Fix typo in index comparison of CONSTRUCTOR.

2019-06-03  Martin Liska  <mliska@suse.cz>

	* fold-const.c (operand_equal_p): Fix typo as compare_tree_int
	returns 0 when operands are equal.

From-SVN: r271859

gcc/ChangeLog

+2019-06-03  Martin Liska  <mliska@suse.cz>
+
+	* fold-const.c (operand_equal_p): Fix typo as compare_tree_int
+	returns 0 when operands are equal.
+
 2019-06-03  Richard Biener  <rguenther@suse.de>
 
 	PR tree-optimization/90716

gcc/fold-const.c

@@ -3508,10 +3508,10 @@ operand_equal_p (const_tree arg0, const_tree arg1, unsigned int flags)
 		     positives for GENERIC.  */
 		  || (c0->index
 		      && (TREE_CODE (c0->index) != INTEGER_CST 
-			  || !compare_tree_int (c0->index, i)))
+			  || compare_tree_int (c0->index, i)))
 		  || (c1->index
 		      && (TREE_CODE (c1->index) != INTEGER_CST 
-			  || !compare_tree_int (c1->index, i))))
+			  || compare_tree_int (c1->index, i))))
 		return 0;
 	    }
 	  return 1;