kovdan01 wrote:
The PR no longer depends on #96477. For signed ctors/dtors we now have special
address discrimination handling so we don't need to use self-references to
`llvm.global_{c|d}tors` with giant `getelementptr` expressions - such
references are disallowed and, as discussed in #96477, allowing them just for
ptrauth purposes has significant drawbacks.
Instead, just use `ptr inttoptr (i64 1 to ptr)`, like this:
```
@llvm.global_ctors = appending global [1 x { i32, ptr, ptr }] [{ i32, ptr, ptr
} { i32 65535, ptr ptrauth (ptr @foo, i32 0, i64 55764, ptr inttoptr (i64 1 to
ptr)), ptr null }]
```
This is the same approach which is used in Apple's downstream for coroutines,
and we share some code with that - see
https://github.com/ahmedbougacha/llvm-project/commit/2a5528ea2cb223fca0b47f0a4833bbb938cf0748.
Also tagging @ahmedbougacha.
https://github.com/llvm/llvm-project/pull/96478
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