RE: help on - how to specify architecture information to gcc

["Bingfeng Mei" <bmei at broadcom dot com>]

You should check how to construct DFA for your target architecture.
Look at "Specifying processor pipeline description" in GCC internal
manual and checked out how other architectures do it.


-Bingfeng 

> -----Original Message-----
> From: gcc-owner@gcc.gnu.org [mailto:gcc-owner@gcc.gnu.org] On 
> Behalf Of ddmetro
> Sent: 21 September 2009 12:52
> To: gcc@gcc.gnu.org
> Subject: help on - how to specify architecture information to gcc
> 
> 
> Hi All,
>          Our project is to optimize instruction scheduling in gcc. It
> requires us to specify architecture information
> (basically number of cycles per instruction, stall and branch delays)
> to gcc, to optimize structural hazard detection.
> 
> Problem: Is there any specific format in which we can specify this
> information to gcc? Is it possible to embed this additional
> architecture specific detail, in .md files?
> 
> Target language for which optimization is being done: C
> Target machine architecture: i686
> GCC version: 4.4.1
> 
>          If none of the above options work, we were planning to put
> the information manually in a file and make gcc read it each time it
> loads. Any suggestions/comments on this approach?
> 
>          Couldn't find a related thread. Hence a new one.
> 
> Thanking All,
> - Dhiraj.
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> formation-to-gcc-tp25530300p25530300.html
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>