dfe45d1b67
Compiling my shader-db with the gallium noop driver is 3.6% faster now. malloc calls from ralloc+linear_alloc are reduced by 34% when compiling Heaven shaders with the gallium noop driver. That's due to a shift of malloc calls from ralloc to linear_alloc. Acked-by: Alyssa Rosenzweig <alyssa@rosenzweig.io> Acked-by: Timothy Arceri <tarceri@itsqueeze.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36539>
82 lines
2.6 KiB
C++
82 lines
2.6 KiB
C++
/*
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* Copyright © 2010 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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/**
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* \file ir_expression_flattening.cpp
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*
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* Takes the leaves of expression trees and makes them dereferences of
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* assignments of the leaves to temporaries, according to a predicate.
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*
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* This is used for breaking down matrix operations, where it's easier to
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* create a temporary and work on each of its vector components individually.
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*/
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#include "ir.h"
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#include "ir_rvalue_visitor.h"
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#include "ir_expression_flattening.h"
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class ir_expression_flattening_visitor : public ir_rvalue_visitor {
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public:
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ir_expression_flattening_visitor(bool (*predicate)(ir_instruction *ir))
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{
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this->predicate = predicate;
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}
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virtual ~ir_expression_flattening_visitor()
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{
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/* empty */
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}
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void handle_rvalue(ir_rvalue **rvalue);
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bool (*predicate)(ir_instruction *ir);
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};
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void
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do_expression_flattening(ir_exec_list *instructions,
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bool (*predicate)(ir_instruction *ir))
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{
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ir_expression_flattening_visitor v(predicate);
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visit_list_elements(&v, instructions);
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}
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void
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ir_expression_flattening_visitor::handle_rvalue(ir_rvalue **rvalue)
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{
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ir_variable *var;
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ir_assignment *assign;
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ir_rvalue *ir = *rvalue;
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if (!ir || !this->predicate(ir))
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return;
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linear_ctx *linalloc = ir->node_linalloc;
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var = new(linalloc) ir_variable(ir->type, "flattening_tmp", ir_var_temporary);
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base_ir->insert_before(var);
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assign = new(linalloc) ir_assignment(new(linalloc) ir_dereference_variable(var), ir);
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base_ir->insert_before(assign);
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*rvalue = new(linalloc) ir_dereference_variable(var);
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}
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