llvm dev - Dec 2013 - [LLVMdev] Help needed with creating new and replacing an old instruction

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<div>Hi,</div><div><br></div><div>I have the
following instruction in my IR-</div><div><b>%call2 = call i8*
@strcpy(i8* %1, i8* %2)</b>
#2</div><div><br></div><div>I intend to change
call to strcpy with strncpy. I have included the following code in
runOnFunction, so that when it is strcpy's turn to be invoked, strncpy is
invoked instead.</div><div><br></div><div>Assuming
I* is the strcpy
instruction,</div><div><br></div><div><b>CallInst*
x=new
CallInst::CreateCall3(strncpy,1,2,ConstantInt(16),"my_strncpy");</b></div><div><b>ReplaceInstWithInst(I*,x);</b></div><div><br></div><div>I'm
running into a whole bunch of errors in CreateCall3(). How can I go about
writing this
correctly?</div><div><br></div><div>Any help would
be
appreciated.</div><div><br></div><div>Thanks.</div><div>Marc</div><div
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