[llvm] [AMDGPU][ASAN] Remove amdgpu-no-flat-scratch-init attribute from lowered kernels in amdgpu-sw-lower-lds pass (PR #160541)

[via llvm-commits]

b-sumner wrote:

I see now.  That private pointer is probably the "expected" argument to the compare_exchange.  It ought to be optimized away completely later.  I don't understand why we would be casting it to generic.  Is the builtin requiring it?

https://github.com/llvm/llvm-project/pull/160541