1#
2# Copyright (C) 2014 Connor Abbott
3#
4# Permission is hereby granted, free of charge, to any person obtaining a
5# copy of this software and associated documentation files (the "Software"),
6# to deal in the Software without restriction, including without limitation
7# the rights to use, copy, modify, merge, publish, distribute, sublicense,
8# and/or sell copies of the Software, and to permit persons to whom the
9# Software is furnished to do so, subject to the following conditions:
10#
11# The above copyright notice and this permission notice (including the next
12# paragraph) shall be included in all copies or substantial portions of the
13# Software.
14#
15# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21# IN THE SOFTWARE.
22#
23# Authors:
24#    Connor Abbott (cwabbott0@gmail.com)
25
26from nir_opcodes import opcodes, type_sizes
27from mako.template import Template
28
29template = Template("""
30#include "nir.h"
31
32nir_op
33nir_type_conversion_op(nir_alu_type src, nir_alu_type dst, nir_rounding_mode rnd)
34{
35   nir_alu_type src_base = (nir_alu_type) nir_alu_type_get_base_type(src);
36   nir_alu_type dst_base = (nir_alu_type) nir_alu_type_get_base_type(dst);
37   unsigned src_bit_size = nir_alu_type_get_type_size(src);
38   unsigned dst_bit_size = nir_alu_type_get_type_size(dst);
39
40   if (src == dst && src_base == nir_type_float) {
41      return nir_op_mov;
42   } else if (src == dst && src_base == nir_type_bool) {
43      return nir_op_mov;
44   } else if ((src_base == nir_type_int || src_base == nir_type_uint) &&
45              (dst_base == nir_type_int || dst_base == nir_type_uint) &&
46              src_bit_size == dst_bit_size) {
47      /* Integer <-> integer conversions with the same bit-size on both
48       * ends are just no-op moves.
49       */
50      return nir_op_mov;
51   }
52
53   switch (src_base) {
54%     for src_t in ['int', 'uint', 'float', 'bool']:
55      case nir_type_${src_t}:
56         switch (dst_base) {
57%           for dst_t in ['int', 'uint', 'float', 'bool']:
58            case nir_type_${dst_t}:
59%              if src_t in ['int', 'uint'] and dst_t in ['int', 'uint']:
60%                 if dst_t == 'int':
61<%                   continue %>
62%                 else:
63<%                   dst_t = src_t %>
64%                 endif
65%              elif src_t == 'bool' and dst_t in ['int', 'uint', 'bool']:
66%                 if dst_t == 'int':
67<%                   continue %>
68%                 else:
69<%                   dst_t = 'int' %>
70%                 endif
71%              elif src_t == 'uint' and dst_t == 'bool':
72<%                src_t = 'int' %>
73%              endif
74               switch (dst_bit_size) {
75%                 for dst_bits in type_sizes(dst_t):
76                  case ${dst_bits}:
77%                    if src_t == 'float' and dst_t == 'float' and dst_bits == 16:
78                     switch(rnd) {
79%                       for rnd_t in [('rtne', '_rtne'), ('rtz', '_rtz'), ('undef', '')]:
80                        case nir_rounding_mode_${rnd_t[0]}:
81                           return ${'nir_op_{0}2{1}{2}{3}'.format(src_t[0], dst_t[0],
82                                                                   dst_bits, rnd_t[1])};
83%                       endfor
84                        default:
85                           unreachable("Invalid 16-bit nir rounding mode");
86                     }
87%                    else:
88                     assert(rnd == nir_rounding_mode_undef);
89                     return ${'nir_op_{0}2{1}{2}'.format(src_t[0], dst_t[0], dst_bits)};
90%                    endif
91%                 endfor
92                  default:
93                     unreachable("Invalid nir alu bit size");
94               }
95%           endfor
96            default:
97               unreachable("Invalid nir alu base type");
98         }
99%     endfor
100      default:
101         unreachable("Invalid nir alu base type");
102   }
103}
104
105const nir_op_info nir_op_infos[nir_num_opcodes] = {
106% for name, opcode in sorted(opcodes.items()):
107{
108   .name = "${name}",
109   .num_inputs = ${opcode.num_inputs},
110   .output_size = ${opcode.output_size},
111   .output_type = ${"nir_type_" + opcode.output_type},
112   .input_sizes = {
113      ${ ", ".join(str(size) for size in opcode.input_sizes) }
114   },
115   .input_types = {
116      ${ ", ".join("nir_type_" + type for type in opcode.input_types) }
117   },
118   .is_conversion = ${"true" if opcode.is_conversion else "false"},
119   .algebraic_properties =
120      ${ "0" if opcode.algebraic_properties == "" else " | ".join(
121            "NIR_OP_IS_" + prop.upper() for prop in
122               opcode.algebraic_properties.strip().split(" ")) }
123},
124% endfor
125};
126""")
127
128print(template.render(opcodes=opcodes, type_sizes=type_sizes))
129