2 * Copyright © 2015 Intel Corporation
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
26 struct lower_push_constants_state
{
32 lower_push_constants_block(nir_block
*block
, void *void_state
)
34 struct lower_push_constants_state
*state
= void_state
;
36 nir_foreach_instr(block
, instr
) {
37 if (instr
->type
!= nir_instr_type_intrinsic
)
40 nir_intrinsic_instr
*intrin
= nir_instr_as_intrinsic(instr
);
42 /* TODO: Handle indirect push constants */
43 if (intrin
->intrinsic
!= nir_intrinsic_load_push_constant
)
46 /* This wont work for vec4 stages. */
47 assert(state
->is_scalar
);
49 assert(intrin
->const_index
[0] % 4 == 0);
50 assert(intrin
->const_index
[1] == 128);
52 /* We just turn them into uniform loads with the appropreate offset */
53 intrin
->intrinsic
= nir_intrinsic_load_uniform
;
60 anv_nir_lower_push_constants(nir_shader
*shader
, bool is_scalar
)
62 struct lower_push_constants_state state
= {
64 .is_scalar
= is_scalar
,
67 nir_foreach_function(shader
, function
) {
69 nir_foreach_block(function
->impl
, lower_push_constants_block
, &state
);
72 assert(shader
->num_uniforms
% 4 == 0);
74 shader
->num_uniforms
/= 4;
76 shader
->num_uniforms
= DIV_ROUND_UP(shader
->num_uniforms
, 16);