diff --git a/tests/checked/new_obj.js b/tests/checked/new_obj.js
index 239926223e1dfd19e5f8569a2c9edd064064e657..b4a439afde2c47dd65c04609eb0a154e07ee7c86 100644
--- a/tests/checked/new_obj.js
+++ b/tests/checked/new_obj.js
@@ -202,7 +202,39 @@ function alloc_8() {
 //! PASS_AFTER   "Codegen"
 //! INST         /Intrinsic.AllocDynObject.*/
 //! RUN options: "--compiler-enable-jit=false", entry: "_GLOBAL::func_main_0", force_jit: false
-for (var i = 0; i < 100000; ++i) {
+RuntimeTesting.PrepareFunctionForOptimization(alloc_1);
+alloc_1()
+RuntimeTesting.OptimizeFunctionOnNextCall(alloc_1);
+
+RuntimeTesting.PrepareFunctionForOptimization(alloc_2);
+alloc_2()
+RuntimeTesting.OptimizeFunctionOnNextCall(alloc_2);
+
+RuntimeTesting.PrepareFunctionForOptimization(alloc_3);
+alloc_3()
+RuntimeTesting.OptimizeFunctionOnNextCall(alloc_3);
+
+RuntimeTesting.PrepareFunctionForOptimization(alloc_4);
+alloc_4()
+RuntimeTesting.OptimizeFunctionOnNextCall(alloc_4);
+
+RuntimeTesting.PrepareFunctionForOptimization(alloc_5);
+alloc_5()
+RuntimeTesting.OptimizeFunctionOnNextCall(alloc_5);
+
+RuntimeTesting.PrepareFunctionForOptimization(alloc_6);
+alloc_6()
+RuntimeTesting.OptimizeFunctionOnNextCall(alloc_6);
+
+RuntimeTesting.PrepareFunctionForOptimization(alloc_7);
+alloc_7()
+RuntimeTesting.OptimizeFunctionOnNextCall(alloc_7);
+
+RuntimeTesting.PrepareFunctionForOptimization(alloc_8);
+alloc_8()
+RuntimeTesting.OptimizeFunctionOnNextCall(alloc_8);
+
+for (var i = 0; i < 5; ++i) {
     alloc_1()
     alloc_2()
     alloc_3()
diff --git a/tests/checked/new_obj_profiling.js b/tests/checked/new_obj_profiling.js
index ea7e26064df25deb055cc2db6385f00b4f345af8..2406056bcfb240096ec83983fd8a37c4f93b1d84 100644
--- a/tests/checked/new_obj_profiling.js
+++ b/tests/checked/new_obj_profiling.js
@@ -80,7 +80,34 @@ function monomorphic_call_site_derived_ctor() {
 //! INST_NOT     /Intrinsic.ResolveAllocResult.*/
 //! INST_NOT     /Intrinsic.NewobjDynrangeHandled*/
 //! EVENT        /Deoptimization,.*monomorphic_call_site_simple_ctor.*,.*,IFRAME/
-for (var i = 0; i < 100000; ++i) {
+RuntimeTesting.PrepareFunctionForOptimization(bimorphic_call_site);
+RuntimeTesting.PrepareFunctionForOptimization(megamorphic_call_site);
+RuntimeTesting.PrepareFunctionForOptimization(monomorphic_call_site_simple_ctor);
+RuntimeTesting.PrepareFunctionForOptimization(monomorphic_call_site_builtin_ctor);
+RuntimeTesting.PrepareFunctionForOptimization(monomorphic_call_site_derived_ctor);
+
+for (var i = 0; i < 10; ++i) {
+    bimorphic_call_site(simple_ctor0)
+    bimorphic_call_site(simple_ctor1)
+
+    megamorphic_call_site(simple_ctor0)
+    megamorphic_call_site(simple_ctor1)
+    megamorphic_call_site(simple_ctor2)
+
+    monomorphic_call_site_simple_ctor(simple_ctor0)
+
+    monomorphic_call_site_builtin_ctor()
+
+    monomorphic_call_site_derived_ctor()
+}
+
+RuntimeTesting.OptimizeFunctionOnNextCall(bimorphic_call_site);
+RuntimeTesting.OptimizeFunctionOnNextCall(megamorphic_call_site);
+RuntimeTesting.OptimizeFunctionOnNextCall(monomorphic_call_site_simple_ctor);
+RuntimeTesting.OptimizeFunctionOnNextCall(monomorphic_call_site_builtin_ctor);
+RuntimeTesting.OptimizeFunctionOnNextCall(monomorphic_call_site_derived_ctor);
+
+for (var i = 0; i < 2; ++i) {
     bimorphic_call_site(simple_ctor0)
     bimorphic_call_site(simple_ctor1)