navoceano%oacis.decnet@NORDA.ARPA ("OACIS::NAVOCEANO") (11/22/88)
This is a cross-over from comp.sys.sun (sun-spots). I recently posted a query that asked if any sun-spots readers had experience with C compilers that did a better job of optimization than Sun's compiler. Several responded that GNU C did a good job in this department and the price is right. I also asked about optimization of concurrency and alignment for the 68020. This drew enough puzzled responses that I suspect that I was asking the wrong question. I am trying to find out if instruction scheduling is a valid or useful form of optimization for the 68020. If so, is this planned for gcc? Please c.c. to my address as I am not yet set up to receive the newsgroup. Thanks, Don Newcomb Naval Oceanographic Office Stennis Space Center, MS (601) 688-5998 navoceano%oacis.decnet@norda.arpa ------
rms@WHEATIES.AI.MIT.EDU (Richard Stallman) (11/23/88)
I have heard rumors that insn scheduling is useful for 68881 insns with the 68020, but GCC does not try to do this. Someone is working on a portable scheduling pass; when it is done, perhaps it will be reasonable to try this.