I am quite new to LLVM and I want to use LLVM alias results in my project.
As indicated in the http://llvm.org/docs/AliasAnalysis.html#id41, the
count-aa passes are used for debugging. However, when I compared the results of
opt -basicaa -aa-eval < simple_prog.bc and
opt -aa-eval < simple_prog.bc, I found the output lines(stderr) have nothing in differece.
When I look into the code of AliasAnalysisEvaluator.cpp, which is the code for
aa-eval commands, I found that in the body of the AAEvalLegacyPass, AAResultsWrapperPass is the host for the results. In the runOnFuction of AAResultsWrapperPass, it seems that all the available passes are included. So my question is how the
basicaa is affect the
aa-eval after it.