762a6333f2
The NIR story on conversion opcodes is a mess. We've had way too many of them, naming is inconsistent, and which ones have explicit sizes was sort-of random. This commit re-organizes things and makes them all consistent: - All non-bool conversion opcodes now have the explicit size in the destination and are named <src_type>2<dst_type><size>. - Integer <-> integer conversion opcodes now only come in i2i and u2u forms (i2u and u2i have been removed) since the only difference between the different integer conversions is whether or not they sign-extend when up-converting. - Boolean conversion opcodes all have the explicit size on the bool and are named <src_type>2<dst_type>. Making things consistent also allows nir_type_conversion_op to be moved to nir_opcodes.c and auto-generated using mako. This will make adding int8, int16, and float16 versions much easier when the time comes. Reviewed-by: Eric Anholt <eric@anholt.net>
121 lines
4.2 KiB
Python
121 lines
4.2 KiB
Python
#
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# Copyright (C) 2014 Connor Abbott
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#
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# Permission is hereby granted, free of charge, to any person obtaining a
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# copy of this software and associated documentation files (the "Software"),
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# to deal in the Software without restriction, including without limitation
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# the rights to use, copy, modify, merge, publish, distribute, sublicense,
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# and/or sell copies of the Software, and to permit persons to whom the
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# Software is furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice (including the next
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# paragraph) shall be included in all copies or substantial portions of the
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# Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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# IN THE SOFTWARE.
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#
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# Authors:
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# Connor Abbott (cwabbott0@gmail.com)
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from nir_opcodes import opcodes
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from mako.template import Template
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template = Template("""
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#include "nir.h"
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nir_op
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nir_type_conversion_op(nir_alu_type src, nir_alu_type dst)
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{
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nir_alu_type src_base = (nir_alu_type) nir_alu_type_get_base_type(src);
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nir_alu_type dst_base = (nir_alu_type) nir_alu_type_get_base_type(dst);
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unsigned src_bit_size = nir_alu_type_get_type_size(src);
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unsigned dst_bit_size = nir_alu_type_get_type_size(dst);
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if (src == dst && src_base == nir_type_float) {
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return nir_op_fmov;
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} else if ((src_base == nir_type_int || src_base == nir_type_uint) &&
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(dst_base == nir_type_int || dst_base == nir_type_uint) &&
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src_bit_size == dst_bit_size) {
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/* Integer <-> integer conversions with the same bit-size on both
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* ends are just no-op moves.
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*/
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return nir_op_imov;
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}
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switch (src_base) {
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% for src_t in ['int', 'uint', 'float']:
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case nir_type_${src_t}:
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switch (dst_base) {
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% for dst_t in ['int', 'uint', 'float']:
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case nir_type_${dst_t}:
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% if src_t in ['int', 'uint'] and dst_t in ['int', 'uint']:
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% if dst_t == 'int':
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<% continue %>
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% else:
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<% dst_t = src_t %>
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% endif
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% endif
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switch (dst_bit_size) {
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% for dst_bits in [32, 64]:
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case ${dst_bits}:
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return ${'nir_op_{}2{}{}'.format(src_t[0], dst_t[0], dst_bits)};
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% endfor
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default:
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unreachable("Invalid nir alu bit size");
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}
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% endfor
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case nir_type_bool:
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% if src_t == 'float':
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return nir_op_f2b;
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% else:
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return nir_op_i2b;
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% endif
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default:
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unreachable("Invalid nir alu base type");
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}
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% endfor
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case nir_type_bool:
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switch (dst_base) {
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case nir_type_int:
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case nir_type_uint:
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return nir_op_b2i;
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case nir_type_float:
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return nir_op_b2f;
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default:
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unreachable("Invalid nir alu base type");
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}
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default:
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unreachable("Invalid nir alu base type");
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}
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}
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const nir_op_info nir_op_infos[nir_num_opcodes] = {
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% for name, opcode in sorted(opcodes.iteritems()):
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{
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.name = "${name}",
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.num_inputs = ${opcode.num_inputs},
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.output_size = ${opcode.output_size},
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.output_type = ${"nir_type_" + opcode.output_type},
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.input_sizes = {
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${ ", ".join(str(size) for size in opcode.input_sizes) }
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},
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.input_types = {
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${ ", ".join("nir_type_" + type for type in opcode.input_types) }
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},
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.algebraic_properties =
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${ "0" if opcode.algebraic_properties == "" else " | ".join(
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"NIR_OP_IS_" + prop.upper() for prop in
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opcode.algebraic_properties.strip().split(" ")) }
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},
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% endfor
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};
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""")
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print template.render(opcodes=opcodes)
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