diff --git a/src/SysYIRGenerator.cpp b/src/SysYIRGenerator.cpp
index f221205..967ee0d 100644
--- a/src/SysYIRGenerator.cpp
+++ b/src/SysYIRGenerator.cpp
@@ -1,7 +1,7 @@
 // SysYIRGenerator.cpp
 #include "SysYIRGenerator.h"
 #include <iomanip>
-
+// #TODO浮点数精度还是有问题
 std::string SysYIRGenerator::generateIR(SysYParser::CompUnitContext* unit) {
     visitCompUnit(unit);
     return irStream.str();
@@ -42,6 +42,17 @@ std::any SysYIRGenerator::visitConstDecl(SysYParser::ConstDeclContext* ctx) {
         
         if (constDef->constInitVal()) {
             std::string value = std::any_cast<std::string>(constDef->constInitVal()->accept(this));
+            if (llvmType == "float") {
+                try {
+                    double floatValue = std::stod(value); 
+                    uint64_t hexValue = reinterpret_cast<uint64_t&>(floatValue);
+                    std::stringstream ss;
+                    ss << "0x" << std::hex << std::uppercase << hexValue;
+                    value = ss.str();
+                } catch (...) {
+                    throw std::runtime_error("Invalid float literal: " + value);
+                }
+            }
             irStream << "  store " << llvmType << " " << value << ", " << llvmType 
                      << "* " << allocaName << ", align 4\n";
         }
@@ -76,7 +87,7 @@ std::any SysYIRGenerator::visitVarDef(SysYParser::VarDefContext* ctx) {
                 double floatValue = std::stod(value); 
                 uint64_t hexValue = reinterpret_cast<uint64_t&>(floatValue);
                 std::stringstream ss;
-                ss << "0x" << std::hex << std::uppercase << hexValue;
+                ss << "0x" << std::hex << std::uppercase << (hexValue & (0xffffffffUL << 32));
                 value = ss.str();
             } catch (...) {
                 throw std::runtime_error("Invalid float literal: " + value);
@@ -94,6 +105,8 @@ std::any SysYIRGenerator::visitFuncDef(SysYParser::FuncDefContext* ctx) {
     currentFunction = ctx->Ident()->getText();
     currentReturnType = getLLVMType(ctx->funcType()->getText());
     symbolTable.clear();
+    tmpTable.clear();
+    tempCounter = 0;
     hasReturn = false;
     
     irStream << "define dso_local " << currentReturnType << " @" << currentFunction << "(";
@@ -110,7 +123,22 @@ std::any SysYIRGenerator::visitFuncDef(SysYParser::FuncDefContext* ctx) {
     }
     tempCounter++;
     irStream << ") #0 {\n";
-    
+
+    if (ctx->funcFParams()) {
+        auto params = ctx->funcFParams()->funcFParam();
+        for (size_t i = 0; i < params.size(); ++i) {
+            std::string varName = params[i]->Ident()->getText();
+            std::string type = params[i]->bType()->getText();
+            std::string llvmType = getLLVMType(type);
+            std::string allocaName = getNextTemp();
+            tmpTable[allocaName] = llvmType;
+
+            irStream << "  " << allocaName << " = alloca " << llvmType << ", align 4\n";
+            irStream << "  store " << llvmType << " " << symbolTable[varName].first << ", " << llvmType 
+                        << "* " << allocaName << ", align 4\n";
+        
+        }
+    }
     ctx->blockStmt()->accept(this);
     
     if (!hasReturn) {
@@ -141,13 +169,13 @@ std::any SysYIRGenerator::visitStmt(SysYParser::StmtContext* ctx) {
                 double floatValue = std::stod(rhs); 
                 uint64_t hexValue = reinterpret_cast<uint64_t&>(floatValue);
                 std::stringstream ss;
-                ss << "0x" << std::hex << std::uppercase << hexValue;
+                ss << "0x" << std::hex << std::uppercase << (hexValue & (0xffffffffUL << 32));
                 rhs = ss.str();
             } catch (...) {
                 throw std::runtime_error("Invalid float literal: " + rhs);
             }
         }
-        irStream << "  store " << lhsType << " " << rhs << ", " << lhsType 
+        irStream << "  store1 " << lhsType << " " << rhs << ", " << lhsType 
                  << "* " << lhsAlloca << ", align 4\n";
     } else if (ctx->RETURN()) {
         hasReturn = true;
@@ -289,7 +317,7 @@ std::any SysYIRGenerator::visitRelExp(SysYParser::RelExpContext* ctx) {
         std::string right = std::any_cast<std::string>(addExps[i]->accept(this));
         std::string op = ctx->children[2*i-1]->getText();
         std::string temp = getNextTemp();
-        std::string type = left.substr(0, left.find(' '));
+        std::string type = tmpTable[left];
         if (op == "<") {
             irStream << "  " << temp << " = icmp slt " << type << " " << left << ", " << right << "\n";
         } else if (op == ">") {
@@ -311,7 +339,7 @@ std::any SysYIRGenerator::visitEqExp(SysYParser::EqExpContext* ctx) {
         std::string right = std::any_cast<std::string>(relExps[i]->accept(this));
         std::string op = ctx->children[2*i-1]->getText();
         std::string temp = getNextTemp();
-        std::string type = left.substr(0, left.find(' '));
+        std::string type = tmpTable[left];
         if (op == "==") {
             irStream << "  " << temp << " = icmp eq " << type << " " << left << ", " << right << "\n";
         } else if (op == "!=") {