Introduce runtime function %OptimizeFunctionOnNextCall to manually trigger optimization.

test/mjsunit/compiler/property-refs.js

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+// Flags: --allow-natives-syntax
+
 function Load(o) {
   return o.outer.x | o.outer.inner.y;
 }
 
 function StoreXY(o, x, y) {
   o.outer.x = x;
   o.outer.inner.y = y;
 }
 
 function LoadXY(x, y) {
   var object = {
     outer: {
       x: 0,
       inner: { y: 0 }
     }
   };
   StoreXY(object, x, y);
   return Load(object);
 }
 
-for (var i = 0; i < 10000; i++) LoadXY(i, i);
+for (var i = 0; i < 5; i++) LoadXY(i, i);
+%OptimizeFunctionOnNextCall(StoreXY);

[Mads Ager (chromium), 2011/04/11 11:06:38]

Similarly here. If you do not optimize this here, does StoreXY get inlined in
LoadXY?

[Jakob Kummerow, 2011/04/11 12:55:51]

Yes, StoreXY does get inlined if only LoadXY is optimized explicitly. Removed
the two unnecessary lines.

+LoadXY(6, 6);
+%OptimizeFunctionOnNextCall(LoadXY);
+LoadXY(7, 7);
 assertEquals(42 | 87, LoadXY(42, 87));
 assertEquals(42 | 87, LoadXY(42, 87));
 assertEquals(42 | 99, LoadXY(42, "99"));