David Green fdd8c10959 [ARM] Delay reverting WLS in arm-block-placement ...

As we have to split blocks, we may be left in an invalid loop state
after a WLS is reverted to a DLS. Instead remember the WLS that could
not be fixed and revert them after finishing processing all other loops.

Differential Revision: https://reviews.llvm.org/D110567

2021-09-28 15:38:29 +01:00

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