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lzkk d238777f17 fix(regalloc): 根除 spill 代码指数级膨胀——MAX_SPILL_ROUNDS 统一为 3 ... 根因：MAX_SPILL_ROUNDS 在 vreg≤120 的函数上为 10，导致每轮 spill 数量翻倍（14→25→48→94→186→370→738→1474→2946→5890）， 67-vreg 的 mm1 累计产生 11,785 个 frame slot，帧 138KB，85K 指令。 修复： - MAX_SPILL_ROUNDS 统一为 3，防止级联膨胀 - 新增 AssignSpillSlots：不重叠活区间的 spilled vreg 共享 frame slot - RewriteWithAllocation 接收可选 liveness 参数以支持 slot 共享 效果（mm1）：529 行（-99.4%），帧 1232 字节（-99.1%）		5 days ago
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antlr4	fix: 补全缺失的头文件目录	3 weeks ago
frontend	Fix undefined behavior: signed overflow, negative left shift, float-to-int overflow	3 weeks ago
include	perf(backend): 叶函数跳过帧设置，节省 x29/x30 保存/恢复	5 days ago
ir	fix(mem2reg): 添加大参数函数安全门禁，修复 87_many_params	5 days ago
irgen	Fix starttime/stoptime function name and add line number parameter	3 weeks ago
mir	fix(regalloc): 根除 spill 代码指数级膨胀——MAX_SPILL_ROUNDS 统一为 3	5 days ago
sem	Fix undefined behavior: signed overflow, negative left shift, float-to-int overflow	3 weeks ago
utils	Fix undefined behavior: signed overflow, negative left shift, float-to-int overflow	3 weeks ago
CMakeLists.txt	已实现基本标量优化，实现部分寄存器优化	3 weeks ago
main.cpp	实现循环优化：LICM、强度削弱、循环展开、循环分裂	1 week ago