[LLVMdev] function calls
aguha at uchicago.edu
Tue Oct 9 11:35:55 PDT 2012
Thanks. Is there a way I can ignore the instructions calling LLVM
intrinsics? Or, prevent them from getting into the IR representation?
Basically, I do not need optimization passes. I am only interested in
analyzing the intermediate representation.
On 10/09/2012 01:24 PM, John Criswell wrote:
> On 10/9/12 1:19 PM, apala guha wrote:
>> I am seeing some strange function calls in the LLVM IR, such as,
>> 'call llvm.lifetime.start'. What are these functions and why are they
>> appearing in the IR?
> These are LLVM intrinsics that provide information to the optimization
> passes. See the Language reference manual
> (http://llvm.org/docs/LangRef.html) for a description of what these
> intrinsics do.
> -- John T.
>> LLVM Developers mailing list
>> LLVMdev at cs.uiuc.edu http://llvm.cs.uiuc.edu
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