diff --git a/mlir/lib/Dialect/SPIRV/Transforms/UnifyAliasedResourcePass.cpp b/mlir/lib/Dialect/SPIRV/Transforms/UnifyAliasedResourcePass.cpp
--- a/mlir/lib/Dialect/SPIRV/Transforms/UnifyAliasedResourcePass.cpp
+++ b/mlir/lib/Dialect/SPIRV/Transforms/UnifyAliasedResourcePass.cpp
@@ -488,8 +488,22 @@
       Type vectorType = srcElemType;
       if (!srcElemType.isa<VectorType>())
         vectorType = VectorType::get({ratio}, dstElemType);
+
+      if (srcElemType.isa<VectorType>() && dstElemType.isa<VectorType>()) {
+        if (srcElemType.cast<VectorType>().getElementType() !=
+            dstElemType.cast<VectorType>().getElementType()) {
+          auto srcElemVecType = srcElemType.cast<VectorType>();
+          int count =
+              dstNumBytes / (srcElemVecType.getElementTypeBitWidth() / 8);
+          auto castType =
+              VectorType::get({count}, srcElemVecType.getElementType());
+          for (auto &c : components)
+            c = rewriter.create<spirv::BitcastOp>(loc, castType, c);
+        }
+      }
       Value vectorValue = rewriter.create<spirv::CompositeConstructOp>(
           loc, vectorType, components);
+
       if (!srcElemType.isa<VectorType>())
         vectorValue =
             rewriter.create<spirv::BitcastOp>(loc, srcElemType, vectorValue);
diff --git a/mlir/test/Dialect/SPIRV/Transforms/unify-aliased-resource.mlir b/mlir/test/Dialect/SPIRV/Transforms/unify-aliased-resource.mlir
--- a/mlir/test/Dialect/SPIRV/Transforms/unify-aliased-resource.mlir
+++ b/mlir/test/Dialect/SPIRV/Transforms/unify-aliased-resource.mlir
@@ -448,3 +448,34 @@
 // CHECK: spirv.GlobalVariable @var01_i16 bind(0, 1) {aliased}
 
 // CHECK: spirv.func @scalar_type_bitwidth_smaller_than_vector
+
+// -----
+
+spirv.module Logical GLSL450 {
+  spirv.GlobalVariable @var00_v4f32 bind(0, 0) {aliased} : !spirv.ptr<!spirv.struct<(!spirv.rtarray<vector<4xf32>, stride=16> [0])>, StorageBuffer>
+  spirv.GlobalVariable @var00_v4f16 bind(0, 0) {aliased} : !spirv.ptr<!spirv.struct<(!spirv.rtarray<vector<4xf16>, stride=8> [0])>, StorageBuffer>
+
+  spirv.func @vector_type_same_size_different_element_type(%i0: i32) -> vector<4xf32> "None" {
+    %c0 = spirv.Constant 0 : i32
+
+    %addr = spirv.mlir.addressof @var00_v4f32 : !spirv.ptr<!spirv.struct<(!spirv.rtarray<vector<4xf32>, stride=16> [0])>, StorageBuffer>
+    %ac = spirv.AccessChain %addr[%c0, %i0] : !spirv.ptr<!spirv.struct<(!spirv.rtarray<vector<4xf32>, stride=16> [0])>, StorageBuffer>, i32, i32
+    %val = spirv.Load "StorageBuffer" %ac :  vector<4xf32>
+
+    spirv.ReturnValue %val : vector<4xf32>
+  }
+}
+
+// CHECK-LABEL: spirv.module
+
+// CHECK: spirv.GlobalVariable @var00_v4f16 bind(0, 0) : !spirv.ptr<!spirv.struct<(!spirv.rtarray<vector<4xf16>, stride=8> [0])>, StorageBuffer>
+
+// CHECK: spirv.func @vector_type_same_size_different_element_type
+
+// CHECK:   %[[LD0:.+]] = spirv.Load "StorageBuffer" %{{.+}} : vector<4xf16>
+// CHECK:   %[[LD1:.+]] = spirv.Load "StorageBuffer" %{{.+}} : vector<4xf16>
+// CHECK:   %[[BC0:.+]] = spirv.Bitcast %[[LD0]] : vector<4xf16> to vector<2xf32>
+// CHECK:   %[[BC1:.+]] = spirv.Bitcast %[[LD1]] : vector<4xf16> to vector<2xf32>
+// CHECK:   %[[CC:.+]] = spirv.CompositeConstruct %[[BC0]], %[[BC1]] : (vector<2xf32>, vector<2xf32>) -> vector<4xf32>
+// CHECK:   spirv.ReturnValue %[[CC]]
+