[LLVMdev] Integer ID for LLVM::Instruction*?

[Jonathan Roelofs]

On 5/6/15 5:39 PM, Zhoulai wrote:
> Thanks. I did not know this simple mechanism,  shame...
>
> Is it safe? Can I then pass the intptr_t to int or long int? In my case,

Only when sizeof(intptr_t) is the same or smaller than the type you're 
shoving it into... and that's a platform dependent question, so by doing 
that you're introducing a potential portability problem in your code.

What callback are you having trouble with?


Jon

> the ID has to be passed to a call back function accepting only primitive
> typed parameters.
>
> Zhoulai
>
> On Wed, May 6, 2015 at 4:12 PM, David Blaikie <dblaikie at gmail.com
> <mailto:dblaikie at gmail.com>> wrote:
>
>     intptr_t id = static_cast<intptr_t>(inst);
>
>     ?
>
>     On Wed, May 6, 2015 at 3:33 PM, Zhoulai <zell08v at gmail.com
>     <mailto:zell08v at gmail.com>> wrote:
>
>         Hi,
>
>         I wonder whether we can easily retrieve an LLVM instruction ID
>         that uniquely identifies the instruction. In my case, I need to
>         avoid using llvm::Instruction* directly. Given an 'inst' of type
>         llvm::instruction*, is there some readily usable method as
>         simple as  “int id = inst->id( )”?  Thanks.
>
>         Zhoulai
>
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-- 
Jon Roelofs
jonathan at codesourcery.com
CodeSourcery / Mentor Embedded