forked from NUDT-compiler/nudt-compiler-cpp
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56 lines
2.0 KiB
56 lines
2.0 KiB
# 检查帧槽索引和参数索引之间的对应关系
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num_params = 390
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num_reg_params = 8
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# 模拟帧槽分配
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frame_slots = []
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for param_idx in range(num_params):
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# 创建参数帧槽
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frame_slots.append({"type": "param", "param_idx": param_idx, "is_stack_arg": False})
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# 如果参数在栈上，创建 callee_stack_arg 帧槽
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if param_idx >= num_reg_params:
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frame_slots.append({"type": "callee_stack_arg", "param_idx": param_idx, "is_stack_arg": True})
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# 计算负偏移帧槽的偏移量
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local_cursor = 0
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for i, slot in enumerate(frame_slots):
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if not slot["is_stack_arg"]:
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local_cursor += 4
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frame_slots[i]["offset"] = -local_cursor
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# 检查第 1, 9, 10, 220, 221, 222 个参数的帧槽索引和偏移
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for param_idx in [0, 8, 9, 219, 220, 221]:
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# 找到对应的参数帧槽
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for i, slot in enumerate(frame_slots):
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if slot["type"] == "param" and slot["param_idx"] == param_idx:
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print(f"参数索引 {param_idx} (第 {param_idx+1} 个参数): 帧槽索引 {i}, 偏移 {slot['offset']}")
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break
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# 检查汇编代码中的偏移
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# 根据汇编代码：
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# - 第 1 个参数存储在 x29-4
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# - 第 9 个参数存储在 x29-36
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# - 第 10 个参数存储在 x29-40
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# - 第 220 个参数存储在 x29-884
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# - 第 221 个参数存储在 x29-888
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# - 第 222 个参数存储在 x29-892
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print("\n汇编代码中的偏移:")
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print(f"第 1 个参数: -4")
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print(f"第 9 个参数: -36")
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print(f"第 10 个参数: -40")
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print(f"第 220 个参数: -884")
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print(f"第 221 个参数: -888")
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print(f"第 222 个参数: -892")
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# 计算偏移差
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print("\n偏移差:")
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print(f"第 1 个参数: 预期 -4, 实际 -4, 差 0")
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print(f"第 9 个参数: 预期 -36, 实际 -36, 差 0")
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print(f"第 10 个参数: 预期 -40, 实际 -40, 差 0")
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print(f"第 220 个参数: 预期 -880, 实际 -884, 差 -4")
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print(f"第 221 个参数: 预期 -884, 实际 -888, 差 -4")
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print(f"第 222 个参数: 预期 -888, 实际 -892, 差 -4")
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