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* [Bug c/18671] New: Structure with bit-field offset is wrong.
@ 2004-11-25 7:52 nitins2 at kpitcummins dot com
2004-11-25 14:37 ` [Bug target/18671] " pinskia at gcc dot gnu dot org
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: nitins2 at kpitcummins dot com @ 2004-11-25 7:52 UTC (permalink / raw)
To: gcc-bugs
Hi,
I am using tool chain built with gcc-3.4-20040813 snapshot.
The structure offset byte is wrong for the following C-source code with "-
mrenesas" option.
Without "-mrenesas" option it gives correct offset that is 4.
The data "b2" of structure "bbb" offset is comming 8 which is wrong, it should
be 4.
******************************test.c***************************
struct aaa{
int a1;
}*zzz;
struct bbb {
int b1:1;
int b2;
};
test(){
((struct bbb*)zzz)->b2 = 0x12345678;
}
************************Command line **************************
sh-elf-gcc -mrenesas -S test.c
***********************test.s**********************************
_test:
mov.l r14,@-r15
mov r15,r14
mov.l .L2,r1
mov.l @r1,r2
mov.l .L3,r1
mov.l r1,@(8,r2) <-WRONG OFFSET
mov r14,r15
mov.l @r15+,r14
rts
nop
***************************************************************
Kindly suggest how to solve this bug.
Thanks in advance.
Nitin Shah,
KPIT Cummins InfoSystems Ltd.
Pune, India
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Free download of GNU based tool-chains for Renesas' SH and H8 Series.
The following site also offers free technical support to its users.
Visit http://www.kpitgnutools.com for details.
Latest versions of KPIT GNU tools are released on October 1, 2004.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
--
Summary: Structure with bit-field offset is wrong.
Product: gcc
Version: 3.4.2
Status: UNCONFIRMED
Severity: critical
Priority: P1
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: nitins2 at kpitcummins dot com
CC: gcc-bugs at gcc dot gnu dot org
GCC build triplet: i686-pc-linux-gnu
GCC host triplet: i686-pc-linux-gnu
GCC target triplet: sh-unknown-elf/sh-unknown-coff
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18671
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug target/18671] Structure with bit-field offset is wrong.
2004-11-25 7:52 [Bug c/18671] New: Structure with bit-field offset is wrong nitins2 at kpitcummins dot com
@ 2004-11-25 14:37 ` pinskia at gcc dot gnu dot org
2004-11-29 14:30 ` pinskia at gcc dot gnu dot org
2005-07-02 1:43 ` pinskia at gcc dot gnu dot org
2 siblings, 0 replies; 4+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-11-25 14:37 UTC (permalink / raw)
To: gcc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
Severity|critical |normal
Component|c |target
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18671
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug target/18671] Structure with bit-field offset is wrong.
2004-11-25 7:52 [Bug c/18671] New: Structure with bit-field offset is wrong nitins2 at kpitcummins dot com
2004-11-25 14:37 ` [Bug target/18671] " pinskia at gcc dot gnu dot org
@ 2004-11-29 14:30 ` pinskia at gcc dot gnu dot org
2005-07-02 1:43 ` pinskia at gcc dot gnu dot org
2 siblings, 0 replies; 4+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-11-29 14:30 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-11-29 14:29 -------
This seems like an alignment issue.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18671
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug target/18671] Structure with bit-field offset is wrong.
2004-11-25 7:52 [Bug c/18671] New: Structure with bit-field offset is wrong nitins2 at kpitcummins dot com
2004-11-25 14:37 ` [Bug target/18671] " pinskia at gcc dot gnu dot org
2004-11-29 14:30 ` pinskia at gcc dot gnu dot org
@ 2005-07-02 1:43 ` pinskia at gcc dot gnu dot org
2 siblings, 0 replies; 4+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-07-02 1:43 UTC (permalink / raw)
To: gcc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
GCC build triplet|i686-pc-linux-gnu |
GCC host triplet|i686-pc-linux-gnu |
GCC target triplet|sh-unknown-elf/sh-unknown- |sh-elf/sh-coff
|coff |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18671
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2005-07-02 1:43 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2004-11-25 7:52 [Bug c/18671] New: Structure with bit-field offset is wrong nitins2 at kpitcummins dot com
2004-11-25 14:37 ` [Bug target/18671] " pinskia at gcc dot gnu dot org
2004-11-29 14:30 ` pinskia at gcc dot gnu dot org
2005-07-02 1:43 ` pinskia at gcc dot gnu dot org
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