[LLVMdev] Pass manager question: module pass using function level analysis

[Devang Patel]

Hi,

On Jan 13, 2008, at 9:48 AM, Wojciech Matyjewicz wrote:

> Hi,
>
> I am going to write a module pass (say, P) that uses function level
> analysis (say, A). Suppose, I analyze two different functions during  
> the
> P pass:
>
> bool P::runOnModule(Module &M) {
>  ...
>  A &X = getAnalysis<A>(F1);
>  ...
>  A &Y = getAnalysis<A>(F2);
>  ...
> }
>
> Will X and Y reference the same object here?

No.

> It's not a problem for me,
> as I don't need results of analysis of both functions at the same  
> time.
> However, I wonder, if I should explicitly call releaseMemory() method
> after the first analysis.

Yes, that's a good idea.

>
>
> Thanks in advance for the answer.
> -Wojtek
>
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-
Devang