[SYCL][CI] Use -D_FORTIFY_SOURCE=2 in Nightly E2E CI
#16470
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See #1117 and #11436 for the context. In this mode, `std::memcpy` cannot be used in device code, but its usage occasionally leaks into our code base. I think testing the configuration in CI is the easiest way to prevent that with at least some confidence. Another option would be to modify FE to report any usage of `std::memcpy` in device code only, but I don't know if that's even possible.
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Test run in https://github.com/intel/llvm/actions/runs/12474534716/job/34817029585 shows that it works and catches existing bugs. I'll prepare another PR with fix(es) and will rebase/rerun this once that other PR is merged. |
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See #1117 and
#11436 for the context.
In this mode,
std::memcpycannot be used in device code, but its usage occasionally leaks into our code base. I think testing the configuration in CI is the easiest way to prevent that with at least some confidence. Another option would be to modify FE to report any usage ofstd::memcpyin device code only, but I don't know if that's even possible.