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

llvm/projects/hpvm-tensor-rt/bin/extractQuantRange.py

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

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

...hpvm-tensor-rt/dnn_sources/src/promise/alexnet_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

...projects/hpvm-tensor-rt/opentuner/autotuner/algo_tuner.py