diff --git a/clang/lib/CIR/Lowering/LoweringHelpers.cpp b/clang/lib/CIR/Lowering/LoweringHelpers.cpp
index 2393819b4813..26b2af82ca19 100644
--- a/clang/lib/CIR/Lowering/LoweringHelpers.cpp
+++ b/clang/lib/CIR/Lowering/LoweringHelpers.cpp
@@ -19,6 +19,11 @@ convertStringAttrToDenseElementsAttr(mlir::cir::ConstArrayAttr attr,
   assert(stringAttr && "expected string attribute here");
   for (auto element : stringAttr)
     values.push_back({8, (uint64_t)element});
+  auto arrayTy = mlir::dyn_cast<mlir::cir::ArrayType>(attr.getType());
+  assert(arrayTy && "String attribute must have an array type");
+  if (arrayTy.getSize() != stringAttr.size())
+    llvm_unreachable("array type of the length not equal to that of the string "
+                     "attribute is not supported yet");
   return mlir::DenseElementsAttr::get(
       mlir::RankedTensorType::get({(int64_t)values.size()}, type),
       llvm::ArrayRef(values));
diff --git a/clang/lib/CIR/Lowering/ThroughMLIR/CMakeLists.txt b/clang/lib/CIR/Lowering/ThroughMLIR/CMakeLists.txt
index 75328ca28ffc..7aa436b04e00 100644
--- a/clang/lib/CIR/Lowering/ThroughMLIR/CMakeLists.txt
+++ b/clang/lib/CIR/Lowering/ThroughMLIR/CMakeLists.txt
@@ -27,6 +27,7 @@ add_clang_library(clangCIRLoweringThroughMLIR
   clangLex
   clangFrontend
   clangCIR
+  clangCIRLoweringHelpers
   ${dialect_libs}
   MLIRCIR
   MLIRAnalysis
diff --git a/clang/lib/CIR/Lowering/ThroughMLIR/LowerCIRToMLIR.cpp b/clang/lib/CIR/Lowering/ThroughMLIR/LowerCIRToMLIR.cpp
index 48a11b40b437..92f4108a5d40 100644
--- a/clang/lib/CIR/Lowering/ThroughMLIR/LowerCIRToMLIR.cpp
+++ b/clang/lib/CIR/Lowering/ThroughMLIR/LowerCIRToMLIR.cpp
@@ -46,6 +46,7 @@
 #include "mlir/Transforms/DialectConversion.h"
 #include "clang/CIR/Dialect/IR/CIRDialect.h"
 #include "clang/CIR/Dialect/IR/CIRTypes.h"
+#include "clang/CIR/LoweringHelpers.h"
 #include "clang/CIR/LowerToMLIR.h"
 #include "clang/CIR/Passes.h"
 #include "llvm/ADT/STLExtras.h"
@@ -936,7 +937,15 @@ class CIRGlobalOpLowering
     mlir::Attribute initialValue = mlir::Attribute();
     std::optional<mlir::Attribute> init = op.getInitialValue();
     if (init.has_value()) {
-      if (auto constArr = mlir::dyn_cast<mlir::cir::ZeroAttr>(init.value())) {
+      if (auto constArr =
+              mlir::dyn_cast<mlir::cir::ConstArrayAttr>(init.value())) {
+        init = lowerConstArrayAttr(constArr, getTypeConverter());
+        if (init.has_value())
+          initialValue = init.value();
+        else
+          llvm_unreachable("GlobalOp lowering array with initial value fail");
+      } else if (auto constArr =
+                     mlir::dyn_cast<mlir::cir::ZeroAttr>(init.value())) {
         if (memrefType.getShape().size()) {
           auto elementType = memrefType.getElementType();
           auto rtt =
diff --git a/clang/test/CIR/Lowering/ThroughMLIR/global.cpp b/clang/test/CIR/Lowering/ThroughMLIR/global.cpp
index 412ffd6b8d89..d7627139ff6c 100644
--- a/clang/test/CIR/Lowering/ThroughMLIR/global.cpp
+++ b/clang/test/CIR/Lowering/ThroughMLIR/global.cpp
@@ -2,7 +2,16 @@
 // RUN: FileCheck --input-file=%t.mlir %s
 
 float f[32000];
-double d;
-
 // CHECK: memref.global "public" @f : memref<32000xf32> = dense<0.000000e+00>
+double d;
 // CHECK: memref.global "public" @d : memref<f64> = dense<0.000000e+00>
+float f_init[] = {1.0, 2.0};
+// CHECK: memref.global "public" @f_init : memref<2xf32> = dense<[1.000000e+00, 2.000000e+00]>
+int i_init[2] = {0, 1};
+// CHECK: memref.global "public" @i_init : memref<2xi32> = dense<[0, 1]>
+char string[] = "whatnow";
+// CHECK: memref.global "public" @string : memref<8xi8> = dense<[119, 104, 97, 116, 110, 111, 119, 0]>
+int excess_sint[4] = {1, 2};
+// CHECK: memref.global "public" @excess_sint : memref<4xi32> = dense<[1, 2, 0, 0]>
+int sint[] = {123, 456, 789};
+// CHECK: memref.global "public" @sint : memref<3xi32> = dense<[123, 456, 789]>