[Test] Update tests to work with lazy feedback allocation.

This adds either %EnsureFeedbackVectorForFunction or
%PrepareFunctionForOptimization to allocate feedback vectors when testing
optimization, allocation sites, IC transitions etc.,

Bug: v8:8394
Change-Id: I6ad1b6d460e4abda693b326cddb87754e080a0a1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1593303
Commit-Queue: Mythri Alle <mythria@chromium.org>
Auto-Submit: Mythri Alle <mythria@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61212}

test/cctest/test-compiler.cc

@@ -784,7 +784,9 @@ TEST(InvocationCount) {
 
   CompileRun(
       "function bar() {};"
+      "%EnsureFeedbackVectorForFunction(bar);"
       "function foo() { return bar(); };"
+      "%EnsureFeedbackVectorForFunction(foo);"
       "foo();");
   Handle<JSFunction> foo = Handle<JSFunction>::cast(GetGlobalProperty("foo"));
   CHECK_EQ(1, foo->feedback_vector()->invocation_count());

test/debugger/debug/compiler/osr-typing-debug-change.js

@@ -37,6 +37,7 @@ function ChangeSmiConstantAndOsr() {
   }
   return j;
 }
+%PrepareFunctionForOptimization(ChangeSmiConstantAndOsr);
 var r1 = ChangeSmiConstantAndOsr();
 if (changed) {
   assertEquals("result", r1);
@@ -54,6 +55,7 @@ function ChangeFloatConstantAndOsr() {
   }
   return j;
 }
+%PrepareFunctionForOptimization(ChangeFloatConstantAndOsr);
 var r2 = ChangeFloatConstantAndOsr();
 if (changed) {
   assertEquals("result", r2);
@@ -72,6 +74,7 @@ function ChangeFloatVarAndOsr() {
   }
   return j;
 }
+%PrepareFunctionForOptimization(ChangeFloatVarAndOsr);
 var r3 = ChangeFloatVarAndOsr();
 if (changed) {
   assertEquals("result0.1", r3);
@@ -105,6 +108,7 @@ function ChangeIntVarAndOsr() {
   }
   return j;
 }
+%PrepareFunctionForOptimization(ChangeIntVarAndOsr);
 
 var r4 = ChangeIntVarAndOsr();
 if (changed) {

test/debugger/debug/regress/regress-5279.js

@@ -7,9 +7,13 @@ var Debug = debug.Debug;
 
 Debug.setListener(() => undefined);
 
-const myObj = {};
+function f() {
+  const myObj = {};
 
-for (let i = 0; i < 10; i++) {
+  for (let i = 0; i < 10; i++) {
     %OptimizeOsr();
     %ScheduleBreak();
+  }
 }
+%PrepareFunctionForOptimization(f);
+f()

test/debugger/debug/regress/regress-crbug-387599.js

@@ -9,6 +9,7 @@ Debug.setListener(function() {});
 function f() {
   for (var i = 0; i < 100; i++) %OptimizeOsr();
 }
+%PrepareFunctionForOptimization(f);
 
 Debug.setBreakPoint(f, 0, 0);
 f();

test/debugger/regress/regress-7421.js

@@ -23,6 +23,7 @@ function wrapper1() {
   }
   f1();
 }
+%PrepareFunctionForOptimization(wrapper1);
 
 function f2() {
   counter++;

test/mjsunit/array-constructor-feedback.js

@@ -67,6 +67,7 @@ function assertKind(expected, obj, name_opt) {
   function bar0(t) {
     return new t();
   }
+  %PrepareFunctionForOptimization(bar0);
   a = bar0(Array);
   a[0] = 3.5;
   b = bar0(Array);
@@ -77,7 +78,8 @@ function assertKind(expected, obj, name_opt) {
   assertOptimized(bar0);
   // bar0 should deopt
   b = bar0(Object);
-  assertUnoptimized(bar0)
+  assertUnoptimized(bar0);
+  %PrepareFunctionForOptimization(bar0);
   // When it's re-optimized, we should call through the full stub
   bar0(Array);
   %OptimizeFunctionOnNextCall(bar0);
@@ -99,6 +101,7 @@ function assertKind(expected, obj, name_opt) {
   function bar() {
     return new Array();
   }
+  %PrepareFunctionForOptimization(bar);
   a = bar();
   bar();
   %OptimizeFunctionOnNextCall(bar);
@@ -115,6 +118,7 @@ function assertKind(expected, obj, name_opt) {
 // map for Array in that context will be used.
 (function() {
   function bar() { return new Array(); }
+  %PrepareFunctionForOptimization(bar);
   bar();
   bar();
   %OptimizeFunctionOnNextCall(bar);
@@ -134,6 +138,7 @@ function assertKind(expected, obj, name_opt) {
 // should deal with arguments that create holey arrays.
 (function() {
   function bar(len) { return new Array(len); }
+  %PrepareFunctionForOptimization(bar);
   bar(0);
   bar(0);
   %OptimizeFunctionOnNextCall(bar);
@@ -153,6 +158,7 @@ function assertKind(expected, obj, name_opt) {
 // Test: Make sure that crankshaft continues with feedback for large arrays.
 (function() {
   function bar(len) { return new Array(len); }
+  %PrepareFunctionForOptimization(bar);
   var size = 100001;
   // Perform a gc, because we are allocating a very large array and if a gc
   // happens during the allocation we could lose our memento.

test/mjsunit/array-literal-transitions.js

@@ -79,6 +79,7 @@ function array_literal_test() {
   assertEquals(2, f0[1]);
   assertEquals(1, f0[0]);
 }
+%PrepareFunctionForOptimization(array_literal_test);
 
 %PrepareFunctionForOptimization(array_literal_test);
 for (var i = 0; i < 3; i++) {
@@ -109,6 +110,7 @@ function test_large_literal() {
                [0, 1, 2, 3, 4, 5, 2.5, 2.5, 2.5, 2.5, 2.5, 2.5,
                 new Object(), new Object(), new Object(), new Object()]);
 }
+%PrepareFunctionForOptimization(test_large_literal);
 
 %PrepareFunctionForOptimization(test_large_literal);
 for (var i = 0; i < 3; i++) {
@@ -124,6 +126,7 @@ function deopt_array(use_literal) {
     return new Array();
   }
 }
+%PrepareFunctionForOptimization(deopt_array);
 
 %PrepareFunctionForOptimization(deopt_array);
 deopt_array(false);
@@ -142,6 +145,7 @@ assertOptimized(deopt_array);
 function deopt_array_literal_all_smis(a) {
   return [0, 1, a];
 }
+%PrepareFunctionForOptimization(deopt_array_literal_all_smis);
 
 %PrepareFunctionForOptimization(deopt_array_literal_all_smis);
 deopt_array_literal_all_smis(2);
@@ -168,6 +172,7 @@ assertEquals(.5, array[2]);
 function deopt_array_literal_all_doubles(a) {
   return [0.5, 1, a];
 }
+%PrepareFunctionForOptimization(deopt_array_literal_all_doubles);
 
 %PrepareFunctionForOptimization(deopt_array_literal_all_doubles);
 deopt_array_literal_all_doubles(.5);

test/mjsunit/array-shift4.js

@@ -17,6 +17,7 @@ function makeArray() {
   return a;
 }
 
+%PrepareFunctionForOptimization(doShift);
 doShift(makeArray());
 doShift(makeArray());
 %OptimizeFunctionOnNextCall(doShift);

test/mjsunit/array-store-and-grow.js

@@ -197,6 +197,7 @@ assertEquals(0.5, array_store_1([], 0, 0.5));
     a[b] = c;
   }
 
+  %PrepareFunctionForOptimization(grow_store);
   a = new Array(1);
   grow_store(a,1,1);
   grow_store(a,2,1);
@@ -216,6 +217,7 @@ assertEquals(0.5, array_store_1([], 0, 0.5));
   function f(o, k, v) {
     o[k] = v;
   }
+  %PrepareFunctionForOptimization(f);
 
   a = [3.5];
   f(a, 1, "hi");  // DOUBLE packed array -> tagged packed grow
@@ -238,6 +240,7 @@ assertEquals(0.5, array_store_1([], 0, 0.5));
   function f(o, k, v) {
     o[k] = v;
   }
+  %PrepareFunctionForOptimization(f);
 
   a = [3.5];
   f(a, 0, "hi");  // DOUBLE packed array -> tagged packed grow

test/mjsunit/compiler/array-slice-clone.js

@@ -21,6 +21,7 @@
   }
 
   %PrepareFunctionForOptimization(slice0);
+  %PrepareFunctionForOptimization(slice);
 
   assertEquals(arr, slice());
   assertFalse(arr === slice());
@@ -29,7 +30,6 @@
 
   %OptimizeFunctionOnNextCall(slice0);
   assertEquals(slice(), slice0());
-  %PrepareFunctionForOptimization(slice);
   %OptimizeFunctionOnNextCall(slice);
 
   assertEquals(slice(), slice0());
@@ -415,6 +415,7 @@
 
   function test() {
     %PrepareFunctionForOptimization(slice0);
+    %PrepareFunctionForOptimization(slice);
 
     assertEquals(arr, slice());
     assertFalse(arr === slice());
@@ -423,7 +424,6 @@
 
     %OptimizeFunctionOnNextCall(slice0);
     assertEquals(slice(), slice0());
-    %PrepareFunctionForOptimization(slice);
     %OptimizeFunctionOnNextCall(slice);
 
     assertEquals(slice(), slice0());
@@ -455,13 +455,13 @@
   }
 
   function test() {
+    %PrepareFunctionForOptimization(slice0);
+    %PrepareFunctionForOptimization(slice);
     assertEquals(arr, slice());
     assertFalse(arr === slice());
     assertEquals(slice(), slice0());
     assertEquals(slice0(), slice());
 
-    %PrepareFunctionForOptimization(slice0);
-    %PrepareFunctionForOptimization(slice);
     %OptimizeFunctionOnNextCall(slice0);
     assertEquals(slice(), slice0());
     %OptimizeFunctionOnNextCall(slice);

test/mjsunit/compiler/native-context-specialization-hole-check.js

@@ -38,6 +38,7 @@ function f() {
   arr[500] = 20;
   arr[10] = arr[50];
 }
+%EnsureFeedbackVectorForFunction(f);
 
 function g() {
   f();

test/mjsunit/compiler/number-comparison-truncations.js

@@ -32,6 +32,7 @@
 (function() {
   // Produce a SpeculativeNumberEqual with Number feedback.
   function bar(x, y) { return x === y; }
+  %EnsureFeedbackVectorForFunction(bar);
   bar(0.1, 0.5);
   bar(-0, 100);
 
@@ -83,6 +84,7 @@
 (function() {
   // Produce a SpeculativeNumberLessThan with Number feedback.
   function bar(x, y) { return x < y; }
+  %EnsureFeedbackVectorForFunction(bar);
   bar(0.1, 0.5);
   bar(-0, 100);
 
@@ -134,6 +136,7 @@
 (function() {
   // Produce a SpeculativeNumberLessThanOrEqual with Number feedback.
   function bar(x, y) { return x <= y; }
+  %EnsureFeedbackVectorForFunction(bar);
   bar(0.1, 0.5);
   bar(-0, 100);
 

test/mjsunit/compiler/optimized-for-in.js

@@ -269,6 +269,7 @@ function osr_inner(t, limit) {
   }
   return r;
 }
+%PrepareFunctionForOptimization(osr_inner);
 
 function osr_outer(t, osr_after) {
   var r = 1;
@@ -281,6 +282,7 @@ function osr_outer(t, osr_after) {
   }
   return r;
 }
+%PrepareFunctionForOptimization(osr_outer);
 
 function osr_outer_and_deopt(t, osr_after) {
   var r = 1;
@@ -290,6 +292,7 @@ function osr_outer_and_deopt(t, osr_after) {
   }
   return r;
 }
+%PrepareFunctionForOptimization(osr_outer_and_deopt);
 
 function test_osr() {
   with ({}) {}  // Disable optimizations of this function.

test/mjsunit/compiler/osr-alignment.js

@@ -38,6 +38,7 @@ function f1() {
   }
   return sum;
 }
+%PrepareFunctionForOptimization(f1);
 
 function f2() {
   var sum = 0;
@@ -50,6 +51,7 @@ function f2() {
   }
   return sum;
 }
+%PrepareFunctionForOptimization(f2);
 
 function f3() {
   var sum = 0;
@@ -62,6 +64,7 @@ function f3() {
   }
   return sum;
 }
+%PrepareFunctionForOptimization(f3);
 
 function test1() {
   var j = 11;

test/mjsunit/compiler/osr-array-len.js

@@ -14,6 +14,7 @@ function fastaRandom(n, table) {
     n--;
   }
 }
+%PrepareFunctionForOptimization(fastaRandom);
 
 print("---BEGIN 1");
 assertEquals(undefined, fastaRandom(6, null));

test/mjsunit/compiler/osr-assert.js

@@ -41,4 +41,5 @@ function f(x, b, c) {
   return a + 4;
 }
 
+%PrepareFunctionForOptimization(f);
 assertEquals(55, f(5, "122", "1221"));

test/mjsunit/compiler/osr-block-scope-id.js

@@ -24,6 +24,7 @@ function foo() {
   result.push(out);
   return result;
 }
+%PrepareFunctionForOptimization(foo);
 
 
 function check() {

test/mjsunit/compiler/osr-block-scope.js

@@ -28,6 +28,7 @@ function test(expected, func, depth) {
   for (var depth = 1; depth < 4; depth++) {
     var body = nest(orig, name, depth);
     func = eval("(" + body + ")");
+    %PrepareFunctionForOptimization(func);
 
     assertEquals(expected, func());
     assertEquals(expected, func());
@@ -47,6 +48,7 @@ function foo() {
   }
   return result;
 }
+%PrepareFunctionForOptimization(foo);
 
 test(45, foo);
 
@@ -58,6 +60,7 @@ function bar() {
   }
   return sum;
 }
+%PrepareFunctionForOptimization(bar);
 
 test(45, bar);
 
@@ -71,6 +74,7 @@ function bon() {
     return sum;
   }
 }
+%PrepareFunctionForOptimization(bon);
 
 test(45, bon);
 
@@ -87,6 +91,7 @@ function row() {
   }
   return 11;
 }
+%PrepareFunctionForOptimization(row);
 
 test(7, row);
 
@@ -98,6 +103,7 @@ function nub() {
   }
   return i;
 }
+%PrepareFunctionForOptimization(nub);
 
 test(2, nub);
 
@@ -112,5 +118,6 @@ function kub() {
   }
   return result;
 }
+%PrepareFunctionForOptimization(kub);
 
 test(1, kub);

test/mjsunit/compiler/osr-for-let.js

@@ -24,6 +24,7 @@ function bar() {
   }
   return result;
 }
+%PrepareFunctionForOptimization(bar);
 
 test(4005, bar);
 
@@ -35,6 +36,7 @@ function baz() {
   }
   return sum;
 }
+%PrepareFunctionForOptimization(baz);
 
 test(2, baz);
 
@@ -46,6 +48,7 @@ function qux() {
   }
   return result;
 }
+%PrepareFunctionForOptimization(qux);
 
 test(1, qux);
 
@@ -60,6 +63,7 @@ function nux() {
   }
   return result;
 }
+%PrepareFunctionForOptimization(nux);
 
 test(1, nux);
 
@@ -78,5 +82,6 @@ function blo() {
   }
   return result;
 }
+%PrepareFunctionForOptimization(blo);
 
 test(4005, blo());

test/mjsunit/compiler/osr-forin-nested.js

@@ -18,6 +18,7 @@ function foo(t) {
   }
   return 5;
 }
+%PrepareFunctionForOptimization(foo);
 
 test(5, foo, {x:20});
 
@@ -31,5 +32,6 @@ function bar(t) {
   }
   return sum;
 }
+%PrepareFunctionForOptimization(bar);
 
 test(62, bar, {x:20,y:11});

test/mjsunit/compiler/osr-infinite.js

@@ -11,6 +11,7 @@ function thrower() {
   if (x == 5)  %OptimizeOsr(1);
   if (x == 10) throw "terminate";
 }
+%PrepareFunctionForOptimization(thrower);
 
 %NeverOptimizeFunction(thrower);  // Don't want to inline the thrower.
 %NeverOptimizeFunction(test);     // Don't want to inline the func into test.
@@ -25,18 +26,22 @@ function test(func) {
 function n1() {
   while (true) thrower();
 }
+%PrepareFunctionForOptimization(n1);
 
 function n2() {
   while (true) while (true) thrower();
 }
+%PrepareFunctionForOptimization(n2);
 
 function n3() {
   while (true) while (true) while (true) thrower();
 }
+%PrepareFunctionForOptimization(n3);
 
 function n4() {
   while (true) while (true) while (true) while (true) thrower();
 }
+%PrepareFunctionForOptimization(n4);
 
 function b1(a) {
   while (true) {
@@ -44,6 +49,7 @@ function b1(a) {
     if (a) break
   }
 }
+%PrepareFunctionForOptimization(b1);
 
 
 function b2(a) {
@@ -54,6 +60,7 @@ function b2(a) {
     }
   }
 }
+%PrepareFunctionForOptimization(b2);
 
 
 function b3(a) {
@@ -67,6 +74,7 @@ function b3(a) {
     }
   }
 }
+%PrepareFunctionForOptimization(b3);
 
 
 test(n1);

test/mjsunit/compiler/osr-labeled.js

@@ -17,6 +17,7 @@ function foo() {
   }
   return sum;
 }
+%PrepareFunctionForOptimization(foo);
 
 assertEquals(30, foo());
 assertEquals(30, foo());
@@ -36,6 +37,7 @@ function bar(a) {
   }
   return sum;
 }
+%PrepareFunctionForOptimization(bar);
 
 assertEquals(1, bar(1));
 assertEquals(1, bar(1));

test/mjsunit/compiler/osr-literals-adapted.js

@@ -11,6 +11,7 @@ function mod() {
     }
     return {blah: i};
   }
+  %PrepareFunctionForOptimization(f0);
 
   function f1(a) {
     for (var i = 0; i < 3; i = i + 1 | 0) {
@@ -18,6 +19,7 @@ function mod() {
     }
     return {blah: i};
   }
+  %PrepareFunctionForOptimization(f1);
 
   function f2(a,b) {
     for (var i = 0; i < 3; i = i + 1 | 0) {
@@ -25,6 +27,7 @@ function mod() {
     }
     return {blah: i};
   }
+  %PrepareFunctionForOptimization(f2);
 
   function f3(a,b,c) {
     for (var i = 0; i < 3; i = i + 1 | 0) {
@@ -32,6 +35,7 @@ function mod() {
     }
     return {blah: i};
   }
+  %PrepareFunctionForOptimization(f3);
 
   function f4(a,b,c,d) {
     for (var i = 0; i < 3; i = i + 1 | 0) {
@@ -39,6 +43,7 @@ function mod() {
     }
     return {blah: i};
   }
+  %PrepareFunctionForOptimization(f4);
 
   function bar() {
     assertEquals(3, f0().blah);

test/mjsunit/compiler/osr-literals.js

@@ -11,6 +11,7 @@ function mod() {
     }
     return {blah: i};
   }
+  %PrepareFunctionForOptimization(f0);
 
   function f1(a) {
     for (var i = 0; i < 3; i = i + 1 | 0) {
@@ -18,6 +19,7 @@ function mod() {
     }
     return {blah: i};
   }
+  %PrepareFunctionForOptimization(f1);
 
   function f2(a,b) {
     for (var i = 0; i < 3; i = i + 1 | 0) {
@@ -25,6 +27,7 @@ function mod() {
     }
     return {blah: i};
   }
+  %PrepareFunctionForOptimization(f2);
 
   function f3(a,b,c) {
     for (var i = 0; i < 3; i = i + 1 | 0) {
@@ -32,6 +35,7 @@ function mod() {
     }
     return {blah: i};
   }
+  %PrepareFunctionForOptimization(f3);
 
   function f4(a,b,c,d) {
     for (var i = 0; i < 3; i = i + 1 | 0) {
@@ -39,6 +43,7 @@ function mod() {
     }
     return {blah: i};
   }
+  %PrepareFunctionForOptimization(f4);
 
   function bar() {
     assertEquals(3, f0().blah);

test/mjsunit/compiler/osr-manual1.js

@@ -22,10 +22,12 @@ function gen(w) {  // defeat compiler cache.
     "} f" + num;
   return eval(src);
 }
+%PrepareFunctionForOptimization(gen);
 
 function check(x,a,b,c) {
   for (var i = 0; i < 3; i++) {
     var f = gen(i);
+    %PrepareFunctionForOptimization(f);
     assertEquals(x, f(a, b, c));
   }
 }

test/mjsunit/compiler/osr-manual2.js

@@ -26,6 +26,7 @@ function gen(w) {  // defeat compiler cache.
 function check(x,a,b,c) {
   for (var i = 0; i < 3; i++) {
     var f = gen(i);
+    %PrepareFunctionForOptimization(f);
     assertEquals(x, f(a, b, c));
   }
 }

test/mjsunit/compiler/osr-maze1.js

@@ -44,6 +44,7 @@ function bar(goal) {
   }
   return sum;
 }
+%PrepareFunctionForOptimization(bar);
 
 for (var i = 0; i < 13; i++) {
   %DeoptimizeFunction(bar);

test/mjsunit/compiler/osr-maze2.js

@@ -59,5 +59,6 @@ function gen(i) {
 
 for (var i = 1; i < 10; i++) {
   var f = gen(i);
+  %PrepareFunctionForOptimization(f);
   assertEquals(1979, f());
 }

test/mjsunit/compiler/osr-nested.js

@@ -40,6 +40,7 @@ function f() {
   }
   return sum;
 }
+%PrepareFunctionForOptimization(f);
 
 
 assertEquals(1450, f());

test/mjsunit/compiler/osr-nested2b.js

@@ -19,7 +19,7 @@ function f() {
   return sum;
 }
 
-
+%PrepareFunctionForOptimization(f);
 assertEquals(15000, f());
 assertEquals(15000, f());
 assertEquals(15000, f());

test/mjsunit/compiler/osr-one.js

@@ -16,5 +16,6 @@ function f(x) {
   }
   return sum;
 }
+%PrepareFunctionForOptimization(f);
 
 assertEquals(50, f(5));

test/mjsunit/compiler/osr-regex-id.js

@@ -13,6 +13,7 @@ function foo(a) {
   }
   return r;
 }
+%PrepareFunctionForOptimization(foo);
 
 function bar(a) {
   for (var i = 0; i < 10; i++) {
@@ -21,6 +22,7 @@ function bar(a) {
   }
   return r;
 }
+%PrepareFunctionForOptimization(bar);
 
 function baz(a) {
   for (var i = 0; i < 10; i++) {
@@ -28,6 +30,7 @@ function baz(a) {
   }
   return /\0/;
 }
+%PrepareFunctionForOptimization(baz);
 
 function qux(a) {
   for (var i = 0; i < 10; i++) {
@@ -39,6 +42,7 @@ function qux(a) {
   }
   return r;
 }
+%PrepareFunctionForOptimization(qux);
 
 function test(f) {
   // Test the reference equality of regex's created in OSR'd function.

test/mjsunit/compiler/osr-simple.js

@@ -15,6 +15,7 @@ function f() {
   }
   return sum;
 }
+%PrepareFunctionForOptimization(f);
 
 
 for (var i = 0; i < 2; i++) {

test/mjsunit/compiler/osr-try-catch.js

@@ -19,6 +19,7 @@ function SingleLoop() {
     }
   }
 }
+%PrepareFunctionForOptimization(SingleLoop);
 
 
 // These function could also fail if the exception handlers are not updated at
@@ -38,6 +39,7 @@ function EmptyBody() {
     a++;
   }
 }
+%PrepareFunctionForOptimization(EmptyBody);
 
 function NestedLoops() {
   for (var a = 0; a < 2; a++) {
@@ -52,6 +54,7 @@ function NestedLoops() {
     }
   }
 }
+%PrepareFunctionForOptimization(NestedLoops);
 
 
 SingleLoop();

test/mjsunit/compiler/osr-two.js

@@ -20,5 +20,6 @@ function f(x) {
   }
   return sum;
 }
+%PrepareFunctionForOptimization(f);
 
 assertEquals(500, f(5));

test/mjsunit/compiler/osr-while-let.js

@@ -35,6 +35,7 @@ function foo() {
   }
   return result;
 }
+%PrepareFunctionForOptimization(foo);
 
 test(1, foo);
 
@@ -54,5 +55,6 @@ function smo() {
   }
   return result;
 }
+%PrepareFunctionForOptimization(smo);
 
 test(11, smo);

test/mjsunit/compiler/regress-607493.js

@@ -18,6 +18,7 @@
     }
   }
 
+  %PrepareFunctionForOptimization(g);
   g();
 })();
 
@@ -33,5 +34,6 @@
     }
   }
 
+  %PrepareFunctionForOptimization(g);
   g();
 })();

test/mjsunit/compiler/regress-645851.js

@@ -16,4 +16,5 @@ function f() {
   return sum;
 }
 
+%PrepareFunctionForOptimization(f);
 f();

test/mjsunit/compiler/regress-650215.js

@@ -13,4 +13,5 @@ function f() {
   return x;
 }
 
+%PrepareFunctionForOptimization(f);
 assertEquals(0, f());

test/mjsunit/compiler/regress-669517.js

@@ -6,12 +6,14 @@
 
 (function() {
   "use asm";
-  return function() {
+  var f = function() {
     for (var i = 0; i < 10; i++) {
       if (i == 5) {
         %OptimizeOsr();
       }
     }
     with (Object());
-  }
+  };
+  %PrepareFunctionForOptimization(f);
+  return f;
 })()();

test/mjsunit/compiler/regress-673244.js

@@ -12,4 +12,5 @@ function f() {
   }
 }
 
+%PrepareFunctionForOptimization(f);
 f();

test/mjsunit/compiler/regress-803022.js

@@ -13,4 +13,5 @@ function foo() {
   }
 }
 
+%PrepareFunctionForOptimization(foo);
 foo();

test/mjsunit/compiler/regress-919754.js

@@ -12,4 +12,5 @@ function f(get, ...a) {
   }
   return get();
 }
+%PrepareFunctionForOptimization(f);
 assertThrows(f);

test/mjsunit/compiler/regress-958350.js

@@ -11,6 +11,7 @@ function foo(o) {
   }
 }
 
+%PrepareFunctionForOptimization(foo);
 foo([1]);
 foo([1]);
 %OptimizeFunctionOnNextCall(foo);

test/mjsunit/compiler/try-osr.js

@@ -13,6 +13,7 @@ function OSRInsideTry(x) {
   }
   return x + 2;
 }
+%PrepareFunctionForOptimization(OSRInsideTry);
 assertEquals(24, OSRInsideTry(23));
 
 
@@ -25,6 +26,7 @@ function OSRInsideCatch(x) {
   }
   return x + 2;
 }
+%PrepareFunctionForOptimization(OSRInsideCatch);
 assertEquals(24, OSRInsideCatch(23));
 
 
@@ -37,6 +39,7 @@ function OSRInsideFinally_Return(x) {
   }
   return x + 2;
 }
+%PrepareFunctionForOptimization(OSRInsideFinally_Return);
 assertEquals(24, OSRInsideFinally_Return(23));
 
 
@@ -48,4 +51,5 @@ function OSRInsideFinally_ReThrow(x) {
   }
   return x + 2;
 }
+%PrepareFunctionForOptimization(OSRInsideFinally_ReThrow);
 assertThrows("OSRInsideFinally_ReThrow(new Error)", Error);

test/mjsunit/concurrent-initial-prototype-change.js

@@ -44,6 +44,7 @@ if (!%IsConcurrentRecompilationSupported()) {
 function f1(a, i) {
   return a[i] + 0.5;
 }
+%PrepareFunctionForOptimization(f1);
 
 %PrepareFunctionForOptimization(f1);
 var arr = [0.0,,2.5];

test/mjsunit/const-field-tracking.js

@@ -99,6 +99,7 @@ function TestLoadFromConstantFieldOfAPrototype(the_value, other_value) {
 
   // Ensure O.prototype is in fast mode by loading from its field.
   function warmup() { return new O().v; }
+  %EnsureFeedbackVectorForFunction(warmup);
   warmup(); warmup(); warmup();
   assertTrue(%HasFastProperties(O.prototype));
 

test/mjsunit/deopt-recursive-eager-once.js

@@ -14,6 +14,7 @@ function foo(i, deopt = false) {
         foo(i - 1, deopt);
     }
 }
+%PrepareFunctionForOptimization(foo);
 
 assertEquals(0, %GetDeoptCount(foo));
 

test/mjsunit/deopt-recursive-lazy-once.js

@@ -14,6 +14,7 @@ function foo(i, deopt = false) {
         foo(i - 1, deopt);
     }
 }
+%PrepareFunctionForOptimization(foo);
 
 %PrepareFunctionForOptimization(foo);
 assertEquals(0, %GetDeoptCount(foo));

test/mjsunit/deopt-recursive-soft-once.js

@@ -18,6 +18,7 @@ function foo(i, deopt = false, deoptobj = null) {
 
 assertEquals(0, %GetDeoptCount(foo));
 
+%PrepareFunctionForOptimization(foo);
 foo(10);
 foo(10);
 %OptimizeFunctionOnNextCall(foo);

test/mjsunit/deopt-with-fp-regs.js

@@ -75,6 +75,7 @@ function test(a, b, c, d, e, v) {
   assertEquals(24,   d);
   assertEquals(37.5, e);
 }
+%PrepareFunctionForOptimization(test);
 
 
 test(10.0, 20.0, 30.0, 40.0, 50.0, 1.5);

test/mjsunit/deserialize-optimize-inner.js

@@ -6,6 +6,7 @@
 
 function f(x, y) { return x + y; }
 
+%PrepareFunctionForOptimization(f);
 assertEquals(1, f(0, 1));
 assertEquals(5, f(2, 3));
 %OptimizeFunctionOnNextCall(f);

test/mjsunit/div-mul-minus-one.js

@@ -30,7 +30,7 @@
 function div(g) {
   return (g/-1) ^ 1
 }
-
+%PrepareFunctionForOptimization(div);
 var kMinInt = 1 << 31;
 var expected_MinInt = div(kMinInt);
 var expected_minus_zero = div(0);
@@ -42,6 +42,7 @@ function mul(g) {
   return (g * -1) ^ 1
 }
 
+%PrepareFunctionForOptimization(mul);
 expected_MinInt = mul(kMinInt);
 expected_minus_zero = mul(0);
 %OptimizeFunctionOnNextCall(mul);

test/mjsunit/elements-transition-hoisting.js

@@ -45,6 +45,7 @@ function test_wrapper() {
     } while (--count > 0);
   }
 
+  %PrepareFunctionForOptimization(testDoubleConversion4);
   testDoubleConversion4(new Array(5));
   testDoubleConversion4(new Array(5));  // Call twice to make sure that second
                                         // store is a transition and not
@@ -71,6 +72,7 @@ function test_wrapper() {
     } while (--count > 0);
   }
 
+  %PrepareFunctionForOptimization(testExactMapHoisting);
   testExactMapHoisting(new Array(5));
   testExactMapHoisting(new Array(5));  // Call twice to make sure that second
                                        // store is a transition and not
@@ -102,6 +104,7 @@ function test_wrapper() {
     } while (--count > 0);
   }
 
+  %PrepareFunctionForOptimization(testExactMapHoisting2);
   testExactMapHoisting2(new Array(5));
   testExactMapHoisting2(new Array(5));  // Call twice to make sure that second
                                         // store is a transition and not
@@ -129,6 +132,7 @@ function test_wrapper() {
     } while (--count > 0);
   }
 
+  %PrepareFunctionForOptimization(testExactMapHoisting3);
   var add_transition = new Array(5);
   add_transition.foo = 0;
   add_transition[0] = new Object();  // For FAST_ELEMENT transition to be created
@@ -155,6 +159,7 @@ function test_wrapper() {
   }
 
   /*
+  %PrepareFunctionForOptimization(testDominatingTransitionHoisting1);
   testDominatingTransitionHoisting1(new Array(5));
   testDominatingTransitionHoisting1(new Array(5));  // Call twice to make sure
                                                     // that second store is a
@@ -180,6 +185,7 @@ function test_wrapper() {
     } while (--count > 3);
   }
 
+  %PrepareFunctionForOptimization(testHoistingWithSideEffect);
   testHoistingWithSideEffect(new Array(5));
   testHoistingWithSideEffect(new Array(5));  // Call twice to make sure that
                                              // second store is a transition and
@@ -203,6 +209,7 @@ function test_wrapper() {
     } while (--count > 3);
   }
 
+  %PrepareFunctionForOptimization(testStraightLineDupeElinination);
   testStraightLineDupeElinination(new Array(0, 0, 0, 0, 0),0,0,0,0,.5);
   testStraightLineDupeElinination(new Array(0, 0, 0, 0, 0),0,0,0,.5,0);
   testStraightLineDupeElinination(new Array(0, 0, 0, 0, 0),0,0,.5,0,0);

test/mjsunit/ensure-growing-store-learns.js

@@ -30,6 +30,7 @@
   assertUnoptimized(foo);
   assertTrue(%HasDictionaryElements(a));
 
+  %PrepareFunctionForOptimization(foo);
   var b = [];
   foo(b, 1);
   foo(b, 2);

test/mjsunit/field-type-tracking.js

@@ -15,6 +15,7 @@
   function readA(x) {
     return x.a;
   }
+  %PrepareFunctionForOptimization(readA);
   var a = new A();
   assertUnoptimized(readA);
   readA(a); readA(a); readA(a);
@@ -26,6 +27,7 @@
   b.b = o;
   assertEquals(readA(b), o);
   assertUnoptimized(readA);
+  %PrepareFunctionForOptimization(readA);
   %OptimizeFunctionOnNextCall(readA);
   assertEquals(readA(a), o);
   assertOptimized(readA);
@@ -37,6 +39,7 @@
     return x.a;
   }
   assertUnoptimized(readAFromB);
+  %PrepareFunctionForOptimization(readAFromB);
   readAFromB(b); readAFromB(b); readAFromB(b);
   %OptimizeFunctionOnNextCall(readAFromB);
   assertEquals(readAFromB(b), o);
@@ -49,6 +52,8 @@
   c.a = [1];
   assertUnoptimized(readA);
   assertUnoptimized(readAFromB);
+  %PrepareFunctionForOptimization(readA);
+  %PrepareFunctionForOptimization(readAFromB);
   assertEquals(readA(a), o);
   assertEquals(readA(b), o);
   assertEquals(readA(c), [1]);
@@ -77,7 +82,9 @@
   A.prototype = {y: 20};
   function B(o) { return o.a.y; }
   function C() { this.a = new A(); }
+  %EnsureFeedbackVectorForFunction(C);
 
+  %PrepareFunctionForOptimization(B);
   B(new C());
   B(new C());
   %OptimizeFunctionOnNextCall(B);
@@ -88,6 +95,7 @@
   assertEquals(10, B(c));
   assertUnoptimized(B);
 
+  %PrepareFunctionForOptimization(B);
   var c = new C();
   %OptimizeFunctionOnNextCall(B);
   assertEquals(20, B(c));
@@ -116,6 +124,7 @@
   var f2 = new Foo({x: 2});
   var f3 = new Foo({x: 3});
   function readX(f) { return f.x.x; }
+  %PrepareFunctionForOptimization(readX);
   assertEquals(readX(f1), 1);
   assertEquals(readX(f2), 2);
   assertUnoptimized(readX);
@@ -123,6 +132,7 @@
   assertEquals(readX(f3), 3);
   assertOptimized(readX);
   function writeX(f, x) { f.x = x; }
+  %PrepareFunctionForOptimization(writeX);
   writeX(f1, {x: 11});
   writeX(f2, {x: 22});
   assertUnoptimized(writeX);
@@ -146,6 +156,7 @@
   var f2 = new Narf(2);
   var f3 = new Narf(3);
   function baz(f, y) { f.y = y; }
+  %PrepareFunctionForOptimization(baz);
   baz(f1, {b: 9});
   baz(f2, {b: 9});
   baz(f2, {b: 9});
@@ -161,6 +172,7 @@
   function readA(o) { return o.x.a; }
   var f = new Foo({a:1});
   var b = new Bar({a:2});
+  %PrepareFunctionForOptimization(readA);
   assertEquals(readA(f), 1);
   assertEquals(readA(b), 2);
   assertEquals(readA(f), 1);

test/mjsunit/ignition/osr-from-bytecode.js

@@ -9,4 +9,5 @@ function f() {
     if (i == 5) %OptimizeOsr();
   }
 }
+%EnsureFeedbackVectorForFunction(f);
 f();

test/mjsunit/ignition/osr-from-generator.js

@@ -11,6 +11,7 @@
     }
     return 23;
   }
+  %PrepareFunctionForOptimization(gen1);
   var g = gen1();
   assertEquals({ value:23, done:true }, g.next());
 })();
@@ -23,6 +24,7 @@
     }
     return 23;
   }
+  %PrepareFunctionForOptimization(gen2);
   var g = gen2();
   assertEquals({ value:0, done:false }, g.next());
   assertEquals({ value:1, done:false }, g.next());
@@ -38,6 +40,7 @@
     }
     return 23;
   }
+  %PrepareFunctionForOptimization(gen3);
   var g = gen3();
   assertEquals({ value:0, done:false }, g.next());
   assertEquals({ value:1, done:false }, g.next());
@@ -57,6 +60,7 @@
     }
     return 23;
   }
+  %PrepareFunctionForOptimization(gen4);
   var g = gen4();
   assertEquals({ value:0, done:false }, g.next());
   assertEquals({ value:1, done:false }, g.next());

test/mjsunit/ignition/throw-if-hole.js

@@ -10,6 +10,10 @@ function f(b) {
  }
 }
 
+f(0);
+assertThrows(() => {f(1)}, ReferenceError);
+
+%PrepareFunctionForOptimization(f);
 f(0);
 f(0);
 %OptimizeFunctionOnNextCall(f);

test/mjsunit/ignition/throw-if-not-hole.js

@@ -15,7 +15,13 @@ class B extends A {
     }
   }
 }
+// No feedback case
+test = new B(0);
+assertThrows(() => {new B(1)}, ReferenceError);
 
+// Ensure Feedback
+%PrepareFunctionForOptimization(B);
+%EnsureFeedbackVectorForFunction(A);
 test = new B(0);
 test = new B(0);
 assertThrows(() => {new B(1)}, ReferenceError);

test/mjsunit/ignition/throw-super-not-called.js

@@ -15,6 +15,10 @@ class B extends A {
   }
 }
 
+test = new B(1);
+assertThrows(() => {new B(0)}, ReferenceError);
+
+%PrepareFunctionForOptimization(B);
 test = new B(1);
 test = new B(1);
 %OptimizeFunctionOnNextCall(B);

test/mjsunit/interrupt-budget-override.js

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// Flags: --opt --interrupt-budget=100 --allow-natives-syntax
+// Flags: --opt --interrupt-budget=100 --budget-for-feedback-vector-allocation=10 --allow-natives-syntax
 
 function f() {
   let s = 0;

test/mjsunit/keyed-load-hole-to-undefined.js

@@ -11,6 +11,7 @@
 
 function foo(a, i) { return a[i]; }
 
+%PrepareFunctionForOptimization(foo);
 var a = ['one', , 'three'];
 foo(a, 0);
 foo(a, 0);

test/mjsunit/keyed-load-with-string-key.js

@@ -36,6 +36,7 @@ function get(obj, key) {
   return obj[key];
 }
 
+%PrepareFunctionForOptimization(get);
 get(o, "foo");
 get(o, "foo");
 get(o, "foo");

test/mjsunit/keyed-load-with-symbol-key.js

@@ -37,6 +37,7 @@ function get(obj, key) {
   return obj[key];
 }
 
+%PrepareFunctionForOptimization(get);
 assertEquals("bar", get(o, s));
 get(o, s);
 get(o, s);

test/mjsunit/math-floor-of-div-minus-zero.js

@@ -34,6 +34,7 @@ function test_div_no_deopt_minus_zero() {
   assertTrue(0 === (Math.floor((zero_in_array[0] | 0) / -1) | 0));
 }
 
+%PrepareFunctionForOptimization(test_div_no_deopt_minus_zero);
 test_div_no_deopt_minus_zero();
 test_div_no_deopt_minus_zero();
 %OptimizeFunctionOnNextCall(test_div_no_deopt_minus_zero);

test/mjsunit/never-optimize.js

@@ -29,6 +29,7 @@
 
 function o1() {
 }
+%PrepareFunctionForOptimization(o1);
 
 o1(); o1();
 %OptimizeFunctionOnNextCall(o1);
@@ -45,6 +46,8 @@ function u1() {
 function u2() {
   u1();
 }
+%PrepareFunctionForOptimization(u1);
+%PrepareFunctionForOptimization(u2);
 
 u1(); u1();
 u2(); u2();

test/mjsunit/object-seal.js

@@ -220,9 +220,11 @@ assertDoesNotThrow(function() { objControl.splice(0, 0, 100, 101, 102); });
 // Verify that crankshaft still does the right thing.
 obj = [1, 2, 3];
 
-push_call = function(a) { a.push(1000); return a; }
+push_call = function(a) { a.push(1000); return a; };
+%PrepareFunctionForOptimization(push_call);
 // Include a call site that doesn't have a custom built-in.
-var shift_call = function(a) { a.shift(1000); return a; }
+var shift_call = function(a) { a.shift(1000); return a; };
+%PrepareFunctionForOptimization(shift_call);
 for (var i = 0; i < 3; i++) {
   push_call(obj);
   shift_call(obj);

test/mjsunit/optimized-map.js

@@ -20,7 +20,8 @@ var c = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25];
         a.abc = 25;
       }
       return v;
-    }
+    };
+    %EnsureFeedbackVectorForFunction(callback);
     a.map(callback);
   };
   %PrepareFunctionForOptimization(eagerDeoptInCalled);
@@ -41,7 +42,8 @@ var c = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25];
       result += v;
       a.length = (i == 13 && deopt) ? 25 : 27;
       return v;
-    }
+    };
+    %EnsureFeedbackVectorForFunction(callback);
     a.map(callback);
   };
   %PrepareFunctionForOptimization(eagerDeoptInCalled);
@@ -65,7 +67,8 @@ var c = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25];
         a_noescape.length = 25;
       }
       return v;
-    }
+    };
+    %EnsureFeedbackVectorForFunction(callback);
     a_noescape.map(callback);
   };
   %PrepareFunctionForOptimization(eagerDeoptInCalled);
@@ -93,6 +96,7 @@ var c = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25];
       gc(); gc();
       return v;
     };
+    %EnsureFeedbackVectorForFunction(callback);
     %NeverOptimizeFunction(callback);
     b.map(callback);
   };
@@ -117,6 +121,7 @@ var c = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25];
       }
       return 2 * v;
     };
+    %EnsureFeedbackVectorForFunction(callback);
     %NeverOptimizeFunction(callback);
     return b.map(callback);
   };
@@ -137,7 +142,8 @@ var c = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25];
           %DeoptimizeNow();
       }
       return v;
-    }
+    };
+    %EnsureFeedbackVectorForFunction(callback);
     b.map(callback);
   };
   %PrepareFunctionForOptimization(lazyDeopt);
@@ -161,6 +167,7 @@ var c = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25];
       }
       return v;
     };
+    %EnsureFeedbackVectorForFunction(callback);
     %NeverOptimizeFunction(callback);
     b.map(callback);
   };
@@ -186,7 +193,8 @@ var c = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25];
           gc();
       }
       return v;
-    }
+    };
+    %EnsureFeedbackVectorForFunction(callback);
     c.map(callback);
   };
   %PrepareFunctionForOptimization(lazyDeopt);
@@ -211,7 +219,8 @@ var c = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25];
         throw("a");
       }
       return v;
-    }
+    };
+    %EnsureFeedbackVectorForFunction(callback);
     try {
       c.map(callback);
     } catch (e) {
@@ -241,6 +250,7 @@ var c = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25];
       }
       return v;
     };
+    %EnsureFeedbackVectorForFunction(callback);
     %NeverOptimizeFunction(callback);
     try {
       c.map(callback);
@@ -270,6 +280,7 @@ var c = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25];
       }
       return 2 * v;
     };
+    %EnsureFeedbackVectorForFunction(callback);
     %NeverOptimizeFunction(callback);
     var result = 0;
     try {
@@ -303,6 +314,7 @@ var c = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25];
       }
       return v;
     };
+    %EnsureFeedbackVectorForFunction(callback);
     var o = [1,2,3];
     b.map(callback);
   };
@@ -326,6 +338,7 @@ var c = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25];
       }
       return v;
     };
+    %EnsureFeedbackVectorForFunction(callback);
     %NeverOptimizeFunction(callback);
     var o = [1,2,3];
     b.map(callback);
@@ -352,6 +365,7 @@ var c = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25];
       }
       return v;
     };
+    %EnsureFeedbackVectorForFunction(callback);
     var o = [1,2,3];
     b.map(callback);
   };
@@ -375,6 +389,7 @@ var c = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25];
       }
       return v;
     };
+    %EnsureFeedbackVectorForFunction(callback);
     a.map(callback);
   };
   %PrepareFunctionForOptimization(lazyDeopt);
@@ -408,7 +423,8 @@ var c = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25];
         // array.
         return v;
       }
-    }
+    };
+    %EnsureFeedbackVectorForFunction(callback);
     return c.map(callback);
   };
   %PrepareFunctionForOptimization(to_double);
@@ -439,7 +455,8 @@ var c = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25];
         // Later, to PACKED_ELEMENTS.
         return v + 'hello';
       }
-    }
+    };
+    %EnsureFeedbackVectorForFunction(callback);
     return c.map(callback);
   };
   %PrepareFunctionForOptimization(to_fast);
@@ -460,6 +477,7 @@ var c = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25];
   function double_results() {
     // TurboFan recognizes the result is a double.
     var callback = v => v + 0.5;
+    %EnsureFeedbackVectorForFunction(callback);
     return a.map(callback);
   }
   %PrepareFunctionForOptimization(double_results);

test/mjsunit/parallel-optimize-disabled.js

@@ -43,6 +43,8 @@ function f(x) {
   g();
 }
 
+%PrepareFunctionForOptimization(f);
+%PrepareFunctionForOptimization(g);
 f();
 f();
 %OptimizeFunctionOnNextCall(f);

test/mjsunit/regress/binop-in-effect-context-deopt.js

@@ -34,6 +34,7 @@
     for (var i = 0; osr && i < 2; i++) %OptimizeOsr();
     return result;
   }
+  %PrepareFunctionForOptimization(f);
 
   assertEquals("result", f(true, 3, false));
   assertEquals("result", f(true, 3, false));
@@ -58,6 +59,7 @@
   function f() {
     return g(void(h() + ""));
   };
+  %PrepareFunctionForOptimization(f);
 
   f();
   %OptimizeFunctionOnNextCall(f);

test/mjsunit/regress/call-function-in-effect-context-deopt.js

@@ -35,6 +35,7 @@ function f(deopt, osr) {
   return result;
 }
 
+%PrepareFunctionForOptimization(f);
 assertEquals("result", f(3, false));
 assertEquals("result", f(3, false));
 %OptimizeFunctionOnNextCall(f);

test/mjsunit/regress/regress-1118.js

@@ -31,21 +31,25 @@
 // should be able to construct a receiver from all optimized stack frames.
 
 function A() { }
+%EnsureFeedbackVectorForFunction(A);
 A.prototype.f = function() { }
 
 function B() { }
+%EnsureFeedbackVectorForFunction(B);
 
 var o = new A();
 
 // This function throws if o does not have an f property, and should not be
 // inlined.
 function g() { try { return o.f(); } finally { }}
+%EnsureFeedbackVectorForFunction(g);
 
 // This function should be optimized via OSR.
 function h() {
   for (var i = 0; i < 10; i++) %OptimizeOsr();
   g();
 }
+%PrepareFunctionForOptimization(h);
 
 h();
 o = new B();

test/mjsunit/regress/regress-1257.js

@@ -31,4 +31,5 @@ function foo () {
     };
 }
 
+%PrepareFunctionForOptimization(foo);
 foo();

test/mjsunit/regress/regress-2132.js

@@ -31,6 +31,7 @@ function mul(x, y) {
   return (x * y) | 0;
 }
 
+%PrepareFunctionForOptimization(mul);
 mul(0, 0);
 mul(0, 0);
 %OptimizeFunctionOnNextCall(mul);
@@ -41,6 +42,7 @@ function div(x, y) {
   return (x / y) | 0;
 }
 
+%PrepareFunctionForOptimization(div);
 div(4, 2);
 div(4, 2);
 %OptimizeFunctionOnNextCall(div);

test/mjsunit/regress/regress-2339.js

@@ -35,8 +35,10 @@ function simple_two_args(always_zero, always_undefined) {
   var always_five = always_undefined || 5;
   return always_zero * always_five * .5;
 }
+%EnsureFeedbackVectorForFunction(simple_two_args);
 
 
+%PrepareFunctionForOptimization(simple);
 simple();
 simple();
 %OptimizeFunctionOnNextCall(simple);

test/mjsunit/regress/regress-2451.js

@@ -33,6 +33,7 @@ function f() {
   assertEquals(-1.0, Math.round(-0.5000000000000001));
 }
 
+%PrepareFunctionForOptimization(f);
 f();
 f();
 %OptimizeFunctionOnNextCall(f);

test/mjsunit/regress/regress-252797.js

@@ -55,6 +55,7 @@ function callConstantFunctionOnPrototype(obj) {
   obj.holderMethod();
 }
 
+%PrepareFunctionForOptimization(callConstantFunctionOnPrototype);
 callConstantFunctionOnPrototype(receiver);
 callConstantFunctionOnPrototype(receiver);
 %OptimizeFunctionOnNextCall(callConstantFunctionOnPrototype);

test/mjsunit/regress/regress-2618.js

@@ -25,7 +25,7 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-// Flags: --use-osr --allow-natives-syntax --ignition-osr --opt
+// Flags: --use-osr --allow-natives-syntax --opt
 // Flags: --no-always-opt
 
 // Can't OSR with always-opt or in Lite mode.
@@ -50,6 +50,7 @@ function f() {
   } while (false);
 }
 
+%PrepareFunctionForOptimization(f);
 f();
 
 function g() {
@@ -85,4 +86,5 @@ function g() {
   } while (false);
 }
 
+%PrepareFunctionForOptimization(g);
 g();

test/mjsunit/regress/regress-298269.js

@@ -14,6 +14,7 @@ function Cb(a, trigger) {
   }
   return g;
 }
+%PrepareFunctionForOptimization(Cb);
 
 var s1 = "long string to make cons string 1";
 var s2 = "long string to make cons string 2";

test/mjsunit/regress/regress-2989.js

@@ -33,7 +33,7 @@ if (isNeverOptimizeLiteMode()) {
       x = 42;
       return f.arguments[0];
   }
-
+  %EnsureFeedbackVectorForFunction(f);
   f(0);
   %OptimizeFunctionOnNextCall(f);
   assertEquals(42, f(0));

test/mjsunit/regress/regress-3032.js

@@ -27,6 +27,10 @@
 
 // Flags: --allow-natives-syntax
 
-for (var i = 0; i < 10; i++) { if (i == 5) %OptimizeOsr(); }
-var xl = 4096;
-var z = i % xl;
+function f() {
+  for (var i = 0; i < 10; i++) { if (i == 5) %OptimizeOsr(); }
+  var xl = 4096;
+  var z = i % xl;
+}
+%PrepareFunctionForOptimization(f);
+f();

test/mjsunit/regress/regress-3650-3.js

@@ -10,6 +10,7 @@ function foo(a) {
   }
 }
 
+%PrepareFunctionForOptimization(foo);
 foo([1,2,3]);
 foo([2,3,4]);
 %OptimizeFunctionOnNextCall(foo);

test/mjsunit/regress/regress-3709.js

@@ -18,6 +18,7 @@ function foo() {
   }
 }
 
+%PrepareFunctionForOptimization(foo);
 foo();
 foo();
 %OptimizeFunctionOnNextCall(foo);

test/mjsunit/regress/regress-379770.js

@@ -10,6 +10,7 @@ function foo(obj) {
   counter += obj;
   return counter;
 }
+%PrepareFunctionForOptimization(foo);
 
 function bar() {
   var a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12];

test/mjsunit/regress/regress-385565.js

@@ -43,6 +43,7 @@ Array.prototype.f = function() {
 var o1 = {m: 1};
 var o2 = {a: 0, m:1};
 
+%PrepareFunctionForOptimization(callsFReceiver);
 var r1 = callsFReceiver(o1);
 callsFReceiver(o1);
 %OptimizeFunctionOnNextCall(callsFReceiver);
@@ -56,6 +57,7 @@ assertEquals(1, r1);
 assertTrue(r1 === r2);
 assertTrue(r2 === r3);
 
+%OptimizeFunctionOnNextCall(callsFReceiver);
 r1 = callsFReceiver(o1);
 callsFReceiver(o1);
 %OptimizeFunctionOnNextCall(callsFReceiver);

test/mjsunit/regress/regress-4121.js

@@ -23,6 +23,7 @@ function literals_sharing_test(warmup, optimize) {
     // propagated to the next closure.
     assertTrue(%HasDoubleElements(a));
   };
+  %EnsureFeedbackVectorForFunction(closure);
   if (optimize) %OptimizeFunctionOnNextCall(closure);
   closure();
 }

test/mjsunit/regress/regress-4380.js

@@ -9,6 +9,7 @@ function bar(a) {
   return x == undefined;
 }
 
+%PrepareFunctionForOptimization(bar);
 // Make the keyed load be polymorphic on holey smi and holey fast.
 bar([, 2, 3]);
 bar([, 'two', 'three']);

test/mjsunit/regress/regress-5252.js

@@ -11,6 +11,7 @@
       return 23;
     } while(false)
   }
+  %PrepareFunctionForOptimization(f);
   assertEquals(23, f());
   assertEquals(23, f());
 })();
@@ -24,6 +25,7 @@
     } while(false)
     return 999;
   }
+  %PrepareFunctionForOptimization(g);
   var gen = g();
   assertEquals({ value:23, done:false }, gen.next());
   assertEquals({ value:42, done:false }, gen.next());

test/mjsunit/regress/regress-5262.js

@@ -20,6 +20,7 @@ function f(osr_and_recurse) {
   }
   return 65;
 }
+%PrepareFunctionForOptimization(f);
 assertEquals(65, f(false));
 assertEquals(65, f(false));
 assertEquals(42, f(true));

test/mjsunit/regress/regress-612412.js

@@ -15,6 +15,7 @@ var f = (function() {
     }
   }
 })();
+%PrepareFunctionForOptimization(f);
 
 g = (function() { f((Array), counter()); });
 g();

test/mjsunit/regress/regress-6607-1.js

@@ -8,6 +8,7 @@ function get(a, i) {
   return a[i];
 }
 
+%PrepareFunctionForOptimization(get);
 get([1,,3], 0);
 get([1,,3], 2);
 %OptimizeFunctionOnNextCall(get);

test/mjsunit/regress/regress-6607-2.js

@@ -8,6 +8,7 @@ function get(a, i) {
   return a[i];
 }
 
+%PrepareFunctionForOptimization(get);
 get([1,,3], 0);
 get([1,,3], 2);
 %OptimizeFunctionOnNextCall(get);

test/mjsunit/regress/regress-6941.js

@@ -7,6 +7,7 @@
 function foo(x) {
   return Symbol.iterator == x;
 }
+%PrepareFunctionForOptimization(foo);
 
 function main() {
   foo(Symbol());

test/mjsunit/regress/regress-6948.js

@@ -8,6 +8,7 @@ var o = {};
 
 function foo(s) { return o[s]; }
 
+%PrepareFunctionForOptimization(foo);
 var s = 'c' + 'c';
 foo(s);
 foo(s);

test/mjsunit/regress/regress-6989.js

@@ -7,6 +7,7 @@
 (function() {
   function foo(o) { o["x"] = 1; }
 
+  %PrepareFunctionForOptimization(foo);
   assertThrows(() => foo(undefined));
   assertThrows(() => foo(undefined));
   %OptimizeFunctionOnNextCall(foo);
@@ -17,6 +18,7 @@
 (function() {
   function foo(o) { o["x"] = 1; }
 
+  %PrepareFunctionForOptimization(foo);
   assertThrows(() => foo(null));
   assertThrows(() => foo(null));
   %OptimizeFunctionOnNextCall(foo);
@@ -27,6 +29,7 @@
 (function() {
   function foo(o) { return o["x"]; }
 
+  %PrepareFunctionForOptimization(foo);
   assertThrows(() => foo(undefined));
   assertThrows(() => foo(undefined));
   %OptimizeFunctionOnNextCall(foo);
@@ -37,6 +40,7 @@
 (function() {
   function foo(o) { return o["x"]; }
 
+  %PrepareFunctionForOptimization(foo);
   assertThrows(() => foo(null));
   assertThrows(() => foo(null));
   %OptimizeFunctionOnNextCall(foo);
@@ -47,6 +51,7 @@
 (function() {
   function foo(o) { o.x = 1; }
 
+  %PrepareFunctionForOptimization(foo);
   assertThrows(() => foo(undefined));
   assertThrows(() => foo(undefined));
   %OptimizeFunctionOnNextCall(foo);
@@ -57,6 +62,7 @@
 (function() {
   function foo(o) { o.x = 1; }
 
+  %PrepareFunctionForOptimization(foo);
   assertThrows(() => foo(null));
   assertThrows(() => foo(null));
   %OptimizeFunctionOnNextCall(foo);
@@ -67,6 +73,7 @@
 (function() {
   function foo(o) { return o.x; }
 
+  %PrepareFunctionForOptimization(foo);
   assertThrows(() => foo(undefined));
   assertThrows(() => foo(undefined));
   %OptimizeFunctionOnNextCall(foo);
@@ -77,6 +84,7 @@
 (function() {
   function foo(o) { return o.x; }
 
+  %PrepareFunctionForOptimization(foo);
   assertThrows(() => foo(null));
   assertThrows(() => foo(null));
   %OptimizeFunctionOnNextCall(foo);

test/mjsunit/regress/regress-6991.js

@@ -6,6 +6,7 @@
 
 function foo(o) { return o.x; }
 
+%PrepareFunctionForOptimization(foo);
 assertEquals(undefined, foo({}));
 assertEquals(undefined, foo(1));
 assertEquals(undefined, foo({}));

test/mjsunit/regress/regress-7014-1.js

@@ -8,6 +8,7 @@ function foo(s) {
   return s[5];
 }
 
+%PrepareFunctionForOptimization(foo);
 assertEquals("f", foo("abcdef"));
 assertEquals(undefined, foo("a"));
 %OptimizeFunctionOnNextCall(foo);
@@ -19,6 +20,7 @@ assertOptimized(foo);
 String.prototype[5] = "5";
 
 assertEquals("f", foo("abcdef"));
+%PrepareFunctionForOptimization(foo);
 assertEquals("5", foo("a"));
 %OptimizeFunctionOnNextCall(foo);
 assertEquals("f", foo("abcdef"));

test/mjsunit/regress/regress-7014-2.js

@@ -8,6 +8,7 @@ function foo(s) {
   return s[5];
 }
 
+%PrepareFunctionForOptimization(foo);
 assertEquals("f", foo("abcdef"));
 assertEquals(undefined, foo("a"));
 %OptimizeFunctionOnNextCall(foo);
@@ -23,6 +24,7 @@ String.prototype.__proto__ = new Proxy(String.prototype.__proto__, {
 });
 
 assertEquals("f", foo("abcdef"));
+%PrepareFunctionForOptimization(foo);
 assertEquals("5", foo("a"));
 %OptimizeFunctionOnNextCall(foo);
 assertEquals("f", foo("abcdef"));