[PATCH] D23657: Remove some false positives when taking the address of packed members

[Roger Ferrer Ibanez via cfe-commits]

rogfer01 created this revision.
rogfer01 added reviewers: aaron.ballman, rsmith.
rogfer01 added a subscriber: cfe-commits.

This change remove some false positives when taking the address of packed members.

- It silences the warning when a cast to uintptr_t/intptr_t happens.
- If the field is in a packed record that is overaligned, the field may still be in a suitable offset for the required alignment of the field. We now check this as well.

https://reviews.llvm.org/D23657

Files:
  lib/Sema/SemaChecking.cpp
  test/Sema/address-packed.c

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