[UR] [OPENCL] sycl-ls fails to show other targets and errors if no OpenCL driver #18075
Description
Describe the bug
If we try sycl-ls where we have no OpenCL driver e.g. not setting OCL_ICD_FILENAMES, then it errors out with
SYCL Exception encountered: Native API failed. Native API returns: 4 (UR_RESULT_ERROR_INVALID_VALUE), despite there being a native cpu driver (dpc++ built with --native_cpu -DNATIVECPU_USE_OCK=ON). Deleting libur_adapter_opencl* then allows it to find the native cpu driver.
This appears to be due to #17572
To reproduce
Build dpc++ with --native_cpu -DNATIVECPU_USE_OCK=ON
use an OpenCL ICD but not opencl driver
sycl-ls
Environment
- OS: Shown on linux
- Target device and vendor: native_cpu
- DPC++ version: tip or any beyond [UR] Add handles to opencl adapter #17572
- Dependencies version: [e.g. the output of
sycl-ls --verbose]
Additional context
No response