Fix regression for onnx export with caffe2 builds

pytorch · Oct 31, 2022 · 4379d65 · 4379d65
1 parent ccdd1c1
commit 4379d65
Showing 1 changed file with 10 additions and 14 deletions.
diff --git a/torch/onnx/utils.py b/torch/onnx/utils.py
@@ -1739,17 +1739,22 @@ def _add_output_to_block(block: _C.Block, value: _C.Value) -> int:
 
 @_beartype.beartype
 def _should_aten_fallback(
-    name: str,
-    opset_version: int,
-    operator_export_type: _C_onnx.OperatorExportTypes,
+    name: str, opset_version: int, operator_export_type: _C_onnx.OperatorExportTypes
 ):
+    # For BUILD_CAFFE2=0 builds, if domain=="aten" and operator_export_type==ONNX_ATEN,
+    #   an aten::ATen operator is created regardless of symbolics existence
+    # For BUILD_CAFFE2=1, the same applies only if there is no symbolic available
+
     is_exportable_aten_op = registration.registry.is_registered_op(name, opset_version)
     is_onnx_aten_export = operator_export_type == _C_onnx.OperatorExportTypes.ONNX_ATEN
     is_aten_fallback_export = (
         operator_export_type == _C_onnx.OperatorExportTypes.ONNX_ATEN_FALLBACK
     )
+    is_caffe2_build = _C_onnx._CAFFE2_ATEN_FALLBACK
+
     return name.startswith("aten::") and (
-        is_onnx_aten_export or (not is_exportable_aten_op and is_aten_fallback_export)
+        (is_onnx_aten_export and not is_caffe2_build)
+        or (not is_exportable_aten_op and is_aten_fallback_export)
     )
 
 
@@ -1845,16 +1850,7 @@ def _run_symbolic_function(
     )
 
     # Direct ATen export requested
-    # For BUILD_CAFFE2=0 builds, if domain=="aten" and operator_export_type==ONNX_ATEN,
-    #   an aten::ATen operator is created regardless of symbolics existence
-    # For BUILD_CAFFE2=1, the same applies only if there is no symbolic available
-    if (
-        _C_onnx._CAFFE2_ATEN_FALLBACK
-        and not registration.registry.is_registered_op(ns_op_name, opset_version)
-    ) or (
-        not _C_onnx._CAFFE2_ATEN_FALLBACK
-        and _should_aten_fallback(ns_op_name, opset_version, operator_export_type)
-    ):
+    if _should_aten_fallback(ns_op_name, opset_version, operator_export_type):
         attrs = {
             k + "_" + node.kindOf(k)[0]: symbolic_helper._node_get(node, k)
             for k in node.attributeNames()