On 12/5/05, Chris Lattner <[EMAIL PROTECTED]> wrote: > That said, having a good representation for source-level exporting is > clearly useful. To be perfectly clear, I am not against a source- > level form, I am just saying that it should be *different* than the > one used for optimization.
Debug information describes two things: the source program, and its relationship to the machine code produced by the toolchain. The second is much harder to produce; each pass needs to maintain the relation between the code it produces and the compiler's original input. Keeping the two representations separate (which I could easily see being beneficial for optimization) shifts that burden onto some new party which isn't being discussed, and which will be quite complicated.
