[PATCH] D98144: [CodeGenPrepare] Fix isIVIncrement (PR49466)

[Ta-Wei Tu via Phabricator via llvm-commits]

TaWeiTu added a comment.

In D98144#2623484 <https://reviews.llvm.org/D98144#2623484>, @rupprecht wrote:

> Reverted in 8d20f2c2c66eb486ff23cc3d55a53bd840b36971 <https://reviews.llvm.org/rG8d20f2c2c66eb486ff23cc3d55a53bd840b36971>. Although this fixes a crash, it also introduces a compile timeout (haven't checked if it's a true infinite loop or just _really_ slow) on other code. The reproducer is in the commit message.

Thanks for the report!
There seems to be an infinite loop here but I don't know the reason yet.
Will investigate the cause later.


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