David Green ab280cbaa3 [ARM] Ensure undef is propagated to CBZ/CBNZ flags ...

In some rare circumstances we can be using an undef register for a
compare. When folded into a CBZ/CBNZ the undef flags are lost, leading
to machine verifier problems. This propagates the existing flags to the
new instruction.

2021-03-03 08:02:58 +00:00

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