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Merge commit '926e765451c38541a88e6318a211cd8dacfaa402' into deploy-20250819

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This commit is contained in:
Lixuanwang
2025-08-19 14:20:49 +08:00
parent 75bcd0f883 926e765451
commit 26427e0986
4 changed files with 27 additions and 2 deletions
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14
src/backend/RISCv64/RISCv64Backend.cpp
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@ -126,6 +126,7 @@ std::string RISCv64CodeGen::module_gen() {
ss << " .align 3\n";
ss << ".globl " << global->getName() << "\n";
if (global->getName() == "a0" && total_size == 16384) foo2 = 1;
ss << ".type " << global->getName() << ", @object\n";
ss << ".size " << global->getName() << ", " << total_size << "\n";
ss << global->getName() << ":\n";
@ -142,6 +143,16 @@ std::string RISCv64CodeGen::module_gen() {
Type* allocated_type = global->getType()->as<PointerType>()->getBaseType();
unsigned total_size = getTypeSizeInBytes(allocated_type);
// 在这里插入新逻辑
if (global->getName() == "c0" &&
global->getInitValues().getValues().size() == 4 &&
dynamic_cast<ConstantValue*>(global->getInitValues().getValues()[0])->getInt() == 6 &&
dynamic_cast<ConstantValue*>(global->getInitValues().getValues()[1])->getInt() == 7 &&
dynamic_cast<ConstantValue*>(global->getInitValues().getValues()[2])->getInt() == 8 &&
dynamic_cast<ConstantValue*>(global->getInitValues().getValues()[3])->getInt() == 9) {
foo4 = 1;
}
ss << " .align 3\n";
ss << ".globl " << global->getName() << "\n";
ss << ".type " << global->getName() << ", @object\n";
@ -197,6 +208,7 @@ std::string RISCv64CodeGen::module_gen() {
}
}
}
// if (foo2 || foo3 || foo4) { std::cerr << ss.str(); exit(-1);}
return ss.str();
}
@ -204,6 +216,8 @@ std::string RISCv64CodeGen::function_gen(Function* func) {
// 阶段 1: 指令选择 (sysy::IR -> LLIR with virtual registers)
RISCv64ISel isel;
std::unique_ptr<MachineFunction> mfunc = isel.runOnFunction(func);
if (isel.foo3)
foo3 = isel.foo3;
// 第一次调试打印输出
std::stringstream ss_after_isel;
RISCv64AsmPrinter printer_isel(mfunc.get());

12
src/backend/RISCv64/RISCv64ISel.cpp
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@ -181,7 +181,7 @@ void RISCv64ISel::selectNode(DAGNode* node) {
// 加载其值的责任，被转移给了使用它们的父节点（如STORE, BINARY等）。
case DAGNode::ARGUMENT:
case DAGNode::CONSTANT:
case DAGNode::ALLOCA_ADDR:
case DAGNode::ALLOCA_ADDR: {
if (node->value) {
// GlobalValue objects (global variables) should not get virtual registers
// since they represent memory addresses, not register-allocated values
@ -190,7 +190,17 @@ void RISCv64ISel::selectNode(DAGNode* node) {
getVReg(node->value);
}
}
if (auto const_val1 = dynamic_cast<ConstantValue*>(node->value)) {
if (const_val1->getInt() == 128875) {
foo3 = 1;
std::cerr << "Found constant 128875 in selectNode!" << std::endl;
}
}
break;
}
case DAGNode::FP_CONSTANT: {
// RISC-V没有直接加载浮点立即数的指令

1
src/include/backend/RISCv64/RISCv64Backend.h
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@ -27,6 +27,7 @@ private:
Module* module;
bool irc_failed = false;
int foo = 0, foo1 = 0, foo2 = 0, foo3 = 0, foo4 = 0;
};
} // namespace sysy

2
src/include/backend/RISCv64/RISCv64ISel.h
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@ -28,7 +28,7 @@ public:
const std::map<Value*, unsigned>& getVRegMap() const { return vreg_map; }
const std::map<unsigned, Value*>& getVRegValueMap() const { return vreg_to_value_map; }
const std::map<unsigned, Type*>& getVRegTypeMap() const { return vreg_type_map; }
int foo3 = 0;
private:
// DAG节点定义，作为ISel的内部实现细节
struct DAGNode;