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<div class="moz-cite-prefix">On 7/17/15 1:06 PM, Shen Liu wrote:<br>
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cite="mid:CAHxbscunDEBtOM=9q_aguXWsJs7DY5SL=T_m-=WZQ6gODFF40Q@mail.gmail.com"
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<div dir="ltr"> John, thanks for you answer! But as far as I know
LLVM doesn't provide any interface for finding the pointee of a
pointer directly, so i have to process a multi-level pointer i
need to write my own function to check pointers level by level,
is that right?<br>
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<br>
I'm not sure what you're trying to do. If you're trying to
determine the LLVM pointer type and the LLVM type to which it
points, what I've said will work.<br>
<br>
If you're trying to do something more complicated, then you need to
explain more clearly what you want to do. I think it would also
help if you "jumped up a level" and explained what your end goal is
so that the community can give you better advice. Based on your
previous emails, it seems like you're asking very specific questions
instead of asking how to best achieve your overall goal.<br>
<br>
Regards,<br>
<br>
John Criswell<br>
<br>
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cite="mid:CAHxbscunDEBtOM=9q_aguXWsJs7DY5SL=T_m-=WZQ6gODFF40Q@mail.gmail.com"
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<div class="gmail_extra"><br>
<div class="gmail_quote">On Fri, Jul 17, 2015 at 1:47 PM, John
Criswell <span dir="ltr"><<a moz-do-not-send="true" href="mailto:jtcriswel@gmail.com" target="_blank">jtcriswel@gmail.com</a>></span>
wrote:<br>
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<div><span class="">
<div>On 7/17/15 12:38 PM, Shen Liu wrote:<br>
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<div dir="ltr">Hi all, as a LLVM beginner I would like
to know how can i check the pointer types with
different levels like int 32* and int 32**, int
32***?
<div><br>
</div>
<div>By using value->getType()->isPointerTy()
i can just know they are pointers. But the dump
results clearly show they are different. Is there
a good way to calculate their actual point to
levels? Thanks!</div>
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<br>
</span> You will need to use dyn_cast<PointerType>
to cast the Type * into a PointerType *. Once you do
that, you can find the Type * that the PointerType points
to.<br>
<br>
Regards,<br>
<br>
John Criswell<br>
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<div>Best regards,</div>
<div><br>
</div>
<div>Shen</div>
</div>
<br>
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<pre cols="72">--
John Criswell
Assistant Professor
Department of Computer Science, University of Rochester
<a moz-do-not-send="true" href="https://urldefense.proofpoint.com/v2/url?u=http-3A__www.cs.rochester.edu_u_criswell&d=AwMDaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=Mfk2qtn1LTDThVkh6-oGglNfMADXfJdty4_bhmuhMHA&m=wZyHzZ1gOnh2dKMEAQU90XFogQeGjhIOc5Y4CAJZyB0&s=Sjeh5cQTrxnLWAnrxEj4Kmx7KV5t045fStt4_R5jkWY&e=" target="_blank">http://www.cs.rochester.edu/u/criswell</a></pre>
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<pre class="moz-signature" cols="72">--
John Criswell
Assistant Professor
Department of Computer Science, University of Rochester
<a class="moz-txt-link-freetext" href="https://urldefense.proofpoint.com/v2/url?u=http-3A__www.cs.rochester.edu_u_criswell&d=AwMDaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=Mfk2qtn1LTDThVkh6-oGglNfMADXfJdty4_bhmuhMHA&m=wZyHzZ1gOnh2dKMEAQU90XFogQeGjhIOc5Y4CAJZyB0&s=Sjeh5cQTrxnLWAnrxEj4Kmx7KV5t045fStt4_R5jkWY&e=">http://www.cs.rochester.edu/u/criswell</a></pre>
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