[LLVMdev] How to use data structure of another pass
criswell at uiuc.edu
Mon Jul 19 14:25:34 PDT 2010
> In LLVM, we generally use data structure of another pass by
> implementing getAnalysisUsage (AnalysisUsage &AU) method. Suppose
> SOURCE/lib/Transform directory I have added one pass named as pass_1,
> which calculates all expressions in a program and stores all of them
> in an Expr array(take it now for granted). Now I added another pass
> named as pass_2 in the same directory to print all these expression.
> How do I do this?
The pass_1 pass will need to implement a method that returns the array
of expressions (or a reference to it). The pass_2 pass can then use
getAnalysis<pass_1>() to get a reference to the pass_1 object and call
this method on the pass_1 object to get the array of expressions.
-- John T.
> soumya prasad ukil
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