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[Bug tree-optimization/14784] [Tree-ssa] alias analysis deficiency
- 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: 16 Feb 2006 21:40:28 -0000
- Subject: [Bug tree-optimization/14784] [Tree-ssa] alias analysis deficiency
- References: <bug-14784-5077@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #4 from pinskia at gcc dot gnu dot org 2006-02-16 21:40 -------
We get:
# bitmap_free_7 = PHI <bitmap_free_1(4), bitmap_free_6(5)>;
<L0>:;
# bitmap_free_1 = PHI <bitmap_free_7(3), bitmap_free_2(2)>;
<L4>:;
# VUSE <bitmap_free_1>;
D.1534_4 = head_3->using_obstack;
if (D.1534_4 != 0) goto <L1>; else goto <L0>;
<L1>:;
# bitmap_free_6 = V_MUST_DEF <bitmap_free_1>;
bitmap_free = elt_5;
goto <bb 3> (<L0>);
I cannot figure out why Daniel's recent patches did not fix this one.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14784