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bottomupcs
2009 Oct 09
1
[LLVMdev] DS-AA reports erroneous NoModRef
.../Ref info (using
the RangeIt, then isModifiedNode() and isReadNode()). But the
intermediate function's DSNode is simply "I", so no Mod/Ref is
reported. This is erroneous; the global is Mod&Ref at the call site.
I am not sure whether there is an error in either ds-aa or in
BottomUpDSA.
I have reduced the program down to a simpler test case. Here the
intermediate functions have an "IE" node. The error occurs when trying
to see if @spec_compress() does Mod/Ref @spec_fd1 (NoModRef reported).
In contrast, ds-aa correctly reports ModRef on the callsite to
@spec_put...