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[InstSimplify] remove poison-unsafe insertelement of undef value
llvm/llvm-project#44826 :
llvm/llvm-project#44826
SDAG has an identical transform to this, so there's little
chance of any real-world impact. OTOH, that means we are
effectively sweeping the bug out of sight because poison
exists in codegen too.
The text was updated successfully, but these errors were encountered:
Extended Description
Reproduce with:
opt -o - bbi-50589_reduced.ll -S -jump-threading
It doesn't seem to terminate.
This starts happening after 5486e00:
The text was updated successfully, but these errors were encountered: