Initial checkin of GCC 4.9.0 from trunk (r208799).

Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba

1 files changed, 35 insertions, 0 deletions

diff --git a/gcc-4.9/libgo/runtime/go-eface-val-compare.c b/gcc-4.9/libgo/runtime/go-eface-val-compare.c
new file mode 100644
index 000000000..454ea3eba
--- /dev/null
+++ b/gcc-4.9/libgo/runtime/go-eface-val-compare.c
@@ -0,0 +1,35 @@
+/* go-eface-val-compare.c -- compare an empty interface with a value.
+
+   Copyright 2010 The Go Authors. All rights reserved.
+   Use of this source code is governed by a BSD-style
+   license that can be found in the LICENSE file.  */
+
+#include "runtime.h"
+#include "go-type.h"
+#include "interface.h"
+
+/* Compare an empty interface with a value.  Return 0 for equal, not
+   zero for not equal (return value is like strcmp).  */
+
+intgo
+__go_empty_interface_value_compare (
+    struct __go_empty_interface left,
+    const struct __go_type_descriptor *right_descriptor,
+    const void *val)
+{
+  const struct __go_type_descriptor *left_descriptor;
+
+  left_descriptor = left.__type_descriptor;
+  if (((uintptr_t) left_descriptor & reflectFlags) != 0)
+    runtime_panicstring ("invalid interface value");
+  if (left_descriptor == NULL)
+    return 1;
+  if (!__go_type_descriptors_equal (left_descriptor, right_descriptor))
+    return 1;
+  if (__go_is_pointer_type (left_descriptor))
+    return left.__object == val ? 0 : 1;
+  if (!left_descriptor->__equalfn (left.__object, val,
+				   left_descriptor->__size))
+    return 1;
+  return 0;
+}