[llvm] [ConstantFolding] Support ptrtoaddr in cast folds (PR #162480)

[Nikita Popov via llvm-commits]

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@@ -2,6 +2,12 @@
 ; RUN: opt < %s -passes=instcombine -S | FileCheck %s
 target datalayout = "p1:64:64:64:32"
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nikic wrote:

I think that would imply that someone actually verified these are correct for unstable pointers, which is a claim I'm hesitant to make...

https://github.com/llvm/llvm-project/pull/162480