IVGCVSW-7749 DTS: Fix reshape floating point exception

  * Updated Opaque Delegate, TfliteParser, OnnxParser, and Deserializer to handle the Zero In Shape edge case

Signed-off-by: Tianle Cheng <tianle.cheng@arm.com>
Change-Id: I4a0d1e72a66de1fa56de99af9b6730a84e0ff596

1 files changed, 19 insertions, 3 deletions

diff --git a/src/armnnOnnxParser/OnnxParser.cpp b/src/armnnOnnxParser/OnnxParser.cpp
index f165df9e14..5ec99ede74 100644
--- a/src/armnnOnnxParser/OnnxParser.cpp
+++ b/src/armnnOnnxParser/OnnxParser.cpp
@@ -441,10 +441,26 @@ TensorInfo ComputeReshapeInfo(const TensorShape& targetShapeTensor,
                             CHECK_LOCATION().AsString()));
         }
 
-        auto targetNumElements = armnn::numeric_cast<unsigned int>(std::accumulate(targetDims.begin(), targetDims.end(),
-            -1, std::multiplies<int32_t>()));
+        auto targetNumElements = armnn::numeric_cast<unsigned int>(
+                std::accumulate(targetDims.begin(), targetDims.end(), -1, std::multiplies<int32_t>()));
         auto stretchIndex = static_cast<size_t>(std::distance(targetDims.begin(), stretchDim));
-        outDims[stretchIndex] = inShape.GetNumElements() / targetNumElements;
+        if (targetNumElements == 0)
+        {
+            if (inShape.GetNumElements() == 0)
+            {
+                outDims[stretchIndex] = 0;
+            }
+            else
+            {
+                throw ParseException(
+                        fmt::format("Input to reshape is a tensor with elements, but the requested shape has 0. {}",
+                                    CHECK_LOCATION().AsString()));
+            }
+        }
+        else
+        {
+            outDims[stretchIndex] = inShape.GetNumElements() / targetNumElements;
+        }
     }
     TensorShape outShape = TensorShape{static_cast<unsigned int>(outDims.size()), outDims.data()};
     return TensorInfo(outShape, dataType);