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Groups > comp.lang.javascript > #39966

Re: Loop optimisation.

From Thomas 'PointedEars' Lahn <PointedEars@web.de>
Newsgroups comp.lang.javascript
Subject Re: Loop optimisation.
Date 2021-04-17 21:45 +0200
Organization PointedEars Software (PES)
Message-ID <7236162.EvYhyI6sBW@PointedEars.de> (permalink)
References (2 earlier) <7904310.T7Z3S40VBb@PointedEars.de> <1110f942-cc14-45b2-966b-a4442461f170n@googlegroups.com> <9878253.nUPlyArG6x@PointedEars.de> <2144986.iZASKD2KPV@PointedEars.de> <8568ec13-3f65-4b1d-b9b3-decd9eacebe3n@googlegroups.com>

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Michael Haufe (TNO) wrote:

> On Wednesday, April 14, 2021 at 11:00:26 AM UTC-5, Thomas 'PointedEars'
> Lahn wrote:
>> This should clarify your misconception:
>> 
>> <https://developer.mozilla.org/en-US/docs/Mozilla/Projects/SpiderMonkey/Internals/Bytecodes>
> 
> Yes, I'm aware as mentioned in my last response. I don't think we
> disagree.

I think we do.  You still appear to think that “JIT” is something new.
It isn’t:

> What the modern "JIT"s do is different than what the original
> interpreters were accomplishing. As mentioned in Brendan's original post
> on TraceMonkey they enabled the ability to dynamically go from the
> interpreted byte code to more low-level forms including machine code with
> direct register access.

As I already said, this has happened *from the beginning*, since the very 
first version of SpiderMonkey in Netscape Navigator.  TraceMonkey only 
*improves* that.

>> Since this is actually *compilation* (conversion of human-readable source
>> code to machine-readable code), that part of the “interpreter” is
>> actually technically a _compiler_.
> 
> A "compiler" does not execute code, its role is to perform translation.

You don’t say.  Will you *please* learn to read more carefully? :-(

-- 
PointedEars
FAQ: <http://PointedEars.de/faq> | <http://PointedEars.de/es-matrix>
<https://github.com/PointedEars> | <http://PointedEars.de/wsvn/>
Twitter: @PointedEars2 | Please do not cc me./Bitte keine Kopien per E-Mail.

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Thread

Loop optimisation. The Natural Philosopher <tnp@invalid.invalid> - 2021-04-10 18:41 +0100
  Re: Loop optimisation. John G Harris <niam@jghnorth.org.uk.invalid> - 2021-04-10 19:14 +0100
    Re: Loop optimisation. The Natural Philosopher <tnp@invalid.invalid> - 2021-04-11 11:33 +0100
      Re: Loop optimisation. John G Harris <niam@jghnorth.org.uk.invalid> - 2021-04-11 15:03 +0100
        Re: Loop optimisation. "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2021-04-11 07:38 -0700
          Re: Loop optimisation. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-11 13:36 -0700
          Re: Loop optimisation. John G Harris <niam@jghnorth.org.uk.invalid> - 2021-04-12 18:05 +0100
            Re: Loop optimisation. The Natural Philosopher <tnp@invalid.invalid> - 2021-04-12 23:16 +0100
              Re: Loop optimisation. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-13 05:19 -0700
                Re: Loop optimisation. "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2021-04-13 06:21 -0700
        Re: Loop optimisation. The Natural Philosopher <tnp@invalid.invalid> - 2021-04-12 01:36 +0100
          Re: Loop optimisation. John G Harris <niam@jghnorth.org.uk.invalid> - 2021-04-12 18:04 +0100
            Re: Loop optimisation. The Natural Philosopher <tnp@invalid.invalid> - 2021-04-12 23:09 +0100
              Re: Loop optimisation. John G Harris <niam@jghnorth.org.uk.invalid> - 2021-04-13 20:08 +0100
                Re: Loop optimisation. The Natural Philosopher <tnp@invalid.invalid> - 2021-04-13 21:41 +0100
                Re: Loop optimisation. John G Harris <niam@jghnorth.org.uk.invalid> - 2021-04-14 18:24 +0100
  Re: Loop optimisation. Kristjan Robam <he12457@hotmail.com> - 2021-04-10 13:36 -0700
    Re: Loop optimisation. The Natural Philosopher <tnp@invalid.invalid> - 2021-04-11 11:34 +0100
  Re: Loop optimisation. "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2021-04-10 22:22 -0700
    Re: Loop optimisation. The Natural Philosopher <tnp@invalid.invalid> - 2021-04-11 11:36 +0100
    Re: Loop optimisation. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2021-04-14 02:20 +0200
      Re: Loop optimisation. "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2021-04-14 06:48 -0700
        Re: Loop optimisation. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2021-04-14 17:31 +0200
          Re: Loop optimisation. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2021-04-14 18:00 +0200
            Re: Loop optimisation. The Natural Philosopher <tnp@invalid.invalid> - 2021-04-14 19:25 +0100
            Re: Loop optimisation. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2021-04-14 23:10 +0200
              Re: Loop optimisation. "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2021-04-17 09:45 -0700
            Re: Loop optimisation. "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2021-04-17 09:43 -0700
              Re: Loop optimisation. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2021-04-17 21:45 +0200
                Re: Loop optimisation. Scott Sauyet <scott.sauyet@gmail.com> - 2021-04-18 19:06 -0700
          Re: Loop optimisation. "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2021-04-17 08:50 -0700

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