1 ;; Scheduling description for PowerPC A2 processors.
2 ;; Copyright (C) 2009 Free Software Foundation, Inc.
3 ;; Contributed by Ben Elliston (bje@au.ibm.com)
5 ;; This file is part of GCC.
7 ;; GCC is free software; you can redistribute it and/or modify it
8 ;; under the terms of the GNU General Public License as published
9 ;; by the Free Software Foundation; either version 3, or (at your
10 ;; option) any later version.
12 ;; GCC is distributed in the hope that it will be useful, but WITHOUT
13 ;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14 ;; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
15 ;; License for more details.
17 ;; You should have received a copy of the GNU General Public License
18 ;; along with GCC; see the file COPYING3. If not see
19 ;; <http://www.gnu.org/licenses/>.
21 (define_automaton "ppca2")
25 ;; The multiplier pipeline.
26 (define_cpu_unit "mult" "ppca2")
28 ;; The auxiliary processor unit (FP/vector unit).
29 (define_cpu_unit "axu" "ppca2")
32 ;; Some peculiarities for certain SPRs
34 (define_insn_reservation "ppca2-mfcr" 1
35 (and (eq_attr "type" "mfcr")
36 (eq_attr "cpu" "ppca2"))
39 (define_insn_reservation "ppca2-mfjmpr" 5
40 (and (eq_attr "type" "mfjmpr")
41 (eq_attr "cpu" "ppca2"))
44 (define_insn_reservation "ppca2-mtjmpr" 5
45 (and (eq_attr "type" "mtjmpr")
46 (eq_attr "cpu" "ppca2"))
50 (define_insn_reservation "ppca2-imul" 1
51 (and (eq_attr "type" "imul,imul2,imul3,imul_compare")
52 (eq_attr "cpu" "ppca2"))
55 ;; FIXME: latency and multiplier reservation for 64-bit multiply?
56 (define_insn_reservation "ppca2-lmul" 6
57 (and (eq_attr "type" "lmul,lmul_compare")
58 (eq_attr "cpu" "ppca2"))
62 (define_insn_reservation "ppca2-idiv" 32
63 (and (eq_attr "type" "idiv")
64 (eq_attr "cpu" "ppca2"))
67 (define_insn_reservation "ppca2-ldiv" 65
68 (and (eq_attr "type" "ldiv")
69 (eq_attr "cpu" "ppca2"))
73 (define_insn_reservation "ppca2-load" 5
74 (and (eq_attr "type" "load,load_ext,load_ext_u,load_ext_ux,load_ux,load_u")
75 (eq_attr "cpu" "ppca2"))
79 (define_insn_reservation "ppca2-fp" 6
80 (and (eq_attr "type" "fp") ;; Ignore fpsimple insn types (SPE only).
81 (eq_attr "cpu" "ppca2"))
85 (define_insn_reservation "ppca2-fp-load" 6
86 (and (eq_attr "type" "fpload,fpload_u,fpload_ux")
87 (eq_attr "cpu" "ppca2"))
91 (define_insn_reservation "ppca2-fp-store" 2
92 (and (eq_attr "type" "fpstore,fpstore_u,fpstore_ux")
93 (eq_attr "cpu" "ppca2"))
97 (define_insn_reservation "ppca2-fpcompare" 5
98 (and (eq_attr "type" "fpcompare")
99 (eq_attr "cpu" "ppca2"))
104 ;; Instructions from the same thread succeeding the floating-point
105 ;; divide cannot be executed until the floating-point divide has
106 ;; completed. Since there is nothing else we can do, this thread will
107 ;; just have to stall.
109 (define_insn_reservation "ppca2-ddiv" 72
110 (and (eq_attr "type" "ddiv")
111 (eq_attr "cpu" "ppca2"))
114 (define_insn_reservation "ppca2-sdiv" 59
115 (and (eq_attr "type" "sdiv")
116 (eq_attr "cpu" "ppca2"))
121 ;; Instructions from the same thread succeeding the floating-point
122 ;; divide cannot be executed until the floating-point divide has
123 ;; completed. Since there is nothing else we can do, this thread will
124 ;; just have to stall.
126 (define_insn_reservation "ppca2-dsqrt" 69
127 (and (eq_attr "type" "dsqrt")
128 (eq_attr "cpu" "ppca2"))
131 (define_insn_reservation "ppca2-ssqrt" 65
132 (and (eq_attr "type" "ssqrt")
133 (eq_attr "cpu" "ppca2"))