2 # Copyright (C) 2014 Connor Abbott
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:
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
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
24 # Connor Abbott (cwabbott0@gmail.com)
28 # Class that represents all the information we have about the opcode
29 # NOTE: this must be kept in sync with nir_op_info
32 """Class that represents all the information we have about the opcode
33 NOTE: this must be kept in sync with nir_op_info
35 def __init__(self
, name
, output_size
, output_type
, input_sizes
,
36 input_types
, is_conversion
, algebraic_properties
, const_expr
):
39 - name is the name of the opcode (prepend nir_op_ for the enum name)
40 - all types are strings that get nir_type_ prepended to them
41 - input_types is a list of types
42 - is_conversion is true if this opcode represents a type conversion
43 - algebraic_properties is a space-seperated string, where nir_op_is_ is
44 prepended before each entry
45 - const_expr is an expression or series of statements that computes the
46 constant value of the opcode given the constant values of its inputs.
48 Constant expressions are formed from the variables src0, src1, ...,
49 src(N-1), where N is the number of arguments. The output of the
50 expression should be stored in the dst variable. Per-component input
51 and output variables will be scalars and non-per-component input and
52 output variables will be a struct with fields named x, y, z, and w
53 all of the correct type. Input and output variables can be assumed
54 to already be of the correct type and need no conversion. In
55 particular, the conversion from the C bool type to/from NIR_TRUE and
56 NIR_FALSE happens automatically.
58 For per-component instructions, the entire expression will be
59 executed once for each component. For non-per-component
60 instructions, the expression is expected to store the correct values
61 in dst.x, dst.y, etc. If "dst" does not exist anywhere in the
62 constant expression, an assignment to dst will happen automatically
63 and the result will be equivalent to "dst = <expression>" for
64 per-component instructions and "dst.x = dst.y = ... = <expression>"
65 for non-per-component instructions.
67 assert isinstance(name
, str)
68 assert isinstance(output_size
, int)
69 assert isinstance(output_type
, str)
70 assert isinstance(input_sizes
, list)
71 assert isinstance(input_sizes
[0], int)
72 assert isinstance(input_types
, list)
73 assert isinstance(input_types
[0], str)
74 assert isinstance(is_conversion
, bool)
75 assert isinstance(algebraic_properties
, str)
76 assert isinstance(const_expr
, str)
77 assert len(input_sizes
) == len(input_types
)
78 assert 0 <= output_size
<= 4 or (output_size
== 8) or (output_size
== 16)
79 for size
in input_sizes
:
84 self
.num_inputs
= len(input_sizes
)
85 self
.output_size
= output_size
86 self
.output_type
= output_type
87 self
.input_sizes
= input_sizes
88 self
.input_types
= input_types
89 self
.is_conversion
= is_conversion
90 self
.algebraic_properties
= algebraic_properties
91 self
.const_expr
= const_expr
93 # helper variables for strings
111 _TYPE_SPLIT_RE
= re
.compile(r
'(?P<type>int|uint|float|bool)(?P<bits>\d+)?')
113 def type_has_size(type_
):
114 m
= _TYPE_SPLIT_RE
.match(type_
)
115 assert m
is not None, 'Invalid NIR type string: "{}"'.format(type_
)
116 return m
.group('bits') is not None
118 def type_size(type_
):
119 m
= _TYPE_SPLIT_RE
.match(type_
)
120 assert m
is not None, 'Invalid NIR type string: "{}"'.format(type_
)
121 assert m
.group('bits') is not None, \
122 'NIR type string has no bit size: "{}"'.format(type_
)
123 return int(m
.group('bits'))
125 def type_sizes(type_
):
126 if type_has_size(type_
):
127 return [type_size(type_
)]
128 elif type_
== 'bool':
129 return [1, 8, 16, 32]
130 elif type_
== 'float':
133 return [1, 8, 16, 32, 64]
135 def type_base_type(type_
):
136 m
= _TYPE_SPLIT_RE
.match(type_
)
137 assert m
is not None, 'Invalid NIR type string: "{}"'.format(type_
)
138 return m
.group('type')
140 # Operation where the first two sources are commutative.
142 # For 2-source operations, this just mathematical commutativity. Some
143 # 3-source operations, like ffma, are only commutative in the first two
145 _2src_commutative
= "2src_commutative "
146 associative
= "associative "
148 # global dictionary of opcodes
151 def opcode(name
, output_size
, output_type
, input_sizes
, input_types
,
152 is_conversion
, algebraic_properties
, const_expr
):
153 assert name
not in opcodes
154 opcodes
[name
] = Opcode(name
, output_size
, output_type
, input_sizes
,
155 input_types
, is_conversion
, algebraic_properties
,
158 def unop_convert(name
, out_type
, in_type
, const_expr
):
159 opcode(name
, 0, out_type
, [0], [in_type
], False, "", const_expr
)
161 def unop(name
, ty
, const_expr
):
162 opcode(name
, 0, ty
, [0], [ty
], False, "", const_expr
)
164 def unop_horiz(name
, output_size
, output_type
, input_size
, input_type
,
166 opcode(name
, output_size
, output_type
, [input_size
], [input_type
],
167 False, "", const_expr
)
169 def unop_reduce(name
, output_size
, output_type
, input_type
, prereduce_expr
,
170 reduce_expr
, final_expr
):
172 return "(" + prereduce_expr
.format(src
=src
) + ")"
174 return final_expr
.format(src
="(" + src
+ ")")
175 def reduce_(src0
, src1
):
176 return reduce_expr
.format(src0
=src0
, src1
=src1
)
177 src0
= prereduce("src0.x")
178 src1
= prereduce("src0.y")
179 src2
= prereduce("src0.z")
180 src3
= prereduce("src0.w")
181 unop_horiz(name
+ "2", output_size
, output_type
, 2, input_type
,
182 final(reduce_(src0
, src1
)))
183 unop_horiz(name
+ "3", output_size
, output_type
, 3, input_type
,
184 final(reduce_(reduce_(src0
, src1
), src2
)))
185 unop_horiz(name
+ "4", output_size
, output_type
, 4, input_type
,
186 final(reduce_(reduce_(src0
, src1
), reduce_(src2
, src3
))))
188 def unop_numeric_convert(name
, out_type
, in_type
, const_expr
):
189 opcode(name
, 0, out_type
, [0], [in_type
], True, "", const_expr
)
191 unop("mov", tuint
, "src0")
193 unop("ineg", tint
, "-src0")
194 unop("fneg", tfloat
, "-src0")
195 unop("inot", tint
, "~src0") # invert every bit of the integer
196 unop("fsign", tfloat
, ("bit_size == 64 ? " +
197 "((src0 == 0.0) ? 0.0 : ((src0 > 0.0) ? 1.0 : -1.0)) : " +
198 "((src0 == 0.0f) ? 0.0f : ((src0 > 0.0f) ? 1.0f : -1.0f))"))
199 unop("isign", tint
, "(src0 == 0) ? 0 : ((src0 > 0) ? 1 : -1)")
200 unop("iabs", tint
, "(src0 < 0) ? -src0 : src0")
201 unop("fabs", tfloat
, "fabs(src0)")
202 unop("fsat", tfloat
, ("fmin(fmax(src0, 0.0), 1.0)"))
203 unop("fsat_signed", tfloat
, ("fmin(fmax(src0, -1.0), 1.0)"))
204 unop("fclamp_pos", tfloat
, ("fmax(src0, 0.0)"))
205 unop("frcp", tfloat
, "bit_size == 64 ? 1.0 / src0 : 1.0f / src0")
206 unop("frsq", tfloat
, "bit_size == 64 ? 1.0 / sqrt(src0) : 1.0f / sqrtf(src0)")
207 unop("fsqrt", tfloat
, "bit_size == 64 ? sqrt(src0) : sqrtf(src0)")
208 unop("fexp2", tfloat
, "exp2f(src0)")
209 unop("flog2", tfloat
, "log2f(src0)")
211 # Generate all of the numeric conversion opcodes
212 for src_t
in [tint
, tuint
, tfloat
, tbool
]:
214 dst_types
= [tfloat
, tint
, tbool
]
216 dst_types
= [tfloat
, tint
, tbool
]
218 dst_types
= [tfloat
, tuint
]
219 elif src_t
== tfloat
:
220 dst_types
= [tint
, tuint
, tfloat
, tbool
]
222 for dst_t
in dst_types
:
223 for dst_bit_size
in type_sizes(dst_t
):
224 if dst_bit_size
== 16 and dst_t
== tfloat
and src_t
== tfloat
:
225 rnd_modes
= ['_rtne', '_rtz', '']
226 for rnd_mode
in rnd_modes
:
227 if rnd_mode
== '_rtne':
230 dst = _mesa_half_to_float(_mesa_float_to_float16_rtne(src0));
235 elif rnd_mode
== '_rtz':
238 dst = _mesa_half_to_float(_mesa_float_to_float16_rtz(src0));
246 unop_numeric_convert("{0}2{1}{2}{3}".format(src_t
[0],
250 dst_t
+ str(dst_bit_size
),
252 elif dst_bit_size
== 32 and dst_t
== tfloat
and src_t
== tfloat
:
254 if (bit_size > 32 && nir_is_rounding_mode_rtz(execution_mode, 32)) {
255 dst = _mesa_double_to_float_rtz(src0);
260 unop_numeric_convert("{0}2{1}{2}".format(src_t
[0], dst_t
[0],
262 dst_t
+ str(dst_bit_size
), src_t
, conv_expr
)
264 conv_expr
= "src0 != 0" if dst_t
== tbool
else "src0"
265 unop_numeric_convert("{0}2{1}{2}".format(src_t
[0], dst_t
[0],
267 dst_t
+ str(dst_bit_size
), src_t
, conv_expr
)
269 # Special opcode that is the same as f2f16 except that it is safe to remove it
270 # if the result is immediately converted back to float32 again. This is
271 # generated as part of the precision lowering pass. mp stands for medium
273 unop_numeric_convert("f2fmp", tfloat16
, tfloat
, opcodes
["f2f16"].const_expr
)
275 # Unary floating-point rounding operations.
278 unop("ftrunc", tfloat
, "bit_size == 64 ? trunc(src0) : truncf(src0)")
279 unop("fceil", tfloat
, "bit_size == 64 ? ceil(src0) : ceilf(src0)")
280 unop("ffloor", tfloat
, "bit_size == 64 ? floor(src0) : floorf(src0)")
281 unop("ffract", tfloat
, "src0 - (bit_size == 64 ? floor(src0) : floorf(src0))")
282 unop("fround_even", tfloat
, "bit_size == 64 ? _mesa_roundeven(src0) : _mesa_roundevenf(src0)")
284 unop("fquantize2f16", tfloat
, "(fabs(src0) < ldexpf(1.0, -14)) ? copysignf(0.0f, src0) : _mesa_half_to_float(_mesa_float_to_half(src0))")
286 # Trigonometric operations.
289 unop("fsin", tfloat
, "bit_size == 64 ? sin(src0) : sinf(src0)")
290 unop("fcos", tfloat
, "bit_size == 64 ? cos(src0) : cosf(src0)")
293 unop_convert("frexp_exp", tint32
, tfloat
, "frexp(src0, &dst);")
294 unop_convert("frexp_sig", tfloat
, tfloat
, "int n; dst = frexp(src0, &n);")
296 # Partial derivatives.
299 unop("fddx", tfloat
, "0.0") # the derivative of a constant is 0.
300 unop("fddy", tfloat
, "0.0")
301 unop("fddx_fine", tfloat
, "0.0")
302 unop("fddy_fine", tfloat
, "0.0")
303 unop("fddx_coarse", tfloat
, "0.0")
304 unop("fddy_coarse", tfloat
, "0.0")
307 # Floating point pack and unpack operations.
310 unop_horiz("pack_" + fmt
+ "_2x16", 1, tuint32
, 2, tfloat32
, """
311 dst.x = (uint32_t) pack_fmt_1x16(src0.x);
312 dst.x |= ((uint32_t) pack_fmt_1x16(src0.y)) << 16;
313 """.replace("fmt", fmt
))
316 unop_horiz("pack_" + fmt
+ "_4x8", 1, tuint32
, 4, tfloat32
, """
317 dst.x = (uint32_t) pack_fmt_1x8(src0.x);
318 dst.x |= ((uint32_t) pack_fmt_1x8(src0.y)) << 8;
319 dst.x |= ((uint32_t) pack_fmt_1x8(src0.z)) << 16;
320 dst.x |= ((uint32_t) pack_fmt_1x8(src0.w)) << 24;
321 """.replace("fmt", fmt
))
323 def unpack_2x16(fmt
):
324 unop_horiz("unpack_" + fmt
+ "_2x16", 2, tfloat32
, 1, tuint32
, """
325 dst.x = unpack_fmt_1x16((uint16_t)(src0.x & 0xffff));
326 dst.y = unpack_fmt_1x16((uint16_t)(src0.x << 16));
327 """.replace("fmt", fmt
))
330 unop_horiz("unpack_" + fmt
+ "_4x8", 4, tfloat32
, 1, tuint32
, """
331 dst.x = unpack_fmt_1x8((uint8_t)(src0.x & 0xff));
332 dst.y = unpack_fmt_1x8((uint8_t)((src0.x >> 8) & 0xff));
333 dst.z = unpack_fmt_1x8((uint8_t)((src0.x >> 16) & 0xff));
334 dst.w = unpack_fmt_1x8((uint8_t)(src0.x >> 24));
335 """.replace("fmt", fmt
))
349 unop_horiz("pack_uvec2_to_uint", 1, tuint32
, 2, tuint32
, """
350 dst.x = (src0.x & 0xffff) | (src0.y << 16);
353 unop_horiz("pack_uvec4_to_uint", 1, tuint32
, 4, tuint32
, """
354 dst.x = (src0.x << 0) |
360 unop_horiz("pack_32_2x16", 1, tuint32
, 2, tuint16
,
361 "dst.x = src0.x | ((uint32_t)src0.y << 16);")
363 unop_horiz("pack_64_2x32", 1, tuint64
, 2, tuint32
,
364 "dst.x = src0.x | ((uint64_t)src0.y << 32);")
366 unop_horiz("pack_64_4x16", 1, tuint64
, 4, tuint16
,
367 "dst.x = src0.x | ((uint64_t)src0.y << 16) | ((uint64_t)src0.z << 32) | ((uint64_t)src0.w << 48);")
369 unop_horiz("unpack_64_2x32", 2, tuint32
, 1, tuint64
,
370 "dst.x = src0.x; dst.y = src0.x >> 32;")
372 unop_horiz("unpack_64_4x16", 4, tuint16
, 1, tuint64
,
373 "dst.x = src0.x; dst.y = src0.x >> 16; dst.z = src0.x >> 32; dst.w = src0.w >> 48;")
375 unop_horiz("unpack_32_2x16", 2, tuint16
, 1, tuint32
,
376 "dst.x = src0.x; dst.y = src0.x >> 16;")
378 unop_horiz("unpack_half_2x16_flush_to_zero", 2, tfloat32
, 1, tuint32
, """
379 dst.x = unpack_half_1x16_flush_to_zero((uint16_t)(src0.x & 0xffff));
380 dst.y = unpack_half_1x16_flush_to_zero((uint16_t)(src0.x << 16));
383 # Lowered floating point unpacking operations.
385 unop_convert("unpack_half_2x16_split_x", tfloat32
, tuint32
,
386 "unpack_half_1x16((uint16_t)(src0 & 0xffff))")
387 unop_convert("unpack_half_2x16_split_y", tfloat32
, tuint32
,
388 "unpack_half_1x16((uint16_t)(src0 >> 16))")
390 unop_convert("unpack_half_2x16_split_x_flush_to_zero", tfloat32
, tuint32
,
391 "unpack_half_1x16_flush_to_zero((uint16_t)(src0 & 0xffff))")
392 unop_convert("unpack_half_2x16_split_y_flush_to_zero", tfloat32
, tuint32
,
393 "unpack_half_1x16_flush_to_zero((uint16_t)(src0 >> 16))")
395 unop_convert("unpack_32_2x16_split_x", tuint16
, tuint32
, "src0")
396 unop_convert("unpack_32_2x16_split_y", tuint16
, tuint32
, "src0 >> 16")
398 unop_convert("unpack_64_2x32_split_x", tuint32
, tuint64
, "src0")
399 unop_convert("unpack_64_2x32_split_y", tuint32
, tuint64
, "src0 >> 32")
401 # Bit operations, part of ARB_gpu_shader5.
404 unop("bitfield_reverse", tuint32
, """
405 /* we're not winning any awards for speed here, but that's ok */
407 for (unsigned bit = 0; bit < 32; bit++)
408 dst |= ((src0 >> bit) & 1) << (31 - bit);
410 unop_convert("bit_count", tuint32
, tuint
, """
412 for (unsigned bit = 0; bit < bit_size; bit++) {
413 if ((src0 >> bit) & 1)
418 unop_convert("ufind_msb", tint32
, tuint
, """
420 for (int bit = bit_size - 1; bit >= 0; bit--) {
421 if ((src0 >> bit) & 1) {
428 unop("uclz", tuint32
, """
430 for (bit = bit_size - 1; bit >= 0; bit--) {
431 if ((src0 & (1u << bit)) != 0)
434 dst = (unsigned)(31 - bit);
437 unop("ifind_msb", tint32
, """
439 for (int bit = 31; bit >= 0; bit--) {
440 /* If src0 < 0, we're looking for the first 0 bit.
441 * if src0 >= 0, we're looking for the first 1 bit.
443 if ((((src0 >> bit) & 1) && (src0 >= 0)) ||
444 (!((src0 >> bit) & 1) && (src0 < 0))) {
451 unop_convert("find_lsb", tint32
, tint
, """
453 for (unsigned bit = 0; bit < bit_size; bit++) {
454 if ((src0 >> bit) & 1) {
461 # AMD_gcn_shader extended instructions
462 unop_horiz("cube_face_coord", 2, tfloat32
, 3, tfloat32
, """
464 float absX = fabsf(src0.x);
465 float absY = fabsf(src0.y);
466 float absZ = fabsf(src0.z);
469 if (absX >= absY && absX >= absZ) { ma = 2 * src0.x; }
470 if (absY >= absX && absY >= absZ) { ma = 2 * src0.y; }
471 if (absZ >= absX && absZ >= absY) { ma = 2 * src0.z; }
473 if (src0.x >= 0 && absX >= absY && absX >= absZ) { dst.x = -src0.z; dst.y = -src0.y; }
474 if (src0.x < 0 && absX >= absY && absX >= absZ) { dst.x = src0.z; dst.y = -src0.y; }
475 if (src0.y >= 0 && absY >= absX && absY >= absZ) { dst.x = src0.x; dst.y = src0.z; }
476 if (src0.y < 0 && absY >= absX && absY >= absZ) { dst.x = src0.x; dst.y = -src0.z; }
477 if (src0.z >= 0 && absZ >= absX && absZ >= absY) { dst.x = src0.x; dst.y = -src0.y; }
478 if (src0.z < 0 && absZ >= absX && absZ >= absY) { dst.x = -src0.x; dst.y = -src0.y; }
480 dst.x = dst.x / ma + 0.5;
481 dst.y = dst.y / ma + 0.5;
484 unop_horiz("cube_face_index", 1, tfloat32
, 3, tfloat32
, """
485 float absX = fabsf(src0.x);
486 float absY = fabsf(src0.y);
487 float absZ = fabsf(src0.z);
488 if (src0.x >= 0 && absX >= absY && absX >= absZ) dst.x = 0;
489 if (src0.x < 0 && absX >= absY && absX >= absZ) dst.x = 1;
490 if (src0.y >= 0 && absY >= absX && absY >= absZ) dst.x = 2;
491 if (src0.y < 0 && absY >= absX && absY >= absZ) dst.x = 3;
492 if (src0.z >= 0 && absZ >= absX && absZ >= absY) dst.x = 4;
493 if (src0.z < 0 && absZ >= absX && absZ >= absY) dst.x = 5;
496 # Sum of vector components
497 unop_reduce("fsum", 1, tfloat
, tfloat
, "{src}", "{src0} + {src1}", "{src}")
499 def binop_convert(name
, out_type
, in_type
, alg_props
, const_expr
):
500 opcode(name
, 0, out_type
, [0, 0], [in_type
, in_type
],
501 False, alg_props
, const_expr
)
503 def binop(name
, ty
, alg_props
, const_expr
):
504 binop_convert(name
, ty
, ty
, alg_props
, const_expr
)
506 def binop_compare(name
, ty
, alg_props
, const_expr
):
507 binop_convert(name
, tbool1
, ty
, alg_props
, const_expr
)
509 def binop_compare8(name
, ty
, alg_props
, const_expr
):
510 binop_convert(name
, tbool8
, ty
, alg_props
, const_expr
)
512 def binop_compare16(name
, ty
, alg_props
, const_expr
):
513 binop_convert(name
, tbool16
, ty
, alg_props
, const_expr
)
515 def binop_compare32(name
, ty
, alg_props
, const_expr
):
516 binop_convert(name
, tbool32
, ty
, alg_props
, const_expr
)
518 def binop_compare_all_sizes(name
, ty
, alg_props
, const_expr
):
519 binop_compare(name
, ty
, alg_props
, const_expr
)
520 binop_compare8(name
+ "8", ty
, alg_props
, const_expr
)
521 binop_compare16(name
+ "16", ty
, alg_props
, const_expr
)
522 binop_compare32(name
+ "32", ty
, alg_props
, const_expr
)
524 def binop_horiz(name
, out_size
, out_type
, src1_size
, src1_type
, src2_size
,
525 src2_type
, const_expr
):
526 opcode(name
, out_size
, out_type
, [src1_size
, src2_size
], [src1_type
, src2_type
],
527 False, "", const_expr
)
529 def binop_reduce(name
, output_size
, output_type
, src_type
, prereduce_expr
,
530 reduce_expr
, final_expr
):
532 return final_expr
.format(src
= "(" + src
+ ")")
533 def reduce_(src0
, src1
):
534 return reduce_expr
.format(src0
=src0
, src1
=src1
)
535 def prereduce(src0
, src1
):
536 return "(" + prereduce_expr
.format(src0
=src0
, src1
=src1
) + ")"
537 src0
= prereduce("src0.x", "src1.x")
538 src1
= prereduce("src0.y", "src1.y")
539 src2
= prereduce("src0.z", "src1.z")
540 src3
= prereduce("src0.w", "src1.w")
541 opcode(name
+ "2", output_size
, output_type
,
542 [2, 2], [src_type
, src_type
], False, _2src_commutative
,
543 final(reduce_(src0
, src1
)))
544 opcode(name
+ "3", output_size
, output_type
,
545 [3, 3], [src_type
, src_type
], False, _2src_commutative
,
546 final(reduce_(reduce_(src0
, src1
), src2
)))
547 opcode(name
+ "4", output_size
, output_type
,
548 [4, 4], [src_type
, src_type
], False, _2src_commutative
,
549 final(reduce_(reduce_(src0
, src1
), reduce_(src2
, src3
))))
551 def binop_reduce_all_sizes(name
, output_size
, src_type
, prereduce_expr
,
552 reduce_expr
, final_expr
):
553 binop_reduce(name
, output_size
, tbool1
, src_type
,
554 prereduce_expr
, reduce_expr
, final_expr
)
555 binop_reduce("b8" + name
[1:], output_size
, tbool8
, src_type
,
556 prereduce_expr
, reduce_expr
, final_expr
)
557 binop_reduce("b16" + name
[1:], output_size
, tbool16
, src_type
,
558 prereduce_expr
, reduce_expr
, final_expr
)
559 binop_reduce("b32" + name
[1:], output_size
, tbool32
, src_type
,
560 prereduce_expr
, reduce_expr
, final_expr
)
562 binop("fadd", tfloat
, _2src_commutative
+ associative
,"""
563 if (nir_is_rounding_mode_rtz(execution_mode, bit_size)) {
565 dst = _mesa_double_add_rtz(src0, src1);
567 dst = _mesa_double_to_float_rtz((double)src0 + (double)src1);
572 binop("iadd", tint
, _2src_commutative
+ associative
, "src0 + src1")
573 binop("iadd_sat", tint
, _2src_commutative
, """
575 (src0 + src1 < src0 ? (1ull << (bit_size - 1)) - 1 : src0 + src1) :
576 (src0 < src0 + src1 ? (1ull << (bit_size - 1)) : src0 + src1)
578 binop("uadd_sat", tuint
, _2src_commutative
,
579 "(src0 + src1) < src0 ? MAX_UINT_FOR_SIZE(sizeof(src0) * 8) : (src0 + src1)")
580 binop("isub_sat", tint
, "", """
582 (src0 - src1 < src0 ? (1ull << (bit_size - 1)) - 1 : src0 - src1) :
583 (src0 < src0 - src1 ? (1ull << (bit_size - 1)) : src0 - src1)
585 binop("usub_sat", tuint
, "", "src0 < src1 ? 0 : src0 - src1")
587 binop("fsub", tfloat
, "", """
588 if (nir_is_rounding_mode_rtz(execution_mode, bit_size)) {
590 dst = _mesa_double_sub_rtz(src0, src1);
592 dst = _mesa_double_to_float_rtz((double)src0 - (double)src1);
597 binop("isub", tint
, "", "src0 - src1")
598 binop_convert("uabs_isub", tuint
, tint
, "", """
599 src1 > src0 ? (uint64_t) src1 - (uint64_t) src0
600 : (uint64_t) src0 - (uint64_t) src1
602 binop("uabs_usub", tuint
, "", "(src1 > src0) ? (src1 - src0) : (src0 - src1)")
604 binop("fmul", tfloat
, _2src_commutative
+ associative
, """
605 if (nir_is_rounding_mode_rtz(execution_mode, bit_size)) {
607 dst = _mesa_double_mul_rtz(src0, src1);
609 dst = _mesa_double_to_float_rtz((double)src0 * (double)src1);
614 # low 32-bits of signed/unsigned integer multiply
615 binop("imul", tint
, _2src_commutative
+ associative
, "src0 * src1")
617 # Generate 64 bit result from 2 32 bits quantity
618 binop_convert("imul_2x32_64", tint64
, tint32
, _2src_commutative
,
619 "(int64_t)src0 * (int64_t)src1")
620 binop_convert("umul_2x32_64", tuint64
, tuint32
, _2src_commutative
,
621 "(uint64_t)src0 * (uint64_t)src1")
623 # high 32-bits of signed integer multiply
624 binop("imul_high", tint
, _2src_commutative
, """
625 if (bit_size == 64) {
626 /* We need to do a full 128-bit x 128-bit multiply in order for the sign
627 * extension to work properly. The casts are kind-of annoying but needed
628 * to prevent compiler warnings.
630 uint32_t src0_u32[4] = {
636 uint32_t src1_u32[4] = {
642 uint32_t prod_u32[4];
643 ubm_mul_u32arr(prod_u32, src0_u32, src1_u32);
644 dst = (uint64_t)prod_u32[2] | ((uint64_t)prod_u32[3] << 32);
646 dst = ((int64_t)src0 * (int64_t)src1) >> bit_size;
650 # high 32-bits of unsigned integer multiply
651 binop("umul_high", tuint
, _2src_commutative
, """
652 if (bit_size == 64) {
653 /* The casts are kind-of annoying but needed to prevent compiler warnings. */
654 uint32_t src0_u32[2] = { src0, (uint64_t)src0 >> 32 };
655 uint32_t src1_u32[2] = { src1, (uint64_t)src1 >> 32 };
656 uint32_t prod_u32[4];
657 ubm_mul_u32arr(prod_u32, src0_u32, src1_u32);
658 dst = (uint64_t)prod_u32[2] | ((uint64_t)prod_u32[3] << 32);
660 dst = ((uint64_t)src0 * (uint64_t)src1) >> bit_size;
664 # low 32-bits of unsigned integer multiply
665 binop("umul_low", tuint32
, _2src_commutative
, """
666 uint64_t mask = (1 << (bit_size / 2)) - 1;
667 dst = ((uint64_t)src0 & mask) * ((uint64_t)src1 & mask);
670 # Multiply 32-bits with low 16-bits.
671 binop("imul_32x16", tint32
, "", "src0 * (int16_t) src1")
672 binop("umul_32x16", tuint32
, "", "src0 * (uint16_t) src1")
674 binop("fdiv", tfloat
, "", "src0 / src1")
675 binop("idiv", tint
, "", "src1 == 0 ? 0 : (src0 / src1)")
676 binop("udiv", tuint
, "", "src1 == 0 ? 0 : (src0 / src1)")
678 # returns a boolean representing the carry resulting from the addition of
679 # the two unsigned arguments.
681 binop_convert("uadd_carry", tuint
, tuint
, _2src_commutative
, "src0 + src1 < src0")
683 # returns a boolean representing the borrow resulting from the subtraction
684 # of the two unsigned arguments.
686 binop_convert("usub_borrow", tuint
, tuint
, "", "src0 < src1")
688 # hadd: (a + b) >> 1 (without overflow)
689 # x + y = x - (x & ~y) + (x & ~y) + y - (~x & y) + (~x & y)
690 # = (x & y) + (x & ~y) + (x & y) + (~x & y)
691 # = 2 * (x & y) + (x & ~y) + (~x & y)
692 # = ((x & y) << 1) + (x ^ y)
694 # Since we know that the bottom bit of (x & y) << 1 is zero,
696 # (x + y) >> 1 = (((x & y) << 1) + (x ^ y)) >> 1
697 # = (x & y) + ((x ^ y) >> 1)
698 binop("ihadd", tint
, _2src_commutative
, "(src0 & src1) + ((src0 ^ src1) >> 1)")
699 binop("uhadd", tuint
, _2src_commutative
, "(src0 & src1) + ((src0 ^ src1) >> 1)")
701 # rhadd: (a + b + 1) >> 1 (without overflow)
702 # x + y + 1 = x + (~x & y) - (~x & y) + y + (x & ~y) - (x & ~y) + 1
703 # = (x | y) - (~x & y) + (x | y) - (x & ~y) + 1
704 # = 2 * (x | y) - ((~x & y) + (x & ~y)) + 1
705 # = ((x | y) << 1) - (x ^ y) + 1
707 # Since we know that the bottom bit of (x & y) << 1 is zero,
709 # (x + y + 1) >> 1 = (x | y) + (-(x ^ y) + 1) >> 1)
710 # = (x | y) - ((x ^ y) >> 1)
711 binop("irhadd", tint
, _2src_commutative
, "(src0 | src1) + ((src0 ^ src1) >> 1)")
712 binop("urhadd", tuint
, _2src_commutative
, "(src0 | src1) + ((src0 ^ src1) >> 1)")
714 binop("umod", tuint
, "", "src1 == 0 ? 0 : src0 % src1")
716 # For signed integers, there are several different possible definitions of
717 # "modulus" or "remainder". We follow the conventions used by LLVM and
718 # SPIR-V. The irem opcode implements the standard C/C++ signed "%"
719 # operation while the imod opcode implements the more mathematical
720 # "modulus" operation. For details on the difference, see
722 # http://mathforum.org/library/drmath/view/52343.html
724 binop("irem", tint
, "", "src1 == 0 ? 0 : src0 % src1")
725 binop("imod", tint
, "",
726 "src1 == 0 ? 0 : ((src0 % src1 == 0 || (src0 >= 0) == (src1 >= 0)) ?"
727 " src0 % src1 : src0 % src1 + src1)")
728 binop("fmod", tfloat
, "", "src0 - src1 * floorf(src0 / src1)")
729 binop("frem", tfloat
, "", "src0 - src1 * truncf(src0 / src1)")
736 # these integer-aware comparisons return a boolean (0 or ~0)
738 binop_compare_all_sizes("flt", tfloat
, "", "src0 < src1")
739 binop_compare_all_sizes("fge", tfloat
, "", "src0 >= src1")
740 binop_compare_all_sizes("feq", tfloat
, _2src_commutative
, "src0 == src1")
741 binop_compare_all_sizes("fne", tfloat
, _2src_commutative
, "src0 != src1")
742 binop_compare_all_sizes("ilt", tint
, "", "src0 < src1")
743 binop_compare_all_sizes("ige", tint
, "", "src0 >= src1")
744 binop_compare_all_sizes("ieq", tint
, _2src_commutative
, "src0 == src1")
745 binop_compare_all_sizes("ine", tint
, _2src_commutative
, "src0 != src1")
746 binop_compare_all_sizes("ult", tuint
, "", "src0 < src1")
747 binop_compare_all_sizes("uge", tuint
, "", "src0 >= src1")
749 # integer-aware GLSL-style comparisons that compare floats and ints
751 binop_reduce_all_sizes("ball_fequal", 1, tfloat
, "{src0} == {src1}",
752 "{src0} && {src1}", "{src}")
753 binop_reduce_all_sizes("bany_fnequal", 1, tfloat
, "{src0} != {src1}",
754 "{src0} || {src1}", "{src}")
755 binop_reduce_all_sizes("ball_iequal", 1, tint
, "{src0} == {src1}",
756 "{src0} && {src1}", "{src}")
757 binop_reduce_all_sizes("bany_inequal", 1, tint
, "{src0} != {src1}",
758 "{src0} || {src1}", "{src}")
760 # non-integer-aware GLSL-style comparisons that return 0.0 or 1.0
762 binop_reduce("fall_equal", 1, tfloat32
, tfloat32
, "{src0} == {src1}",
763 "{src0} && {src1}", "{src} ? 1.0f : 0.0f")
764 binop_reduce("fany_nequal", 1, tfloat32
, tfloat32
, "{src0} != {src1}",
765 "{src0} || {src1}", "{src} ? 1.0f : 0.0f")
767 # These comparisons for integer-less hardware return 1.0 and 0.0 for true
768 # and false respectively
770 binop("slt", tfloat32
, "", "(src0 < src1) ? 1.0f : 0.0f") # Set on Less Than
771 binop("sge", tfloat
, "", "(src0 >= src1) ? 1.0f : 0.0f") # Set on Greater or Equal
772 binop("seq", tfloat32
, _2src_commutative
, "(src0 == src1) ? 1.0f : 0.0f") # Set on Equal
773 binop("sne", tfloat32
, _2src_commutative
, "(src0 != src1) ? 1.0f : 0.0f") # Set on Not Equal
775 # SPIRV shifts are undefined for shift-operands >= bitsize,
776 # but SM5 shifts are defined to use the least significant bits, only
777 # The NIR definition is according to the SM5 specification.
778 opcode("ishl", 0, tint
, [0, 0], [tint
, tuint32
], False, "",
779 "src0 << (src1 & (sizeof(src0) * 8 - 1))")
780 opcode("ishr", 0, tint
, [0, 0], [tint
, tuint32
], False, "",
781 "src0 >> (src1 & (sizeof(src0) * 8 - 1))")
782 opcode("ushr", 0, tuint
, [0, 0], [tuint
, tuint32
], False, "",
783 "src0 >> (src1 & (sizeof(src0) * 8 - 1))")
785 opcode("urol", 0, tuint
, [0, 0], [tuint
, tuint32
], False, "", """
786 uint32_t rotate_mask = sizeof(src0) * 8 - 1;
787 dst = (src0 << (src1 & rotate_mask)) |
788 (src0 >> (-src1 & rotate_mask));
790 opcode("uror", 0, tuint
, [0, 0], [tuint
, tuint32
], False, "", """
791 uint32_t rotate_mask = sizeof(src0) * 8 - 1;
792 dst = (src0 >> (src1 & rotate_mask)) |
793 (src0 << (-src1 & rotate_mask));
796 # bitwise logic operators
798 # These are also used as boolean and, or, xor for hardware supporting
802 binop("iand", tuint
, _2src_commutative
+ associative
, "src0 & src1")
803 binop("ior", tuint
, _2src_commutative
+ associative
, "src0 | src1")
804 binop("ixor", tuint
, _2src_commutative
+ associative
, "src0 ^ src1")
807 binop_reduce("fdot", 1, tfloat
, tfloat
, "{src0} * {src1}", "{src0} + {src1}",
810 binop_reduce("fdot_replicated", 4, tfloat
, tfloat
,
811 "{src0} * {src1}", "{src0} + {src1}", "{src}")
813 opcode("fdph", 1, tfloat
, [3, 4], [tfloat
, tfloat
], False, "",
814 "src0.x * src1.x + src0.y * src1.y + src0.z * src1.z + src1.w")
815 opcode("fdph_replicated", 4, tfloat
, [3, 4], [tfloat
, tfloat
], False, "",
816 "src0.x * src1.x + src0.y * src1.y + src0.z * src1.z + src1.w")
818 binop("fmin", tfloat
, _2src_commutative
+ associative
, "fmin(src0, src1)")
819 binop("imin", tint
, _2src_commutative
+ associative
, "src1 > src0 ? src0 : src1")
820 binop("umin", tuint
, _2src_commutative
+ associative
, "src1 > src0 ? src0 : src1")
821 binop("fmax", tfloat
, _2src_commutative
+ associative
, "fmax(src0, src1)")
822 binop("imax", tint
, _2src_commutative
+ associative
, "src1 > src0 ? src1 : src0")
823 binop("umax", tuint
, _2src_commutative
+ associative
, "src1 > src0 ? src1 : src0")
825 # Saturated vector add for 4 8bit ints.
826 binop("usadd_4x8", tint32
, _2src_commutative
+ associative
, """
828 for (int i = 0; i < 32; i += 8) {
829 dst |= MIN2(((src0 >> i) & 0xff) + ((src1 >> i) & 0xff), 0xff) << i;
833 # Saturated vector subtract for 4 8bit ints.
834 binop("ussub_4x8", tint32
, "", """
836 for (int i = 0; i < 32; i += 8) {
837 int src0_chan = (src0 >> i) & 0xff;
838 int src1_chan = (src1 >> i) & 0xff;
839 if (src0_chan > src1_chan)
840 dst |= (src0_chan - src1_chan) << i;
844 # vector min for 4 8bit ints.
845 binop("umin_4x8", tint32
, _2src_commutative
+ associative
, """
847 for (int i = 0; i < 32; i += 8) {
848 dst |= MIN2((src0 >> i) & 0xff, (src1 >> i) & 0xff) << i;
852 # vector max for 4 8bit ints.
853 binop("umax_4x8", tint32
, _2src_commutative
+ associative
, """
855 for (int i = 0; i < 32; i += 8) {
856 dst |= MAX2((src0 >> i) & 0xff, (src1 >> i) & 0xff) << i;
860 # unorm multiply: (a * b) / 255.
861 binop("umul_unorm_4x8", tint32
, _2src_commutative
+ associative
, """
863 for (int i = 0; i < 32; i += 8) {
864 int src0_chan = (src0 >> i) & 0xff;
865 int src1_chan = (src1 >> i) & 0xff;
866 dst |= ((src0_chan * src1_chan) / 255) << i;
870 binop("fpow", tfloat
, "", "bit_size == 64 ? powf(src0, src1) : pow(src0, src1)")
872 binop_horiz("pack_half_2x16_split", 1, tuint32
, 1, tfloat32
, 1, tfloat32
,
873 "pack_half_1x16(src0.x) | (pack_half_1x16(src1.x) << 16)")
875 binop_convert("pack_64_2x32_split", tuint64
, tuint32
, "",
876 "src0 | ((uint64_t)src1 << 32)")
878 binop_convert("pack_32_2x16_split", tuint32
, tuint16
, "",
879 "src0 | ((uint32_t)src1 << 16)")
881 # bfm implements the behavior of the first operation of the SM5 "bfi" assembly
882 # and that of the "bfi1" i965 instruction. That is, the bits and offset values
883 # are from the low five bits of src0 and src1, respectively.
884 binop_convert("bfm", tuint32
, tint32
, "", """
885 int bits = src0 & 0x1F;
886 int offset = src1 & 0x1F;
887 dst = ((1u << bits) - 1) << offset;
890 opcode("ldexp", 0, tfloat
, [0, 0], [tfloat
, tint32
], False, "", """
891 dst = (bit_size == 64) ? ldexp(src0, src1) : ldexpf(src0, src1);
892 /* flush denormals to zero. */
894 dst = copysignf(0.0f, src0);
897 # Combines the first component of each input to make a 2-component vector.
899 binop_horiz("vec2", 2, tuint
, 1, tuint
, 1, tuint
, """
905 binop("extract_u8", tuint
, "", "(uint8_t)(src0 >> (src1 * 8))")
906 binop("extract_i8", tint
, "", "(int8_t)(src0 >> (src1 * 8))")
909 binop("extract_u16", tuint
, "", "(uint16_t)(src0 >> (src1 * 16))")
910 binop("extract_i16", tint
, "", "(int16_t)(src0 >> (src1 * 16))")
913 def triop(name
, ty
, alg_props
, const_expr
):
914 opcode(name
, 0, ty
, [0, 0, 0], [ty
, ty
, ty
], False, alg_props
, const_expr
)
915 def triop_horiz(name
, output_size
, src1_size
, src2_size
, src3_size
, const_expr
):
916 opcode(name
, output_size
, tuint
,
917 [src1_size
, src2_size
, src3_size
],
918 [tuint
, tuint
, tuint
], False, "", const_expr
)
920 triop("ffma", tfloat
, _2src_commutative
, """
921 if (nir_is_rounding_mode_rtz(execution_mode, bit_size)) {
923 dst = _mesa_double_fma_rtz(src0, src1, src2);
924 else if (bit_size == 32)
925 dst = _mesa_float_fma_rtz(src0, src1, src2);
927 dst = _mesa_double_to_float_rtz(_mesa_double_fma_rtz(src0, src1, src2));
930 dst = fmaf(src0, src1, src2);
932 dst = fma(src0, src1, src2);
936 triop("flrp", tfloat
, "", "src0 * (1 - src2) + src1 * src2")
940 # A vector conditional select instruction (like ?:, but operating per-
941 # component on vectors). There are two versions, one for floating point
942 # bools (0.0 vs 1.0) and one for integer bools (0 vs ~0).
945 triop("fcsel", tfloat32
, "", "(src0 != 0.0f) ? src1 : src2")
948 triop("fmin3", tfloat
, "", "fminf(src0, fminf(src1, src2))")
949 triop("imin3", tint
, "", "MIN2(src0, MIN2(src1, src2))")
950 triop("umin3", tuint
, "", "MIN2(src0, MIN2(src1, src2))")
952 triop("fmax3", tfloat
, "", "fmaxf(src0, fmaxf(src1, src2))")
953 triop("imax3", tint
, "", "MAX2(src0, MAX2(src1, src2))")
954 triop("umax3", tuint
, "", "MAX2(src0, MAX2(src1, src2))")
956 triop("fmed3", tfloat
, "", "fmaxf(fminf(fmaxf(src0, src1), src2), fminf(src0, src1))")
957 triop("imed3", tint
, "", "MAX2(MIN2(MAX2(src0, src1), src2), MIN2(src0, src1))")
958 triop("umed3", tuint
, "", "MAX2(MIN2(MAX2(src0, src1), src2), MIN2(src0, src1))")
960 opcode("bcsel", 0, tuint
, [0, 0, 0],
961 [tbool1
, tuint
, tuint
], False, "", "src0 ? src1 : src2")
962 opcode("b8csel", 0, tuint
, [0, 0, 0],
963 [tbool8
, tuint
, tuint
], False, "", "src0 ? src1 : src2")
964 opcode("b16csel", 0, tuint
, [0, 0, 0],
965 [tbool16
, tuint
, tuint
], False, "", "src0 ? src1 : src2")
966 opcode("b32csel", 0, tuint
, [0, 0, 0],
967 [tbool32
, tuint
, tuint
], False, "", "src0 ? src1 : src2")
970 triop("bfi", tuint32
, "", """
971 unsigned mask = src0, insert = src1, base = src2;
980 dst = (base & ~mask) | (insert & mask);
985 triop("bitfield_select", tuint
, "", "(src0 & src1) | (~src0 & src2)")
987 # SM5 ubfe/ibfe assembly: only the 5 least significant bits of offset and bits are used.
988 opcode("ubfe", 0, tuint32
,
989 [0, 0, 0], [tuint32
, tuint32
, tuint32
], False, "", """
990 unsigned base = src0;
991 unsigned offset = src1 & 0x1F;
992 unsigned bits = src2 & 0x1F;
995 } else if (offset + bits < 32) {
996 dst = (base << (32 - bits - offset)) >> (32 - bits);
998 dst = base >> offset;
1001 opcode("ibfe", 0, tint32
,
1002 [0, 0, 0], [tint32
, tuint32
, tuint32
], False, "", """
1004 unsigned offset = src1 & 0x1F;
1005 unsigned bits = src2 & 0x1F;
1008 } else if (offset + bits < 32) {
1009 dst = (base << (32 - bits - offset)) >> (32 - bits);
1011 dst = base >> offset;
1015 # GLSL bitfieldExtract()
1016 opcode("ubitfield_extract", 0, tuint32
,
1017 [0, 0, 0], [tuint32
, tint32
, tint32
], False, "", """
1018 unsigned base = src0;
1019 int offset = src1, bits = src2;
1022 } else if (bits < 0 || offset < 0 || offset + bits > 32) {
1023 dst = 0; /* undefined per the spec */
1025 dst = (base >> offset) & ((1ull << bits) - 1);
1028 opcode("ibitfield_extract", 0, tint32
,
1029 [0, 0, 0], [tint32
, tint32
, tint32
], False, "", """
1031 int offset = src1, bits = src2;
1034 } else if (offset < 0 || bits < 0 || offset + bits > 32) {
1037 dst = (base << (32 - offset - bits)) >> offset; /* use sign-extending shift */
1041 # Combines the first component of each input to make a 3-component vector.
1043 triop_horiz("vec3", 3, 1, 1, 1, """
1049 def quadop_horiz(name
, output_size
, src1_size
, src2_size
, src3_size
,
1050 src4_size
, const_expr
):
1051 opcode(name
, output_size
, tuint
,
1052 [src1_size
, src2_size
, src3_size
, src4_size
],
1053 [tuint
, tuint
, tuint
, tuint
],
1054 False, "", const_expr
)
1056 opcode("bitfield_insert", 0, tuint32
, [0, 0, 0, 0],
1057 [tuint32
, tuint32
, tint32
, tint32
], False, "", """
1058 unsigned base = src0, insert = src1;
1059 int offset = src2, bits = src3;
1062 } else if (offset < 0 || bits < 0 || bits + offset > 32) {
1065 unsigned mask = ((1ull << bits) - 1) << offset;
1066 dst = (base & ~mask) | ((insert << offset) & mask);
1070 quadop_horiz("vec4", 4, 1, 1, 1, 1, """
1077 opcode("vec8", 8, tuint
,
1078 [1] * 8, [tuint
] * 8,
1090 opcode("vec16", 16, tuint
,
1091 [1] * 16, [tuint
] * 16,
1111 # An integer multiply instruction for address calculation. This is
1112 # similar to imul, except that the results are undefined in case of
1113 # overflow. Overflow is defined according to the size of the variable
1114 # being dereferenced.
1116 # This relaxed definition, compared to imul, allows an optimization
1117 # pass to propagate bounds (ie, from an load/store intrinsic) to the
1118 # sources, such that lower precision integer multiplies can be used.
1119 # This is useful on hw that has 24b or perhaps 16b integer multiply
1121 binop("amul", tint
, _2src_commutative
+ associative
, "src0 * src1")
1123 # ir3-specific instruction that maps directly to mul-add shift high mix,
1124 # (IMADSH_MIX16 i.e. ah * bl << 16 + c). It is used for lowering integer
1125 # multiplication (imul) on Freedreno backend..
1126 opcode("imadsh_mix16", 0, tint32
,
1127 [0, 0, 0], [tint32
, tint32
, tint32
], False, "", """
1128 dst = ((((src0 & 0xffff0000) >> 16) * (src1 & 0x0000ffff)) << 16) + src2;
1131 # ir3-specific instruction that maps directly to ir3 mad.s24.
1133 # 24b multiply into 32b result (with sign extension) plus 32b int
1134 triop("imad24_ir3", tint32
, _2src_commutative
,
1135 "(((int32_t)src0 << 8) >> 8) * (((int32_t)src1 << 8) >> 8) + src2")
1137 # 24b multiply into 32b result (with sign extension)
1138 binop("imul24", tint32
, _2src_commutative
+ associative
,
1139 "(((int32_t)src0 << 8) >> 8) * (((int32_t)src1 << 8) >> 8)")
1141 # unsigned 24b multiply into 32b result plus 32b int
1142 triop("umad24", tuint32
, _2src_commutative
,
1143 "(((uint32_t)src0 << 8) >> 8) * (((uint32_t)src1 << 8) >> 8) + src2")
1145 # unsigned 24b multiply into 32b result uint
1146 binop("umul24", tint32
, _2src_commutative
+ associative
,
1147 "(((uint32_t)src0 << 8) >> 8) * (((uint32_t)src1 << 8) >> 8)")