Carl Ritson 8e64d84995 [MachineSink] Check block prologue interference ...

Sinking must check for interference between the block prologue
and the instruction being sunk.
Specifically check for clobbering of uses by the prologue, and
overwrites to prologue defined registers by the sunk instruction.

Reviewed By: rampitec, ruiling

Differential Revision: https://reviews.llvm.org/D121277

2022-03-22 11:15:37 +09:00

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