[PATCH] Address Space Casting

[Eli Friedman]

On Mon, Sep 2, 2013 at 8:32 AM, Michele Scandale <michele.scandale at gmail.com
> wrote:

>   New version of the patch:
>   *  remove modification of C-bindings LLVMOpcode enumeration
>   *  fixed constant folding failure: IntToPtr of PtrToInt is folded into a
> bitcast iff the int size is greater than the ptr size and the address
> spaces are the same. If there's an address space mismatch the sequence
> cannot be simplified because the semantic is totally target dependent.
>
>
This patch needs to include a diff for LangRef.

-Eli
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