ir_optimization.h revision e31266ed3e3667c043bc5ad1abd65cfdb0fa7fdb 
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
39bool do_common_optimization(exec_list *ir, bool linked, unsigned max_unroll_iterations);
40
41bool do_algebraic(exec_list *instructions);
42bool do_constant_folding(exec_list *instructions);
43bool do_constant_variable(exec_list *instructions);
44bool do_constant_variable_unlinked(exec_list *instructions);
45bool do_copy_propagation(exec_list *instructions);
46bool do_copy_propagation_elements(exec_list *instructions);
47bool do_constant_propagation(exec_list *instructions);
48bool do_dead_code(exec_list *instructions);
49bool do_dead_code_local(exec_list *instructions);
50bool do_dead_code_unlinked(exec_list *instructions);
51bool do_dead_functions(exec_list *instructions);
52bool do_function_inlining(exec_list *instructions);
53bool 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);
54bool do_lower_texture_projection(exec_list *instructions);
55bool do_if_simplification(exec_list *instructions);
56bool do_discard_simplification(exec_list *instructions);
57bool lower_if_to_cond_assign(exec_list *instructions, unsigned max_depth = 0);
58bool do_mat_op_to_vec(exec_list *instructions);
59bool do_mod_to_fract(exec_list *instructions);
60bool do_noop_swizzle(exec_list *instructions);
61bool do_structure_splitting(exec_list *instructions);
62bool do_sub_to_add_neg(exec_list *instructions);
63bool do_swizzle_swizzle(exec_list *instructions);
64bool do_tree_grafting(exec_list *instructions);
65bool do_vec_index_to_cond_assign(exec_list *instructions);
66bool do_vec_index_to_swizzle(exec_list *instructions);
67bool lower_discard(exec_list *instructions);
68bool lower_instructions(exec_list *instructions, unsigned what_to_lower);
69bool lower_noise(exec_list *instructions);
70bool lower_variable_index_to_cond_assign(exec_list *instructions,
71    bool lower_input, bool lower_output, bool lower_temp, bool lower_uniform);
72bool lower_quadop_vector(exec_list *instructions, bool dont_lower_swz);
73bool optimize_redundant_jumps(exec_list *instructions);
74