[llvm-branch-commits] [llvm] [SPIRV] Do not eliminate `OpPointerType` even if unused (PR #182551)

[Manuel Carrasco via llvm-branch-commits]

mgcarrasco wrote:

>However, when no instruction references the type in the dictionary, we may remove it. Even if it is needed later.

@jmmartinez just to follow, how would be the case in which it may be needed later?

https://github.com/llvm/llvm-project/pull/182551