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-ow...@gcc.gnu.org [mailto:gcc-ow...@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. > -- > View this message in context: > http://www.nabble.com/help-on---how-to-specify-architecture-in > formation-to-gcc-tp25530300p25530300.html > Sent from the gcc - Dev mailing list archive at Nabble.com. > > >
