1 /* 2 * Copyright 2010 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 21 * DEALINGS IN THE SOFTWARE. 22 */ 23 24 25 /** 26 * \file ir_optimization.h 27 * 28 * Prototypes for optimization passes to be called by the compiler and drivers. 29 */ 30 31 /* Operations for lower_instructions() */ 32 #define SUB_TO_ADD_NEG 0x01 33 #define DIV_TO_MUL_RCP 0x02 34 #define EXP_TO_EXP2 0x04 35 #define POW_TO_EXP2 0x08 36 #define LOG_TO_LOG2 0x10 37 #define MOD_TO_FRACT 0x20 38 #define INT_DIV_TO_MUL_RCP 0x40 39 40 bool do_common_optimization(exec_list *ir, bool linked, 41 bool uniform_locations_assigned, 42 unsigned max_unroll_iterations); 43 44 bool do_algebraic(exec_list *instructions); 45 bool do_constant_folding(exec_list *instructions); 46 bool do_constant_variable(exec_list *instructions); 47 bool do_constant_variable_unlinked(exec_list *instructions); 48 bool do_copy_propagation(exec_list *instructions); 49 bool do_copy_propagation_elements(exec_list *instructions); 50 bool do_constant_propagation(exec_list *instructions); 51 bool do_dead_code(exec_list *instructions, bool uniform_locations_assigned); 52 bool do_dead_code_local(exec_list *instructions); 53 bool do_dead_code_unlinked(exec_list *instructions); 54 bool do_dead_functions(exec_list *instructions); 55 bool do_function_inlining(exec_list *instructions); 56 bool do_lower_jumps(exec_list *instructions, bool pull_out_jumps = true, bool lower_sub_return = true, bool lower_main_return = false, bool lower_continue = false, bool lower_break = false); 57 bool do_lower_texture_projection(exec_list *instructions); 58 bool do_if_simplification(exec_list *instructions); 59 bool do_discard_simplification(exec_list *instructions); 60 bool lower_if_to_cond_assign(exec_list *instructions, unsigned max_depth = 0); 61 bool do_mat_op_to_vec(exec_list *instructions); 62 bool do_noop_swizzle(exec_list *instructions); 63 bool do_structure_splitting(exec_list *instructions); 64 bool do_swizzle_swizzle(exec_list *instructions); 65 bool do_tree_grafting(exec_list *instructions); 66 bool do_vec_index_to_cond_assign(exec_list *instructions); 67 bool do_vec_index_to_swizzle(exec_list *instructions); 68 bool lower_discard(exec_list *instructions); 69 void lower_discard_flow(exec_list *instructions); 70 bool lower_instructions(exec_list *instructions, unsigned what_to_lower); 71 bool lower_noise(exec_list *instructions); 72 bool lower_variable_index_to_cond_assign(exec_list *instructions, 73 bool lower_input, bool lower_output, bool lower_temp, bool lower_uniform); 74 bool lower_quadop_vector(exec_list *instructions, bool dont_lower_swz); 75 bool lower_clip_distance(exec_list *instructions); 76 void lower_output_reads(exec_list *instructions); 77 void lower_ubo_reference(struct gl_shader *shader, exec_list *instructions); 78 bool optimize_redundant_jumps(exec_list *instructions); 79 bool optimize_split_arrays(exec_list *instructions, bool linked); 80 81 ir_rvalue * 82 compare_index_block(exec_list *instructions, ir_variable *index, 83 unsigned base, unsigned components, void *mem_ctx); 84
