1 files changed, 51 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.target/i386/bmi2-mulx64-2.c b/gcc-4.9/gcc/testsuite/gcc.target/i386/bmi2-mulx64-2.c
new file mode 100644
index 000000000..55b355462
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.target/i386/bmi2-mulx64-2.c
@@ -0,0 +1,51 @@
+/* { dg-do run { target { bmi2 && { ! ia32 } } } } */
+/* { dg-options "-mbmi2 -O2" } */
+
+#include <x86intrin.h>
+#include "bmi2-check.h"
+
+__attribute__((noinline))
+unsigned __int128
+calc_mul_u64 (unsigned long long volatile a, unsigned long long b)
+{
+  unsigned __int128 res = 0;
+  int i;
+  for (i = 0; i < b; ++i)
+    res += (unsigned __int128) a;
+
+  return res;
+}
+
+__attribute__((noinline))
+unsigned long long
+calc_mulx_u64 (unsigned long long x,
+	       unsigned long long y,
+	       unsigned long long *res_h)
+{
+  return _mulx_u64 (x, y, res_h);
+}
+
+
+static void
+bmi2_test ()
+{
+  unsigned i;
+  unsigned long long a = 0xce7ace0ce7ace0;
+  unsigned long long b = 0xface;
+  unsigned long long res_l, res_h;
+  unsigned __int128 res, res_ref;
+
+  for (i=0; i<5; ++i) {
+    a = a * (i + 1);
+    b = b / (i + 1);
+
+    res_ref = calc_mul_u64 (a, b);
+
+    res_l = calc_mulx_u64 (a, b, &res_h);
+
+    res = ((unsigned __int128) res_h << 64) | res_l;
+
+    if (res != res_ref)
+      abort();
+  }
+}