pwqeth04y.js

'use strict';

function foo(a, b, c) {
    return 0;
}

function Obj() {};

Obj.prototype.wrap = function(a, b, c) {
    return foo.call(this, a, b, c);
}

var RUNS = 1e6;
var o = new Obj();

(function a0() {
  var start = Date.now();
  for (var i = 0; i < RUNS; i++) o.wrap();
  print((Date.now() - start) / 1000, 's');
})();

(function a1() {
  var start = Date.now();
  for (var i = 0; i < RUNS; i++) o.wrap(1);
  print((Date.now() - start) / 1000, 's');
})();

(function a3() {
  var start = Date.now();
  for (var i = 0; i < RUNS; i++) o.wrap(1, 2);
  print((Date.now() - start) / 1000, 's');
})();

(function a4() {
  var start = Date.now();
  for (var i = 0; i < RUNS; i++) o.wrap(1, 2, 3);
  print((Date.now() - start) / 1000, 's');
})();

$ ../vendor/v8/out/native/d8 --trace_hydrogen --trace_phase=Z --trace_deopt --code_comments --hydrogen_track_positions --print_opt_code pwqeth04y.js 
Concurrent recompilation has been disabled for tracing.
[removing optimized code for: a0]
0.006 s
[removing optimized code for: a1]
0.004 s
[removing optimized code for: a3]
0.003 s
[removing optimized code for: a4]
0.003 s

$ ../vendor/v8/out/native/d8 --turbo --trace_turbo --trace_phase=Z --trace_deopt --code_comments --turbo_source_positions --print_opt_code pwqeth04y.js 
---------------------------------------------------
Begin compiling method Obj.wrap using Turbofan
---------------------------------------------------
Finished compiling method Obj.wrap using Turbofan
---------------------------------------------------
Begin compiling method foo using Turbofan
---------------------------------------------------
Finished compiling method foo using Turbofan
---------------------------------------------------
Begin compiling method a0 using Turbofan
---------------------------------------------------
Finished compiling method a0 using Turbofan
0.072 s
---------------------------------------------------
Begin compiling method a1 using Turbofan
---------------------------------------------------
Finished compiling method a1 using Turbofan
0.065 s
---------------------------------------------------
Begin compiling method a3 using Turbofan
---------------------------------------------------
Finished compiling method a3 using Turbofan
0.062 s
---------------------------------------------------
Begin compiling method a4 using Turbofan
---------------------------------------------------
Finished compiling method a4 using Turbofan
0.057 s