diff --git a/mindspore/lite/nnacl/fp32/topk.c b/mindspore/lite/nnacl/fp32/topk.c
index a8b13f3e38..96b3b05e46 100644
--- a/mindspore/lite/nnacl/fp32/topk.c
+++ b/mindspore/lite/nnacl/fp32/topk.c
@@ -16,9 +16,27 @@
 
 #include "nnacl/fp32/topk.h"
 
-int DescendCmp(const void *a, const void *b) { return ((const TopkNode *)b)->element - ((const TopkNode *)a)->element; }
+int DescendCmp(const void *a, const void *b) {
+  float sub = ((const TopkNode *)b)->element - ((const TopkNode *)a)->element;
+  if (sub > 0) {
+    return 1;
+  } else if (sub < 0) {
+    return -1;
+  } else {
+    return 0;
+  }
+}
 
-int AscendCmp(const void *a, const void *b) { return ((const TopkNode *)a)->element - ((const TopkNode *)b)->element; }
+int AscendCmp(const void *a, const void *b) {
+  float sub = ((const TopkNode *)a)->element - ((const TopkNode *)b)->element;
+  if (sub > 0) {
+    return 1;
+  } else if (sub < 0) {
+    return -1;
+  } else {
+    return 0;
+  }
+}
 
 void Topk(float *input_data, float *output_data, int32_t *output_index, TopkParameter *parameter) {
   int last_dim_size = parameter->last_dim_size_;
diff --git a/mindspore/lite/src/runtime/kernel/arm/fp16/arithmetic_fp16.cc b/mindspore/lite/src/runtime/kernel/arm/fp16/arithmetic_fp16.cc
index f7da12b275..7cb45b00f0 100644
--- a/mindspore/lite/src/runtime/kernel/arm/fp16/arithmetic_fp16.cc
+++ b/mindspore/lite/src/runtime/kernel/arm/fp16/arithmetic_fp16.cc
@@ -441,21 +441,21 @@ kernel::LiteKernel *CpuArithmeticFp16KernelCreator(const std::vector<lite::tenso
   return kernel;
 }
 
-REG_KERNEL(kCPU, kNumberTypeFloat16, PrimitiveType_Mul, CpuArithmeticFp16KernelCreator)
-REG_KERNEL(kCPU, kNumberTypeFloat16, PrimitiveType_Add, CpuArithmeticFp16KernelCreator)
-REG_KERNEL(kCPU, kNumberTypeFloat16, PrimitiveType_Sub, CpuArithmeticFp16KernelCreator)
-REG_KERNEL(kCPU, kNumberTypeFloat16, PrimitiveType_Div, CpuArithmeticFp16KernelCreator)
-REG_KERNEL(kCPU, kNumberTypeFloat16, PrimitiveType_FloorMod, CpuArithmeticFp16KernelCreator)
-REG_KERNEL(kCPU, kNumberTypeFloat16, PrimitiveType_FloorDiv, CpuArithmeticFp16KernelCreator)
-REG_KERNEL(kCPU, kNumberTypeFloat16, PrimitiveType_LogicalAnd, CpuArithmeticFp16KernelCreator)
-REG_KERNEL(kCPU, kNumberTypeFloat16, PrimitiveType_LogicalOr, CpuArithmeticFp16KernelCreator)
-REG_KERNEL(kCPU, kNumberTypeFloat16, PrimitiveType_Maximum, CpuArithmeticFp16KernelCreator)
-REG_KERNEL(kCPU, kNumberTypeFloat16, PrimitiveType_Minimum, CpuArithmeticFp16KernelCreator)
-REG_KERNEL(kCPU, kNumberTypeFloat16, PrimitiveType_NotEqual, CpuArithmeticFp16KernelCreator)
-REG_KERNEL(kCPU, kNumberTypeFloat16, PrimitiveType_Equal, CpuArithmeticFp16KernelCreator)
-REG_KERNEL(kCPU, kNumberTypeFloat16, PrimitiveType_Less, CpuArithmeticFp16KernelCreator)
-REG_KERNEL(kCPU, kNumberTypeFloat16, PrimitiveType_LessEqual, CpuArithmeticFp16KernelCreator)
-REG_KERNEL(kCPU, kNumberTypeFloat16, PrimitiveType_Greater, CpuArithmeticFp16KernelCreator)
-REG_KERNEL(kCPU, kNumberTypeFloat16, PrimitiveType_GreaterEqual, CpuArithmeticFp16KernelCreator)
-REG_KERNEL(kCPU, kNumberTypeFloat16, PrimitiveType_Eltwise, CpuArithmeticFp16KernelCreator)
+// REG_KERNEL(kCPU, kNumberTypeFloat16, PrimitiveType_Mul, CpuArithmeticFp16KernelCreator)
+// REG_KERNEL(kCPU, kNumberTypeFloat16, PrimitiveType_Add, CpuArithmeticFp16KernelCreator)
+// REG_KERNEL(kCPU, kNumberTypeFloat16, PrimitiveType_Sub, CpuArithmeticFp16KernelCreator)
+// REG_KERNEL(kCPU, kNumberTypeFloat16, PrimitiveType_Div, CpuArithmeticFp16KernelCreator)
+// REG_KERNEL(kCPU, kNumberTypeFloat16, PrimitiveType_FloorMod, CpuArithmeticFp16KernelCreator)
+// REG_KERNEL(kCPU, kNumberTypeFloat16, PrimitiveType_FloorDiv, CpuArithmeticFp16KernelCreator)
+// REG_KERNEL(kCPU, kNumberTypeFloat16, PrimitiveType_LogicalAnd, CpuArithmeticFp16KernelCreator)
+// REG_KERNEL(kCPU, kNumberTypeFloat16, PrimitiveType_LogicalOr, CpuArithmeticFp16KernelCreator)
+// REG_KERNEL(kCPU, kNumberTypeFloat16, PrimitiveType_Maximum, CpuArithmeticFp16KernelCreator)
+// REG_KERNEL(kCPU, kNumberTypeFloat16, PrimitiveType_Minimum, CpuArithmeticFp16KernelCreator)
+// REG_KERNEL(kCPU, kNumberTypeFloat16, PrimitiveType_NotEqual, CpuArithmeticFp16KernelCreator)
+// REG_KERNEL(kCPU, kNumberTypeFloat16, PrimitiveType_Equal, CpuArithmeticFp16KernelCreator)
+// REG_KERNEL(kCPU, kNumberTypeFloat16, PrimitiveType_Less, CpuArithmeticFp16KernelCreator)
+// REG_KERNEL(kCPU, kNumberTypeFloat16, PrimitiveType_LessEqual, CpuArithmeticFp16KernelCreator)
+// REG_KERNEL(kCPU, kNumberTypeFloat16, PrimitiveType_Greater, CpuArithmeticFp16KernelCreator)
+// REG_KERNEL(kCPU, kNumberTypeFloat16, PrimitiveType_GreaterEqual, CpuArithmeticFp16KernelCreator)
+// REG_KERNEL(kCPU, kNumberTypeFloat16, PrimitiveType_Eltwise, CpuArithmeticFp16KernelCreator)
 }  // namespace mindspore::kernel