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[DevMSAN] Unpoison sret argument for builtin function to get spec constant #19800

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For builtin func like "__sycl_getComposite2020SpecConstantValue", if structs which are larger than 64b will be returned via sret arguments and will be initialized inside the function. So we need to unpoison the sret arguments.

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For builtin func like "__sycl_getComposite2020SpecConstantValue", if structs
which are larger than 64b will be returned via sret arguments and will be
initialized inside the function. So we need to unpoison the sret arguments.
@zhaomaosu zhaomaosu marked this pull request as ready for review August 14, 2025 08:15
@zhaomaosu zhaomaosu requested a review from a team as a code owner August 14, 2025 08:15
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