🐛 [Bug] Encountered bug when compiling `fasterrcnn_mobilenet_v3_large_320_fpn` in Dynamo

[gs-olive]

Bug Description

When compiling the fasterrcnn_mobilenet_v3_large_320_fpn with torch_tensorrt.dynamo.compile, the following error is encountered:

[06/07/2023-16:56:55] [TRT] [W] IElementWiseLayer with inputs (Unnamed Layer* 7) [Shuffle]_output and (Unnamed Layer* 6) [Shuffle]_output: first input has type Int32 but second input has type Float.
[06/07/2023-16:56:55] [TRT] [W] IElementWiseLayer with inputs (Unnamed Layer* 8) [Shuffle]_output and (Unnamed Layer* 0) [Shuffle]_output: first input has type Int32 but second input has type Float.
[06/07/2023-16:56:55] [TRT] [W] IElementWiseLayer with inputs (Unnamed Layer* 9) [Shuffle]_output and (Unnamed Layer* 4) [Shuffle]_output: first input has type Int32 but second input has type Float.
[06/07/2023-16:56:55] [TRT] [E] 4: [elementWiseLayer.cpp::validate::36] Error Code 4: Internal Error ([ELEMENTWISE]-[unknown_ir_ops.add.Tensor]-[add]: operation SUM has incompatible input types Int32 and Float)
[06/07/2023-16:56:55] [TRT] [E] 4: [elementWiseLayer.cpp::validate::36] Error Code 4: Internal Error ([ELEMENTWISE]-[unknown_ir_ops.add.Tensor]-[add_2]: operation SUM has incompatible input types Int32 and Float)
INFO:torch_tensorrt.fx.fx2trt:TRT INetwork construction elapsed time: 0:00:00.099711
[06/07/2023-16:56:55] [TRT] [E] 4: [graphShapeAnalyzer.cpp::needTypeAndDimensions::2212] Error Code 4: Internal Error ([ELEMENTWISE]-[unknown_ir_ops.add.Tensor]-[add]: output shape can not be computed)
[06/07/2023-16:56:55] [TRT] [E] 4: [elementWiseLayer.cpp::validate::36] Error Code 4: Internal Error ([ELEMENTWISE]-[unknown_ir_ops.add.Tensor]-[add]: operation SUM has incompatible input types Int32 and Float)

To Reproduce

Steps to reproduce the behavior:

model = torchvision.models.detection.fasterrcnn_mobilenet_v3_large_320_fpn().eval().cuda()
inp = torch.rand((3, 300, 400)).cuda()
inp2 = torch.rand((3, 500, 400)).cuda()
model_acc = torch_tensorrt.dynamo.compile(model, [inp, inp2], pass_through_build_failures=True)

Expected behavior

Model should compile without errors.

Environment

• Torch-TensorRT Version (e.g. 1.0.0): 075a028
• PyTorch Version (e.g. 1.0): 2.1.0.dev20230606+cu118

Additional context

Related: #1565

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[gs-olive]

Fixed in #2070