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[Bug tree-optimization/26258] [4.1/4.2 Regression] Wrong alias information for struct
- From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 13 Feb 2006 15:42:45 -0000
- Subject: [Bug tree-optimization/26258] [4.1/4.2 Regression] Wrong alias information for struct
- References: <bug-26258-10053@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #5 from pinskia at gcc dot gnu dot org 2006-02-13 15:42 -------
For the testcase in comment #4:
Points-to analysis
Constraints:
t1_1 = &first
t1_1 = &last
Solving graph:
Points-to sets
t1_1 = { first last }
Pointed-to sets for pointers in foo
t1_1, name memory tag: NMT.17, is dereferenced, points-to vars: { SFT.4 SFT.6 }
----
t1_1 is wrong in "Pointed-to sets for pointers in foo". maybe we forget to add
all the SFT's or something.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26258