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feat(mir): 添加x86架构相关头文件并重构MIR指令表示

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- 创建scc_x86_mir.h头文件，定义x86后端MIR指令结构和操作数构造器
- 创建scc_x86_isel.h头文件，定义x86_64指令选择器和相关工具函数
- 创建scc_x86_reg_alloc.h头文件，定义x86寄存器分配架构特定接口
- 移除旧的x86_64_isel.h和x86_64_reg_alloc.h文件
- 重构scc_mir.h中的指令表示，使用联合体存储伪指令数据
- 更新ABI lowering回调参数，使用void指针保持类型无关
- 扩展寄存器分配操作接口，添加指令信息查询和伪指令处理功能
- 更新目标文件包含路径以使用新的头文件命名
This commit is contained in:
zzy
2026-05-20 11:07:05 +08:00
parent 2c13ac54df
commit c6e3bb2e20
22 changed files with 792 additions and 788 deletions
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52
libs/ir2mcode/src/scc_ir2mcode.c
View File

@@ -2,52 +2,30 @@
#include <scc_mcode.h>
#include <scc_mir_module.h>
#include <arch/scc_x86_mir.h>
#include <x86/scc_x86_encode.h>
#include <x86/scc_x86_iform.h>
#include <x86/scc_x86_reg.h>
void mir_x86_to_mcode(scc_mcode_t *mcode, const scc_mir_instr_t *ins) {
void mir_x86_to_mcode(scc_mcode_t *mcode, const scc_mir_x86_instr_t *_ins) {
scc_x86_instr_t *ins = (void *)_ins;
if (ins->opcode < 0 || ins->opcode >= SCC_X86_IFORM_COUNT) {
return;
}
scc_x86_operand_value_t ops[8] = {0};
for (int i = 0; i < ins->num_operands; i += 1) {
switch (ins->operands[i].kind) {
case SCC_MIR_OP_VREG:
for (int i = 0; i < ins->num_operands; i++) {
if (scc_x86_op_is_vreg(&ins->operands[i]))
Panic("can't convert vreg to mcode");
break;
case SCC_MIR_OP_PREG:
ops[i].kind = SCC_X86_OPR_REG;
ops[i].reg = ins->operands[i].preg;
break;
case SCC_MIR_OP_STACK_SLOT:
Panic("can't convert mem to mcode");
break;
case SCC_MIR_OP_STACK_OFFSET:
// TODO
ops[i].kind = SCC_X86_OPR_MEM;
ops[i].mem.base = SCC_X86_REG_RSP;
ops[i].mem.index = SCC_X86_REG_INVALID;
ops[i].mem.scale = 1;
ops[i].mem.disp = -ins->operands[i].stack_offset; // 注意符号
break;
case SCC_MIR_OP_IMM:
ops[i].kind = SCC_X86_OPR_IMM;
ops[i].imm = ins->operands[i].imm;
break;
case SCC_MIR_OP_SYMBOL:
case SCC_MIR_OP_BLOCK:
ops[i].kind = SCC_X86_OPR_RELBR;
ops[i].imm = 0;
break;
default:
Panic("unsupported operand kind");
};
if (scc_x86_op_is_slot(&ins->operands[i]))
Panic("can't convert unresolved slot to mcode");
ops[i] = ins->operands[i];
}
scc_x86_encode_inst(mcode, ins->opcode, ops);
}
void scc_ir2mcode_emit_instr(scc_mcode_t *mcode,
const scc_mir_instr_t *mir_instr) {
// TODO
mir_x86_to_mcode(mcode, mir_instr);
mir_x86_to_mcode(mcode, (const scc_mir_x86_instr_t *)mir_instr);
}
void scc_ir2mcode(scc_mcode_t *mcode, const scc_mir_module_t *mir_module) {
@@ -59,9 +37,11 @@ void scc_ir2mcode(scc_mcode_t *mcode, const scc_mir_module_t *mir_module) {
scc_cfg_bblock_id_t id = scc_vec_at(func->bblocks, i);
const scc_cfg_bblock_t *bb =
scc_cfg_module_unsafe_get_bblock(&mir_module->cfg_module, id);
scc_mir_instr_vec_t *instrs = SCC_MIR_BBLOCK_VALUES(bb);
const scc_mir_x86_instr_vec_t *instrs =
SCC_MIR_BBLOCK_VALUES_PTR(bb);
scc_vec_foreach(*instrs, i) {
const scc_mir_instr_t *ins = &scc_vec_at(*instrs, i);
const scc_mir_instr_t *ins =
scc_vec_sized_at_ptr(*instrs, mir_module->instr_size, i);
scc_ir2mcode_emit_instr(mcode, ins);
}
}

5
libs/ir2mcode/src/scc_ir2sccf.c
View File

@@ -88,9 +88,10 @@ void scc_ir2sccf(sccf_builder_t *builder, scc_mir_module_t *mir_module) {
scc_cfg_bblock_id_t id = scc_vec_at(func->bblocks, i);
const scc_cfg_bblock_t *bb =
scc_cfg_module_unsafe_get_bblock(&mir_module->cfg_module, id);
scc_mir_instr_vec_t *instrs = SCC_MIR_BBLOCK_VALUES(bb);
scc_mir_instr_vec_t *instrs = SCC_MIR_BBLOCK_VALUES_PTR(bb);
scc_vec_foreach(*instrs, i) {
const scc_mir_instr_t *ins = &scc_vec_at(*instrs, i);
const scc_mir_instr_t *ins =
scc_vec_sized_at_ptr(*instrs, mir_module->instr_size, i);
// FIXME reloc symbol needed
scc_ir2mcode_emit_instr(&mcode, ins);
}