hctim wrote:
Will wait for a rebase on some changes requested in #68865, but it'd also be
really important to write tests for a couple more scenarios:
1. Building with `-fsanitize=address -S -emit-llvm` results in GVs with
`sanitized_padded_global` (and results in GVs without `sanitized_padded_global`
if they have `__attribute__((no_sanitize("address")))` for example). See
`clang/test/CodeGen/memtag-globals.cpp`.
2. Running #1 through bitcode back/forth to make sure you still have the same
attributes sets (to ensure you got the parser/writer logic correct). See
`llvm/test/Bitcode/compatibility.ll` and
`llvm/test/Assembler/globalvariable-attributes.ll`.
https://github.com/llvm/llvm-project/pull/70166
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