[Code Generation - IP] Fixed bug in no activation case (Pragma for thresholds)

src/finn/custom_op/fpgadataflow/streamingfclayer_batch.py

@@ -523,11 +523,13 @@ class StreamingFCLayer_Batch(HLSCustomOp):
             """DO_PRAGMA(HLS ARRAY_PARTITION
             variable=weights complete dim=2)"""
         )
-        self.code_gen_dict["$PRAGMAS$"].append(
-            """DO_PRAGMA(HLS ARRAY_PARTITION
-            variable=threshs complete dim=1)"""
-        )
-        self.code_gen_dict["$PRAGMAS$"].append(
-            """DO_PRAGMA(HLS ARRAY_PARTITION
-            variable=threshs complete dim=3)"""
-        )
+        if self.calc_tmem() != 0:
+            # TODO find a better way of checking for no pregenerated thresholds
+            self.code_gen_dict["$PRAGMAS$"].append(
+                """DO_PRAGMA(HLS ARRAY_PARTITION
+                variable=threshs complete dim=1)"""
+            )
+            self.code_gen_dict["$PRAGMAS$"].append(
+                """DO_PRAGMA(HLS ARRAY_PARTITION
+                variable=threshs complete dim=3)"""
+            )