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[IR]重构数组地址相关指令

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增加GEP指令以及相关方法
新增数组Array Type
删除无用指令(GetSubArray,LA)
删除冗余类定义(Lval)
修复中间代码生成逻辑
测试通过所以test目录下的文件
TODO:后端展开数组计算地址仅需要针对GEP指令展开
This commit is contained in:
rain2133
2025-07-20 15:33:58 +08:00
parent 18e7cbd413
commit de696b2b53
8 changed files with 455 additions and 467 deletions
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58
src/include/IRBuilder.h
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@@ -280,46 +280,6 @@ class IRBuilder {
block->getInstructions().emplace(position, inst);
return inst;
} ///< 创建load指令
LaInst * createLaInst(Value *pointer, const std::vector<Value *> &indices = {}, const std::string &name = "") {
std::string newName;
if (name.empty()) {
std::stringstream ss;
ss << tmpIndex;
newName = ss.str();
tmpIndex++;
} else {
newName = name;
}
auto inst = new LaInst(pointer, indices, block, newName);
assert(inst);
block->getInstructions().emplace(position, inst);
return inst;
} ///< 创建la指令
GetSubArrayInst * createGetSubArray(LVal *fatherArray, const std::vector<Value *> &indices, const std::string &name = "") {
assert(fatherArray->getLValNumDims() > indices.size());
std::vector<Value *> subDims;
auto dims = fatherArray->getLValDims();
auto iter = std::next(dims.begin(), indices.size());
while (iter != dims.end()) {
subDims.emplace_back(*iter);
iter++;
}
std::string childArrayName;
std::stringstream ss;
ss << "A"
<< "%" << tmpIndex;
childArrayName = ss.str();
tmpIndex++;
auto fatherArrayValue = dynamic_cast<Value *>(fatherArray);
auto childArray = new AllocaInst(fatherArrayValue->getType(), subDims, block, childArrayName);
auto inst = new GetSubArrayInst(fatherArray, childArray, indices, block, childArrayName);
assert(inst);
block->getInstructions().emplace(position, inst);
return inst;
} ///< 创建获取部分数组指令
MemsetInst * createMemsetInst(Value *pointer, Value *begin, Value *size, Value *value, const std::string &name = "") {
auto inst = new MemsetInst(pointer, begin, size, value, block, name);
assert(inst);
@@ -340,6 +300,24 @@ class IRBuilder {
block->getInstructions().emplace(block->begin(), inst);
return inst;
} ///< 创建Phi指令
GetElementPtrInst* createGetElementPtrInst(Value *basePointer,
const std::vector<Value *> &indices = {},
const std::string &name = "") {
std::string newName;
if (name.empty()) {
std::stringstream ss;
ss << tmpIndex;
newName = ss.str();
tmpIndex++;
} else {
newName = name;
}
auto inst = new GetElementPtrInst(basePointer, indices, block, newName);
assert(inst);
block->getInstructions().emplace(position, inst);
return inst;
}
};
} // namespace sysy