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

[Zhoulai]

David,

As you suggested, I try to  compile the following test code:









*include "llvm/IR/Instruction.h"#include "stdint.h"extern void
callback(intptr_t);void foo(){  llvm::Instruction* i;  intptr_t
zzzz=static_cast<intptr_t>(i);   callback(zzzz);}*
but got this compilation error:





*      'intptr_t' (aka 'long') is not allowed  intptr_t
zzzz=static_cast<intptr_t>(i);                ^~~~~~~~~~~~~~~~~~~~~~~~1
warning and 1 error generated.*

For information, my OS is a Ubuntu 14.04 (VM), and my command line used to
compile the program is


*clang  prog.cpp  -c -fno-rtti -std=c++11 `llvm-config --cxxflags` -o
prog.cpp.bc *
Any idea on why the casting does not work? Thanks in advance.

Zhoulai

On Wed, May 6, 2015 at 4:12 PM, David Blaikie <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> 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
>>
>> _______________________________________________
>> LLVM Developers mailing list
>> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
>> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>>
>>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20150506/4db542f4/attachment.html>