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...t > folded, it's easy to do replaceAllUsesWith of the call with a global, and > run an appropriate constant folding pass. > > --Owen > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20120929/3a48e815/attachment.html>

On Sep 28, 2012, at 9:45 AM, James Molloy <james at jamesmolloy.co.uk> wrote: > You can easily simplify this problem with a restriction in SPIR: disallow ConstantExpr casts - no ptrtoint constant expression. Because GlobalVariables have pointer type, if you disallow converting their type to non-pointer type in a constantexpr, the number of constantexpr subclasses you have to deal with is