.target/powerpc/ti_math2.c
new file mode 100644
index 000000000..b9c03300d
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.target/powerpc/ti_math2.c
@@ -0,0 +1,73 @@
+/* { dg-do run { target { powerpc*-*-* && lp64 } } } */
+/* { dg-options "-O2 -fno-inline" } */
+
+union U {
+ __int128 i128;
+ struct {
+ long l1;
+ long l2;
+ } s;
+};
+
+union U u1,u2;
+
+__int128
+create_128 (long most_sig, long least_sig)
+{
+ union U u;
+
+#if __LITTLE_ENDIAN__
+ u.s.l1 = least_sig;
+ u.s.l2 = most_sig;
+#else
+ u.s.l1 = most_sig;
+ u.s.l2 = least_sig;
+#endif
+ return u.i128;
+}
+
+long most_sig (union U * u)
+{
+#if __LITTLE_ENDIAN__
+ return (*u).s.l2;
+#else
+ return (*u).s.l1;
+#endif
+}
+
+long least_sig (union U * u)
+{
+#if __LITTLE_ENDIAN__
+ return (*u).s.l1;
+#else
+ return (*u).s.l2;
+#endif
+}
+
+__int128
+add_128 (__int128 *ptr, __int128 val)
+{
+ return (*ptr + val);
+}
+
+__int128
+sub_128 (__int128 *ptr, __int128 val)
+{
+ return (*ptr - val);
+}
+
+int
+main (void)
+{
+ /* Do a simple add/sub to make sure carry is happening between the dwords
+ and that dwords are in correct endian order. */
+ u1.i128 = create_128 (1, -1);
+ u2.i128 = add_128 (&u1.i128, 1);
+ if ((most_sig (&u2) != 2) || (least_sig (&u2) != 0))
+ __builtin_abort ();
+ u2.i128 = sub_128 (&u2.i128, 1);
+ if ((most_sig (&u2) != 1) || (least_sig (&u2) != -1))
+ __builtin_abort ();
+ return 0;
+}
+