This opcode represents the addition of a pointer value (first operand)
and an integer offset (second operand). PTRADD nodes are only generated
if the TargetMachine opts in by overriding
TargetMachine::shouldPreservePtrArith().
The PTRADD node and respective visitPTRADD() function were adapted by
@rgwott from the CHERI/Morello LLVM tree.
Original authors: @davidchisnall, @jrtc27, @arichardson.
The changes in this PR were extracted from PR #105669.
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Co-authored-by: David Chisnall <github@theravensnest.org>
Co-authored-by: Jessica Clarke <jrtc27@jrtc27.com>
Co-authored-by: Alexander Richardson <alexrichardson@google.com>
Co-authored-by: Rodolfo Wottrich <rodolfo.wottrich@arm.com>
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