gcc/config/rs6000/crypto.md

   1 ;; Cryptographic instructions added in ISA 2.07
   2 ;; Copyright (C) 2012-2019 Free Software Foundation, Inc.
   3 ;; Contributed by Michael Meissner (meissner@linux.vnet.ibm.com)
   4
   5 ;; This file is part of GCC.
   6
   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.
  11
  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.
  16
  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/>.
  20
  21 ;; NOTE: Although this file contains all the instructions from
  22 ;; section 5.11 of ISA 2.07, only those in sections 5.11.1 and
  23 ;; 5.11.2 are in Category:Vector.Crypto.  Those are the only
  24 ;; ones controlled by -m[no-]crypto.
  25
  26 ;; FIXME: The builtin names for the instructions in this file
  27 ;; are likely to be deprecated in favor of other names to be
  28 ;; agreed upon with the XL compilers and LLVM.
  29
  30 (define_c_enum "unspec"
  31   [UNSPEC_VCIPHER
  32    UNSPEC_VNCIPHER
  33    UNSPEC_VCIPHERLAST
  34    UNSPEC_VNCIPHERLAST
  35    UNSPEC_VSBOX
  36    UNSPEC_VSHASIGMA
  37    UNSPEC_VPERMXOR
  38    UNSPEC_VPMSUM])
  39
  40 ;; Iterator for VPMSUM/VPERMXOR
  41 (define_mode_iterator CR_mode [V16QI V8HI V4SI V2DI])
  42
  43 (define_mode_attr CR_char [(V16QI "b")
  44                            (V8HI  "h")
  45                            (V4SI  "w")
  46                            (V2DI  "d")])
  47
  48 ;; Iterator for VSHASIGMAD/VSHASIGMAW
  49 (define_mode_iterator CR_hash [V4SI V2DI])
  50
  51 ;; Iterator for the other crypto functions
  52 (define_int_iterator CR_code   [UNSPEC_VCIPHER
  53                                 UNSPEC_VNCIPHER
  54                                 UNSPEC_VCIPHERLAST
  55                                 UNSPEC_VNCIPHERLAST])
  56
  57 (define_int_attr CR_insn [(UNSPEC_VCIPHER      "vcipher")
  58                           (UNSPEC_VNCIPHER     "vncipher")
  59                           (UNSPEC_VCIPHERLAST  "vcipherlast")
  60                           (UNSPEC_VNCIPHERLAST "vncipherlast")])
  61
  62 ;; 2 operand crypto instructions
  63 (define_insn "crypto_<CR_insn>"
  64   [(set (match_operand:V2DI 0 "register_operand" "=v")
  65         (unspec:V2DI [(match_operand:V2DI 1 "register_operand" "v")
  66                       (match_operand:V2DI 2 "register_operand" "v")]
  67                      CR_code))]
  68   "TARGET_CRYPTO"
  69   "<CR_insn> %0,%1,%2"
  70   [(set_attr "type" "crypto")])
  71
  72 (define_insn "crypto_vpmsum<CR_char>"
  73   [(set (match_operand:CR_mode 0 "register_operand" "=v")
  74         (unspec:CR_mode [(match_operand:CR_mode 1 "register_operand" "v")
  75                          (match_operand:CR_mode 2 "register_operand" "v")]
  76                         UNSPEC_VPMSUM))]
  77   "TARGET_P8_VECTOR"
  78   "vpmsum<CR_char> %0,%1,%2"
  79   [(set_attr "type" "crypto")])
  80
  81 ;; 3 operand crypto instructions
  82 (define_insn "crypto_vpermxor_<mode>"
  83   [(set (match_operand:CR_mode 0 "register_operand" "=v")
  84         (unspec:CR_mode [(match_operand:CR_mode 1 "register_operand" "v")
  85                          (match_operand:CR_mode 2 "register_operand" "v")
  86                          (match_operand:CR_mode 3 "register_operand" "v")]
  87                         UNSPEC_VPERMXOR))]
  88   "TARGET_P8_VECTOR"
  89   "vpermxor %0,%1,%2,%3"
  90   [(set_attr "type" "vecperm")])
  91
  92 ;; 1 operand crypto instruction
  93 (define_insn "crypto_vsbox"
  94   [(set (match_operand:V2DI 0 "register_operand" "=v")
  95         (unspec:V2DI [(match_operand:V2DI 1 "register_operand" "v")]
  96                      UNSPEC_VSBOX))]
  97   "TARGET_CRYPTO"
  98   "vsbox %0,%1"
  99   [(set_attr "type" "crypto")])
 100
 101 ;; Hash crypto instructions
 102 (define_insn "crypto_vshasigma<CR_char>"
 103   [(set (match_operand:CR_hash 0 "register_operand" "=v")
 104         (unspec:CR_hash [(match_operand:CR_hash 1 "register_operand" "v")
 105                          (match_operand:SI 2 "const_0_to_1_operand" "n")
 106                          (match_operand:SI 3 "const_0_to_15_operand" "n")]
 107                         UNSPEC_VSHASIGMA))]
 108   "TARGET_CRYPTO"
 109   "vshasigma<CR_char> %0,%1,%2,%3"
 110   [(set_attr "type" "vecsimple")])