zouq wrote:
> i wonder whether there exists or not alias analysis for  scalar variable,
> array variable, even pointers.
> thank you.

Yes.  See alias.c for alias analysis on RTL.  See also tree-ssa-alias.c
for alias analysis on trees.  The latter is much more sophisticated.
The latter hasn't been in a release yet.  You need to look at either
gcc-4.0 prerelease, or the mainline development sources.
-- 
Jim Wilson, GNU Tools Support, http://www.SpecifixInc.com

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