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Diffstat (limited to 'gcc-4.2.1-5666.3/gcc/config/rs6000/7xx.md')
| -rw-r--r-- | gcc-4.2.1-5666.3/gcc/config/rs6000/7xx.md | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/gcc-4.2.1-5666.3/gcc/config/rs6000/7xx.md b/gcc-4.2.1-5666.3/gcc/config/rs6000/7xx.md new file mode 100644 index 000000000..77e58a3cb --- /dev/null +++ b/gcc-4.2.1-5666.3/gcc/config/rs6000/7xx.md @@ -0,0 +1,183 @@ +;; Scheduling description for Motorola PowerPC 750 and PowerPC 7400 processors. +;; Copyright (C) 2003, 2004 Free Software Foundation, Inc. +;; +;; 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 2, 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 COPYING. If not, write to the +;; Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston, +;; MA 02110-1301, USA. + +(define_automaton "ppc7xx,ppc7xxfp") +(define_cpu_unit "iu1_7xx,iu2_7xx" "ppc7xx") +(define_cpu_unit "fpu_7xx" "ppc7xxfp") +(define_cpu_unit "lsu_7xx,bpu_7xx,sru_7xx" "ppc7xx") +(define_cpu_unit "du1_7xx,du2_7xx" "ppc7xx") +(define_cpu_unit "veccmplx_7xx,vecperm_7xx,vdu_7xx" "ppc7xx") + +;; PPC740/PPC750/PPC7400 32-bit 2xIU, LSU, SRU, FPU, BPU +;; IU1 can perform all integer operations +;; IU2 can perform all integer operations except imul and idiv +;; LSU 2 stage pipelined +;; FPU 3 stage pipelined +;; Max issue 3 insns/clock cycle (includes 1 branch) +;; In-order execution + + +;; The PPC750 user's manual recommends that to reduce branch mispredictions, +;; the insn that sets CR bits should be separated from the branch insn +;; that evaluates them. There is no advantage have more than 10 cycles +;; of separation. +;; This could be artificially achieved by exaggerating the latency of +;; compare insns but at the expense of a poorer schedule. + +;; Branches go straight to the BPU. All other insns are handled +;; by a dispatch unit which can issue a max of 2 insns per cycle. +(define_reservation "ppc750_du" "du1_7xx|du2_7xx") +(define_reservation "ppc7400_vec_du" "vdu_7xx") + +(define_insn_reservation "ppc750-load" 2 + (and (eq_attr "type" "load,load_ext,load_ext_u,load_ext_ux,\ + load_ux,load_u,fpload,fpload_ux,fpload_u,\ + vecload,load_l") + (eq_attr "cpu" "ppc750,ppc7400")) + "ppc750_du,lsu_7xx") + +(define_insn_reservation "ppc750-store" 2 + (and (eq_attr "type" "store,store_ux,store_u,\ + fpstore,fpstore_ux,fpstore_u,vecstore") + (eq_attr "cpu" "ppc750,ppc7400")) + "ppc750_du,lsu_7xx") + +(define_insn_reservation "ppc750-storec" 8 + (and (eq_attr "type" "store_c") + (eq_attr "cpu" "ppc750,ppc7400")) + "ppc750_du,lsu_7xx") + +(define_insn_reservation "ppc750-integer" 1 + (and (eq_attr "type" "integer,insert_word") + (eq_attr "cpu" "ppc750,ppc7400")) + "ppc750_du,iu1_7xx|iu2_7xx") + +(define_insn_reservation "ppc750-two" 1 + (and (eq_attr "type" "two") + (eq_attr "cpu" "ppc750,ppc7400")) + "ppc750_du,iu1_7xx|iu2_7xx,iu1_7xx|iu2_7xx") + +(define_insn_reservation "ppc750-three" 1 + (and (eq_attr "type" "three") + (eq_attr "cpu" "ppc750,ppc7400")) + "ppc750_du,iu1_7xx|iu2_7xx,iu1_7xx|iu2_7xx,iu1_7xx|iu2_7xx") + +(define_insn_reservation "ppc750-imul" 4 + (and (eq_attr "type" "imul,imul_compare") + (eq_attr "cpu" "ppc750,ppc7400")) + "ppc750_du,iu1_7xx*4") + +(define_insn_reservation "ppc750-imul2" 3 + (and (eq_attr "type" "imul2") + (eq_attr "cpu" "ppc750,ppc7400")) + "ppc750_du,iu1_7xx*2") + +(define_insn_reservation "ppc750-imul3" 2 + (and (eq_attr "type" "imul3") + (eq_attr "cpu" "ppc750,ppc7400")) + "ppc750_du,iu1_7xx") + +(define_insn_reservation "ppc750-idiv" 19 + (and (eq_attr "type" "idiv") + (eq_attr "cpu" "ppc750,ppc7400")) + "ppc750_du,iu1_7xx*19") + +(define_insn_reservation "ppc750-compare" 2 + (and (eq_attr "type" "cmp,fast_compare,compare,delayed_compare") + (eq_attr "cpu" "ppc750,ppc7400")) + "ppc750_du,(iu1_7xx|iu2_7xx)") + +(define_insn_reservation "ppc750-fpcompare" 2 + (and (eq_attr "type" "fpcompare") + (eq_attr "cpu" "ppc750,ppc7400")) + "ppc750_du,fpu_7xx") + +(define_insn_reservation "ppc750-fp" 3 + (and (eq_attr "type" "fp") + (eq_attr "cpu" "ppc750,ppc7400")) + "ppc750_du,fpu_7xx") + +(define_insn_reservation "ppc750-dmul" 4 + (and (eq_attr "type" "dmul") + (eq_attr "cpu" "ppc750")) + "ppc750_du,fpu_7xx*2") + +(define_insn_reservation "ppc7400-dmul" 3 + (and (eq_attr "type" "dmul") + (eq_attr "cpu" "ppc7400")) + "ppc750_du,fpu_7xx") + +; Divides are not pipelined +(define_insn_reservation "ppc750-sdiv" 17 + (and (eq_attr "type" "sdiv") + (eq_attr "cpu" "ppc750,ppc7400")) + "ppc750_du,fpu_7xx*17") + +(define_insn_reservation "ppc750-ddiv" 31 + (and (eq_attr "type" "ddiv") + (eq_attr "cpu" "ppc750,ppc7400")) + "ppc750_du,fpu_7xx*31") + +(define_insn_reservation "ppc750-mfcr" 2 + (and (eq_attr "type" "mfcr,mtcr") + (eq_attr "cpu" "ppc750,ppc7400")) + "ppc750_du,iu1_7xx") + +(define_insn_reservation "ppc750-crlogical" 3 + (and (eq_attr "type" "cr_logical,delayed_cr") + (eq_attr "cpu" "ppc750,ppc7400")) + "nothing,sru_7xx*2") + +(define_insn_reservation "ppc750-mtjmpr" 2 + (and (eq_attr "type" "mtjmpr,isync,sync") + (eq_attr "cpu" "ppc750,ppc7400")) + "nothing,sru_7xx*2") + +(define_insn_reservation "ppc750-mfjmpr" 3 + (and (eq_attr "type" "mfjmpr") + (eq_attr "cpu" "ppc750,ppc7400")) + "nothing,sru_7xx*2") + +(define_insn_reservation "ppc750-jmpreg" 1 + (and (eq_attr "type" "jmpreg,branch,isync") + (eq_attr "cpu" "ppc750,ppc7400")) + "nothing,bpu_7xx") + +;; Altivec +(define_insn_reservation "ppc7400-vecsimple" 1 + (and (eq_attr "type" "vecsimple,veccmp") + (eq_attr "cpu" "ppc7400")) + "ppc750_du,ppc7400_vec_du,veccmplx_7xx") + +(define_insn_reservation "ppc7400-veccomplex" 4 + (and (eq_attr "type" "veccomplex") + (eq_attr "cpu" "ppc7400")) + "ppc750_du,ppc7400_vec_du,veccmplx_7xx") + +(define_insn_reservation "ppc7400-vecfloat" 4 + (and (eq_attr "type" "vecfloat") + (eq_attr "cpu" "ppc7400")) + "ppc750_du,ppc7400_vec_du,veccmplx_7xx") + +(define_insn_reservation "ppc7400-vecperm" 2 + (and (eq_attr "type" "vecperm") + (eq_attr "cpu" "ppc7400")) + "ppc750_du,ppc7400_vec_du,vecperm_7xx") + |