Jez Ng 1e1a3f67ee [lld-macho] Ensure reads from nlist_64 structs are aligned when necessary ...

My test refactoring in D80217 seems to have caused yaml2obj to emit
unaligned nlist_64 structs, causing ASAN'd lld to be unhappy. I don't
think this is an issue with yaml2obj though -- llvm-mc also seems to
emit unaligned nlist_64s. This diff makes lld able to safely do aligned
reads under ASAN builds while hopefully creating no overhead for regular
builds on architectures that support unaligned reads.

Reviewed By: thakis

Differential Revision: https://reviews.llvm.org/D80414

2020-06-02 13:19:38 -07:00

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