commit 3a7d3a70d99cbe22f5e4711d5dbbea2a245da7ed
author Rob Hughes <robert.hughes@arm.com> Tue Sep 24 16:59:56 2019 +0100
committer Áron Virginás-Tar <aron.virginas-tar@arm.com> Fri Sep 27 10:17:26 2019 +0000
tree 445967fa35016374657b5c7e38b2715773a25e02
parent 83239f995e7b86062450794b85bfe4c4c387fda0

NNXSW-1826 Add an optimization step which combines Permute and BatchToSpace into DepthToSpace

This is only possible in some limited cases, but removes an extra
layer from the graph and so should improve performance in all cases.

Change-Id: I7b3e6ba5dacb4fdb816ad270edaecda1436ab4cf
Signed-off-by: Rob Hughes <robert.hughes@arm.com>

src/armnn/Network.cpp

diff --git a/src/armnn/Network.cpp b/src/armnn/Network.cpp
index a668274..cf9a138 100644
--- a/src/armnn/Network.cpp
+++ b/src/armnn/Network.cpp
@@ -818,7 +818,8 @@
                                                 MovePermuteUp(),
                                                 PermuteAsReshape(),
                                                 OptimizeConsecutiveReshapes(),
-                                                FoldPadIntoConvolution2d()));
+                                                FoldPadIntoConvolution2d(),
+                                                PermuteAndBatchToSpaceAsDepthToSpace()));
 
     // Infer the tensor infos for all output slots. Throws an exception on failure
     optGraph.InferTensorInfos();