From a269366ac51efdbf99bff6a17938d346d29c981d Mon Sep 17 00:00:00 2001
From: Lixuanwang <xlwmail@nudt.edu.cn>
Date: Mon, 4 Aug 2025 02:31:18 +0800
Subject: [PATCH] =?UTF-8?q?[backend]=E4=BF=AE=E5=A4=8D=E4=BA=86=E8=BE=83?=
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---
 src/backend/RISCv64/RISCv64Backend.cpp | 24 +++++++++++++++++++++++-
 1 file changed, 23 insertions(+), 1 deletion(-)

diff --git a/src/backend/RISCv64/RISCv64Backend.cpp b/src/backend/RISCv64/RISCv64Backend.cpp
index e45248f..7e08102 100644
--- a/src/backend/RISCv64/RISCv64Backend.cpp
+++ b/src/backend/RISCv64/RISCv64Backend.cpp
@@ -139,7 +139,29 @@ std::string RISCv64CodeGen::module_gen() {
             ss << ".type " << global->getName() << ", @object\n";
             ss << ".size " << global->getName() << ", " << total_size << "\n";
             ss << global->getName() << ":\n";
-            printInitializer(ss, global->getInitValues());
+            bool is_all_zeros = true;
+            const auto& init_values = global->getInitValues();
+            if (init_values.getValues().empty()) {
+                is_all_zeros = true;
+            } else {
+                for (auto val : init_values.getValues()) {
+                    if (auto const_val = dynamic_cast<ConstantValue*>(val)) {
+                        if (!const_val->isZero()) {
+                            is_all_zeros = false;
+                            break;
+                        }
+                    } else {
+                        is_all_zeros = false;
+                        break;
+                    }
+                }
+            }
+            if (is_all_zeros) {
+                ss << "    .zero " << total_size << "\n";
+            } else {
+                // 对于有非零初始值的变量，保持原有的打印逻辑。
+                printInitializer(ss, global->getInitValues());
+            }
         }
 
         // b. 处理全局常量 (ConstantVariable)