[clang] [Reland][Clang][CodeGen][UBSan] Add more precise attributes to recoverable ubsan handlers (PR #135135)

[Eli Friedman via cfe-commits]

efriedma-quic wrote:

> Looking at the issue description from https://github.com/llvm/llvm-project/pull/130990, the problem is that the code is passing argmem: read, but then passes a "pointer" as an i32. Which is against the rules: argmem is specifically pointer arguments. So either needs to just be marked "read", or you need to fix the argument passing to pass the pointer as an actual pointer.

Oh, sorry, somehow didn't read the current version of the patch; I see you fixed this.

Still not sure how #135141 is related.

https://github.com/llvm/llvm-project/pull/135135