1 /*
2 * Copyright © 2015 Intel Corporation
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
24 #include "anv_nir.h"
25
26 void
anv_nir_lower_push_constants(nir_shader * shader)27 anv_nir_lower_push_constants(nir_shader *shader)
28 {
29 nir_foreach_function(function, shader) {
30 if (!function->impl)
31 continue;
32
33 nir_foreach_block(block, function->impl) {
34 nir_foreach_instr(instr, block) {
35 if (instr->type != nir_instr_type_intrinsic)
36 continue;
37
38 nir_intrinsic_instr *intrin = nir_instr_as_intrinsic(instr);
39
40 /* TODO: Handle indirect push constants */
41 if (intrin->intrinsic != nir_intrinsic_load_push_constant)
42 continue;
43
44 assert(intrin->const_index[0] % 4 == 0);
45
46 /* We just turn them into uniform loads */
47 intrin->intrinsic = nir_intrinsic_load_uniform;
48 }
49 }
50 }
51 }
52