[PATCH] D51893: [X86] Teach X86SelectionDAGInfo::EmitTargetCodeForMemcpy about GNUX32

[Eli Friedman via Phabricator via llvm-commits]

efriedma added inline comments.


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Comment at: test/CodeGen/X86/pr38865.ll:24
+; CHECK-NEXT:    movl %ebx, %esi
+; CHECK-NEXT:    rep;movsl
+; CHECK-NEXT:    callq d
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craig.topper wrote:
> efriedma wrote:
> > Shouldn't this be `rep;movsl (%esi), (%edi)`, to get the right encoding?
> Are you saying we should be using the 0x67 adsize prefix?
Yes, to be consistent with other memory operations.


https://reviews.llvm.org/D51893