[CI] add ci pipeline

.github/workflows/compile_workspace.yml

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+# This is a basic workflow to help you get started with Actions
+
+name: CI
+
+# Controls when the workflow will run
+on:
+  # Triggers the workflow on push or pull request events but only for the "main" branch
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+# A workflow run is made up of one or more jobs that can run sequentially or in parallel
+jobs:
+
+  opensycl-linux:
+    uses: ./.github/workflows/linux-opensycl.yml
+    with:
+      clang: ${{ matrix.clang }}
+      os: ${{ matrix.os }}
+      cuda: ${{ matrix.cuda }}
+      rocm: ${{ matrix.rocm }}
+    strategy:
+      matrix:
+        clang: [15]
+        os: [ubuntu-22.04]
+        cuda: [11.0.2]
+        rocm: [5.4.3]
+
+  opensycl-macos:
+    uses: ./.github/workflows/macos-opensycl.yml
+    with:
+      os: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [macos-latest]
+

.github/workflows/linux-opensycl.yml

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+name: OpenSYCL linux pipeline
+
+on:
+  workflow_call:
+    inputs:
+      clang:
+        required: true
+        type: string
+      os:
+        required: true
+        type: string
+      cuda:
+        required: true
+        type: string
+      rocm:
+        required: true
+        type: string
+
+
+
+jobs:
+
+  cache_opensycl:
+    name: cache opensycl
+    runs-on: ${{ inputs.os }}
+
+    steps:
+
+      - uses: actions/checkout@v3
+
+      - name: clone OpenSycl
+        run: git submodule update --init sycl_compiler_gits/opensycl 
+
+      - name: install boost
+        run: sudo apt install libboost-all-dev
+
+      # cp from opensycl ci 
+      - name: install Level Zero
+        run : |
+          wget https://github.com/oneapi-src/level-zero/releases/download/v1.2.3/level-zero-devel_1.2.3+u18.04_amd64.deb
+          wget https://github.com/oneapi-src/level-zero/releases/download/v1.2.3/level-zero_1.2.3+u18.04_amd64.deb
+          sudo dpkg -i ./level-zero*
+
+      - name: install CUDA
+        run: |
+          mkdir -p /opt/OpenSYCL/cuda
+          wget -q -O cuda.sh http://developer.download.nvidia.com/compute/cuda/11.0.2/local_installers/cuda_11.0.2_450.51.05_linux.run
+          sudo sh ./cuda.sh --override --silent --toolkit --no-man-page --no-drm --no-opengl-libs --installpath=/opt/OpenSYCL/cuda || true
+          echo "CUDA Version ${{inputs.cuda}}" | sudo tee /opt/OpenSYCL/cuda/version.txt
+
+      - name: install ROCm
+        run: |
+          [[ ${{inputs.rocm}} == 4.0.1 ]] && CODENAME=xenial
+          [[ ${{inputs.rocm}} == 5.4.3 ]] && CODENAME=focal
+          sudo apt install libnuma-dev cmake unzip
+          wget -q -O - https://repo.radeon.com/rocm/rocm.gpg.key | sudo apt-key add -
+          echo "deb [arch=amd64] https://repo.radeon.com/rocm/apt/${{inputs.rocm}} $CODENAME main" | sudo tee /etc/apt/sources.list.d/rocm.list
+          printf 'Package: *\nPin: release o=repo.radeon.com\nPin-Priority: 600' | sudo tee /etc/apt/preferences.d/rocm-pin-600
+          sudo apt update
+          sudo apt install rocm-dev
+
+      - name: install LLVM
+        run: |
+          wget https://apt.llvm.org/llvm.sh
+          chmod +x llvm.sh
+          sudo ./llvm.sh ${{inputs.clang}}
+          sudo apt install libclang-${{inputs.clang}}-dev clang-tools-${{inputs.clang}} libomp-${{inputs.clang}}-dev
+
+      - name: install Ninja-build
+        run: sudo apt install ninja-build
+
+
+      - name: configure & install OpenSycl
+        run: |
+          cd sycl_compiler_gits/opensycl
+          cmake -DCMAKE_CXX_COMPILER=/usr/bin/clang++-${{inputs.clang}} -DCLANG_EXECUTABLE_PATH=/usr/bin/clang++-${{inputs.clang}} -DLLVM_DIR=/usr/lib/llvm-${{inputs.clang}}/cmake -DCMAKE_INSTALL_PREFIX=../../sycl_compilers/opensycl .
+          make -j install
+
+      - name: 'Tar opensycl'
+        run: tar -cvf opensycl.tar sycl_compilers/opensycl
+
+      - name: 'Upload Artifact'
+        uses: actions/upload-artifact@v3
+        with:
+          name: OpenSYCL_compiler-${{ inputs.clang }}-${{ inputs.os }}-${{inputs.cuda}}-${{inputs.rocm}}
+          path: opensycl.tar  

.github/workflows/macos-opensycl.yml

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+name: OpenSYCL linux pipeline
+
+on:
+  workflow_call:
+    inputs:
+      os:
+        required: true
+        type: string
+
+
+
+jobs:
+
+  cache_opensycl:
+    name: cache opensycl
+    runs-on: ${{ inputs.os }}
+
+    steps:
+
+      - uses: actions/checkout@v3
+
+      - name: clone OpenSycl
+        run: git submodule update --init sycl_compiler_gits/opensycl 
+
+      # see opensycl workflow for steps
+      - name: install dependencies
+        run: |
+          set +e
+          brew update
+          brew install cmake
+          brew install libomp
+          brew install boost
+          set -e
+
+      - name: configure & install OpenSycl
+        run: |
+          cd sycl_compiler_gits/opensycl
+
+          OMP_ROOT=`brew list libomp | grep libomp.a | sed -E "s/\/lib\/.*//"`
+          echo "OMP_ROOT=${OMP_ROOT}" >> $GITHUB_ENV
+
+          cmake -DOpenMP_ROOT=$OMP_ROOT -DCMAKE_INSTALL_PREFIX=../../sycl_compilers/opensycl .
+          make -j install
+
+      - name: 'Tar opensycl'
+        run: tar -cvf opensycl.tar sycl_compilers/opensycl
+
+      - name: 'Upload Artifact'
+        uses: actions/upload-artifact@v3
+        with:
+          name: OpenSYCL_compiler-${{ inputs.os }}
+          path: opensycl.tar