Remove redundant generate_*_compile_spec funcs (#3869)

Summary:
tidying up a redundant wrapper function.

Pull Request resolved: #3869

Reviewed By: mergennachin

Differential Revision: D58301772

Pulled By: digantdesai

fbshipit-source-id: cd906e2aa307408e7e2f877ace6544e91cd972fc

Author: robell

backends/arm/arm_backend.py

@@ -166,43 +166,6 @@ def get_intermediate_path(compile_spec: List[CompileSpec]) -> str:
     return None
 
 
-def generate_ethosu_compile_spec(
-    config: str,
-    permute_memory_to_nhwc: Optional[bool] = None,
-    quantize_io: Optional[bool] = None,
-    system_config: Optional[str] = None,
-    memory_mode: Optional[str] = None,
-    extra_flags: Optional[str] = None,
-    config_ini: Optional[str] = "Arm/vela.ini",
-) -> List[CompileSpec]:
-    return (
-        ArmCompileSpecBuilder()
-        .ethosu_compile_spec(
-            config,
-            system_config=system_config,
-            memory_mode=memory_mode,
-            extra_flags=extra_flags,
-            config_ini=config_ini,
-        )
-        .set_permute_memory_format(permute_memory_to_nhwc)
-        .set_quantize_io(quantize_io)
-        .build()
-    )
-
-
-def generate_tosa_compile_spec(
-    permute_memory_to_nhwc: Optional[bool] = None,
-    output_path: Optional[str] = None,
-) -> List[CompileSpec]:
-    return (
-        ArmCompileSpecBuilder()
-        .tosa_compile_spec()
-        .set_permute_memory_format(permute_memory_to_nhwc)
-        .dump_intermediate_artifacts_to(output_path)
-        .build()
-    )
-
-
 @final
 class ArmBackend(BackendDetails):
     @staticmethod

examples/arm/aot_arm_compiler.py

@@ -11,7 +11,8 @@
 import logging
 
 import torch
-from executorch.backends.arm.arm_backend import generate_ethosu_compile_spec
+
+from executorch.backends.arm.arm_backend import ArmCompileSpecBuilder
 from executorch.backends.arm.arm_partitioner import ArmPartitioner
 from executorch.backends.arm.quantizer.arm_quantizer import (
     ArmQuantizer,
@@ -212,12 +213,13 @@ def forward(self, x):
     if args.delegate is True:
         edge = edge.to_backend(
             ArmPartitioner(
-                generate_ethosu_compile_spec(
-                    "ethos-u55-128",
-                    permute_memory_to_nhwc=args.model_name
-                    in MODEL_NAME_TO_MODEL.keys(),
-                    quantize_io=True,
+                ArmCompileSpecBuilder()
+                .ethosu_compile_spec("ethos-u55-128")
+                .set_permute_memory_format(
+                    args.model_name in MODEL_NAME_TO_MODEL.keys()
                 )
+                .set_quantize_io(True)
+                .build()
             )
         )
         logging.debug(f"Lowered graph:\n{edge.exported_program().graph}")