commit 987efaeca438b7a3ef0926edef28a22a5801af9f
author Kshitij Sisodia <kshitij.sisodia@arm.com> Tue Feb 14 16:28:40 2023 +0000
committer Kshitij Sisodia <kshitij.sisodia@arm.com> Thu Feb 16 16:35:36 2023 +0000
tree c2f5cc9600484099a7909374762debfc31557b7d
parent 5cf8e74e702e3d5278c898202cc25b04b812d87a

MLECO-3847: Optimisation flag for TensorFlow Lite Micro

Overriding the default THIRD_PARTY_KERNEL_OPTIMIZATION_LEVEL flag
for comilation of Arm CMSIS-NN library. GNU linker script also
needed to be modified with this change because of increase in
the code footprint.

Change-Id: I65c76fcaf4b6421533086a0905b2e6f0048b46fd
Signed-off-by: Kshitij Sisodia <kshitij.sisodia@arm.com>

scripts/cmake/tensorflow.cmake

diff --git a/scripts/cmake/tensorflow.cmake b/scripts/cmake/tensorflow.cmake
index 29d5bce..ea3b320 100644
--- a/scripts/cmake/tensorflow.cmake
+++ b/scripts/cmake/tensorflow.cmake
@@ -1,5 +1,5 @@
 #----------------------------------------------------------------------------
-#  SPDX-FileCopyrightText: Copyright 2021-2022 Arm Limited and/or its affiliates <open-source-office@arm.com>
+#  SPDX-FileCopyrightText: Copyright 2021-2023 Arm Limited and/or its affiliates <open-source-office@arm.com>
 #  SPDX-License-Identifier: Apache-2.0
 #
 #  Licensed under the Apache License, Version 2.0 (the "License");
@@ -26,8 +26,8 @@
     set(TENSORFLOW_LITE_MICRO_CORE_OPTIMIZATION_LEVEL "-O0")
     set(TENSORFLOW_LITE_MICRO_KERNEL_OPTIMIZATION_LEVEL "-O0")
 elseif (CMAKE_BUILD_TYPE STREQUAL Release)
-    set(TENSORFLOW_LITE_MICRO_CORE_OPTIMIZATION_LEVEL "-O3")
-    set(TENSORFLOW_LITE_MICRO_KERNEL_OPTIMIZATION_LEVEL "-O3")
+    set(TENSORFLOW_LITE_MICRO_CORE_OPTIMIZATION_LEVEL "-Ofast")
+    set(TENSORFLOW_LITE_MICRO_KERNEL_OPTIMIZATION_LEVEL "-Ofast")
 endif()
 
 assert_defined(TENSORFLOW_LITE_MICRO_BUILD_TYPE)
@@ -118,6 +118,7 @@
 
         $<$<BOOL:${TENSORFLOW_LITE_MICRO_CORE_OPTIMIZATION_LEVEL}>:CORE_OPTIMIZATION_LEVEL=${TENSORFLOW_LITE_MICRO_CORE_OPTIMIZATION_LEVEL}>
         $<$<BOOL:${TENSORFLOW_LITE_MICRO_KERNEL_OPTIMIZATION_LEVEL}>:KERNEL_OPTIMIZATION_LEVEL=${TENSORFLOW_LITE_MICRO_KERNEL_OPTIMIZATION_LEVEL}>
+        $<$<BOOL:${TENSORFLOW_LITE_MICRO_KERNEL_OPTIMIZATION_LEVEL}>:THIRD_PARTY_KERNEL_OPTIMIZATION_LEVEL=${TENSORFLOW_LITE_MICRO_KERNEL_OPTIMIZATION_LEVEL}>
         $<$<BOOL:${TENSORFLOW_LITE_MICRO_OPTIMIZED_KERNEL}>:OPTIMIZED_KERNEL_DIR=${TENSORFLOW_LITE_MICRO_OPTIMIZED_KERNEL}>
         $<$<BOOL:${TENSORFLOW_LITE_MICRO_CO_PROCESSOR}>:CO_PROCESSOR=${TENSORFLOW_LITE_MICRO_CO_PROCESSOR}>