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Commit 00c0c8c8 authored by Shimin Cui's avatar Shimin Cui
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[PowerPC] [MLICM] Enable hoisting of caller preserved registers on AIX 

On ppc64 linux , MachineLICM will hoist caller preserved registers, including TOC loads of the global variable address, out of loops. This is to enable this on AIX for both ppc64 and ppc32.

Differential Revision: https://reviews.llvm.org/D99076
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