[llvm-dev] What about multiple MachineMemOperands in one MI (BranchFolding/MachineInstr::mayAlias)?

[Matt Arsenault via llvm-dev]

> On Sep 27, 2019, at 09:07, Björn Pettersson A via llvm-dev <llvm-dev at lists.llvm.org> wrote:
> 
> Obviously we do not store into two locations (it is still a single two byte store).
> So is it (always) correct to interpret the list of MachineMemOperands as the instruction will store to one of the locations?


I think it’s bug to have multiple memory operands if the instruction only accesses one location. The operands should have been merged in some way unless the instruction can truly access two distinct addresses

-Matt
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