Arseniy Zaostrovnykh e2551c14d0 [analyzer] Fix a false memory leak reports involving placement new (#144341) ...

Placement new does not allocate memory, so it should not be reported as
a memory leak. A recent MallocChecker refactor changed inlining of
placement-new calls with manual evaluation by MallocChecker.
339282d49f

This change avoids marking the value returned by placement new as
allocated and hence avoids the false leak reports.

Note that the there are two syntaxes to invoke placement new:
`new (p) int` and an explicit operator call `operator new(sizeof(int), p)`.
The first syntax was already properly handled by the engine.
This change corrects handling of the second syntax.

CPP-6375

2025-06-17 10:31:38 +02:00

146 KiB

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