Interprocedural points-to analysis

[Richard Guenther]

On Thu, Sep 23, 2010 at 11:31 PM, Hongtao <yu171@purdue.edu> wrote:
>  Hi All,
>
> Has the interprocedural points-to analysis(pass-ipa-pta) been put into
> practice, i.e. using the ipa points-to set to aid optimizations?

Yes, it improves alias-analysis.  The interface to optimizers is the same as
local points-to analysis.  In addition to that it computes IPA mod-ref
information and stores it at call sites.  That information is used by the
alias-oracle as well.

There are testcases in gcc.dg/ipa/ipa-pta-*.c (they are mostly correctness
testcases but also a few optimization ones).

Richard.

> Thanks,
> Hongtao
>