[LLVMdev] opt -O2/-O3 does not Initialize pass?

[Anthony Danalis]

I was using 2.4, but I built 2.5 and it behaves the same.  I will test  
the SVN head too.

On Mar 11, 2009, at 10:41 PM, Nick Lewycky wrote:

> Anthony Danalis wrote:
>> Hello,
>>
>> I'm writing a pass that adds a function prototype to the module  
>> during
>> doInitialization() and stores the pointer in a global variable.  If I
>> run opt with "-O1" or less, everything works fine.  However, If I  
>> call
>> opt with "-O2" or "-O3" then as soon as runOnFunction() is called,  
>> the
>> pointer seems to be NULL.  Here is a code that shows the problem:
>
> That sounds like the same bug as llvm.org/PR3520 , which was fixed  
> after
> the 2.5 release. Can you confirm which version of LLVM you're seeing
> this in, and if it is 2.5, could you update to SVN head and see  
> whether
> it still happens for you?
>
> Nick
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