[Dy2St] Optimize range_block_do performance
#69834
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PR Category
Execute Infrastructure
PR Types
Performance
Description
动转静前反向拆分目前在部分 Program 较大的模型上需要很长时间，测试模型开启组合算子后（前向 17686 个 OP，反向个 11558 OP，共 29244 个 OP）上需要 34s
目前$O(N^2)$ ，因此模型规模越大，就显得越慢
range_block_do每次循环在判断退出条件时，都会跑一次it != list_offset(block, range[1])，导致这里变成优化此处后前反向拆分在 100ms 内即可完成，基本无感
顺带将 range 类型从
std::vector<int>改为std::pair<size_t, size_t>，语义上更明确些PCard-66972