Use oneAPI compiler for Linux SYCL CI

Author: allnes

scripts/ci/sycl_x86_setup.py

@@ -94,7 +94,16 @@ def setup_linux_runtime() -> None:
         ),
     )
     run(["sudo", "apt-get", "update"])
-    run(["sudo", "apt-get", "install", "-y", "intel-oneapi-runtime-opencl"])
+    run(
+        [
+            "sudo",
+            "apt-get",
+            "install",
+            "-y",
+            "intel-oneapi-compiler-dpcpp-cpp",
+            "intel-oneapi-runtime-opencl",
+        ]
+    )
 
     write_env("ITLABAI_GCC_INSTALL_DIR", "/usr/lib/gcc/x86_64-linux-gnu/13")
 
@@ -186,12 +195,34 @@ def setup_windows_compilers(sycl_root: Path) -> None:
 
 
 def setup_unix_compilers(sycl_root: Path) -> None:
-    cc_path = find_first_existing([sycl_root / "bin" / "icx", sycl_root / "bin" / "clang"])
-    cxx_path = find_first_existing([sycl_root / "bin" / "icpx", sycl_root / "bin" / "clang++"])
+    cc_candidates = [sycl_root / "bin" / "icx", sycl_root / "bin" / "clang"]
+    cxx_candidates = [sycl_root / "bin" / "icpx", sycl_root / "bin" / "clang++"]
+    prefix_paths = [sycl_root]
+
+    if require_env("RUNNER_OS") == "Linux":
+        compiler_root = Path("/opt/intel/oneapi/compiler/latest")
+        cc_candidates = [
+            compiler_root / "bin" / "compiler" / "icx",
+            compiler_root / "bin" / "compiler" / "clang",
+            *cc_candidates,
+        ]
+        cxx_candidates = [
+            compiler_root / "bin" / "compiler" / "icpx",
+            compiler_root / "bin" / "compiler" / "clang++",
+            *cxx_candidates,
+        ]
+        prefix_paths = [compiler_root, sycl_root]
+
+    cc_path = find_first_existing(cc_candidates)
+    cxx_path = find_first_existing(cxx_candidates)
 
     write_env("ITLABAI_CC", str(cc_path))
     write_env("ITLABAI_CXX", str(cxx_path))
-    write_env("ITLABAI_CMAKE_PREFIX_PATH", str(sycl_root))
+    write_env(
+        "ITLABAI_CMAKE_PREFIX_PATH",
+        ":".join(str(path) for path in prefix_paths if path.exists()),
+    )
+    append_path(str(cc_path.parent))
     append_path(str(sycl_root / "bin"))
 
     if require_env("RUNNER_OS") == "Linux":