Mercurial > hg > CbC > CbC_gcc
diff gcc/config/powerpcspe/a2.md @ 111:04ced10e8804
gcc 7
author | kono |
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date | Fri, 27 Oct 2017 22:46:09 +0900 |
parents | |
children | 84e7813d76e9 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gcc/config/powerpcspe/a2.md Fri Oct 27 22:46:09 2017 +0900 @@ -0,0 +1,138 @@ +;; Scheduling description for PowerPC A2 processors. +;; Copyright (C) 2009-2017 Free Software Foundation, Inc. +;; Contributed by Ben Elliston (bje@au.ibm.com) + +;; This file is part of GCC. + +;; GCC 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 3, or (at your +;; option) any later version. + +;; GCC 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 GCC; see the file COPYING3. If not see +;; <http://www.gnu.org/licenses/>. + +(define_automaton "ppca2") + +;; CPU units + +;; The multiplier pipeline. +(define_cpu_unit "mult" "ppca2") + +;; The auxiliary processor unit (FP/vector unit). +(define_cpu_unit "axu" "ppca2") + +;; D.4.6 +;; Some peculiarities for certain SPRs + +(define_insn_reservation "ppca2-mfcr" 1 + (and (eq_attr "type" "mfcr") + (eq_attr "cpu" "ppca2")) + "nothing") + +(define_insn_reservation "ppca2-mfjmpr" 5 + (and (eq_attr "type" "mfjmpr") + (eq_attr "cpu" "ppca2")) + "nothing") + +(define_insn_reservation "ppca2-mtjmpr" 5 + (and (eq_attr "type" "mtjmpr") + (eq_attr "cpu" "ppca2")) + "nothing") + +;; D.4.8 +(define_insn_reservation "ppca2-imul" 1 + (and (eq_attr "type" "mul") + (eq_attr "size" "8,16,32") + (eq_attr "cpu" "ppca2")) + "nothing") + +;; FIXME: latency and multiplier reservation for 64-bit multiply? +(define_insn_reservation "ppca2-lmul" 6 + (and (eq_attr "type" "mul") + (eq_attr "size" "64") + (eq_attr "cpu" "ppca2")) + "mult*3") + +;; D.4.9 +(define_insn_reservation "ppca2-idiv" 32 + (and (eq_attr "type" "div") + (eq_attr "size" "32") + (eq_attr "cpu" "ppca2")) + "mult*32") + +(define_insn_reservation "ppca2-ldiv" 65 + (and (eq_attr "type" "div") + (eq_attr "size" "64") + (eq_attr "cpu" "ppca2")) + "mult*65") + +;; D.4.13 +(define_insn_reservation "ppca2-load" 5 + (and (eq_attr "type" "load") + (eq_attr "cpu" "ppca2")) + "nothing") + +;; D.8.1 +(define_insn_reservation "ppca2-fp" 6 + (and (eq_attr "type" "fp,fpsimple") + (eq_attr "cpu" "ppca2")) + "axu") + +;; D.8.4 +(define_insn_reservation "ppca2-fp-load" 6 + (and (eq_attr "type" "fpload") + (eq_attr "cpu" "ppca2")) + "axu") + +;; D.8.5 +(define_insn_reservation "ppca2-fp-store" 2 + (and (eq_attr "type" "fpstore") + (eq_attr "cpu" "ppca2")) + "axu") + +;; D.8.6 +(define_insn_reservation "ppca2-fpcompare" 5 + (and (eq_attr "type" "fpcompare") + (eq_attr "cpu" "ppca2")) + "axu") + +;; D.8.7 +;; +;; Instructions from the same thread succeeding the floating-point +;; divide cannot be executed until the floating-point divide has +;; completed. Since there is nothing else we can do, this thread will +;; just have to stall. + +(define_insn_reservation "ppca2-ddiv" 72 + (and (eq_attr "type" "ddiv") + (eq_attr "cpu" "ppca2")) + "axu") + +(define_insn_reservation "ppca2-sdiv" 59 + (and (eq_attr "type" "sdiv") + (eq_attr "cpu" "ppca2")) + "axu") + +;; D.8.8 +;; +;; Instructions from the same thread succeeding the floating-point +;; divide cannot be executed until the floating-point divide has +;; completed. Since there is nothing else we can do, this thread will +;; just have to stall. + +(define_insn_reservation "ppca2-dsqrt" 69 + (and (eq_attr "type" "dsqrt") + (eq_attr "cpu" "ppca2")) + "axu") + +(define_insn_reservation "ppca2-ssqrt" 65 + (and (eq_attr "type" "ssqrt") + (eq_attr "cpu" "ppca2")) + "axu")