[SYCL][sycl-rel] Stabilize 6.1 nightly (#17799)
This is a joined cherry-pick of intel/llvm#17367, intel/llvm#17362 and
intel/llvm#17746 intended to fix a few remaining issues we see in 6.1
nightly validation run.
Descriptions of cherry-picked commits:
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[SYCL] Disable launch_policy_neg.cpp on Windows (#17367)
Fails to compile on new MSVC.
Patch-by: Sarnie, Nick <nick.sarnie@intel.com>
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[SYCL] Avoid testing race condition
Use no output file instead of default output file in LIT tests.
This occasionally caused errors on windows when multiple files compile
to the same output file. Using `-fsyntax-only` hjere also avoids running
the full compiler pipeline
See #7872 for more context
Patch-By: David Garcia Orozco <david.garcia.orozco@intel.com>
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[SYCL] Fix clang-linker-wrapper Windows test (#17746)
Failing now because I recently added `ptxas` to the path on these
runners.
Patch-by: Sarnie, Nick <nick.sarnie@intel.com>
---
