From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Edelsohn To: Andreas Conz Cc: gcc@gcc.gnu.org Subject: Re: Perhaps useful information about optimisation Date: Thu, 30 Sep 1999 18:02:00 -0000 Message-ID: <9909082059.AA43094@marc.watson.ibm.com> References: <37CFB002.548521A2@neuro.informatik.uni-kassel.de> X-SW-Source: 1999-09n/msg00307.html Message-ID: <19990930180200.gvdOK6M1PDikUoikIzLNjH_m5qG-lB__KG8Kbv-hvJo@z> >>>>> Andreas Conz writes: Andreas> I found a webpage about optimisation in the compilerbackend of the IBM Andreas> AS/400 perhaps the description is useful for the development of GCC. Andreas> http://www.as400.ibm.com/beyondtech/translator.htm The IBM Haifa Instruction Scheduler contributed to GCC was written by the author cited in the Instruction scheduling section of that webpage. I believe that there is work to implement Software Pipelining in GCC utilizing additional flow graph analysis added to the compiler since IBM nominated its version of that optimization. David