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

Craig Topper via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Tue Sep 11 12:25:30 PDT 2018


craig.topper added inline comments.


================
Comment at: test/CodeGen/X86/pr38865.ll:24
+; CHECK-NEXT:    movl %ebx, %esi
+; CHECK-NEXT:    rep;movsl
+; CHECK-NEXT:    callq d
----------------
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?


https://reviews.llvm.org/D51893





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