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4235574ce3
- First, there's a crash when we try to combine that pointers into `icmp` directly by creating a `bitcast`, which is invalid if that two pointers are from different address spaces. - It's not always appropriate to cast one pointer to another if they are from different address spaces as that is not no-op cast. Instead, we only combine `icmp` from `ptrtoint` if that two pointers are of the same address space. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229063 91177308-0d34-0410-b5e6-96231b3b80d8
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