add hip-clang dockerfile (#662)

* add dockerfile and update readme

* newline

* create examples dir

* remove cmake line
Co-authored-by: Shucai Xiao <shucai.xiao@amd.com>

examples/Dockerfile.hip-clang

+FROM ubuntu:18.04
+
+ENV DEBIAN_FRONTEND noninteractive
+
+RUN apt-get clean && apt-get update && apt-get install -y locales
+RUN locale-gen en_US.UTF-8
+RUN update-locale LANG=en_US.UTF-8
+ENV LC_ALL C.UTF-8
+ENV LANG C.UTF-8
+
+# Install rocm
+RUN apt-get update && apt-get install -y gnupg2 --no-install-recommends curl && \
+  curl -sL http://repo.radeon.com/rocm/apt/debian/rocm.gpg.key | apt-key add - && \
+  sh -c 'echo deb [arch=amd64] http://repo.radeon.com/rocm/apt/3.7/ xenial main > /etc/apt/sources.list.d/rocm.list'
+
+RUN apt-get update &&\
+    apt-get install -y sudo git bash build-essential cmake rocm-dkms libpython3.6-dev python3-pip miopen-hip rocblas half 
+
+# Install rbuild
+RUN pip3 install https://github.com/RadeonOpenCompute/rbuild/archive/master.tar.gz
+
+# Install MIGraphX from source
+RUN mkdir -p /migraphx
+RUN cd /migraphx && git clone --depth=1 --branch develop https://github.com/ROCmSoftwarePlatform/AMDMIGraphX src
+RUN cd /migraphx && rbuild package --cxx /opt/rocm-3.7.0/llvm/bin/clang++ -d /migraphx/deps -B /migraphx/build -S /migraphx/src/ -DPYTHON_EXECUTABLE=/usr/bin/python3
+RUN dpkg -i /migraphx/build/*.deb
+
+WORKDIR /migraphx

examples/README.md

+# AMD MIGraphX Examples
+
+This directory contains examples of using MIGraphX.
+
+## Building the Dockerfile
+
+You can build the provided dockerfile with the following command:
+
+    docker build -f Dockerfile.hip-clang -t migraphx .
+
+To run the docker image:
+
+    docker run --device='/dev/kfd' --device='/dev/dri' -v=`pwd`:/data -w /data --group-add video -it migraphx