[PATCH] D14827: Adding support for missing variations of X86 string related instructions

[Reid Kleckner via llvm-commits]

rnk added a comment.

Craig, can you give us a second opinion here?

These string instructions need a memory operand size, but the encodings only support [esi]/[edi] as a memory operand. If the users asks for `ins byte ptr [eax], dx` and we assemble it to `ins byte ptr es:[edi], dx`, it seems highly likely that the user made a mistake.

I'm trying to insist that we should either error or warn when the instruction that the user asked for is not encodable.


Repository:
  rL LLVM

http://reviews.llvm.org/D14827