Alexey Lapshin 3493540830 [DebugInfo][NFC] Erase capacity in DWARFUnit::clearDIEs(). ...

DWARFUnit::clearDIEs() uses std::vector::shrink_to_fit() to make
capacity of DieArray matched with its size(). The shrink_to_fit()
is not binding request to make capacity match with size().
Thus the memory could still be reserved after DWARFUnit::clearDIEs()
is called. This patch erases capacity when DWARFUnit::clearDIEs() is requested.
So the memory occupied by dies would be freed.

Differential Revision: https://reviews.llvm.org/D109499

2021-09-10 10:07:28 +03:00

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