Florian Hahn ead35564c0 [LoopUtils] Freeze compare results for diff checks instead of pointers. ...

THe freezes are introduced to avoid branch on undef/poison, if any of
the pointers may be poison. The same can be achieved by just freezing
the compare, which reduces the number of freezes needed. See
https://alive2.llvm.org/ce/z/NHa_ud

Note that the individual compares need to be frozen and it is not
sufficient to only freeze the resulting OR:

Result OR frozen only (UNSOUND): https://alive2.llvm.org/ce/z/YzFHQY
Individual conds frozen (SOUND): https://alive2.llvm.org/ce/z/5L6Z3f

2023-11-21 10:54:36 +00:00

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