| /* |
| * Copyright © 2010 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. |
| */ |
| |
| |
| /** |
| * \file ir_optimization.h |
| * |
| * Prototypes for optimization passes to be called by the compiler and drivers. |
| */ |
| |
| /* Operations for lower_instructions() */ |
| #define SUB_TO_ADD_NEG 0x01 |
| #define FDIV_TO_MUL_RCP 0x02 |
| #define EXP_TO_EXP2 0x04 |
| #define POW_TO_EXP2 0x08 |
| #define LOG_TO_LOG2 0x10 |
| #define MOD_TO_FLOOR 0x20 |
| #define INT_DIV_TO_MUL_RCP 0x40 |
| #define LDEXP_TO_ARITH 0x80 |
| #define CARRY_TO_ARITH 0x100 |
| #define BORROW_TO_ARITH 0x200 |
| #define SAT_TO_CLAMP 0x400 |
| #define DOPS_TO_DFRAC 0x800 |
| #define DFREXP_DLDEXP_TO_ARITH 0x1000 |
| #define BIT_COUNT_TO_MATH 0x02000 |
| #define EXTRACT_TO_SHIFTS 0x04000 |
| #define INSERT_TO_SHIFTS 0x08000 |
| #define REVERSE_TO_SHIFTS 0x10000 |
| #define FIND_LSB_TO_FLOAT_CAST 0x20000 |
| #define FIND_MSB_TO_FLOAT_CAST 0x40000 |
| #define IMUL_HIGH_TO_MUL 0x80000 |
| #define DDIV_TO_MUL_RCP 0x100000 |
| #define DIV_TO_MUL_RCP (FDIV_TO_MUL_RCP | DDIV_TO_MUL_RCP) |
| |
| /** |
| * \see class lower_packing_builtins_visitor |
| */ |
| enum lower_packing_builtins_op { |
| LOWER_PACK_UNPACK_NONE = 0x0000, |
| |
| LOWER_PACK_SNORM_2x16 = 0x0001, |
| LOWER_UNPACK_SNORM_2x16 = 0x0002, |
| |
| LOWER_PACK_UNORM_2x16 = 0x0004, |
| LOWER_UNPACK_UNORM_2x16 = 0x0008, |
| |
| LOWER_PACK_HALF_2x16 = 0x0010, |
| LOWER_UNPACK_HALF_2x16 = 0x0020, |
| |
| LOWER_PACK_SNORM_4x8 = 0x0040, |
| LOWER_UNPACK_SNORM_4x8 = 0x0080, |
| |
| LOWER_PACK_UNORM_4x8 = 0x0100, |
| LOWER_UNPACK_UNORM_4x8 = 0x0200, |
| |
| LOWER_PACK_USE_BFI = 0x0400, |
| LOWER_PACK_USE_BFE = 0x0800, |
| }; |
| |
| bool do_common_optimization(exec_list *ir, bool linked, |
| bool uniform_locations_assigned, |
| const struct gl_shader_compiler_options *options, |
| bool native_integers); |
| |
| bool ir_constant_fold(ir_rvalue **rvalue); |
| |
| bool do_rebalance_tree(exec_list *instructions); |
| bool do_algebraic(exec_list *instructions, bool native_integers, |
| const struct gl_shader_compiler_options *options); |
| bool opt_conditional_discard(exec_list *instructions); |
| bool do_constant_folding(exec_list *instructions); |
| bool do_constant_variable(exec_list *instructions); |
| bool do_constant_variable_unlinked(exec_list *instructions); |
| bool do_copy_propagation(exec_list *instructions); |
| bool do_copy_propagation_elements(exec_list *instructions); |
| bool do_constant_propagation(exec_list *instructions); |
| void do_dead_builtin_varyings(struct gl_context *ctx, |
| gl_linked_shader *producer, |
| gl_linked_shader *consumer, |
| unsigned num_tfeedback_decls, |
| class tfeedback_decl *tfeedback_decls); |
| bool do_dead_code(exec_list *instructions, bool uniform_locations_assigned); |
| bool do_dead_code_local(exec_list *instructions); |
| bool do_dead_code_unlinked(exec_list *instructions); |
| bool do_dead_functions(exec_list *instructions); |
| bool opt_flip_matrices(exec_list *instructions); |
| bool do_function_inlining(exec_list *instructions); |
| 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); |
| bool do_lower_texture_projection(exec_list *instructions); |
| bool do_if_simplification(exec_list *instructions); |
| bool opt_flatten_nested_if_blocks(exec_list *instructions); |
| bool do_discard_simplification(exec_list *instructions); |
| bool lower_if_to_cond_assign(gl_shader_stage stage, exec_list *instructions, |
| unsigned max_depth = 0, unsigned min_branch_cost = 0); |
| bool do_mat_op_to_vec(exec_list *instructions); |
| bool do_minmax_prune(exec_list *instructions); |
| bool do_noop_swizzle(exec_list *instructions); |
| bool do_structure_splitting(exec_list *instructions); |
| bool do_swizzle_swizzle(exec_list *instructions); |
| bool do_vectorize(exec_list *instructions); |
| bool do_tree_grafting(exec_list *instructions); |
| bool do_vec_index_to_cond_assign(exec_list *instructions); |
| bool do_vec_index_to_swizzle(exec_list *instructions); |
| bool lower_discard(exec_list *instructions); |
| void lower_discard_flow(exec_list *instructions); |
| bool lower_instructions(exec_list *instructions, unsigned what_to_lower); |
| bool lower_noise(exec_list *instructions); |
| bool lower_variable_index_to_cond_assign(gl_shader_stage stage, |
| exec_list *instructions, bool lower_input, bool lower_output, |
| bool lower_temp, bool lower_uniform); |
| bool lower_quadop_vector(exec_list *instructions, bool dont_lower_swz); |
| bool lower_const_arrays_to_uniforms(exec_list *instructions, unsigned stage); |
| bool lower_clip_cull_distance(struct gl_shader_program *prog, |
| gl_linked_shader *shader); |
| void lower_output_reads(unsigned stage, exec_list *instructions); |
| bool lower_packing_builtins(exec_list *instructions, int op_mask); |
| void lower_shared_reference(struct gl_linked_shader *shader, |
| unsigned *shared_size); |
| void lower_ubo_reference(struct gl_linked_shader *shader, |
| bool clamp_block_indices); |
| void lower_packed_varyings(void *mem_ctx, |
| unsigned locations_used, |
| const uint8_t *components, |
| ir_variable_mode mode, |
| unsigned gs_input_vertices, |
| gl_linked_shader *shader, |
| bool disable_varying_packing, bool xfb_enabled); |
| bool lower_vector_insert(exec_list *instructions, bool lower_nonconstant_index); |
| bool lower_vector_derefs(gl_linked_shader *shader); |
| void lower_named_interface_blocks(void *mem_ctx, gl_linked_shader *shader); |
| bool optimize_redundant_jumps(exec_list *instructions); |
| bool optimize_split_arrays(exec_list *instructions, bool linked); |
| bool lower_offset_arrays(exec_list *instructions); |
| void optimize_dead_builtin_variables(exec_list *instructions, |
| enum ir_variable_mode other); |
| bool lower_tess_level(gl_linked_shader *shader); |
| |
| bool lower_vertex_id(gl_linked_shader *shader); |
| bool lower_blend_equation_advanced(gl_linked_shader *shader); |
| |
| bool lower_subroutine(exec_list *instructions, struct _mesa_glsl_parse_state *state); |
| void propagate_invariance(exec_list *instructions); |
| |
| ir_rvalue * |
| compare_index_block(exec_list *instructions, ir_variable *index, |
| unsigned base, unsigned components, void *mem_ctx); |
