src/intel/vulkan/anv_nir_lower_push_constants.c

   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
  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             /* We just turn them into uniform loads */
  45             intrin->intrinsic = nir_intrinsic_load_uniform;
  46          }
  47       }
  48    }
  49 }