[ic] Also collect known map for relational comparison.

test/mjsunit/compare-known-objects.js

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 21 matching lines @@
 // might have completely different properties.
 
 function eq(a, b) {
   return a == b;
 }
 
 function eq_strict(a, b) {
   return a === b;
 }
 
+function lt(a, b) {
+  return a < b;
+}
+
+function ge(a, b) {

[Jakob Kummerow, 2015/09/21 13:36:26]

Please add tests for "le" and "gt" too.

[Benedikt Meurer, 2015/09/21 15:39:49]

Done.

+  return a >= b;
+}
+
 function test(a, b) {
   // Check CompareIC for equality of known objects.
   assertTrue(eq(a, a));
   assertTrue(eq(b, b));
   assertFalse(eq(a, b));
   // Check CompareIC for strict equality of known objects.
   assertTrue(eq_strict(a, a));
   assertTrue(eq_strict(b, b));
   assertFalse(eq_strict(a, b));
+  // Check CompareIC for less than of known objects.
+  assertFalse(lt(a, a));
+  assertFalse(lt(a, b));
+  assertFalse(lt(b, a));
+  // Check CompareIC for greater than or equal of known objects.
+  assertTrue(ge(a, a));
+  assertTrue(ge(a, b));
+  assertTrue(ge(b, a));
 }
 
 function O(){};
 O.prototype.t = function() {}
 
 var obj1 = new O;
 var obj2 = new O;
 
 // Test original objects.
 assertTrue(%HaveSameMap(obj1, obj2));
 test(obj1, obj2);
 
 // Test after adding property to first object.
 obj1.x = 1;
 test(obj1, obj2);