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

Wojciech Matyjewicz wmatyjewicz at fastmail.fm
Sun Jan 13 09:48:51 PST 2008


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? 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.

Thanks in advance for the answer.

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