From: Rob Clark Date: Fri, 25 Mar 2016 17:52:26 +0000 (-0400) Subject: nir: rename lower_outputs_to_temporaries -> lower_io_to_temporaries X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=b085016f94721a6c18f7076fc37c450a98e6bdbc;p=mesa.git nir: rename lower_outputs_to_temporaries -> lower_io_to_temporaries Since it will gain support to lower inputs, give it a more generic name. Signed-off-by: Rob Clark --- diff --git a/src/compiler/Makefile.sources b/src/compiler/Makefile.sources index fabab777ada..66fbd84c0b1 100644 --- a/src/compiler/Makefile.sources +++ b/src/compiler/Makefile.sources @@ -199,8 +199,8 @@ NIR_FILES = \ nir/nir_lower_idiv.c \ nir/nir_lower_indirect_derefs.c \ nir/nir_lower_io.c \ + nir/nir_lower_io_to_temporaries.c \ nir/nir_lower_io_types.c \ - nir/nir_lower_outputs_to_temporaries.c \ nir/nir_lower_passthrough_edgeflags.c \ nir/nir_lower_phis_to_scalar.c \ nir/nir_lower_returns.c \ diff --git a/src/compiler/nir/nir.h b/src/compiler/nir/nir.h index 68f948e83a5..5410f0b8020 100644 --- a/src/compiler/nir/nir.h +++ b/src/compiler/nir/nir.h @@ -2279,8 +2279,8 @@ bool nir_lower_indirect_derefs(nir_shader *shader, nir_variable_mode modes); bool nir_lower_locals_to_regs(nir_shader *shader); -void nir_lower_outputs_to_temporaries(nir_shader *shader, - nir_function *entrypoint); +void nir_lower_io_to_temporaries(nir_shader *shader, nir_function *entrypoint); + void nir_shader_gather_info(nir_shader *shader, nir_function_impl *entrypoint); void nir_assign_var_locations(struct exec_list *var_list, diff --git a/src/compiler/nir/nir_lower_io_to_temporaries.c b/src/compiler/nir/nir_lower_io_to_temporaries.c new file mode 100644 index 00000000000..bf16aecfcf1 --- /dev/null +++ b/src/compiler/nir/nir_lower_io_to_temporaries.c @@ -0,0 +1,128 @@ +/* + * Copyright © 2015 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. + */ + +/* + * Implements a pass that lowers output variables to a temporary plus an + * output variable with a single copy at each exit point of the shader. + * This way the output variable is only ever written. + */ + +#include "nir.h" + +struct lower_io_state { + nir_shader *shader; + struct exec_list old_outputs; +}; + +static void +emit_output_copies(nir_cursor cursor, struct lower_io_state *state) +{ + assert(exec_list_length(&state->shader->outputs) == + exec_list_length(&state->old_outputs)); + + foreach_two_lists(out_node, &state->shader->outputs, + temp_node, &state->old_outputs) { + nir_variable *output = exec_node_data(nir_variable, out_node, node); + nir_variable *temp = exec_node_data(nir_variable, temp_node, node); + + nir_intrinsic_instr *copy = + nir_intrinsic_instr_create(state->shader, nir_intrinsic_copy_var); + copy->variables[0] = nir_deref_var_create(copy, output); + copy->variables[1] = nir_deref_var_create(copy, temp); + + nir_instr_insert(cursor, ©->instr); + } +} + +void +nir_lower_io_to_temporaries(nir_shader *shader, nir_function *entrypoint) +{ + struct lower_io_state state; + + if (shader->stage == MESA_SHADER_TESS_CTRL) + return; + + state.shader = shader; + exec_list_move_nodes_to(&shader->outputs, &state.old_outputs); + + /* Walk over all of the outputs turn each output into a temporary and + * make a new variable for the actual output. + */ + nir_foreach_variable(var, &state.old_outputs) { + nir_variable *output = ralloc(shader, nir_variable); + memcpy(output, var, sizeof *output); + + /* The orignal is now the temporary */ + nir_variable *temp = var; + + /* Reparent the name to the new variable */ + ralloc_steal(output, output->name); + + /* Reparent the constant initializer (if any) */ + ralloc_steal(output, output->constant_initializer); + + /* Give the output a new name with @out-temp appended */ + temp->name = ralloc_asprintf(var, "%s@out-temp", output->name); + temp->data.mode = nir_var_global; + temp->constant_initializer = NULL; + + exec_list_push_tail(&shader->outputs, &output->node); + } + + nir_foreach_function(function, shader) { + if (function->impl == NULL) + continue; + + if (shader->stage == MESA_SHADER_GEOMETRY) { + /* For geometry shaders, we have to emit the output copies right + * before each EmitVertex call. + */ + nir_foreach_block(block, function->impl) { + nir_foreach_instr(instr, block) { + if (instr->type != nir_instr_type_intrinsic) + continue; + + nir_intrinsic_instr *intrin = nir_instr_as_intrinsic(instr); + if (intrin->intrinsic == nir_intrinsic_emit_vertex) { + emit_output_copies(nir_before_instr(&intrin->instr), + &state); + } + } + } + } else if (function == entrypoint) { + /* For all other shader types, we need to do the copies right before + * the jumps to the end block. + */ + struct set_entry *block_entry; + set_foreach(function->impl->end_block->predecessors, block_entry) { + struct nir_block *block = (void *)block_entry->key; + emit_output_copies(nir_after_block_before_jump(block), &state); + } + } + + nir_metadata_preserve(function->impl, nir_metadata_block_index | + nir_metadata_dominance); + } + + exec_list_append(&shader->globals, &state.old_outputs); +} diff --git a/src/compiler/nir/nir_lower_outputs_to_temporaries.c b/src/compiler/nir/nir_lower_outputs_to_temporaries.c deleted file mode 100644 index 0dfb7b0e718..00000000000 --- a/src/compiler/nir/nir_lower_outputs_to_temporaries.c +++ /dev/null @@ -1,128 +0,0 @@ -/* - * Copyright © 2015 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. - */ - -/* - * Implements a pass that lowers output variables to a temporary plus an - * output variable with a single copy at each exit point of the shader. - * This way the output variable is only ever written. - */ - -#include "nir.h" - -struct lower_outputs_state { - nir_shader *shader; - struct exec_list old_outputs; -}; - -static void -emit_output_copies(nir_cursor cursor, struct lower_outputs_state *state) -{ - assert(exec_list_length(&state->shader->outputs) == - exec_list_length(&state->old_outputs)); - - foreach_two_lists(out_node, &state->shader->outputs, - temp_node, &state->old_outputs) { - nir_variable *output = exec_node_data(nir_variable, out_node, node); - nir_variable *temp = exec_node_data(nir_variable, temp_node, node); - - nir_intrinsic_instr *copy = - nir_intrinsic_instr_create(state->shader, nir_intrinsic_copy_var); - copy->variables[0] = nir_deref_var_create(copy, output); - copy->variables[1] = nir_deref_var_create(copy, temp); - - nir_instr_insert(cursor, ©->instr); - } -} - -void -nir_lower_outputs_to_temporaries(nir_shader *shader, nir_function *entrypoint) -{ - struct lower_outputs_state state; - - if (shader->stage == MESA_SHADER_TESS_CTRL) - return; - - state.shader = shader; - exec_list_move_nodes_to(&shader->outputs, &state.old_outputs); - - /* Walk over all of the outputs turn each output into a temporary and - * make a new variable for the actual output. - */ - nir_foreach_variable(var, &state.old_outputs) { - nir_variable *output = ralloc(shader, nir_variable); - memcpy(output, var, sizeof *output); - - /* The orignal is now the temporary */ - nir_variable *temp = var; - - /* Reparent the name to the new variable */ - ralloc_steal(output, output->name); - - /* Reparent the constant initializer (if any) */ - ralloc_steal(output, output->constant_initializer); - - /* Give the output a new name with @out-temp appended */ - temp->name = ralloc_asprintf(var, "%s@out-temp", output->name); - temp->data.mode = nir_var_global; - temp->constant_initializer = NULL; - - exec_list_push_tail(&shader->outputs, &output->node); - } - - nir_foreach_function(function, shader) { - if (function->impl == NULL) - continue; - - if (shader->stage == MESA_SHADER_GEOMETRY) { - /* For geometry shaders, we have to emit the output copies right - * before each EmitVertex call. - */ - nir_foreach_block(block, function->impl) { - nir_foreach_instr(instr, block) { - if (instr->type != nir_instr_type_intrinsic) - continue; - - nir_intrinsic_instr *intrin = nir_instr_as_intrinsic(instr); - if (intrin->intrinsic == nir_intrinsic_emit_vertex) { - emit_output_copies(nir_before_instr(&intrin->instr), - &state); - } - } - } - } else if (function == entrypoint) { - /* For all other shader types, we need to do the copies right before - * the jumps to the end block. - */ - struct set_entry *block_entry; - set_foreach(function->impl->end_block->predecessors, block_entry) { - struct nir_block *block = (void *)block_entry->key; - emit_output_copies(nir_after_block_before_jump(block), &state); - } - } - - nir_metadata_preserve(function->impl, nir_metadata_block_index | - nir_metadata_dominance); - } - - exec_list_append(&shader->globals, &state.old_outputs); -} diff --git a/src/mesa/drivers/dri/i965/brw_nir.c b/src/mesa/drivers/dri/i965/brw_nir.c index fb658ec85df..07d24b27442 100644 --- a/src/mesa/drivers/dri/i965/brw_nir.c +++ b/src/mesa/drivers/dri/i965/brw_nir.c @@ -563,7 +563,7 @@ brw_create_nir(struct brw_context *brw, /* First, lower the GLSL IR or Mesa IR to NIR */ if (shader_prog) { nir = glsl_to_nir(shader_prog, stage, options); - OPT_V(nir_lower_outputs_to_temporaries, nir_shader_get_entrypoint(nir)); + OPT_V(nir_lower_io_to_temporaries, nir_shader_get_entrypoint(nir)); } else { nir = prog_to_nir(prog, options); OPT_V(nir_convert_to_ssa); /* turn registers into SSA */