[LLVMdev] Accessing/Loading a new pass

[Chris Lattner]

On Wed, 4 Jul 2007, Ben Chambers wrote:
> Ah, I was missing that include/llvm/LinkAllPasses.h change.  Thanks!
> Now I have it working, except for the fact that it doesn't seem to
> generate fresh names for things.  Or if it does, they're the empty
> string (I suspect it is the latter, since when I create the new
> instruction the empty string is passed in for the name of the
> instruction).  Is there some way to get a new name (like tmp155) and
> have a high degree of confidence that it is actually unique?

Sure.  Just give every name "tmp" and it will autounique them.

-Chris

> On 7/4/07, Chris Lattner <sabre at nondot.org> wrote:
>> On Wed, 4 Jul 2007, Ben Chambers wrote:
>>> Ok.  So I took the source code from 1.5 for the LowerConstantExprs
>>> pass and (hopefully) corrected all the bitrot.  It now compiles.  But
>>> opt doesn't see it (when I run Release/bin/opt --help it doesn't show
>>> up).  So, I copy the Transform/Hello directory and compile it as a
>>> dynamically loaded pass.  When I run Release/bin/opt -load
>>> Release/lib/LLVMLowerConstExps --help it shows up.  Ok.  Now I run
>>> make install.  Now if I run opt -load Release/lib/LLVMLowerConstExps I
>>> get an error message.  Specifically, I get:
>>
>> I'd suggest adding it back to the scalar directory.  Then make sure to add
>> it to include/llvm/LinkAllPasses.h
>>
>> -Chris
>>
>>> Error opening 'lib/LLVMLowerConst': Can't open :lib/LLVMLowerConst:
>>> dlopen(lib/LLVMLowerConst.0.dylib, 9): Symbol not found:
>>> __ZN4llvm12FunctionPass11runOnModuleERNS_6ModuleE
>>>  Referenced from:
>>> /Users/benchambers/Documents/research/llvm/llvm-2.0/Release/lib/LLVMLowerConst.0.dylib
>>>  Expected in: flat namespace
>>>
>>>  -load request ignored.
>>>
>>> What's going?  I'd like to get it to be built into opt (so I'd like to
>>> figure out why it wasn't showing up when I had it in
>>> Transforms/Scalar), but lacking that I'd like to figure out how to get
>>> it to load into opt after I install opt.
>>>
>>> Thanks for your help,
>>> Ben Chambers
>>> _______________________________________________
>>> LLVM Developers mailing list
>>> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
>>> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>>>
>>
>> -Chris
>>
>> --
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-Chris

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