diff options
Diffstat (limited to 'src/compiler')
| -rw-r--r-- | src/compiler/Makefile.sources | 1 | ||||
| -rw-r--r-- | src/compiler/nir/nir.h | 2 | ||||
| -rw-r--r-- | src/compiler/nir/nir_opt_intrinsics.c | 95 |
3 files changed, 98 insertions, 0 deletions
diff --git a/src/compiler/Makefile.sources b/src/compiler/Makefile.sources index 785782b54d1..c3a5454e06b 100644 --- a/src/compiler/Makefile.sources +++ b/src/compiler/Makefile.sources @@ -254,6 +254,7 @@ NIR_FILES = \ nir/nir_opt_gcm.c \ nir/nir_opt_global_to_local.c \ nir/nir_opt_if.c \ + nir/nir_opt_intrinsics.c \ nir/nir_opt_loop_unroll.c \ nir/nir_opt_move_comparisons.c \ nir/nir_opt_peephole_select.c \ diff --git a/src/compiler/nir/nir.h b/src/compiler/nir/nir.h index c41b0dc9313..44a1d0887e3 100644 --- a/src/compiler/nir/nir.h +++ b/src/compiler/nir/nir.h @@ -2644,6 +2644,8 @@ bool nir_opt_gcm(nir_shader *shader, bool value_number); bool nir_opt_if(nir_shader *shader); +bool nir_opt_intrinsics(nir_shader *shader); + bool nir_opt_loop_unroll(nir_shader *shader, nir_variable_mode indirect_mask); bool nir_opt_move_comparisons(nir_shader *shader); diff --git a/src/compiler/nir/nir_opt_intrinsics.c b/src/compiler/nir/nir_opt_intrinsics.c new file mode 100644 index 00000000000..9055c98dd33 --- /dev/null +++ b/src/compiler/nir/nir_opt_intrinsics.c @@ -0,0 +1,95 @@ +/* + * Copyright © 2017 Intel Corporation + * + * 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. + */ + +#include "nir.h" +#include "nir_builder.h" + +/** + * \file nir_opt_intrinsics.c + */ + +static bool +opt_intrinsics_impl(nir_function_impl *impl) +{ + nir_builder b; + nir_builder_init(&b, impl); + bool progress = false; + + nir_foreach_block(block, impl) { + nir_foreach_instr_safe(instr, block) { + if (instr->type != nir_instr_type_intrinsic) + continue; + + nir_intrinsic_instr *intrin = nir_instr_as_intrinsic(instr); + nir_ssa_def *replacement = NULL; + b.cursor = nir_before_instr(instr); + + switch (intrin->intrinsic) { + case nir_intrinsic_vote_any: + case nir_intrinsic_vote_all: { + nir_const_value *val = nir_src_as_const_value(intrin->src[0]); + if (!val) + continue; + + replacement = nir_ssa_for_src(&b, intrin->src[0], 1); + break; + } + case nir_intrinsic_vote_eq: { + nir_const_value *val = nir_src_as_const_value(intrin->src[0]); + if (!val) + continue; + + replacement = nir_imm_int(&b, NIR_TRUE); + break; + } + default: + break; + } + + if (!replacement) + continue; + + nir_ssa_def_rewrite_uses(&intrin->dest.ssa, + nir_src_for_ssa(replacement)); + nir_instr_remove(instr); + nir_metadata_preserve(impl, nir_metadata_block_index | + nir_metadata_dominance); + progress = true; + } + } + + return progress; +} + +bool +nir_opt_intrinsics(nir_shader *shader) +{ + bool progress = false; + + nir_foreach_function(function, shader) { + if (function->impl) + progress |= opt_intrinsics_impl(function->impl); + } + + return false; +} |