[Bug c/37763] New: bad interaction of -O3 -pg and -mcu=arm920t ??

[Bug c/37763] New: bad interaction of -O3 -pg and -mcu=arm920t ??

[steven dot paul at monotypeimaging dot com]

Are there known issues among the -pg and -O3 and -mcu=arm9020t options ?  

I am using Gcc 3.3.5 on Debian 1:3.3.5-13, running on a Technologic systems
TS-7200 board with an Arm920T processor.  

Compiling a medium size program (~ 1.5mb source code) with flags
    -O3 -mcu=arm920t -Wall
I get no errors/warnings, and the program runs to completion w/o error

Yet compiling with the flags
    -O3 -pg -mcu=arm920t -Wall
produces no errors/warnings, butproduces Segment errors at runtime -- the
location of the error varies; which is unusual as the program is deterministic.

And compiling with the flags
    -O3 -g -mcu=arm920t -Wall
produces no errors/warnings, and runs to completion (either at command line or
inside gdb) w/o error.


fiy ... compiling the program with these sets of flags
    -mcu-arm920t -Wall
and
    -03 -mcu=arm920t -Wall
compile with no errors/warnings, run to completion w/o error, and and produces
identical large (~2gB) regression test output.


If there are no known issues among these flags, I'll work to get a smaller code
base which will reproduce the bug.

thanks...


-- 
           Summary: bad interaction of -O3 -pg and -mcu=arm920t ??
           Product: gcc
           Version: 3.3.5
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: steven dot paul at monotypeimaging dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37763

[Bug target/37763] bad interaction of -O3 -pg and -mcu=arm920t ??

[pinskia at gcc dot gnu dot org]

------- Comment #1 from pinskia at gcc dot gnu dot org  2008-10-07 20:35 -------
First 3.3.5 is so old that it is hard to reproduce the issue.  Also the ARM
back-end has been improved and there has been a big ABI change (over to a
standard ABI).

We also need the preprocessed source where the issue is.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|c                           |target
 GCC target triplet|                            |arm-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37763

[Bug target/37763] bad interaction of -O3 -pg and -mcu=arm920t ??

[ramana at gcc dot gnu dot org]

------- Comment #2 from ramana at gcc dot gnu dot org  2009-04-29 17:30 -------
Need more information on this bug as specified in comment #2


-- 

ramana at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |WAITING


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37763

[Bug target/37763] bad interaction of -O3 -pg and -mcu=arm920t ??

[ramana at gcc dot gnu dot org]

------- Comment #3 from ramana at gcc dot gnu dot org  2009-10-15 08:30 -------
No response in more than 6 months. This is now marked as INVALID because we
don't have enough information to go by.


-- 

ramana at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |UNCONFIRMED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37763

[Bug target/37763] bad interaction of -O3 -pg and -mcu=arm920t ??

[ramana at gcc dot gnu dot org]

------- Comment #4 from ramana at gcc dot gnu dot org  2009-10-15 08:30 -------
Invalid


-- 

ramana at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |INVALID


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37763