forked from NUDT-compiler/nudt-compiler-cpp
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49 lines
2.0 KiB
49 lines
2.0 KiB
# 计算 callee_stack_arg 帧槽的正确偏移
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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 callee_stack_arg 帧槽的初始偏移
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stack_arg_cursor = 0
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for i, slot in enumerate(frame_slots):
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if slot["is_stack_arg"]:
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slot["initial_offset"] = stack_arg_cursor
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stack_arg_cursor += 8
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# 找到第 222 个参数的 callee_stack_arg 帧槽
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param_idx_222 = 221 # 从 0 开始
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for i, slot in enumerate(frame_slots):
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if slot["type"] == "callee_stack_arg" and slot["param_idx"] == param_idx_222:
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print(f"第 222 个参数的 callee_stack_arg 帧槽索引: {i}")
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print(f"初始偏移: {slot['initial_offset']}")
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print(f"main 函数中第 222 个参数的栈上偏移量: {(222-8-1) * 8}")
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break
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# 检查第 9 个参数的 callee_stack_arg 帧槽
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param_idx_9 = 8 # 从 0 开始
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for i, slot in enumerate(frame_slots):
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if slot["type"] == "callee_stack_arg" and slot["param_idx"] == param_idx_9:
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print(f"\n第 9 个参数的 callee_stack_arg 帧槽索引: {i}")
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print(f"初始偏移: {slot['initial_offset']}")
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print(f"main 函数中第 9 个参数的栈上偏移量: {(9-8-1) * 8}")
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break
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# 检查第 10 个参数的 callee_stack_arg 帧槽
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param_idx_10 = 9 # 从 0 开始
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for i, slot in enumerate(frame_slots):
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if slot["type"] == "callee_stack_arg" and slot["param_idx"] == param_idx_10:
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print(f"\n第 10 个参数的 callee_stack_arg 帧槽索引: {i}")
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print(f"初始偏移: {slot['initial_offset']}")
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print(f"main 函数中第 10 个参数的栈上偏移量: {(10-8-1) * 8}")
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break
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