build: check and add -fsized-deallocation
#83399
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We use C++17 for the Swift compiler and IRGen uses the sized deallocation for releasing memory it creates with over-allocation. That triggers ASAN warnings due to the mismatched `operator new`/`operator delete`.
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edymtt
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Jul 31, 2025
In particular, fix the Apple Silicon benchmark job by do not propagating the flag added in swiftlang#83399. Addresses rdar://157188603
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We use C++17 for the Swift compiler and IRGen uses the sized deallocation for releasing memory it creates with over-allocation. That triggers ASAN warnings due to the mismatched
operator new/operator delete.