Clean up and refactor ReplaceBack optimization to allow loops#365
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totalspectrum merged 1 commit intoApr 5, 2023
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Turns out
InstrModifiesdoes weird things with subregs andSafeToReplaceBackwas giving wrong results, saved only be the actualReplaceBackhaving the same check duplicated, but slightly different withoutInstrModifies. Maybe it should be renamed toInstrMightModify?Eitherhow, can now ReplaceBack over loops, but that part is only enabled on experimental.