[LLVMdev] bitcode to make math expression parse faster

[James Molloy]

Hi Christian,

 

> I develop for iphone!

 

As such you are limited to what the iOS SDK provides, which as far as I know
is Objective-C, with a dedicated compiler. You cannot, as far as I am aware,
use LLVM yourself on that platform.

 

> Do you know how i can compile in time, so an expression is evaluated
faster ?

 

Unfortunately (again, as far as I know not being an iPhone developer)
just-in-time compilation is banned by the terms of service.

 

> I want to compile a mathematical expression ... with the parser I use it
is too slow.

 

So Objective-C does compile integer and floating point arithmetic down to
pure machine code and performs standard optimisations on it. If you're using
Objective-C it should already be compiled. If you're not, then Objective-C
is probably your best choice given your platform.

 

Cheers,

 

James

 

From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu] On
Behalf Of Christian
Sent: 09 June 2011 11:58
To: llvmdev at cs.uiuc.edu
Subject: [LLVMdev] bitcode to make math expression parse faster

 

Hi,

 

I want to compile a mathematical expression.

So shall be faster.

It should be as fast as it would be hard coded.

With the parser i use it is too slow.

 

Do you know how i can compile in time, so an expression is evaluated

faster ?

 

I develop for iphone!

 

 

Thanks a lot !

 

Chris
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