[ARM][AArch64] Optimize MI-PL, noswrap, or equality subtractions and additions#155311

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AZero13 wants to merge 2 commits intollvm:mainfrom

Commits on Aug 25, 2025

If we have MI or PL and a sub, we can just do that instead of a CMP
AZero13
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Commits on Aug 26, 2025

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AZero13
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