re PR target/59207 (uninitialized local variable in sparc_fold_builtin)

	PR target/59207
	* config/sparc/sparc.c (sparc_fold_builtin) <case CODE_FOR_pdist_vis>:
	Make sure neg2_ovf is set before being used.

From-SVN: r205127

gcc/ChangeLog

+2013-11-20  Eric Botcazou  <ebotcazou@adacore.com>
+
+	PR target/59207
+	* config/sparc/sparc.c (sparc_fold_builtin) <case CODE_FOR_pdist_vis>:
+	Make sure neg2_ovf is set before being used.
+
 2013-11-20  Basile Starynkevitch  <basile@starynkevitch.net>
 
-        * plugin.def: Add comment about register_callback and
-        invoke_plugin_callbacks_full.
+	* plugin.def: Add comment about register_callback and
+	invoke_plugin_callbacks_full.
 
-        * plugin.c (register_callback, invoke_plugin_callbacks_full):
-        Handle PLUGIN_INCLUDE_FILE event.
+	* plugin.c (register_callback, invoke_plugin_callbacks_full):
+	Handle PLUGIN_INCLUDE_FILE event.
 
 2013-11-20  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
 

gcc/config/sparc/sparc.c

@@ -10658,7 +10658,8 @@ sparc_fold_builtin (tree fndecl, int n_args ATTRIBUTE_UNUSED,
 	      tmp = e0.add_with_sign (tmp, false, &add1_ovf);
 	      if (tmp.is_negative ())
 		tmp = tmp.neg_with_overflow (&neg2_ovf);
-
+	      else
+		neg2_ovf = false;
 	      result = result.add_with_sign (tmp, false, &add2_ovf);
 	      overflow |= neg1_ovf | neg2_ovf | add1_ovf | add2_ovf;
 	    }