[Bug c/13317] New: Combination of options produces broken program on UltraSparc

[Bug c/13317] New: Combination of options produces broken program on UltraSparc

[coyote at coyotegulch dot com]

I get a "Bus error" when compiling one test with

  gcc -lrt -std=gnu99 -O1 -o treebug \
    -mcpu=ultrasparc \
    -fcse-follow-jumps \
    -fgcse \
    -fschedule-insns \
    -finline-functions \
    -fnew-ra \
    treebench.c

Compiled without any one of those options, and the resulting program runs
without exception. I suspect the problem is predicated on -fnew-ra, given the
number of problems with that option I've had on Intel processors. On Intel,
though, -fnew-ra produced an collection of different compiler errors, while on
the SPARC, it produces a broken program.

I have not been able to reduce the size of the test program, but my time has
been somewhat limited. I'm posting the full program with this report, and will
try to reduce it in the coming days.

-- 
           Summary: Combination of options produces broken program on
                    UltraSparc
           Product: gcc
           Version: 3.4
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: coyote at coyotegulch dot com
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: sparc-debian-linux
  GCC host triplet: sparc-debian-linux
GCC target triplet: sparc-debian-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13317

[Bug c/13317] Combination of options produces broken program on UltraSparc

[coyote at coyotegulch dot com]

------- Additional Comments From coyote at coyotegulch dot com  2003-12-05 16:16 -------
Created an attachment (id=5284)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=5284&action=view)
Program that is miscompiled


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13317

[Bug optimization/13317] Combination of options produces broken program on UltraSparc

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|c                           |optimization
           Keywords|                            |wrong-code


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13317

[Bug optimization/13317] Combination of options produces broken program on UltraSparc

[dhazeghi at yahoo dot com]

------- Additional Comments From dhazeghi at yahoo dot com  2003-12-09 22:33 -------
Your first comment is ambiguous. I assume you mean that the program has a bus error. Under 
Solaris I get a segfault on line 252. Is that where the program crashes for you too (before I try and 
reduce this, I want to make sure it's the same error I'm getting)?

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13317

[Bug optimization/13317] Combination of options produces broken program on UltraSparc

[dhazeghi at yahoo dot com]

------- Additional Comments From dhazeghi at yahoo dot com  2004-01-21 06:37 -------
Scott, just a reminder, that this PR is in WAITING. The wrong code manifests as a segfault on 252, 
right?

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13317

[Bug optimization/13317] Combination of options produces broken program on UltraSparc

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-04-15 12:40 -------
Since Dara already confirmed it but not reduced it yet, moving to invalid to ....

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13317

[Bug optimization/13317] Combination of options produces broken program on UltraSparc

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-04-15 12:40 -------
move to an unconfirmed state.

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13317

[Bug rtl-optimization/13317] Combination of options produces broken program on UltraSparc

[ebotcazou at gcc dot gnu dot org]

------- Additional Comments From ebotcazou at gcc dot gnu dot org  2004-07-11 17:45 -------
No feedback in 6 months.

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13317