--- /dev/null
+;; Pipeline description for Motorola PowerPC e300c3 core.
+;; Copyright (C) 2008 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")
+ (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")
1, /* prefetch streams /*/
};
+/* Instruction costs on E300C2 and E300C3 cores. */
+static const
+struct processor_costs ppce300c2c3_cost = {
+ COSTS_N_INSNS (4), /* mulsi */
+ COSTS_N_INSNS (4), /* mulsi_const */
+ COSTS_N_INSNS (4), /* mulsi_const9 */
+ COSTS_N_INSNS (4), /* muldi */
+ COSTS_N_INSNS (19), /* divsi */
+ COSTS_N_INSNS (19), /* divdi */
+ COSTS_N_INSNS (3), /* fp */
+ COSTS_N_INSNS (4), /* dmul */
+ COSTS_N_INSNS (18), /* sdiv */
+ COSTS_N_INSNS (33), /* ddiv */
+};
+
/* Instruction costs on POWER4 and POWER5 processors. */
static const
struct processor_costs power4_cost = {
{"8540", PROCESSOR_PPC8540, POWERPC_BASE_MASK | MASK_STRICT_ALIGN},
/* 8548 has a dummy entry for now. */
{"8548", PROCESSOR_PPC8540, POWERPC_BASE_MASK | MASK_STRICT_ALIGN},
+ {"e300c2", PROCESSOR_PPCE300C2, POWERPC_BASE_MASK | MASK_SOFT_FLOAT},
+ {"e300c3", PROCESSOR_PPCE300C3, POWERPC_BASE_MASK},
{"860", PROCESSOR_MPCCORE, POWERPC_BASE_MASK | MASK_SOFT_FLOAT},
{"970", PROCESSOR_POWER4,
POWERPC_7400_MASK | MASK_PPC_GPOPT | MASK_MFCRF | MASK_POWERPC64},
if (TARGET_E500)
rs6000_isel = 1;
+ if (rs6000_cpu == PROCESSOR_PPCE300C2 || rs6000_cpu == PROCESSOR_PPCE300C3)
+ {
+ if (TARGET_ALTIVEC)
+ error ("AltiVec not supported in this target");
+ if (TARGET_SPE)
+ error ("Spe not supported in this target");
+ }
+
/* If we are optimizing big endian systems for space, use the load/store
multiple and string instructions. */
if (BYTES_BIG_ENDIAN && optimize_size)
rs6000_cost = &ppc8540_cost;
break;
+ case PROCESSOR_PPCE300C2:
+ case PROCESSOR_PPCE300C3:
+ rs6000_cost = &ppce300c2c3_cost;
+ break;
+
case PROCESSOR_POWER4:
case PROCESSOR_POWER5:
rs6000_cost = &power4_cost;
case CPU_PPC7400:
case CPU_PPC8540:
case CPU_CELL:
+ case CPU_PPCE300C2:
+ case CPU_PPCE300C3:
return 2;
case CPU_RIOS2:
case CPU_PPC604:
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