Paulo Matos eb5d79876a [InstCombine] Allow KnownBits to be propagated ...

Bug #63699 shows a hang on arm in instcombine because we do not
propagate known bits for fshl/fshr rotates. We perform the propagation
and add regression test.

Differential Revision: https://reviews.llvm.org/D155307

2023-07-18 13:01:22 +02:00

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