zzy
aa4292a30e
添加了间接调用函数emit_indirect_call用于处理寄存器调用， 修改直接调用函数emit_direct_call使用相对分支形式， 为函数元数据添加need_va_args字段标记变参函数需求。 refactor(prolog-epilog): 重构函数序言和尾声处理逻辑 将prolog/epilog回调函数参数从void*改为scc_mir_instr_vec_t*， 添加need_epilog回调函数用于判断是否需要插入尾声代码， 修改pass处理逻辑以支持动态插入序言和尾声代码。 feat(win64-abi): 实现Windows x64平台序言尾声生成功能 实现prologue函数生成栈帧设置和变参处理代码， 实现epilogue函数生成栈清理和返回指令， 添加need_epilog判断函数识别返回指令类型并触发尾声插入。
70 lines
2.9 KiB
C
70 lines
2.9 KiB
C
#ifndef __SCC_X86_ISEL_H__
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#define __SCC_X86_ISEL_H__
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#include <scc_lir_module.h>
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#include <scc_tree_dump.h>
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#include "../core_pass/scc_abi_lowering.h"
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#include "scc_x86_mir.h"
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typedef struct scc_x86_64_isel {
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scc_mir_x86_instr_vec_t instrs;
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scc_mir_func_t *func;
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scc_pos_t pos;
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scc_abi_lowering_t abi_lowering;
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} scc_x86_64_isel_t;
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void scc_isel_x86_64(scc_mir_module_t *mir_module,
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const scc_lir_module_t *lir_module,
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scc_x86_64_isel_t *isel);
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// Utils
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void scc_x86_emit_move(scc_x86_64_isel_t *isel, scc_x86_operand_value_t dst,
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scc_x86_operand_value_t src, u8 size);
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scc_x86_operand_value_t scc_x86_lir_val_to_mir_op(scc_x86_64_isel_t *isel,
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const scc_lir_val_t *val);
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static inline void emit_direct_call(scc_x86_64_isel_t *isel,
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const char *callee) {
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(void)callee;
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scc_mir_x86_instr_t instr = {0};
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scc_mir_x86_instr_1(&instr, SCC_X86_IFORM_CALL_NEAR_RELBRZ,
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scc_x86_op_relbr(0), scc_pos_create());
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scc_vec_push(isel->instrs, instr);
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}
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static inline void emit_indirect_call(scc_x86_64_isel_t *isel,
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scc_x86_operand_value_t reg) {
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scc_mir_x86_instr_t instr = {0};
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scc_mir_x86_instr_1(&instr, SCC_X86_IFORM_CALL_NEAR_GPRV, reg,
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scc_pos_create());
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}
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static inline void emit_ret(scc_x86_64_isel_t *isel) {
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scc_mir_x86_instr_t instr = {0};
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scc_mir_x86_instr_0(&instr, SCC_X86_IFORM_RET_NEAR, scc_pos_create());
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scc_vec_push(isel->instrs, instr);
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}
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#define add_instr_0(isel, iform) \
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do { \
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scc_mir_x86_instr_t instr; \
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scc_mir_x86_instr_0(&instr, (iform), (isel)->pos); \
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scc_vec_push((isel)->instrs, instr); \
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} while (0)
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#define add_instr_1(isel, iform, arg1) \
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do { \
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scc_mir_x86_instr_t instr; \
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scc_mir_x86_instr_1(&instr, (iform), (arg1), (isel)->pos); \
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scc_vec_push((isel)->instrs, instr); \
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} while (0)
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#define add_instr_2(isel, iform, arg1, arg2) \
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do { \
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scc_mir_x86_instr_t instr; \
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scc_mir_x86_instr_2(&instr, (iform), (arg1), (arg2), (isel)->pos); \
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scc_vec_push((isel)->instrs, instr); \
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} while (0)
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#endif /* __SCC_X86_ISEL_H__ */
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