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Diffstat (limited to 'gcc-4.9/gcc/config/rs6000/e300c2c3.md')
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1 files changed, 189 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/config/rs6000/e300c2c3.md b/gcc-4.9/gcc/config/rs6000/e300c2c3.md new file mode 100644 index 000000000..80b84f5f2 --- /dev/null +++ b/gcc-4.9/gcc/config/rs6000/e300c2c3.md @@ -0,0 +1,189 @@ +;; Pipeline description for Motorola PowerPC e300c3 core. +;; Copyright (C) 2008-2014 Free Software Foundation, Inc. +;; Contributed by Edmar Wienskoski (edmar@freescale.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 "ppce300c3_most,ppce300c3_long,ppce300c3_retire") +(define_cpu_unit "ppce300c3_decode_0,ppce300c3_decode_1" "ppce300c3_most") + +;; We don't simulate general issue queue (GIC). If we have SU insn +;; and then SU1 insn, they can not be issued on the same cycle +;; (although SU1 insn and then SU insn can be issued) because the SU +;; insn will go to SU1 from GIC0 entry. Fortunately, the first cycle +;; multipass insn scheduling will find the situation and issue the SU1 +;; insn and then the SU insn. +(define_cpu_unit "ppce300c3_issue_0,ppce300c3_issue_1" "ppce300c3_most") + +;; We could describe completion buffers slots in combination with the +;; retirement units and the order of completion but the result +;; automaton would behave in the same way because we can not describe +;; real latency time with taking in order completion into account. +;; Actually we could define the real latency time by querying reserved +;; automaton units but the current scheduler uses latency time before +;; issuing insns and making any reservations. +;; +;; So our description is aimed to achieve a insn schedule in which the +;; insns would not wait in the completion buffer. +(define_cpu_unit "ppce300c3_retire_0,ppce300c3_retire_1" "ppce300c3_retire") + +;; Branch unit: +(define_cpu_unit "ppce300c3_bu" "ppce300c3_most") + +;; IU: +(define_cpu_unit "ppce300c3_iu0_stage0,ppce300c3_iu1_stage0" "ppce300c3_most") + +;; IU: This used to describe non-pipelined division. +(define_cpu_unit "ppce300c3_mu_div" "ppce300c3_long") + +;; SRU: +(define_cpu_unit "ppce300c3_sru_stage0" "ppce300c3_most") + +;; Here we simplified LSU unit description not describing the stages. +(define_cpu_unit "ppce300c3_lsu" "ppce300c3_most") + +;; FPU: +(define_cpu_unit "ppce300c3_fpu" "ppce300c3_most") + +;; The following units are used to make automata deterministic +(define_cpu_unit "present_ppce300c3_decode_0" "ppce300c3_most") +(define_cpu_unit "present_ppce300c3_issue_0" "ppce300c3_most") +(define_cpu_unit "present_ppce300c3_retire_0" "ppce300c3_retire") +(define_cpu_unit "present_ppce300c3_iu0_stage0" "ppce300c3_most") + +;; The following sets to make automata deterministic when option ndfa is used. +(presence_set "present_ppce300c3_decode_0" "ppce300c3_decode_0") +(presence_set "present_ppce300c3_issue_0" "ppce300c3_issue_0") +(presence_set "present_ppce300c3_retire_0" "ppce300c3_retire_0") +(presence_set "present_ppce300c3_iu0_stage0" "ppce300c3_iu0_stage0") + +;; Some useful abbreviations. +(define_reservation "ppce300c3_decode" + "ppce300c3_decode_0|ppce300c3_decode_1+present_ppce300c3_decode_0") +(define_reservation "ppce300c3_issue" + "ppce300c3_issue_0|ppce300c3_issue_1+present_ppce300c3_issue_0") +(define_reservation "ppce300c3_retire" + "ppce300c3_retire_0|ppce300c3_retire_1+present_ppce300c3_retire_0") +(define_reservation "ppce300c3_iu_stage0" + "ppce300c3_iu0_stage0|ppce300c3_iu1_stage0+present_ppce300c3_iu0_stage0") + +;; Compares can be executed either one of the IU or SRU +(define_insn_reservation "ppce300c3_cmp" 1 + (and (eq_attr "type" "cmp,compare,delayed_compare,fast_compare") + (ior (eq_attr "cpu" "ppce300c2") (eq_attr "cpu" "ppce300c3"))) + "ppce300c3_decode,ppce300c3_issue+(ppce300c3_iu_stage0|ppce300c3_sru_stage0) \ + +ppce300c3_retire") + +;; Other one cycle IU insns +(define_insn_reservation "ppce300c3_iu" 1 + (and (eq_attr "type" "integer,insert_word,isel") + (ior (eq_attr "cpu" "ppce300c2") (eq_attr "cpu" "ppce300c3"))) + "ppce300c3_decode,ppce300c3_issue+ppce300c3_iu_stage0+ppce300c3_retire") + +;; Branch. Actually this latency time is not used by the scheduler. +(define_insn_reservation "ppce300c3_branch" 1 + (and (eq_attr "type" "jmpreg,branch") + (ior (eq_attr "cpu" "ppce300c2") (eq_attr "cpu" "ppce300c3"))) + "ppce300c3_decode,ppce300c3_bu,ppce300c3_retire") + +;; Multiply is non-pipelined but can be executed in any IU +(define_insn_reservation "ppce300c3_multiply" 2 + (and (eq_attr "type" "imul,imul2,imul3,imul_compare") + (ior (eq_attr "cpu" "ppce300c2") (eq_attr "cpu" "ppce300c3"))) + "ppce300c3_decode,ppce300c3_issue+ppce300c3_iu_stage0, \ + ppce300c3_iu_stage0+ppce300c3_retire") + +;; Divide. We use the average latency time here. We omit reserving a +;; retire unit because of the result automata will be huge. +(define_insn_reservation "ppce300c3_divide" 20 + (and (eq_attr "type" "idiv") + (ior (eq_attr "cpu" "ppce300c2") (eq_attr "cpu" "ppce300c3"))) + "ppce300c3_decode,ppce300c3_issue+ppce300c3_iu_stage0+ppce300c3_mu_div,\ + ppce300c3_mu_div*19") + +;; CR logical +(define_insn_reservation "ppce300c3_cr_logical" 1 + (and (eq_attr "type" "cr_logical,delayed_cr") + (ior (eq_attr "cpu" "ppce300c2") (eq_attr "cpu" "ppce300c3"))) + "ppce300c3_decode,ppce300c3_issue+ppce300c3_sru_stage0+ppce300c3_retire") + +;; Mfcr +(define_insn_reservation "ppce300c3_mfcr" 1 + (and (eq_attr "type" "mfcr") + (ior (eq_attr "cpu" "ppce300c2") (eq_attr "cpu" "ppce300c3"))) + "ppce300c3_decode,ppce300c3_issue+ppce300c3_sru_stage0+ppce300c3_retire") + +;; Mtcrf +(define_insn_reservation "ppce300c3_mtcrf" 1 + (and (eq_attr "type" "mtcr") + (ior (eq_attr "cpu" "ppce300c2") (eq_attr "cpu" "ppce300c3"))) + "ppce300c3_decode,ppce300c3_issue+ppce300c3_sru_stage0+ppce300c3_retire") + +;; Mtjmpr +(define_insn_reservation "ppce300c3_mtjmpr" 1 + (and (eq_attr "type" "mtjmpr,mfjmpr") + (ior (eq_attr "cpu" "ppce300c2") (eq_attr "cpu" "ppce300c3"))) + "ppce300c3_decode,ppce300c3_issue+ppce300c3_sru_stage0+ppce300c3_retire") + +;; Float point instructions +(define_insn_reservation "ppce300c3_fpcompare" 3 + (and (eq_attr "type" "fpcompare") + (eq_attr "cpu" "ppce300c3")) + "ppce300c3_decode,ppce300c3_issue+ppce300c3_fpu,nothing,ppce300c3_retire") + +(define_insn_reservation "ppce300c3_fp" 3 + (and (eq_attr "type" "fp") + (eq_attr "cpu" "ppce300c3")) + "ppce300c3_decode,ppce300c3_issue+ppce300c3_fpu,nothing,ppce300c3_retire") + +(define_insn_reservation "ppce300c3_dmul" 4 + (and (eq_attr "type" "dmul") + (eq_attr "cpu" "ppce300c3")) + "ppce300c3_decode,ppce300c3_issue+ppce300c3_fpu,ppce300c3_fpu,nothing,ppce300c3_retire") + +; Divides are not pipelined +(define_insn_reservation "ppce300c3_sdiv" 18 + (and (eq_attr "type" "sdiv") + (eq_attr "cpu" "ppce300c3")) + "ppce300c3_decode,ppce300c3_issue+ppce300c3_fpu,ppce300c3_fpu*17") + +(define_insn_reservation "ppce300c3_ddiv" 33 + (and (eq_attr "type" "ddiv") + (eq_attr "cpu" "ppce300c3")) + "ppce300c3_decode,ppce300c3_issue+ppce300c3_fpu,ppce300c3_fpu*32") + +;; Loads +(define_insn_reservation "ppce300c3_load" 2 + (and (eq_attr "type" "load,load_ext,load_ext_u,load_ext_ux,load_ux,load_u") + (ior (eq_attr "cpu" "ppce300c2") (eq_attr "cpu" "ppce300c3"))) + "ppce300c3_decode,ppce300c3_issue+ppce300c3_lsu,ppce300c3_retire") + +(define_insn_reservation "ppce300c3_fpload" 2 + (and (eq_attr "type" "fpload,fpload_ux,fpload_u") + (eq_attr "cpu" "ppce300c3")) + "ppce300c3_decode,ppce300c3_issue+ppce300c3_lsu,ppce300c3_retire") + +;; Stores. +(define_insn_reservation "ppce300c3_store" 2 + (and (eq_attr "type" "store,store_ux,store_u") + (ior (eq_attr "cpu" "ppce300c2") (eq_attr "cpu" "ppce300c3"))) + "ppce300c3_decode,ppce300c3_issue+ppce300c3_lsu,ppce300c3_retire") + +(define_insn_reservation "ppce300c3_fpstore" 2 + (and (eq_attr "type" "fpstore,fpstore_ux,fpstore_u") + (eq_attr "cpu" "ppce300c3")) + "ppce300c3_decode,ppce300c3_issue+ppce300c3_lsu,ppce300c3_retire") |