Fix for ipa/PR64503

	PR ipa/64503
	* sreal.c (sreal::dump): Change unsigned format to signed for
	m_exp value.
	(sreal::to_double): Replace exp2 with scalbln.

From-SVN: r219378

gcc/ChangeLog

 2015-01-09  Martin Liska  <mliska@suse.cz>
 
+	PR ipa/64503
+	* sreal.c (sreal::dump): Change unsigned format to signed for
+	m_exp value.
+	(sreal::to_double): Replace exp2 with scalbln.
+
+2015-01-09  Martin Liska  <mliska@suse.cz>
+
 	* cgraphunit.c (cgraph_node::create_wrapper): Fix level of indentation.
 	* ipa-icf.c (sem_function::equals_private): Add support for target and
 	(sem_item_optimizer::merge_classes): Remove redundant function

gcc/sreal.c

@@ -58,7 +58,7 @@ along with GCC; see the file COPYING3.  If not see
 void
 sreal::dump (FILE *file) const
 {
-  fprintf (file, "(%" PRIu64 " * 2^%d)", m_sig, m_exp);
+  fprintf (file, "(%" PRIi64 " * 2^%d)", m_sig, m_exp);
 }
 
 DEBUG_FUNCTION void
@@ -122,7 +122,7 @@ sreal::to_double () const
 {
   double val = m_sig;
   if (m_exp)
-    val *= exp2 (m_exp);
+    val = scalbln (val, m_exp);
   return val;
 }