1/* 2 * Copyright 2013 Vadim Girlin <vadimgirlin@gmail.com> 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 * on the rights to use, copy, modify, merge, publish, distribute, sub 8 * license, and/or sell copies of the Software, and to permit persons to whom 9 * the 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 NON-INFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, 19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 21 * USE OR OTHER DEALINGS IN THE SOFTWARE. 22 * 23 * Authors: 24 * Vadim Girlin 25 */ 26 27#ifndef SB_EXPR_H_ 28#define SB_EXPR_H_ 29 30namespace r600_sb { 31 32inline float float_clamp(float v) { 33 return v < 0.0f ? 0.0f : (v > 1.0f ? 1.0f : v); 34} 35 36value* get_select_value_for_em(shader &sh, value *em); 37 38void convert_predset_to_set(shader &sh, alu_node *a); 39unsigned invert_setcc_condition(unsigned cc, bool &swap_args); 40unsigned get_setcc_op(unsigned cc, unsigned cmp_type, bool int_dst); 41unsigned get_predsetcc_op(unsigned cc, unsigned cmp_type); 42unsigned get_killcc_op(unsigned cc, unsigned cmp_type); 43unsigned get_cndcc_op(unsigned cc, unsigned cmp_type); 44 45void convert_to_mov(alu_node &n, value *src, 46 bool neg = false, bool abs = false); 47 48class expr_handler { 49 50 shader &sh; 51 value_table &vt; 52 53public: 54 55 expr_handler(shader &sh); 56 57 bool equal(value *l, value *r); 58 bool defs_equal(value *l, value *r); 59 bool args_equal(const vvec &l, const vvec &r); 60 bool ops_equal(const alu_node *l, const alu_node *r); 61 bool ivars_equal(value *l, value *r); 62 63 value* get_const(const literal &l); 64 65 bool try_fold(value *v); 66 bool try_fold(node *n); 67 68 bool fold(node &n); 69 bool fold(container_node &n); 70 bool fold(alu_node &n); 71 bool fold(fetch_node &n); 72 bool fold(cf_node &n); 73 74 bool fold_setcc(alu_node &n); 75 76 bool fold_alu_op1(alu_node &n); 77 bool fold_alu_op2(alu_node &n); 78 bool fold_alu_op3(alu_node &n); 79 80 bool fold_mul_add(alu_node *n); 81 bool eval_const_op(unsigned op, literal &r, literal cv0, literal cv1); 82 bool fold_assoc(alu_node *n); 83 84 static void apply_alu_src_mod(const bc_alu &bc, unsigned src, literal &v); 85 static void apply_alu_dst_mod(const bc_alu &bc, literal &v); 86 87 void assign_source(value *dst, value *src); 88 89 static bool evaluate_condition(unsigned alu_cnd_flags, literal s1, 90 literal s2); 91}; 92 93} // namespace r600_sb 94 95#endif /* SB_EXPR_H_ */ 96