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Kang Zhang
5a0ca09690
[PowerPC] Fix the liveins for ppc-expand-isel pass
Summary: In the ppc-expand-isel pass, we use stepForward() to update the liveins, this function is not recommended, because it needs the accurate kill info. This patch uses the function computeAndAddLiveIns() to update the liveins, it's the recommended method and can fix the liveins bug for ppc-expand-isel pass.. Reviewed By: efriedma, lkail Differential Revision: https://reviews.llvm.org/D78657
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