[PATCH] D87974: Summary: [Builtin] Add __builtin_zero_non_value_bits.

[Zoe Carver via Phabricator via cfe-commits]

zoecarver created this revision.
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Adds `__builtin_zero_non_value_bits` to zero all padding bits of a
struct.

Currently does not support unions or bitfields.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D87974

Files:
  clang/include/clang/Basic/Builtins.def
  clang/lib/CodeGen/CGBuiltin.cpp
  clang/lib/Sema/SemaChecking.cpp
  clang/test/CodeGenCXX/builtin-zero-non-value-bits.cpp
  clang/test/SemaCXX/builtin-zero-non-value-bits.cpp

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