Pointer analysis in GCC-4.3.0 - Getting spurious pointsTo pair.

[Seema Ravandale]

Hi.

Gimple code of the program I have tried to get the pointsTo
information is as follow:

 A = 0;
 B = &A;
 C = &B;
 D = &C;
 D.1255 = *D;
 D = (int * * *) D.1255;

The expected pointsTo pairs  are,
B = { A } , A = { },  C = { B }, D.1255 = { B }, D = { B  C }

But with GCC-4.3.0, and command line options  -fdump-ipa-all
-funit-at-a-time  -fipa-pta, we are getting spurious pointsTo pairs
as,
D.1255 = { B A } , D = { B C A }

Is the current analysis Flow-insensitive? Even if It is, the sperious
information, D -> A should not occur.
Please, Can someone clarify on this?

- Seema