258 lines
7.6 KiB
C
258 lines
7.6 KiB
C
/*
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* Copyright © 2018 Red Hat Inc.
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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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#ifndef NIR_BUILTIN_BUILDER_H
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#define NIR_BUILTIN_BUILDER_H
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#include "util/u_math.h"
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#include "nir_builder.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* Functions are sorted alphabetically with removed type and "fast" prefix.
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* Definitions for functions in the C file come first.
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*/
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nir_ssa_def* nir_cross3(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y);
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nir_ssa_def* nir_cross4(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y);
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nir_ssa_def* nir_fast_length(nir_builder *b, nir_ssa_def *vec);
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nir_ssa_def* nir_nextafter(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y);
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nir_ssa_def* nir_normalize(nir_builder *b, nir_ssa_def *vec);
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nir_ssa_def* nir_smoothstep(nir_builder *b, nir_ssa_def *edge0,
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nir_ssa_def *edge1, nir_ssa_def *x);
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nir_ssa_def* nir_upsample(nir_builder *b, nir_ssa_def *hi, nir_ssa_def *lo);
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nir_ssa_def* nir_atan(nir_builder *b, nir_ssa_def *y_over_x);
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nir_ssa_def* nir_atan2(nir_builder *b, nir_ssa_def *y, nir_ssa_def *x);
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nir_ssa_def *
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nir_get_texture_lod(nir_builder *b, nir_tex_instr *tex);
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nir_ssa_def *
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nir_get_texture_size(nir_builder *b, nir_tex_instr *tex);
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static inline nir_ssa_def *
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nir_nan_check2(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y, nir_ssa_def *res)
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{
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return nir_bcsel(b, nir_fneu(b, x, x), x, nir_bcsel(b, nir_fneu(b, y, y), y, res));
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}
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static inline nir_ssa_def *
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nir_fmax_abs_vec_comp(nir_builder *b, nir_ssa_def *vec)
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{
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nir_ssa_def *res = nir_channel(b, vec, 0);
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for (unsigned i = 1; i < vec->num_components; ++i)
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res = nir_fmax(b, res, nir_fabs(b, nir_channel(b, vec, i)));
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return res;
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}
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static inline nir_ssa_def *
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nir_iabs_diff(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y)
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{
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nir_ssa_def *cond = nir_ige(b, x, y);
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nir_ssa_def *res0 = nir_isub(b, x, y);
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nir_ssa_def *res1 = nir_isub(b, y, x);
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return nir_bcsel(b, cond, res0, res1);
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}
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static inline nir_ssa_def *
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nir_uabs_diff(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y)
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{
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nir_ssa_def *cond = nir_uge(b, x, y);
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nir_ssa_def *res0 = nir_isub(b, x, y);
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nir_ssa_def *res1 = nir_isub(b, y, x);
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return nir_bcsel(b, cond, res0, res1);
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}
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static inline nir_ssa_def *
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nir_fexp(nir_builder *b, nir_ssa_def *x)
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{
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return nir_fexp2(b, nir_fmul_imm(b, x, M_LOG2E));
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}
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static inline nir_ssa_def *
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nir_flog(nir_builder *b, nir_ssa_def *x)
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{
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return nir_fmul_imm(b, nir_flog2(b, x), 1.0 / M_LOG2E);
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}
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static inline nir_ssa_def *
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nir_imad24(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y, nir_ssa_def *z)
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{
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nir_ssa_def *temp = nir_imul24(b, x, y);
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return nir_iadd(b, temp, z);
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}
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static inline nir_ssa_def *
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nir_imad_hi(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y, nir_ssa_def *z)
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{
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nir_ssa_def *temp = nir_imul_high(b, x, y);
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return nir_iadd(b, temp, z);
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}
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static inline nir_ssa_def *
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nir_umad_hi(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y, nir_ssa_def *z)
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{
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nir_ssa_def *temp = nir_umul_high(b, x, y);
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return nir_iadd(b, temp, z);
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}
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static inline nir_ssa_def *
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nir_bitselect(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y, nir_ssa_def *s)
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{
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return nir_ior(b, nir_iand(b, nir_inot(b, s), x), nir_iand(b, s, y));
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}
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static inline nir_ssa_def *
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nir_copysign(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y)
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{
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uint64_t masks = 1ull << (x->bit_size - 1);
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uint64_t maskv = ~masks;
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nir_ssa_def *s = nir_imm_intN_t(b, masks, x->bit_size);
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nir_ssa_def *v = nir_imm_intN_t(b, maskv, x->bit_size);
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return nir_ior(b, nir_iand(b, x, v), nir_iand(b, y, s));
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}
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static inline nir_ssa_def *
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nir_degrees(nir_builder *b, nir_ssa_def *val)
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{
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return nir_fmul_imm(b, val, 180.0 / M_PI);
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}
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static inline nir_ssa_def *
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nir_fdim(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y)
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{
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nir_ssa_def *cond = nir_flt(b, y, x);
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nir_ssa_def *res = nir_fsub(b, x, y);
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nir_ssa_def *zero = nir_imm_floatN_t(b, 0.0, x->bit_size);
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// return NaN if either x or y are NaN, else x-y if x>y, else +0.0
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return nir_nan_check2(b, x, y, nir_bcsel(b, cond, res, zero));
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}
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static inline nir_ssa_def *
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nir_fast_distance(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y)
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{
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return nir_fast_length(b, nir_fsub(b, x, y));
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}
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static inline nir_ssa_def*
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nir_fast_normalize(nir_builder *b, nir_ssa_def *vec)
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{
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return nir_fdiv(b, vec, nir_fast_length(b, vec));
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}
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static inline nir_ssa_def*
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nir_fmad(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y, nir_ssa_def *z)
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{
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return nir_fadd(b, nir_fmul(b, x, y), z);
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}
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static inline nir_ssa_def*
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nir_maxmag(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y)
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{
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nir_ssa_def *xabs = nir_fabs(b, x);
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nir_ssa_def *yabs = nir_fabs(b, y);
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nir_ssa_def *condy = nir_flt(b, xabs, yabs);
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nir_ssa_def *condx = nir_flt(b, yabs, xabs);
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return nir_bcsel(b, condy, y, nir_bcsel(b, condx, x, nir_fmax(b, x, y)));
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}
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static inline nir_ssa_def*
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nir_minmag(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y)
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{
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nir_ssa_def *xabs = nir_fabs(b, x);
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nir_ssa_def *yabs = nir_fabs(b, y);
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nir_ssa_def *condx = nir_flt(b, xabs, yabs);
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nir_ssa_def *condy = nir_flt(b, yabs, xabs);
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return nir_bcsel(b, condy, y, nir_bcsel(b, condx, x, nir_fmin(b, x, y)));
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}
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static inline nir_ssa_def*
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nir_nan(nir_builder *b, nir_ssa_def *x)
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{
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nir_ssa_def *nan = nir_imm_floatN_t(b, NAN, x->bit_size);
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if (x->num_components == 1)
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return nan;
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nir_ssa_def *nans[NIR_MAX_VEC_COMPONENTS];
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for (unsigned i = 0; i < x->num_components; ++i)
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nans[i] = nan;
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return nir_vec(b, nans, x->num_components);
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}
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static inline nir_ssa_def *
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nir_radians(nir_builder *b, nir_ssa_def *val)
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{
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return nir_fmul_imm(b, val, M_PI / 180.0);
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}
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static inline nir_ssa_def *
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nir_select(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y, nir_ssa_def *s)
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{
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if (s->num_components != 1) {
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uint64_t mask = 1ull << (s->bit_size - 1);
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s = nir_iand(b, s, nir_imm_intN_t(b, mask, s->bit_size));
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}
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return nir_bcsel(b, nir_ieq_imm(b, s, 0), x, y);
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}
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static inline nir_ssa_def *
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nir_ftan(nir_builder *b, nir_ssa_def *x)
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{
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return nir_fdiv(b, nir_fsin(b, x), nir_fcos(b, x));
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}
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static inline nir_ssa_def *
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nir_clz_u(nir_builder *b, nir_ssa_def *a)
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{
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nir_ssa_def *val;
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val = nir_isub(b, nir_imm_intN_t(b, a->bit_size - 1, 32), nir_ufind_msb(b, a));
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return nir_u2u(b, val, a->bit_size);
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}
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static inline nir_ssa_def *
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nir_ctz_u(nir_builder *b, nir_ssa_def *a)
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{
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nir_ssa_def *cond = nir_ieq(b, a, nir_imm_intN_t(b, 0, a->bit_size));
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return nir_bcsel(b, cond,
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nir_imm_intN_t(b, a->bit_size, a->bit_size),
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nir_u2u(b, nir_find_lsb(b, a), a->bit_size));
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}
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#ifdef __cplusplus
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}
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#endif
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#endif /* NIR_BUILTIN_BUILDER_H */
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