Avoid loading an undefined value in the ranger_cache constructor.

Enable_new_values takes a boolean, returning the old value.  The constructor
for ranger_cache initialized the m_new_value_p field by calling this routine
and ignorng the result.  This potentially loads the old value uninitialized.

	* gimple-range-cache.cc (ranger_cache::ranger_cache): Initialize
	m_new_value_p directly.

diff --git a/gcc/gimple-range-cache.cc b/gcc/gimple-range-cache.cc
index d9a57c294df25ea61fd63a8734ae429f9eb4ceba..37e2acb19f9d1b190d4e5277d5b4b5de9fde380a 100644 (file)
--- a/gcc/gimple-range-cache.cc
+++ b/gcc/gimple-range-cache.cc
@@ -727,7 +727,7 @@ ranger_cache::ranger_cache (gimple_ranger &q) : query (q)
       if (bb)
        m_gori.exports (bb);
     }
-  enable_new_values (true);
+  m_new_value_p = true;
 }
 
 ranger_cache::~ranger_cache ()