1 /* 2 * Copyright © 2022 Imagination Technologies Ltd. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a copy 5 * of this software and associated documentation files (the "Software"), to deal 6 * in the Software without restriction, including without limitation the rights 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 8 * copies of the Software, and to permit persons to whom the Software is 9 * 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 THE 18 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 * SOFTWARE. 22 */ 23 24 #ifndef ROGUE_REGALLOC_H 25 #define ROGUE_REGALLOC_H 26 27 #include <stdbool.h> 28 #include <stddef.h> 29 30 #include "util/list.h" 31 32 /** 33 * \brief Register classes used for allocation. 34 */ 35 enum rogue_reg_class { 36 ROGUE_REG_CLASS_TEMP, 37 ROGUE_REG_CLASS_VEC4, 38 39 ROGUE_REG_CLASS_COUNT, 40 }; 41 42 /** 43 * \brief Register data for each class. 44 */ 45 struct rogue_reg_data { 46 enum rogue_operand_type type; 47 size_t count; 48 size_t stride; 49 50 size_t offset; 51 struct ra_class *class; 52 size_t num_used; 53 }; 54 55 /** 56 * \brief Register allocation context. 57 */ 58 struct rogue_ra { 59 struct ra_regs *regs; 60 61 struct rogue_reg_data reg_data[ROGUE_REG_CLASS_COUNT]; 62 }; 63 64 struct rogue_ra *rogue_ra_init(void *mem_ctx); 65 bool rogue_ra_alloc(struct list_head *instr_list, 66 struct rogue_ra *ra, 67 size_t *temps_used, 68 size_t *internals_used); 69 70 #endif /* ROGUE_REGALLOC_H */ 71