Support Intel icpx compiler (#360)

* added workflow job for intel icpx compiler

* add compile options for IntelLLVM compilers for testing

* added IntelLLVM compiler to the supported compilers list

* cleanup the workflow jobs for IntelLLVM compiler

.github/workflows/ubuntu.yml

@@ -269,3 +269,32 @@ jobs:
         cmake --build ${{github.workspace}}/build --config ${{matrix.build_type}} -j ${{env.JOBS}}
         cd ${{github.workspace}}/build
         ctest -C ${{matrix.build_type}} --output-on-failure -j ${{env.JOBS}}
+
+  ci_test_icpx:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        build_type: [ Debug, Release ]
+
+    steps:
+    - uses: actions/checkout@v4
+      with:
+        submodules: recursive
+
+    - name: Install Intel oneAPI Base Toolkit
+      run: | # from the official document: https://www.intel.com/content/www/us/en/docs/oneapi/installation-guide-linux/2024-1/apt.html
+        wget -O- https://apt.repos.intel.com/intel-gpg-keys/GPG-PUB-KEY-INTEL-SW-PRODUCTS.PUB | gpg --dearmor | sudo tee /usr/share/keyrings/oneapi-archive-keyring.gpg > /dev/null
+        echo "deb [signed-by=/usr/share/keyrings/oneapi-archive-keyring.gpg] https://apt.repos.intel.com/oneapi all main" | sudo tee /etc/apt/sources.list.d/oneAPI.list
+        sudo apt-get update
+        sudo apt-get install -y intel-basekit
+
+    - name: Configure CMake
+      run: |
+        source /opt/intel/oneapi/setvars.sh
+        cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{matrix.build_type}} -DCMAKE_C_COMPILER=icx -DCMAKE_CXX_COMPILER=icpx -DFK_YAML_BUILD_TEST=ON
+
+    - name: Build
+      run: cmake --build ${{github.workspace}}/build --config ${{matrix.build_type}} -j ${{env.JOBS}}
+
+    - name: Test
+      run: ctest --test-dir ${{github.workspace}}/build -C ${{matrix.build_type}} --output-on-failure -j ${{env.JOBS}}

README.md

@@ -148,6 +148,7 @@ Currently, the following compilers are known to work and used in GitHub Actions
 | GCC 12.3.0                 | [Ubuntu 22.04](https://github.com/actions/runner-images/blob/main/images/ubuntu/Ubuntu2204-Readme.md)          |
 | GCC 13.3.0                 | [Ubuntu 22.04](https://github.com/actions/runner-images/blob/main/images/ubuntu/Ubuntu2204-Readme.md)          |
 | GCC 14.1.0                 | [Ubuntu 22.04](https://github.com/actions/runner-images/blob/main/images/ubuntu/Ubuntu2204-Readme.md)          |
+| IntelLLVM 2024.1.2         | [Ubuntu 22.04](https://github.com/actions/runner-images/blob/main/images/ubuntu/Ubuntu2204-Readme.md)          |
 | MinGW-64 8.1.0             | [Windows Server 2019](https://github.com/actions/runner-images/blob/main/images/windows/Windows2019-Readme.md) |
 | MinGW-64 12.2.0            | [Windows Server 2022](https://github.com/actions/runner-images/blob/main/images/windows/Windows2022-Readme.md) |
 | Visual Studio 16 2019      | [Windows Server 2019](https://github.com/actions/runner-images/blob/main/images/windows/Windows2019-Readme.md) |

docs/mkdocs/docs/home/supported_compilers.md

@@ -46,6 +46,7 @@ Currently, the following compilers are known to work and used in GitHub Actions
 | GCC 12.3.0                 | [Ubuntu 22.04](https://github.com/actions/runner-images/blob/main/images/ubuntu/Ubuntu2204-Readme.md)          |
 | GCC 13.3.0                 | [Ubuntu 22.04](https://github.com/actions/runner-images/blob/main/images/ubuntu/Ubuntu2204-Readme.md)          |
 | GCC 14.1.0                 | [Ubuntu 22.04](https://github.com/actions/runner-images/blob/main/images/ubuntu/Ubuntu2204-Readme.md)          |
+| IntelLLVM 2024.1.2         | [Ubuntu 22.04](https://github.com/actions/runner-images/blob/main/images/ubuntu/Ubuntu2204-Readme.md)          |
 | MinGW-64 8.1.0             | [Windows Server 2019](https://github.com/actions/runner-images/blob/main/images/windows/Windows2019-Readme.md) |
 | MinGW-64 12.2.0            | [Windows Server 2022](https://github.com/actions/runner-images/blob/main/images/windows/Windows2022-Readme.md) |
 | Visual Studio 16 2019      | [Windows Server 2019](https://github.com/actions/runner-images/blob/main/images/windows/Windows2019-Readme.md) |

test/unit_test/CMakeLists.txt

@@ -123,6 +123,24 @@ target_compile_options(
       -Wall -Wextra -Werror -pedantic
       -Wno-c++98-compat -Wno-c++98-compat-pedantic
     >
+    # IntelLLVM
+    $<$<CXX_COMPILER_ID:IntelLLVM>:
+      # IntelLLVM warns the usage of nans and infinities due to its over-estimation.
+      # fkYAML, however, uses them as YAML node values, not as calculation.
+      # To disable too aggressive warnings, `-fp-model=precise` is used in the test as a workaround.
+      -fp-model=precise
+      $<$<CONFIG:Debug>:-O0 -g>
+      $<$<CONFIG:Release>:-O2>
+    >
+)
+
+target_link_options(
+  unit_test_config
+  INTERFACE
+    $<$<CXX_COMPILER_ID:IntelLLVM>:
+      $<$<CONFIG:Debug>:-O0 -g>
+      $<$<CONFIG:Release>:-O2>
+    >
 )
 
 # additional compile options for Clang Sanitizers.