diff options
Diffstat (limited to 'contrib/gcc/config/sparc/supersparc.md')
-rw-r--r-- | contrib/gcc/config/sparc/supersparc.md | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/contrib/gcc/config/sparc/supersparc.md b/contrib/gcc/config/sparc/supersparc.md new file mode 100644 index 0000000..ea32886 --- /dev/null +++ b/contrib/gcc/config/sparc/supersparc.md @@ -0,0 +1,93 @@ +;; Scheduling description for SuperSPARC. +;; Copyright (C) 2002 Free Software Foundation, Inc. +;; +;; This file is part of GNU CC. +;; +;; GNU CC is free software; you can redistribute it and/or modify +;; it under the terms of the GNU General Public License as published by +;; the Free Software Foundation; either version 2, or (at your option) +;; any later version. +;; +;; GNU CC is distributed in the hope that it will be useful, +;; but WITHOUT ANY WARRANTY; without even the implied warranty of +;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +;; GNU General Public License for more details. +;; +;; You should have received a copy of the GNU General Public License +;; along with GNU CC; see the file COPYING. If not, write to +;; the Free Software Foundation, 59 Temple Place - Suite 330, +;; Boston, MA 02111-1307, USA. + +;; The SuperSPARC is a tri-issue, which was considered quite parallel +;; at the time it was released. Much like UltraSPARC-I and UltraSPARC-II +;; there are two integer units but only one of them may take shifts. +;; +;; ??? If SuperSPARC has the same slotting rules as ultrasparc for these +;; ??? shifts, we should model that. + +(define_automaton "supersparc_0,supersparc_1") + +(define_cpu_unit "ss_memory, ss_shift, ss_iwport0, ss_iwport1" "supersparc_0") +(define_cpu_unit "ss_fpalu" "supersparc_0") +(define_cpu_unit "ss_fpmds" "supersparc_1") + +(define_reservation "ss_iwport" "(ss_iwport0 | ss_iwport1)") + +(define_insn_reservation "ss_iuload" 1 + (and (eq_attr "cpu" "supersparc") + (eq_attr "type" "load,sload")) + "ss_memory") + +;; Ok, fpu loads deliver the result in zero cycles. But we +;; have to show the ss_memory reservation somehow, thus... +(define_insn_reservation "ss_fpload" 0 + (and (eq_attr "cpu" "supersparc") + (eq_attr "type" "fpload")) + "ss_memory") + +(define_bypass 0 "ss_fpload" "ss_fp_alu,ss_fp_mult,ss_fp_divs,ss_fp_divd,ss_fp_sqrt") + +(define_insn_reservation "ss_store" 1 + (and (eq_attr "cpu" "supersparc") + (eq_attr "type" "store,fpstore")) + "ss_memory") + +(define_insn_reservation "ss_ialu_shift" 1 + (and (eq_attr "cpu" "supersparc") + (eq_attr "type" "shift")) + "ss_shift + ss_iwport") + +(define_insn_reservation "ss_ialu_any" 1 + (and (eq_attr "cpu" "supersparc") + (eq_attr "type" "load,sload,store,shift,ialu")) + "ss_iwport") + +(define_insn_reservation "ss_fp_alu" 3 + (and (eq_attr "cpu" "supersparc") + (eq_attr "type" "fp,fpmove,fpcmp")) + "ss_fpalu, nothing*2") + +(define_insn_reservation "ss_fp_mult" 3 + (and (eq_attr "cpu" "supersparc") + (eq_attr "type" "fpmul")) + "ss_fpmds, nothing*2") + +(define_insn_reservation "ss_fp_divs" 6 + (and (eq_attr "cpu" "supersparc") + (eq_attr "type" "fpdivs")) + "ss_fpmds*4, nothing*2") + +(define_insn_reservation "ss_fp_divd" 9 + (and (eq_attr "cpu" "supersparc") + (eq_attr "type" "fpdivd")) + "ss_fpmds*7, nothing*2") + +(define_insn_reservation "ss_fp_sqrt" 12 + (and (eq_attr "cpu" "supersparc") + (eq_attr "type" "fpsqrts,fpsqrtd")) + "ss_fpmds*10, nothing*2") + +(define_insn_reservation "ss_imul" 4 + (and (eq_attr "cpu" "supersparc") + (eq_attr "type" "imul")) + "ss_fpmds*4") |