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[AArch64][v8.5A] Add MTE system instructions

Description

[AArch64][v8.5A] Add MTE system instructions

The Memory Tagging Extension adds system instructions for data cache
maintenance, implemented as new operands to the DC instruction.

Patch by Pablo Barrio!

Differential revision: https://reviews.llvm.org/D52487

Details

Committed
olista01Oct 2 2018, 2:48 AM
Differential Revision
D52487: [AArch64][v8.5A] Add MTE system instructions
Parents
rL343569: [InstCombine] Fold ~A - Min/Max(~A, O) -> Max/Min(A, ~O) - A
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