[clang] [compiler-rt] [UBSAN] add null and alignment checks for aggregates (PR #164548)

[Hubert Tong via llvm-commits]

hubert-reinterpretcast wrote:

> We need a real SourceLocation().

The approach from https://github.com/vasu-the-sharma/llvm-project/pull/1 will get us real source locations (but does not cover all cases where `EmitAggregateCopy` is called).

https://github.com/llvm/llvm-project/pull/164548