diff options
Diffstat (limited to 'src/panfrost/midgard')
-rw-r--r-- | src/panfrost/midgard/compiler.h | 2 | ||||
-rw-r--r-- | src/panfrost/midgard/meson.build | 1 | ||||
-rw-r--r-- | src/panfrost/midgard/nir_undef_to_zero.c | 87 |
3 files changed, 0 insertions, 90 deletions
diff --git a/src/panfrost/midgard/compiler.h b/src/panfrost/midgard/compiler.h index 5a93eb325bd..74a3532ab3c 100644 --- a/src/panfrost/midgard/compiler.h +++ b/src/panfrost/midgard/compiler.h @@ -659,8 +659,6 @@ void emit_binary_bundle( struct util_dynarray *emission, int next_tag); -bool -nir_undef_to_zero(nir_shader *shader); bool nir_fuse_io_16(nir_shader *shader); bool midgard_nir_lod_errata(nir_shader *shader); diff --git a/src/panfrost/midgard/meson.build b/src/panfrost/midgard/meson.build index 3d78b13d257..80bb0a91388 100644 --- a/src/panfrost/midgard/meson.build +++ b/src/panfrost/midgard/meson.build @@ -38,7 +38,6 @@ libpanfrost_midgard_files = files( 'midgard_opt_dce.c', 'midgard_opt_perspective.c', 'midgard_errata_lod.c', - 'nir_undef_to_zero.c', 'nir_fuse_io_16.c', ) diff --git a/src/panfrost/midgard/nir_undef_to_zero.c b/src/panfrost/midgard/nir_undef_to_zero.c deleted file mode 100644 index ed0bb5402ce..00000000000 --- a/src/panfrost/midgard/nir_undef_to_zero.c +++ /dev/null @@ -1,87 +0,0 @@ -/* - * Copyright (C) 2019 Collabora, Ltd. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS - * IN THE SOFTWARE. - * - * Authors (Collabora): - * Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com> - */ - -/** - * @file - * - * Flushes undefined SSA values to a zero vector fo the appropriate component - * count, to avoid undefined behaviour in the resulting shader. Not required - * for conformance as use of uninitialized variables is explicitly left - * undefined by the spec. Works around buggy apps, however. - * - * Call immediately after nir_opt_undef. If called before, larger optimization - * opportunities from the former pass will be missed. If called outside of an - * optimization loop, constant propagation and algebraic optimizations won't be - * able to kick in to reduce stuff consuming the zero. - */ - -#include "compiler/nir/nir.h" -#include "compiler/nir/nir_builder.h" - -bool nir_undef_to_zero(nir_shader *shader); - -bool -nir_undef_to_zero(nir_shader *shader) -{ - bool progress = false; - - nir_foreach_function(function, shader) { - if (!function->impl) continue; - - nir_builder b; - nir_builder_init(&b, function->impl); - - nir_foreach_block(block, function->impl) { - nir_foreach_instr_safe(instr, block) { - if (instr->type != nir_instr_type_ssa_undef) continue; - - nir_ssa_undef_instr *und = nir_instr_as_ssa_undef(instr); - - /* Get the required size */ - unsigned c = und->def.num_components; - unsigned s = und->def.bit_size; - - nir_const_value v[NIR_MAX_VEC_COMPONENTS]; - memset(v, 0, sizeof(v)); - - b.cursor = nir_before_instr(instr); - nir_ssa_def *zero = nir_build_imm(&b, c, s, v); - nir_src zerosrc = nir_src_for_ssa(zero); - - nir_ssa_def_rewrite_uses(&und->def, zerosrc); - - progress |= true; - } - } - - nir_metadata_preserve(function->impl, nir_metadata_block_index | nir_metadata_dominance); - - } - - return progress; -} - - |