[Bug c/29241] New: gcc 4.1.2 segmentation fault

[Bug c/29241] New: gcc 4.1.2 segmentation fault

[gcc at tommay dot net]

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
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This gcc command causes a segmentation fault.  The pre-processed file this
output says to include in the bug report is far too large (675K) to inline in
this report, and I see no way to attach it to the report.  Let me know if you
want me to email it or something.

gcc -v -save-temps -Wp,-MD,net/ipv4/.ip_output.o.d -nostdinc -isystem
/usr/lib/gcc/i486-linux-gnu/4.1.2/include -D__KERNEL__ -Iinclude -include
include/linux/autoconf.h -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs
-fno-strict-aliasing -fno-common -O0 -fno-omit-frame-pointer
-fno-optimize-sibling-calls -fasynchronous-unwind-tables -g -D__arch_um__
'-DSUBARCH="i386"' -Iarch/um/include
-I/tom/linux/linux-uml/arch/um/include/skas -Dvmap=kernel_vmap
-Din6addr_loopback=kernel_in6addr_loopback -Derrno=kernel_errno
-Dsigprocmask=kernel_sigprocmask -Dmktime=kernel_mktime -fno-unit-at-a-time
-U__i386__ -Ui386 -march=i686 -mtune=pentium4 -mpreferred-stack-boundary=2
-ffreestanding -D_LARGEFILE64_SOURCE -Wdeclaration-after-statement
-Wno-pointer-sign '-DKBUILD_STR(s)=#s'
'-DKBUILD_BASENAME=KBUILD_STR(ip_output)'
'-DKBUILD_MODNAME=KBUILD_STR(ip_output)' -c -o ip_output.o net/ipv4/ip_output.c
Using built-in specs.
Target: i486-linux-gnu
Configured with: ../src/configure -v
--enable-languages=c,c++,fortran,objc,obj-c++,treelang --prefix=/usr
--enable-shared --with-system-zlib --libexecdir=/usr/lib
--without-included-gettext --enable-threads=posix --enable-nls
--program-suffix=-4.1 --enable-__cxa_atexit --enable-clocale=gnu
--enable-libstdcxx-debug --enable-mpfr --with-tune=i686
--enable-checking=release i486-linux-gnu
Thread model: posix
gcc version 4.1.2 20060901 (prerelease) (Debian 4.1.1-13)
 /usr/lib/gcc/i486-linux-gnu/4.1.2/cc1 -E -quiet -nostdinc -v -Iinclude
-Iarch/um/include -I/tom/linux/linux-uml/arch/um/include/skas -D__KERNEL__
-D__arch_um__ -DSUBARCH="i386" -Dvmap=kernel_vmap
-Din6addr_loopback=kernel_in6addr_loopback -Derrno=kernel_errno
-Dsigprocmask=kernel_sigprocmask -Dmktime=kernel_mktime -U__i386__ -Ui386
-D_LARGEFILE64_SOURCE -DKBUILD_STR(s)=#s
-DKBUILD_BASENAME=KBUILD_STR(ip_output) -DKBUILD_MODNAME=KBUILD_STR(ip_output)
-isystem /usr/lib/gcc/i486-linux-gnu/4.1.2/include -include
include/linux/autoconf.h -MD net/ipv4/.ip_output.o.d net/ipv4/ip_output.c
-march=i686 -mtune=pentium4 -mpreferred-stack-boundary=2 -Wall -Wundef
-Wstrict-prototypes -Wno-trigraphs -Wdeclaration-after-statement
-Wno-pointer-sign -fno-strict-aliasing -fno-common -fno-omit-frame-pointer
-fno-optimize-sibling-calls -fasynchronous-unwind-tables -fno-unit-at-a-time
-ffreestanding -fworking-directory -O0 -fpch-preprocess -o ip_output.i
#include "..." search starts here:
#include <...> search starts here:
 include
 arch/um/include
 /tom/linux/linux-uml/arch/um/include/skas
 /usr/lib/gcc/i486-linux-gnu/4.1.2/include
End of search list.
 /usr/lib/gcc/i486-linux-gnu/4.1.2/cc1 -fpreprocessed ip_output.i -quiet
-dumpbase ip_output.c -march=i686 -mtune=pentium4 -mpreferred-stack-boundary=2
-auxbase-strip ip_output.o -g -O0 -Wall -Wundef -Wstrict-prototypes
-Wno-trigraphs -Wdeclaration-after-statement -Wno-pointer-sign -version
-fno-strict-aliasing -fno-common -fno-omit-frame-pointer
-fno-optimize-sibling-calls -fasynchronous-unwind-tables -fno-unit-at-a-time
-ffreestanding -o ip_output.s
GNU C version 4.1.2 20060901 (prerelease) (Debian 4.1.1-13) (i486-linux-gnu)
        compiled by GNU C version 4.1.2 20060901 (prerelease) (Debian
4.1.1-13).GGC heuristics: --param ggc-min-expand=55 --param
ggc-min-heapsize=48160
Compiler executable checksum: 87670b01f6c8def5369835011f9cd001
net/ipv4/ip_output.c: In function ‘ip_output’:
net/ipv4/ip_output.c:217: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
For Debian GNU/Linux specific bug reporting instructions,
see <URL:file:///usr/share/doc/gcc-4.1/README.Bugs>.
Preprocessed source stored into /tmp/ccgHvFWq.out file, please attach this to
your bugreport.


-- 
           Summary: gcc 4.1.2 segmentation fault
           Product: gcc
           Version: 4.1.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: gcc at tommay dot net


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29241

[Bug c/29241] gcc 4.1.2 segmentation fault

[gcc at tommay dot net]

------- Comment #1 from gcc at tommay dot net  2006-09-26 19:40 -------
Created an attachment (id=12331)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=12331&action=view)
Pre-processed output causing the fault.

Here's the pre-processed output to cause the fault.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29241

[Bug c/29241] [4.0/4.1/4.2 Regression] ICE with always inline

[pinskia at gcc dot gnu dot org]

------- Comment #2 from pinskia at gcc dot gnu dot org  2006-09-27 02:47 -------
Confirmed reduced testcase:
static inline __attribute__((always_inline)) void ip_finish_output2(){}
static inline __attribute__((always_inline)) void ip_finish_output()
{
 ip_fragment(ip_finish_output2);
 ip_finish_output2();
}
void ip_mc_output()
{
 ip_finish_output();
}
void ip_output()
{
 ip_finish_output();
}


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
           Keywords|                            |ice-on-valid-code
      Known to fail|                            |4.0.0 4.1.0 4.2.0
      Known to work|                            |3.4.0
   Last reconfirmed|0000-00-00 00:00:00         |2006-09-27 02:47:49
               date|                            |
            Summary|gcc 4.1.2 segmentation fault|[4.0/4.1/4.2 Regression] ICE
                   |                            |with always inline
   Target Milestone|---                         |4.0.4


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29241

[Bug c/29241] [4.0/4.1/4.2 Regression] ICE with always inline

[pinskia at gcc dot gnu dot org]

------- Comment #3 from pinskia at gcc dot gnu dot org  2006-09-27 06:37 -------
This only fails with the C front-end, here is a testcase that also compiles
with the C++ front-end but only fails with the C front-end:
static inline __attribute__((always_inline)) void ip_finish_output2(){}
void ip_fragment(void (*)(void));
static inline __attribute__((always_inline)) void ip_finish_output()
{
 ip_fragment(ip_finish_output2);
 ip_finish_output2();
}
void ip_mc_output()
{
 ip_finish_output();
}
void ip_output()
{
 ip_finish_output();
}


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29241

[Bug middle-end/29241] [4.0/4.1/4.2 Regression] [non unit-at-a-time] ICE with always inline

[pinskia at gcc dot gnu dot org]

------- Comment #4 from pinskia at gcc dot gnu dot org  2006-09-27 06:40 -------
(In reply to comment #3)
> This only fails with the C front-end, here is a testcase that also compiles
> with the C++ front-end but only fails with the C front-end:
But I think that is only because the C++ front-end is always unit-at-a-time as
the C testcase passes when using -funit-at-a-time.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |hubicka at gcc dot gnu dot
                   |                            |org
          Component|c                           |middle-end
            Summary|[4.0/4.1/4.2 Regression] ICE|[4.0/4.1/4.2 Regression]
                   |with always inline          |[non unit-at-a-time] ICE
                   |                            |with always inline


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29241

[Bug middle-end/29241] [4.0/4.1/4.2 Regression] [non unit-at-a-time] ICE with always inline

[mmitchel at gcc dot gnu dot org]

-- 

mmitchel at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29241

[Bug middle-end/29241] [4.0/4.1/4.2 Regression] [non unit-at-a-time] ICE with always inline

[hubicka at gcc dot gnu dot org]

------- Comment #5 from hubicka at gcc dot gnu dot org  2006-10-09 16:06 -------
Mine.


-- 

hubicka at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |hubicka at gcc dot gnu dot
                   |dot org                     |org
             Status|NEW                         |ASSIGNED
   Last reconfirmed|2006-09-27 02:47:49         |2006-10-09 16:06:04
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29241

[Bug middle-end/29241] [4.0/4.1/4.2 Regression] [non unit-at-a-time] ICE with always inline

[hubicka at gcc dot gnu dot org]

------- Comment #6 from hubicka at gcc dot gnu dot org  2006-10-15 19:46 -------
Subject: Bug 29241

Author: hubicka
Date: Sun Oct 15 19:46:26 2006
New Revision: 117753

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=117753
Log:
        PR middle-end/29241
        * cgraphunit.c (cgraph_preserve_function_body_p): Preserve functions
        declared always_inline even when not inlining.

        * gcc.c-torture/compile/pr29241.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.c-torture/compile/pr29241.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/cgraphunit.c
    trunk/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29241

[Bug middle-end/29241] [4.0/4.1 Regression] [non unit-at-a-time] ICE with always inline

[rguenth at gcc dot gnu dot org]

------- Comment #7 from rguenth at gcc dot gnu dot org  2007-01-05 11:35 -------
Subject: Bug 29241

Author: rguenth
Date: Fri Jan  5 11:35:01 2007
New Revision: 120475

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=120475
Log:
2007-01-05  Richrad Guenther  <rguenther@suse.de>

        Backport from mainline:
        2006-10-15  Jan Hubicka  <jh@suse.cz>

        PR middle-end/29241
        * cgraphunit.c (cgraph_preserve_function_body_p): Preserve functions
        declared always_inline even when not inlining.

        * gcc.c-torture/compile/pr29241.c: New testcase.

Added:
    branches/gcc-4_1-branch/gcc/testsuite/gcc.c-torture/compile/pr29241.c
      - copied unchanged from r117753,
trunk/gcc/testsuite/gcc.c-torture/compile/pr29241.c
Modified:
    branches/gcc-4_1-branch/gcc/ChangeLog
    branches/gcc-4_1-branch/gcc/cgraphunit.c
    branches/gcc-4_1-branch/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29241

[Bug middle-end/29241] [4.0 Regression] [non unit-at-a-time] ICE with always inline

[rguenth at gcc dot gnu dot org]

------- Comment #8 from rguenth at gcc dot gnu dot org  2007-01-05 11:36 -------
Fixed for 4.1.2.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to fail|4.0.0 4.1.0                 |4.0.0 4.1.0 4.1.1
      Known to work|3.4.0 4.2.0                 |3.4.0 4.2.0 4.1.2
            Summary|[4.0/4.1 Regression] [non   |[4.0 Regression] [non unit-
                   |unit-at-a-time] ICE with    |at-a-time] ICE with always
                   |always inline               |inline


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29241

[Bug middle-end/29241] [4.0 Regression] [non unit-at-a-time] ICE with always inline

[gdr at gcc dot gnu dot org]

------- Comment #9 from gdr at gcc dot gnu dot org  2007-02-03 20:27 -------
Fixed in GCC-4.1.2.


-- 

gdr at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED
   Target Milestone|4.0.4                       |4.1.2


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29241

[Bug middle-end/29241] [4.0 Regression] [non unit-at-a-time] ICE with always inline

[rguenth at gcc dot gnu dot org]

------- Comment #10 from rguenth at gcc dot gnu dot org  2007-03-08 10:54 -------
*** Bug 31077 has been marked as a duplicate of this bug. ***


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |zhouyi04 at ios dot cn


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29241