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[InstSimplify] Fold nnan/ninf violation to poison

Authored by nikic on Sun, Jan 3, 1:03 PM.

Description

[InstSimplify] Fold nnan/ninf violation to poison

As the comment already indicates, performing an operation with
nnan/ninf flags on a nan/inf or undef results in poison. Now that
we have a proper poison value, we no longer need to relax it to
undef.

Details

Committed
nikicSun, Jan 3, 1:05 PM
Parents
rGedb52c626b53: [LoopUnswitch] Precommit initial partial unswitching test cases.
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