diff --git a/verif/generator/tosa_utils.py b/verif/generator/tosa_utils.py
index cfe7cc6..4a4f6bb 100644
--- a/verif/generator/tosa_utils.py
+++ b/verif/generator/tosa_utils.py
@@ -164,10 +164,18 @@
     return value
 
 
-def get_accum_dtype_from_tgTypes(dtypes):
-    # Get accumulate data-type from the test generator's defined types
+def get_accum_dtypes_from_tgTypes(dtypes):
+    # Get accumulate data-types from the test generator's defined types
     assert isinstance(dtypes, list) or isinstance(dtypes, tuple)
-    return dtypes[-1]
+    input_dtype = dtypes[0]
+    output_dtype = dtypes[-1]
+    # by default, accum_dtypes contains only output_dtype
+    accum_dtypes = [output_dtype]
+    if input_dtype == DType.FP16 and output_dtype == DType.FP16:
+        accum_dtypes = [DType.FP16, DType.FP32]
+    elif output_dtype == DType.BF16:
+        accum_dtypes = [DType.FP32]
+    return accum_dtypes
 
 
 def get_wrong_output_type(op_name, rng, input_dtype):