DGH

Data Gathering Hint is a hint instruction that indicates that it is not expected to be performance optimal to merge memory accesses with Normal Non-cacheable or Device-GRE attributes appearing in program order before the hint instruction with any memory accesses appearing after the hint instruction into a single memory transaction on an interconnect.

System
(FEAT_DGH)

313029282726252423222120191817161514131211109876543210
11010101000000110010000011011111
CRmop2

DGH

if !IsFeatureImplemented(FEAT_DGH) then EndOfInstruction(); // Instruction executes as NOP

Operation

Hint_DGH();


Internal version only: aarchmrs v2024-03_relA, pseudocode v2024-03_rel, sve v2024-03_rel ; Build timestamp: 2024-03-26T09:45

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