71 lines
2.0 KiB
C
71 lines
2.0 KiB
C
/*
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* Copyright © 2022 Imagination Technologies Ltd.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef ROGUE_REGALLOC_H
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#define ROGUE_REGALLOC_H
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#include <stdbool.h>
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#include <stddef.h>
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#include "util/list.h"
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/**
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* \brief Register classes used for allocation.
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*/
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enum rogue_reg_class {
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ROGUE_REG_CLASS_TEMP,
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ROGUE_REG_CLASS_VEC4,
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ROGUE_REG_CLASS_COUNT,
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};
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/**
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* \brief Register data for each class.
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*/
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struct rogue_reg_data {
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enum rogue_operand_type type;
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size_t count;
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size_t stride;
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size_t offset;
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struct ra_class *class;
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size_t num_used;
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};
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/**
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* \brief Register allocation context.
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*/
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struct rogue_ra {
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struct ra_regs *regs;
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struct rogue_reg_data reg_data[ROGUE_REG_CLASS_COUNT];
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};
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struct rogue_ra *rogue_ra_init(void *mem_ctx);
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bool rogue_ra_alloc(struct list_head *instr_list,
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struct rogue_ra *ra,
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size_t *temps_used,
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size_t *internals_used);
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#endif /* ROGUE_REGALLOC_H */
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