--- Comment #9 from pinskia at gcc dot gnu dot org 2006-08-25 07:14 ---
Fixed.
--- Comment #10 from pinskia at gcc dot gnu dot org 2006-08-25 07:14
---
Subject: Bug 28807
Author: pinskia
Date: Fri Aug 25 07:13:48 2006
New Revision: 116393
URL: http://gcc.gnu.org/viewcvs?roo
--- Comment #9 from pinskia at gcc dot gnu dot org 2006-08-25 07:14 ---
Fixed.
--
pinskia at gcc dot gnu dot org changed:
What|Removed |Added
Status|ASSIGNED
--- Comment #8 from patchapp at dberlin dot org 2006-08-24 15:18 ---
Subject: Bug number PR 28807
A patch for this bug has been added to the patch tracker.
The mailing list url for the patch is
http://gcc.gnu.org/ml/gcc-patches/2006-08/msg00878.html
--
http://gcc.gnu.org/bugzilla/s
--- Comment #7 from pinskia at gcc dot gnu dot org 2006-08-24 15:16 ---
Mine, all mine.
--
pinskia at gcc dot gnu dot org changed:
What|Removed |Added
AssignedTo|
--- Comment #6 from pinskia at gcc dot gnu dot org 2006-08-23 08:11 ---
This patch fixes the problem without causing the missed optimization to
happen:Index: tree-ssa-operands.c
===
--- tree-ssa-operands.c (revision 116342)
--- Comment #5 from pinskia at gcc dot gnu dot org 2006-08-23 08:06 ---
(In reply to comment #4)
> This is a hard nut to crack, my *guess* is that if you just check the
> alias set of the type of the access, we are going to end up claiming any
> access to a structure containing a char va
--- Comment #4 from dberlin at gcc dot gnu dot org 2006-08-23 01:40 ---
Subject: Re: [4.2 Regression] wrong code with
may_alias and structs
pinskia at gcc dot gnu dot org wrote:
> --- Comment #3 from pinskia at gcc dot gnu dot org 2006-08-22 21:50
> ---
> Created an attachme
--- Comment #3 from pinskia at gcc dot gnu dot org 2006-08-22 21:50 ---
Created an attachment (id=12116)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=12116&action=view)
aliasing dump
aliasing dump for the newest testcase.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28807
--- Comment #2 from pinskia at gcc dot gnu dot org 2006-08-22 21:49 ---
Better testcase which shows the problem before SRA:
struct S { short x; };
typedef struct S __attribute__((__may_alias__)) test;
int f() {
int a=10;
test *p=(test *)&a;
p->x = 1;
return a;
}
int main() {
--- Comment #1 from dberlin at gcc dot gnu dot org 2006-08-22 18:18 ---
Add an alias dump so we can see what things think of all this?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28807
--
pinskia at gcc dot gnu dot org changed:
What|Removed |Added
Known to fail||4.2.0
Known to work||4.1.2
Target
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