[SYCL][COMPAT] Add get_error_string_dummy() function

[zhiweij1]

Signed-off-by: Jiang, Zhiwei zhiwei.jiang@intel.com

[tomflinda]

LGTM

[zhimingwang36]

LGTM

[joeatodd]

Thanks for this @zhiweij1! I have just made one small suggestion about the comments.

[zhiweij1]

Hi @joeatodd, it seems the CI failure is not related to this PR. The failures are not compile fail. Can this PR be merged?

********************
Expectedly Failed Tests (1):
  SYCL :: VirtualFunctions/misc/group-barrier.cpp

********************
Failed Tests (2):
  SYCL :: syclcompat/memory/usm_allocations.cpp
  SYCL :: syclcompat/util/util_shift_sub_group_right.cpp


Testing Time: 2556.64s

Total Discovered Tests: 2212
  Unsupported      :  701 (31.69%)
  Passed           : 1508 (68.17%)
  Expectedly Failed:    1 (0.05%)
  Failed           :    2 (0.09%)

[joeatodd]

Hi @joeatodd, it seems the CI failure is not related to this PR. The failures are not compile fail. Can this PR be merged?

********************
Expectedly Failed Tests (1):
  SYCL :: VirtualFunctions/misc/group-barrier.cpp

********************
Failed Tests (2):
  SYCL :: syclcompat/memory/usm_allocations.cpp
  SYCL :: syclcompat/util/util_shift_sub_group_right.cpp


Testing Time: 2556.64s

Total Discovered Tests: 2212
  Unsupported      :  701 (31.69%)
  Passed           : 1508 (68.17%)
  Expectedly Failed:    1 (0.05%)
  Failed           :    2 (0.09%)

Yes I've made an issue to describe the unrelated test failures which are occurring across several unrelated PRs.

[joeatodd]

@intel/llvm-gatekeepers this is ready to merge. Unrelated test failures described here.

[steffenlarsen]

@joeatodd - Based on #15737 it should be passing again. Would you mind pushing a merge-commit to make sure it is fully unrelated to these changes?

[joeatodd]

All passing, ready to merge @intel/llvm-gatekeepers 👍