Allen ea86fb8caf [InstCombine] Fold zext-of-icmp with no shift (#68503) ...

This regression triggers after commit f400daa to fix infinite loop
issue.

In this case, we can known the shift count is 0, so it will not be
triggered by the form of (iN (~X) u>> (N - 1)) in commit 21d3871, of
which N indicates the data type bitwidth of X.

Fixes https://github.com/llvm/llvm-project/issues/68465.

2023-10-09 23:46:09 +08:00

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