[midend]修改原因同上一次commit
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@@ -74,7 +74,7 @@ void Reg2MemContext::allocateMemoryForSSAValues(Function *func) {
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// 默认情况下,将所有参数是提升到内存
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if (isPromotableToMemory(arg)) {
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// 参数的类型就是 AllocaInst 需要分配的类型
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AllocaInst *alloca = builder->createAllocaInst(Type::getPointerType(arg->getType()), {}, arg->getName() + ".reg2mem");
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AllocaInst *alloca = builder->createAllocaInst(Type::getPointerType(arg->getType()), arg->getName() + ".reg2mem");
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// 将参数值 store 到 alloca 中 (这是 Mem2Reg 逆转的关键一步)
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valueToAllocaMap[arg] = alloca;
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@@ -103,7 +103,7 @@ void Reg2MemContext::allocateMemoryForSSAValues(Function *func) {
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// AllocaInst 应该在入口块,而不是当前指令所在块
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// 这里我们只是创建,并稍后调整其位置
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// 通常的做法是在循环结束后统一将 alloca 放到 entryBlock 的顶部
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AllocaInst *alloca = builder->createAllocaInst(Type::getPointerType(inst.get()->getType()), {}, inst.get()->getName() + ".reg2mem");
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AllocaInst *alloca = builder->createAllocaInst(Type::getPointerType(inst.get()->getType()), inst.get()->getName() + ".reg2mem");
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valueToAllocaMap[inst.get()] = alloca;
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}
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}
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