XPU: Build SYCL kernels on Windows

Author: matthewdouglas

.gitattributes

@@ -0,0 +1 @@
+*.bat text eol=crlf

.github/scripts/build-xpu-windows.bat

@@ -0,0 +1,27 @@
+
+set INTEL_DLE_URL=https://registrationcenter-download.intel.com/akdlm/IRC_NAS/75d4eb97-914a-4a95-852c-7b9733d80f74/intel-deep-learning-essentials-2025.1.3.8_offline.exe
+
+curl -o intel-dle-installer.exe %INTEL_DLE_URL%
+start /wait "Intel DLE Install" intel-dle-installer.exe --eula=accept --silent
+if ERRORLEVEL 1 (
+    echo Failed to install Intel Deep Learning Essentials
+    exit /b 1
+)
+
+call %ProgramFiles(x86)%\Intel\oneAPI\setvars.bat
+if ERRORLEVEL 1 (
+    echo Failed to setup environment
+    exit /b 1
+)
+
+cmake -G Ninja -DCOMPUTE_BACKEND=xpu -DCMAKE_BUILD_TYPE=Release .
+cmake --build . --config Release
+
+if ERRORLEVEL 1 (
+    echo Build failed
+    exit /b 1
+)
+
+set output_dir=output\%build_os%\x86_64
+if not exist "%output_dir%" mkdir "%output_dir%"
+copy bitsandbytes\*.dll "%output_dir%\" 2>nul

.github/workflows/python-package.yml

@@ -110,14 +110,20 @@ jobs:
   build-xpu:
     strategy:
       matrix:
-        os: [ubuntu-22.04]
+        os: [ubuntu-22.04, windows-2025]
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v4
-      - name: Build C++
+      - name: Build C++ (Linux)
+        if: runner.os == 'Linux'
         run: bash .github/scripts/build-xpu.sh
         env:
           build_os: ${{ matrix.os }}
+      - name: Build C++ (Windows)
+        if: runner.os == 'Windows'
+        run: .github/scripts/build-xpu-windows.bat
+        env:
+          build_os: ${{ matrix.os }}
       - name: Upload build artifact
         uses: actions/upload-artifact@v4
         with: