1/*
2 * Copyright (C) 2015 Rob Clark <robclark@freedesktop.org>
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 FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 * SOFTWARE.
22 *
23 * Authors:
24 *    Rob Clark <robclark@freedesktop.org>
25 */
26
27#ifndef IR3_NIR_H_
28#define IR3_NIR_H_
29
30#include "compiler/nir/nir.h"
31#include "compiler/nir/nir_builder.h"
32#include "compiler/shader_enums.h"
33
34#include "ir3_shader.h"
35
36bool ir3_nir_apply_trig_workarounds(nir_shader *shader);
37bool ir3_nir_lower_imul(nir_shader *shader);
38bool ir3_nir_lower_tg4_to_tex(nir_shader *shader);
39bool ir3_nir_lower_io_offsets(nir_shader *shader);
40bool ir3_nir_lower_load_barycentric_at_sample(nir_shader *shader);
41bool ir3_nir_lower_load_barycentric_at_offset(nir_shader *shader);
42bool ir3_nir_move_varying_inputs(nir_shader *shader);
43int ir3_nir_coord_offset(nir_ssa_def *ssa);
44bool ir3_nir_lower_tex_prefetch(nir_shader *shader);
45
46void ir3_nir_lower_to_explicit_output(nir_shader *shader,
47                                      struct ir3_shader_variant *v,
48                                      unsigned topology);
49void ir3_nir_lower_to_explicit_input(nir_shader *shader,
50                                     struct ir3_shader_variant *v);
51void ir3_nir_lower_tess_ctrl(nir_shader *shader, struct ir3_shader_variant *v,
52                             unsigned topology);
53void ir3_nir_lower_tess_eval(nir_shader *shader, struct ir3_shader_variant *v,
54                             unsigned topology);
55void ir3_nir_lower_gs(nir_shader *shader);
56
57const nir_shader_compiler_options *
58ir3_get_compiler_options(struct ir3_compiler *compiler);
59void ir3_optimize_loop(struct ir3_compiler *compiler, nir_shader *s);
60void ir3_nir_lower_io_to_temporaries(nir_shader *s);
61void ir3_finalize_nir(struct ir3_compiler *compiler, nir_shader *s);
62void ir3_nir_post_finalize(struct ir3_compiler *compiler, nir_shader *s);
63void ir3_nir_lower_variant(struct ir3_shader_variant *so, nir_shader *s);
64
65void ir3_setup_const_state(nir_shader *nir, struct ir3_shader_variant *v,
66                           struct ir3_const_state *const_state);
67bool ir3_nir_lower_load_constant(nir_shader *nir, struct ir3_shader_variant *v);
68void ir3_nir_analyze_ubo_ranges(nir_shader *nir, struct ir3_shader_variant *v);
69bool ir3_nir_lower_ubo_loads(nir_shader *nir, struct ir3_shader_variant *v);
70bool ir3_nir_fixup_load_uniform(nir_shader *nir);
71
72nir_ssa_def *ir3_nir_try_propagate_bit_shift(nir_builder *b,
73                                             nir_ssa_def *offset,
74                                             int32_t shift);
75
76static inline nir_intrinsic_instr *
77ir3_bindless_resource(nir_src src)
78{
79   if (!src.is_ssa)
80      return NULL;
81
82   if (src.ssa->parent_instr->type != nir_instr_type_intrinsic)
83      return NULL;
84
85   nir_intrinsic_instr *intrin = nir_instr_as_intrinsic(src.ssa->parent_instr);
86   if (intrin->intrinsic != nir_intrinsic_bindless_resource_ir3)
87      return NULL;
88
89   return intrin;
90}
91
92#endif /* IR3_NIR_H_ */
93