Graham Hunter 3c74ed9ee3 [LAA] Fix ICE with scAddExpr in forked pointers ...

The IR from https://github.com/llvm/llvm-project/issues/57368 results
in an assert firing when trying to create a runtime check for the
forked pointer. One of the forks is fine since it's loop invariant,
but the other is a scAddExpr (containing a scAddRecExpr, so not
invariant) when RtCheck::insert expects a scAddRecExpr.

This is a simple fix to just avoid forks which aren't AddRec or
loop invariant. We can allow it as a forked pointer later with
more work.

Reviewed By: fhahn

Differential Revision: https://reviews.llvm.org/D133020

2022-09-21 10:27:06 +01:00

40 KiB

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