Merging

llvm/projects/hpvm-tensor-rt/dnn_sources/src/test_ops.cc

...nsor-rt/tensor_runtime/include/approxhpvm_runtime_utils.h

...cts/hpvm-tensor-rt/tensor_runtime/include/configuration.h

...s/hpvm-tensor-rt/tensor_runtime/src/approx_techniques2.cu

...jects/hpvm-tensor-rt/tensor_runtime/src/configuration.cpp

.../hpvm-tensor-rt/tensor_runtime/src/hpvm-rt-controller.cpp

...SC/DNN_Benchmarks/benchmarks/alexnet/src/alexnet_loop.cpp

.../DNN_Benchmarks/benchmarks/alexnet2/src/alexnet2_loop.cpp

.../DNN_Benchmarks/benchmarks/resnet18/src/resnet18_loop.cpp

...marks/benchmarks/vgg16_cifar10/src/vgg16_cifar10_loop.cpp

...rks/benchmarks/vgg16_cifar100/src/vgg16_cifar100_loop.cpp