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[Bug tree-optimization/21407] [4.1 Regression] wrong code with downcast in C++
- From: "giovannibajo at libero dot it" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 10 May 2005 16:01:17 -0000
- Subject: [Bug tree-optimization/21407] [4.1 Regression] wrong code with downcast in C++
- References: <20050506002331.21407.pinskia@gcc.gnu.org>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From giovannibajo at libero dot it 2005-05-10 16:01 -------
In fact, the salias dump for the C++ testcase says:
---------------------------------------------------------------
;; Function void bar() (_Z3barv)
structure field tag SFT.2 created for var sb offset 0 size 32
void bar() ()
{
struct B sb;
<bb 0>:
foo (&sb.D.1580);
return;
}
---------------------------------------------------------------
so it looks like the substructure *is* at offset zero.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21407