[Refactor] reflect finn-base refactor for hls utils

src/finn/custom_op/fpgadataflow/hlscustomop.py

@@ -38,11 +38,11 @@ from finn.util.basic import (
     roundup_to_integer_multiple,
     get_rtlsim_trace_depth,
 )
-from finn.util.fpgadataflow import (
-    IPGenBuilder,
+from finn.util.pyverilator import (
     pyverilate_get_liveness_threshold_cycles,
     rtlsim_multi_io,
 )
+from finn.util.hls import CallHLS
 from . import templates
 
 try:
@@ -309,11 +309,10 @@ class HLSCustomOp(CustomOp):
         return []
 
     def ipgen_singlenode_code(self):
-        """Builds the bash script for ip generation using the IPGenBuilder from
-        finn.util.fpgadataflow."""
+        """Builds the bash script for IP generation using the CallHLS utility."""
         node = self.onnx_node
         code_gen_dir = self.get_nodeattr("code_gen_dir_ipgen")
-        builder = IPGenBuilder()
+        builder = CallHLS()
         builder.append_tcl(code_gen_dir + "/hls_syn_{}.tcl".format(node.name))
         builder.set_ipgen_path(code_gen_dir + "/project_{}".format(node.name))
         builder.build(code_gen_dir)