Merge branch 'approx_hpvm' of https://gitlab.engr.illinois.edu/llvm/hpvm into approx_hpvm

llvm/projects/hpvm-tensor-rt/bin/tuner_src/benchmarks.py

llvm/projects/hpvm-tensor-rt/bin/tuner_src/buildRtConfig.py

llvm/projects/hpvm-tensor-rt/bin/tuner_src/run_autotuner.py

llvm/projects/hpvm-tensor-rt/bin/tuner_src/validation.py

...pvm-tensor-rt/dnn_sources/src/promise/alexnet2_promise.cc

...hpvm-tensor-rt/dnn_sources/src/promise/alexnet_promise.cc

...s/hpvm-tensor-rt/dnn_sources/src/promise/lenet_promise.cc

...vm-tensor-rt/dnn_sources/src/promise/mobilenet_promise.cc

...r-rt/dnn_sources/src/promise/mobilenet_shallow_promise.cc

...pvm-tensor-rt/dnn_sources/src/promise/resnet18_promise.cc

...nsor-rt/dnn_sources/src/promise/vgg16_cifar100_promise.cc

...ensor-rt/dnn_sources/src/promise/vgg16_cifar10_promise.cc

...ojects/hpvm-tensor-rt/model_params/lenet_params/input.bin

...jects/hpvm-tensor-rt/model_params/lenet_params/labels.bin

...ojects/hpvm-tensor-rt/tensor_runtime/include/approx_api.h

...pvm-tensor-rt/tensor_runtime/include/approx_techniques2.h

...-rt/tensor_runtime/include/approxhpvm_img_runtime_utils.h

...pvm-tensor-rt/tensor_runtime/include/img_tensor_runtime.h

...ts/hpvm-tensor-rt/tensor_runtime/include/tensor_runtime.h

...s/hpvm-tensor-rt/tensor_runtime/src/img_tensor_runtime.cu