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> > I'm not sure we would want to store the MCInst(s) in the AST. After we're > done with semantic checking and we've created the IR representation (with > inputs, outputs, clobbers, constraints, etc.), I don't think there's a > reason for the MCInst(s) to persist. > I was assuming that MCInst would already provide a lot of the needed information, like

On Aug 6, 2012, at 1:03 PM, João Matos wrote: > 1. How is clang going to discover the input operands, output operands, > constraints, and clobbered registers? > > The approach you described sounds good to me. Reusing all the work done in the LLVM MC layer seems the right approach. Glad you agree. We really shouldn't be replicating information in the frontend; this very error