Comments on: HYDROGEN: Code generation http://www.snell-pym.org.uk/archives/2009/07/14/hydrogen-code-generation/ Sarah and Alaric Snell-Pym living in interesting times Tue, 22 May 2012 23:39:26 +0000 http://wordpress.org/?v=2.7 hourly 1 By: alaric http://www.snell-pym.org.uk/archives/2009/07/14/hydrogen-code-generation/comment-page-1/#comment-99010 alaric Fri, 17 Jul 2009 14:07:46 +0000 http://www.snell-pym.org.uk/?p=1586#comment-99010 <p>This is also interesting reading:</p> <p>http://factor-language.blogspot.com/2009/07/improved-value-numbering-branch.html</p> This is also interesting reading:

http://factor-language.blogspot.com/2009/07/improved-value-numbering-branch.html

]]> By: alaric http://www.snell-pym.org.uk/archives/2009/07/14/hydrogen-code-generation/comment-page-1/#comment-98951 alaric Thu, 16 Jul 2009 12:35:08 +0000 http://www.snell-pym.org.uk/?p=1586#comment-98951 <p>The definition of a subroutine with <code>( ... )</code> compiles it there and then, in the implementations I have planned (except for the case of tethered systems, but you'll have to wait to hear about them). Either way, by the time you call a subroutine, it ought to be compiled.</p> <p>It's all up to the implementation, though - weird JIT stuff could be done. It's just that those implementations would suck for real time stuff, and should say so on the tin :-)</p> The definition of a subroutine with ( ... ) compiles it there and then, in the implementations I have planned (except for the case of tethered systems, but you'll have to wait to hear about them). Either way, by the time you call a subroutine, it ought to be compiled.

It's all up to the implementation, though - weird JIT stuff could be done. It's just that those implementations would suck for real time stuff, and should say so on the tin :-)

]]> By: Gavan http://www.snell-pym.org.uk/archives/2009/07/14/hydrogen-code-generation/comment-page-1/#comment-98950 Gavan Thu, 16 Jul 2009 11:53:32 +0000 http://www.snell-pym.org.uk/?p=1586#comment-98950 <p>Do you have any mechanism for assuring that a certain bit of code which will be used later must be compiled by a certain point in the code?</p> <p>I can think of several cases (mostly within device drivers) where the latency of certain routines is critically important, and having to wait (even the first time) for the parser to do its thing could lead to lots of unpleasantness.</p> Do you have any mechanism for assuring that a certain bit of code which will be used later must be compiled by a certain point in the code?

I can think of several cases (mostly within device drivers) where the latency of certain routines is critically important, and having to wait (even the first time) for the parser to do its thing could lead to lots of unpleasantness.

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