llvm dev - Mar 2017 - basicaa pass not used despite using the switch when custom opt pass uses dependence analysis

I have written a custom optimization pass referred to here as
"mypassname" that uses dependence analysis. I run it as follows:
./opt  --load  ../lib/mypass.so  -basicaa -da -mypassname sample.ll -S -o
sample2.ll -debug-pass=Arguments

Despite using basicaa switch right before mypassname, noaa is invoke by
dependence analysis pass. Pass analysis arguments are printed twice:

Pass Arguments:  -targetlibinfo -datalayout -notti -basictti -no-aa
-basicaa -HyperOpCreationPass -preverify -domtree -verify -print-module
Pass Arguments:  -no-aa -targetlibinfo -domtree -loops -scalar-evolution -da

How do I force basicaa to be used in dependence analysis?
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