asan.c (instrument_derefs): Disable instrumentation on asan-globals=0.

2015-03-11  Marat Zakirov  <m.zakirov@samsung.com>

	* asan.c (instrument_derefs): Disable instrumentation on asan-globals=0.
	* c-c++-common/asan/no-asan-check-glob.c: New test.

From-SVN: r221345

1 files changed, 2 insertions, 0 deletions

diff --git a/gcc/asan.c b/gcc/asan.c
index b7c2b11..9e4a629 100644
--- a/gcc/asan.c
+++ b/gcc/asan.c
@@ -1820,6 +1820,8 @@ instrument_derefs (gimple_stmt_iterator *iter, tree t,
     {
       if (DECL_THREAD_LOCAL_P (inner))
 	return;
+      if (!ASAN_GLOBALS && is_global_var (inner))
+        return;
       if (!TREE_STATIC (inner))
 	{
 	  /* Automatic vars in the current function will be always