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Diffstat (limited to 'gcc-4.2.1/gcc/config/alpha/ev6.md')
| -rw-r--r-- | gcc-4.2.1/gcc/config/alpha/ev6.md | 178 |
1 files changed, 0 insertions, 178 deletions
diff --git a/gcc-4.2.1/gcc/config/alpha/ev6.md b/gcc-4.2.1/gcc/config/alpha/ev6.md deleted file mode 100644 index 2b04e5456..000000000 --- a/gcc-4.2.1/gcc/config/alpha/ev6.md +++ /dev/null @@ -1,178 +0,0 @@ -;; Scheduling description for Alpha EV6. -;; Copyright (C) 2002, 2004, 2005 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. - -; EV6 can issue 4 insns per clock. It's out-of-order, so this isn't -; expected to help over-much, but a precise description can be important -; for software pipelining. -; -; EV6 has two symmetric pairs ("clusters") of two asymmetric integer -; units ("upper" and "lower"), yielding pipe names U0, U1, L0, L1. -; -; ??? The clusters have independent register files that are re-synced -; every cycle. Thus there is one additional cycle of latency between -; insns issued on different clusters. Possibly model that by duplicating -; all EBOX insn_reservations that can issue to either cluster, increasing -; all latencies by one, and adding bypasses within the cluster. -; -; ??? In addition, instruction order affects cluster issue. - -(define_automaton "ev6_0,ev6_1") -(define_cpu_unit "ev6_u0,ev6_u1,ev6_l0,ev6_l1" "ev6_0") -(define_reservation "ev6_u" "ev6_u0|ev6_u1") -(define_reservation "ev6_l" "ev6_l0|ev6_l1") -(define_reservation "ev6_ebox" "ev6_u|ev6_l") - -(define_cpu_unit "ev6_fa" "ev6_1") -(define_cpu_unit "ev6_fm,ev6_fst0,ev6_fst1" "ev6_0") -(define_reservation "ev6_fst" "ev6_fst0|ev6_fst1") - -; Assume type "multi" single issues. -(define_insn_reservation "ev6_multi" 1 - (and (eq_attr "tune" "ev6") - (eq_attr "type" "multi")) - "ev6_u0+ev6_u1+ev6_l0+ev6_l1+ev6_fa+ev6_fm+ev6_fst0+ev6_fst1") - -; Integer loads take at least 3 clocks, and only issue to lower units. -; adjust_cost still factors in user-specified memory latency, so return 1 here. -(define_insn_reservation "ev6_ild" 1 - (and (eq_attr "tune" "ev6") - (eq_attr "type" "ild,ldsym,ld_l")) - "ev6_l") - -(define_insn_reservation "ev6_ist" 1 - (and (eq_attr "tune" "ev6") - (eq_attr "type" "ist,st_c")) - "ev6_l") - -(define_insn_reservation "ev6_mb" 1 - (and (eq_attr "tune" "ev6") - (eq_attr "type" "mb")) - "ev6_l1") - -; FP loads take at least 4 clocks. adjust_cost still factors -; in user-specified memory latency, so return 2 here. -(define_insn_reservation "ev6_fld" 2 - (and (eq_attr "tune" "ev6") - (eq_attr "type" "fld")) - "ev6_l") - -; The FPU communicates with memory and the integer register file -; via two fp store units. We need a slot in the fst immediately, and -; a slot in LOW after the operand data is ready. At which point the -; data may be moved either to the store queue or the integer register -; file and the insn retired. - -(define_insn_reservation "ev6_fst" 3 - (and (eq_attr "tune" "ev6") - (eq_attr "type" "fst")) - "ev6_fst,nothing,ev6_l") - -; Arithmetic goes anywhere. -(define_insn_reservation "ev6_arith" 1 - (and (eq_attr "tune" "ev6") - (eq_attr "type" "iadd,ilog,icmp")) - "ev6_ebox") - -; Motion video insns also issue only to U0, and take three ticks. -(define_insn_reservation "ev6_mvi" 3 - (and (eq_attr "tune" "ev6") - (eq_attr "type" "mvi")) - "ev6_u0") - -; Shifts issue to upper units. -(define_insn_reservation "ev6_shift" 1 - (and (eq_attr "tune" "ev6") - (eq_attr "type" "shift")) - "ev6_u") - -; Multiplies issue only to U1, and all take 7 ticks. -(define_insn_reservation "ev6_imul" 7 - (and (eq_attr "tune" "ev6") - (eq_attr "type" "imul")) - "ev6_u1") - -; Conditional moves decompose into two independent primitives, each taking -; one cycle. Since ev6 is out-of-order, we can't see anything but two cycles. -(define_insn_reservation "ev6_icmov" 2 - (and (eq_attr "tune" "ev6") - (eq_attr "type" "icmov")) - "ev6_ebox,ev6_ebox") - -; Integer branches issue to upper units -(define_insn_reservation "ev6_ibr" 1 - (and (eq_attr "tune" "ev6") - (eq_attr "type" "ibr,callpal")) - "ev6_u") - -; Calls only issue to L0. -(define_insn_reservation "ev6_jsr" 1 - (and (eq_attr "tune" "ev6") - (eq_attr "type" "jsr")) - "ev6_l0") - -; Ftoi/itof only issue to lower pipes. -(define_insn_reservation "ev6_itof" 3 - (and (eq_attr "tune" "ev6") - (eq_attr "type" "itof")) - "ev6_l") - -(define_insn_reservation "ev6_ftoi" 3 - (and (eq_attr "tune" "ev6") - (eq_attr "type" "ftoi")) - "ev6_fst,nothing,ev6_l") - -(define_insn_reservation "ev6_fmul" 4 - (and (eq_attr "tune" "ev6") - (eq_attr "type" "fmul")) - "ev6_fm") - -(define_insn_reservation "ev6_fadd" 4 - (and (eq_attr "tune" "ev6") - (eq_attr "type" "fadd,fcpys,fbr")) - "ev6_fa") - -(define_insn_reservation "ev6_fcmov" 8 - (and (eq_attr "tune" "ev6") - (eq_attr "type" "fcmov")) - "ev6_fa,nothing*3,ev6_fa") - -(define_insn_reservation "ev6_fdivsf" 12 - (and (eq_attr "tune" "ev6") - (and (eq_attr "type" "fdiv") - (eq_attr "opsize" "si"))) - "ev6_fa*9") - -(define_insn_reservation "ev6_fdivdf" 15 - (and (eq_attr "tune" "ev6") - (and (eq_attr "type" "fdiv") - (eq_attr "opsize" "di"))) - "ev6_fa*12") - -(define_insn_reservation "ev6_sqrtsf" 18 - (and (eq_attr "tune" "ev6") - (and (eq_attr "type" "fsqrt") - (eq_attr "opsize" "si"))) - "ev6_fa*15") - -(define_insn_reservation "ev6_sqrtdf" 33 - (and (eq_attr "tune" "ev6") - (and (eq_attr "type" "fsqrt") - (eq_attr "opsize" "di"))) - "ev6_fa*30") |