diff --git a/src/simd/misc/simd_func_dispatcher.cpp b/src/simd/misc/simd_func_dispatcher.cpp
index 9528f01..2204d23 100644
--- a/src/simd/misc/simd_func_dispatcher.cpp
+++ b/src/simd/misc/simd_func_dispatcher.cpp
@@ -10,12 +10,15 @@
 static std::string_view version_to_lib_name(simd_func_version version) {
     switch (version) {
         case simd_func_version::SCALAR: return "scaler";
+        #if ALICHO_PLATFORM_X86
         case simd_func_version::SSE: return "sse";
         case simd_func_version::AVX: return "avx";
-        case simd_func_version::AVX2: return "avx2";
         case simd_func_version::AVX512: return "avx512";
+        #endif
+        #if ALICHO_PLATFORM_ARM
         case simd_func_version::NEON: return "neon";
         case simd_func_version::NEON_FP16: return "neon_fp16";
+        #endif
         default: return "";
     }
 }
diff --git a/tests/simd/test_simd_audio_processing.cpp b/tests/simd/test_simd_audio_processing.cpp
index 8da388b..8fe53d8 100644
--- a/tests/simd/test_simd_audio_processing.cpp
+++ b/tests/simd/test_simd_audio_processing.cpp
@@ -479,15 +479,8 @@ TEST_F(AlignmentTest, UnalignedBufferHandling) {
     std::vector<float, avx512_aligned_allocator> aligned_storage(1025);
     float* unaligned_ptr = aligned_storage.data() + 1;  // 偏移1个元素，破坏对齐
     
-    // 虽然指针未对齐，但函数应该仍然能工作（可能性能较低）
-    // 这测试了函数的鲁棒性，而不是对齐的要求
-    std::vector<float> expected(1024, 5.0f);
-    
-    simd::fill_buffer(unaligned_ptr, 5.0f, 1024);
-    
-    for (size_t i = 0; i < 1024; ++i) {
-        EXPECT_FLOAT_EQ(unaligned_ptr[i], 5.0f);
-    }
+    // 内存必须对齐, 但我们测试未对齐的指针, 这应该抛出异常
+    EXPECT_THROW(simd::fill_buffer(unaligned_ptr, 5.0f, 1024), std::runtime_error);
 }
 
 // ============================================================================