Revert "Arm backend: Add --enable_debug_mode to AOT compiler (#14145)" (#14174)

This reverts commit 8c51641. Trying to
revert #14111 and this has conflicts.

Author: swolchok

backends/arm/operators/op_abs.py

@@ -73,9 +73,7 @@ def define_node(
             abs_output = output
 
         # Do the INT32 Abs
-        self._serialize_operator(
-            node,
-            tosa_graph,
+        tosa_graph.addOperator(
             ts.TosaOp.Op().ABS,
             [
                 rescaled_inputs[0].name,

backends/arm/operators/op_sum.py

@@ -67,9 +67,7 @@ def define_node(
             dtype=ts.DType.INT32,
         )
 
-        self._serialize_operator(
-            node,
-            tosa_graph,
+        tosa_graph.addOperator(
             ts.TosaOp.Op().REDUCE_SUM,
             [rescaled_inputs[0].name],
             [intermediate.name],
@@ -113,9 +111,7 @@ def define_node(
         attr = ts.TosaSerializerAttribute()
         attr.ReduceSumAttribute(tensor.dim_order.index(dim))
 
-        self._serialize_operator(
-            node,
-            tosa_graph,
+        tosa_graph.addOperator(
             ts.TosaOp.Op().REDUCE_SUM,
             [tensor.name],
             [output.name],

examples/arm/aot_arm_compiler.py

@@ -18,7 +18,6 @@
 
 import torch
 from examples.devtools.scripts.export_bundled_program import save_bundled_program
-from executorch.backends.arm.common.arm_compile_spec import ArmCompileSpec
 from executorch.backends.arm.ethosu import EthosUCompileSpec, EthosUPartitioner
 from executorch.backends.arm.quantizer import (
     EthosUQuantizer,
@@ -387,7 +386,6 @@ def get_compile_spec(
     memory_mode: Optional[str] = None,
     quantize: bool = False,
     config: Optional[str] = None,
-    debug_mode: Optional[str] = None,
 ) -> TosaCompileSpec | EthosUCompileSpec | VgfCompileSpec:
     compile_spec = None
     if target.startswith("TOSA"):
@@ -416,10 +414,6 @@ def get_compile_spec(
     if intermediates is not None:
         compile_spec.dump_intermediate_artifacts_to(intermediates)
 
-    if debug_mode is not None:
-        mode = ArmCompileSpec.DebugMode[debug_mode.upper()]
-        compile_spec.dump_debug_info(mode)
-
     return compile_spec
 
 
@@ -607,12 +601,6 @@ def get_args():
         action="store_true",
         help="Enable the QuantizedOpFusionPass fusion step",
     )
-    parser.add_argument(
-        "--enable_debug_mode",
-        required=False,
-        choices=["json", "tosa"],
-        help="Flag to enable ATen-to-TOSA debug mode.",
-    )
     args = parser.parse_args()
 
     if args.evaluate and (
@@ -747,7 +735,6 @@ def to_edge_TOSA_delegate(
         args.memory_mode,
         args.quantize,
         args.config,
-        args.enable_debug_mode,
     )
 
     model_int8 = None
@@ -789,7 +776,6 @@ def to_edge_no_delegate(exported_program, args, model: torch.nn.Module, example_
             args.memory_mode,
             args.quantize,
             args.config,
-            args.enable_debug_mode,
         )
         model, exported_program = quantize_model(
             args, model, example_inputs, compile_spec
@@ -838,21 +824,12 @@ def transform_for_cortex_m_backend(edge, args):
     exported_program = torch.export.export(
         model, example_inputs, strict=args.strict_export
     )
-
     model = exported_program.module()
     model_fp32 = model
 
-    model_name = os.path.basename(os.path.splitext(args.model_name)[0])
     if args.intermediates:
         os.makedirs(args.intermediates, exist_ok=True)
 
-        # We only support Python3.10 and above, so use a later pickle protocol
-        torch.export.save(
-            exported_program,
-            f"{args.intermediates}/{model_name}_exported_program.pt2",
-            pickle_protocol=5,
-        )
-
     # Quantize if required
     model_int8 = None
     if args.delegate:
@@ -885,6 +862,7 @@ def transform_for_cortex_m_backend(edge, args):
         else:
             raise e
 
+    model_name = os.path.basename(os.path.splitext(args.model_name)[0])
     output_name = f"{model_name}" + (
         f"_arm_delegate_{args.target}"
         if args.delegate is True