1 files changed, 35 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.target/i386/bmi2-bzhi64-1.c b/gcc-4.9/gcc/testsuite/gcc.target/i386/bmi2-bzhi64-1.c
new file mode 100644
index 000000000..1ffe135b4
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.target/i386/bmi2-bzhi64-1.c
@@ -0,0 +1,35 @@
+/* { dg-do run { target { bmi2 && { ! ia32 } } } } */
+/* { dg-options "-mbmi2 -O2" } */
+
+#include <x86intrin.h>
+#include "bmi2-check.h"
+
+__attribute__((noinline))
+unsigned long long
+calc_bzhi_u64 (unsigned long long a, int l)
+{
+  unsigned long long res = a;
+  int i;
+  for (i = 0; i < 64 - l; ++i)
+    res &= ~(1LL << (63 - i));
+
+  return res;
+}
+
+static void
+bmi2_test ()
+{
+  unsigned i;
+  unsigned long long src = 0xce7ace0ce7ace0ff;
+  unsigned long long res, res_ref;
+
+  for (i = 0; i < 5; ++i) {
+    src = src * (i + 1);
+
+    res_ref = calc_bzhi_u64 (src, i * 2);
+    res = _bzhi_u64 (src, i * 2);
+
+    if (res != res_ref)
+      abort();
+  }
+}