Craig Topper d73684e223 [LoopFlatten] Fix crash if the inner loop trip count comes from a sext instruction. ...

If we look through a truncate in matchLinearIVUser, it's possible
we find a sext/zext instruction that didn't come from widening.
This will fail the MatchedItCount->getType() == InnerInductionPHI->getType()
assertion.

Fix this by checking that we did not look through a truncate already.

Reviewed By: SjoerdMeijer

Differential Revision: https://reviews.llvm.org/D127149

2022-06-07 08:21:21 -07:00

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limit-not-invariant.ll

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loop-flatten-negative.ll

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loop-flatten-simplify-cfg.ll

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loop-flatten.ll

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pr40581.ll

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pr49571.ll

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widen-iv2.ll

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widen-iv3.ll

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widen-iv.ll

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