You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
60 lines
2.0 KiB
60 lines
2.0 KiB
#include "BasicBlock.h"
|
|
#include "Constant.h"
|
|
#include "Function.h"
|
|
#include "IRStmtBuilder.h"
|
|
#include "Module.h"
|
|
#include "Type.h"
|
|
|
|
#include <iostream>
|
|
#include <memory>
|
|
#include <vector>
|
|
#ifdef DEBUG // 用于调试信息
|
|
#define DEBUG_OUTPUT std::cout << __LINE__ << std::endl; // 输出行号的简单示例
|
|
#else
|
|
#define DEBUG_OUTPUT
|
|
#endif
|
|
|
|
#define CONST_INT(num) \
|
|
ConstantInt::create(num, module)
|
|
|
|
#define CONST_FP(num) \
|
|
ConstantFloat::create(num, module) // 得到常数值的表示
|
|
using namespace SysYF::IR;
|
|
|
|
int main()
|
|
{
|
|
auto module = Module::create("SysY code assign_test");
|
|
auto builder = IRStmtBuilder::create(nullptr, module);
|
|
SysYF::Ptr<Type> Int32Type = Type::get_int32_type(module);
|
|
SysYF::Ptr<Type> FloatType = Type::get_float_type(module);
|
|
|
|
auto mainFunTy = FunctionType::create(Int32Type, {});
|
|
auto mainFun = Function::create(mainFunTy, "main", module);
|
|
auto main_entry_bb = BasicBlock::create(module, "main_entry", mainFun);
|
|
builder->set_insert_point(main_entry_bb);
|
|
|
|
auto retAlloca = builder->create_alloca(Int32Type);
|
|
|
|
auto bAlloca = builder->create_alloca(FloatType);
|
|
builder->create_store(CONST_FP(1.8), bAlloca);
|
|
|
|
auto arrayType_a = ArrayType::get(Int32Type, 2);
|
|
auto aAlloca = builder->create_alloca(arrayType_a);
|
|
auto a0Gep = builder->create_gep(aAlloca, {CONST_INT(0), CONST_INT(0)});
|
|
builder->create_store(CONST_INT(2), a0Gep);
|
|
auto a0Load = builder->create_load(a0Gep);
|
|
auto a0toFloat = builder->create_sitofp(a0Load, FloatType);
|
|
auto bLoad = builder->create_load(bAlloca);
|
|
auto mul = builder->create_fmul(a0toFloat, bLoad);
|
|
auto multoi32 = builder->create_fptosi(mul, Int32Type);
|
|
auto a1Gep = builder->create_gep(aAlloca, {CONST_INT(0), CONST_INT(1)});
|
|
builder->create_store(multoi32, a1Gep);
|
|
|
|
auto a1Load = builder->create_load(a1Gep);
|
|
builder->create_store(a1Load, retAlloca);
|
|
|
|
auto retLoad = builder->create_load(retAlloca);
|
|
builder->create_ret(retLoad);
|
|
std::cout << module->print();
|
|
return 0;
|
|
} |