Build OpenMP runtime into Intel SYCL toolchain

Author: allnes

scripts/ci/sycl_x86_setup.py

@@ -136,6 +136,7 @@ def build_linux_native_cpu_toolchain() -> Path:
                 "--cmake-gen",
                 "Ninja",
                 "--use-zstd",
+                "--cmake-opt=-DLLVM_ENABLE_RUNTIMES=compiler-rt;openmp",
                 "-DCMAKE_C_COMPILER=gcc-13",
                 "-DCMAKE_CXX_COMPILER=g++-13",
                 "-DCMAKE_C_COMPILER_LAUNCHER=ccache",
@@ -149,6 +150,7 @@ def build_linux_native_cpu_toolchain() -> Path:
         )
 
     run(["cmake", "--build", str(build_dir), "--target", "sycl-toolchain", "--parallel"])
+    run(["cmake", "--build", str(build_dir), "--target", "install-openmp", "--parallel"])
     run(["cmake", "--build", str(build_dir), "--target", "deploy-sycl-toolchain", "--parallel"])
 
     if not linux_native_cpu_toolchain_ready(toolchain_root):