Re: Advice needed: programmatically generating primops?

Also search for "pasted" on http://www.delorie.com/gnu/docs/gcc/cpp_48.html Cheers, Gabor On 2/15/13, kudah wrote:

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with -traditional concatenation is not available.

#define RET(x) x #define CONCAT(x,y) RET(x)y

On Fri, 15 Feb 2013 11:17:20 +0000 Geoffrey Mainland wrote:

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That was what I wanted to do at first, but I don't think it's possible.

First of all, on Linux at least, we invoke the preprocessor with -traditional, so concatenation is not available. That could be changed.

Without -traditional, CPP doesn't like the # characters in the names of our primops. If you see how to get around that issue, please let me know :)

Geoff

On 02/15/2013 11:08 AM, Gábor Lehel wrote:

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Could it be done with CPP macros perhaps, instead of a separate code generator program? If the boilerplate is fairly regular and only requires placeholder-substitution, identifier concatenation and stringification, it could be an option. Just a thought.

On Fri, Feb 15, 2013 at 11:51 AM, Geoffrey Mainland wrote:

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Hi All,

There is a huge amount of boilerplate involved in adding a full complement of vector primops to GHC. I would like to reduce this boilerplate by programmatically generating the vector primops. My plan is to add utils/genvecprimops and #include its output into primops.txt.pp.

Does this sound reasonable? Any objections? While I'm at it, is there any related cleanup I could undertake?

Thanks, Geoff

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