adds utility to dpctl.program

Author: ndgrigorian

dpctl/_backend.pxd

@@ -484,6 +484,8 @@ cdef extern from "syclinterface/dpctl_sycl_kernel_bundle_interface.h":
     cdef void DPCTLKernelBuildLog_Delete(DPCTLKernelBuildLogRef Ref)
     cdef const char *DPCTLKernelBuildLog_Get(DPCTLKernelBuildLogRef)
 
+    cdef bool DPCTLKernelBundle_CreateFromSYCLSource_Available()
+
     cdef DPCTLSyclKernelBundleRef DPCTLKernelBundle_CreateFromSYCLSource(
         const DPCTLSyclContextRef Ctx,
         const DPCTLSyclDeviceRef Dev,

dpctl/program/__init__.py

@@ -30,6 +30,7 @@
     create_program_from_source,
     create_program_from_spirv,
     create_program_from_sycl_source,
+    is_sycl_source_compilation_available,
 )
 
 __all__ = [
@@ -38,6 +39,7 @@
     "create_program_from_source",
     "create_program_from_spirv",
     "create_program_from_sycl_source",
+    "is_sycl_source_compilation_available",
     "SyclKernel",
     "SyclKernelBundle",
     "SyclKernelBundleCompilationError",

dpctl/program/_program.pyx

@@ -53,6 +53,7 @@ from dpctl._backend cimport (  # noqa: E211, E402;
     DPCTLKernelBundle_CreateFromOCLSource,
     DPCTLKernelBundle_CreateFromSpirv,
     DPCTLKernelBundle_CreateFromSYCLSource,
+    DPCTLKernelBundle_CreateFromSYCLSource_Available,
     DPCTLKernelBundle_Delete,
     DPCTLKernelBundle_GetKernel,
     DPCTLKernelBundle_GetSyclKernel,
@@ -75,6 +76,7 @@ from dpctl._backend cimport (  # noqa: E211, E402;
 __all__ = [
     "create_kernel_bundle_from_source",
     "create_kernel_bundle_from_spirv",
+    "is_sycl_source_compilation_available",
     "SyclKernel",
     "SyclKernelBundle",
     "SyclKernelBundleCompilationError",
@@ -87,6 +89,17 @@ cdef class SyclKernelBundleCompilationError(Exception):
     pass
 
 
+cpdef bint is_sycl_source_compilation_available():
+    """Returns True if dpctl was built with compiler that supports the DPC++
+       `kernel_compiler` extension API used by
+       :func:`create_program_from_sycl_source`.
+
+       Device support is separate; callers should also check
+       ``q.sycl_device.can_compile('sycl')`` (or similar) for specific devices.
+    """
+    return DPCTLKernelBundle_CreateFromSYCLSource_Available()
+
+
 cdef class SyclKernel:
     """
     """

libsyclinterface/source/dpctl_sycl_kernel_bundle_interface.cpp

@@ -866,6 +866,15 @@ namespace syclex = sycl::ext::oneapi::experimental;
 #endif
 #endif
 
+bool DPCTLKernelBundle_CreateFromSYCLSource_Available()
+{
+#if (SUPPORTS_SYCL_COMPILATION > 0)
+    return true;
+#else
+    return false;
+#endif
+}
+
 #if (SUPPORTS_SYCL_COMPILATION > 0)
 // The property for registering names was renamed between DPC++ versions 2025.1
 // and 2025.2. The original name was `registered_kernel_names`, the new name is