[Bug c/51853] New: MPFR assertion failure with Python: p >= 2 && p <= ((mpfr_prec_t)((mpfr_uprec_t)(~(mpfr_uprec_t)0)>>1))

[Bug c/51853] New: MPFR assertion failure with Python: p >= 2 && p <= ((mpfr_prec_t)((mpfr_uprec_t)(~(mpfr_uprec_t)0)>>1))

[julien at trigofacile dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51853

             Bug #: 51853
           Summary: MPFR assertion failure with Python: p >= 2 && p <=
                    ((mpfr_prec_t)((mpfr_uprec_t)(~(mpfr_uprec_t)0)>>1))
    Classification: Unclassified
           Product: gcc
           Version: 4.6.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: julien@trigofacile.com


Hi,

Trying to build Python 2.7.2 (and also 3.2.2) with GCC 4.6.2 and MPFR 3.1.0, I
obtain the following error on HP PA-8600 running Debian (it is in
fact gcc61 in the GCC Compile Farm <http://gcc.gnu.org/wiki/CompileFarm>):

/home/iulius/autobuild/bin/gcc-core-4.6.2/bin/gcc -pthread -c  -DNDEBUG -g
-fwrapv -O3 -Wall -Wstrict-prototypes    -I. -IInclude -I./Include   
-DPy_BUILD_CORE -o Objects/longobject.o Objects/longobject.c
init2.c:52: MPFR assertion failed: p >= 2 && p <=
((mpfr_prec_t)((mpfr_uprec_t)(~(mpfr_uprec_t)0)>>1))
Objects/longobject.c: In function 'PyLong_FromString':
Objects/longobject.c:2002:36: internal compiler error: Aborted
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
make: *** [Objects/longobject.o] Error 1




Configured with: ../gcc-core-4.6.2-src/configure
--prefix=/home/iulius/autobuild/bin/gcc-core-4.6.2
--with-gmp=/home/iulius/autobuild/bin/gmp-5.0.2
--with-mpfr=/home/iulius/autobuild/bin/mpfr-3.1.0
--with-mpc=/home/iulius/autobuild/bin/mpc-0.9 --disable-nls
--enable-threads=posix --disable-multilib


-- 
Julien

[Bug target/51853] MPFR assertion failure with Python: p >= 2 && p <= ((mpfr_prec_t)((mpfr_uprec_t)(~(mpfr_uprec_t)0)>>1))

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51853

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> 2012-01-14 01:40:56 UTC ---
> Please submit a full bug report,
> with preprocessed source if appropriate.
> See <http://gcc.gnu.org/bugs.html> for instructions.

[Bug c/51853] MPFR assertion failure with Python: p >= 2 && p <= ((mpfr_prec_t)((mpfr_uprec_t)(~(mpfr_uprec_t)0)>>1))

[julien at trigofacile dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51853

Julien ÉLIE <julien at trigofacile dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|target                      |c

--- Comment #2 from Julien ÉLIE <julien at trigofacile dot com> 2012-01-14 08:12:29 UTC ---
longobject.i is attached.
Here is the result of "gcc -save-temps":

$ /home/iulius/autobuild/bin/gcc-core-4.6.2/bin/gcc -v -save-temps -pthread -c
-fno-strict-aliasing -g -O2 -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes 
-I. -IInclude -I./Include   -DPy_BUILD_CORE -o Objects/longobject.o
Objects/longobject.c
Using built-in specs.
COLLECT_GCC=/home/iulius/autobuild/bin/gcc-core-4.6.2/bin/gcc
COLLECT_LTO_WRAPPER=/home/iulius/autobuild/bin/gcc-core-4.6.2/libexec/gcc/hppa2.0-unknown-linux-gnu/4.6.2/lto-wrapper
Target: hppa2.0-unknown-linux-gnu
Configured with: ../gcc-core-4.6.2-src/configure
--prefix=/home/iulius/autobuild/bin/gcc-core-4.6.2
--with-gmp=/home/iulius/autobuild/bin/gmp-5.0.2
--with-mpfr=/home/iulius/autobuild/bin/mpfr-3.1.0
--with-mpc=/home/iulius/autobuild/bin/mpc-0.9 --disable-nls
--enable-threads=posix --disable-multilib
Thread model: posix
gcc version 4.6.2 (GCC) 
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-pthread' '-c' '-fno-strict-aliasing'
'-g' '-O2' '-D' 'NDEBUG' '-g' '-fwrapv' '-O3' '-Wall' '-Wstrict-prototypes'
'-I' '.' '-I' 'Include' '-I' './Include' '-D' 'Py_BUILD_CORE' '-o'
'Objects/longobject.o'

/home/iulius/autobuild/bin/gcc-core-4.6.2/libexec/gcc/hppa2.0-unknown-linux-gnu/4.6.2/cc1
-E -quiet -v -I . -I Include -I ./Include -D NDEBUG -D Py_BUILD_CORE
Objects/longobject.c -Wall -Wstrict-prototypes -fno-strict-aliasing -fwrapv -g
-g -fworking-directory -O2 -O3 -fpch-preprocess -o longobject.i
ignoring nonexistent directory
"/home/iulius/autobuild/bin/gcc-core-4.6.2/lib/gcc/hppa2.0-unknown-linux-gnu/4.6.2/../../../../hppa2.0-unknown-linux-gnu/include"
ignoring duplicate directory "./Include"
#include "..." search starts here:
#include <...> search starts here:
 .
 Include

/home/iulius/autobuild/bin/gcc-core-4.6.2/lib/gcc/hppa2.0-unknown-linux-gnu/4.6.2/include
 /usr/local/include
 /home/iulius/autobuild/bin/gcc-core-4.6.2/include

/home/iulius/autobuild/bin/gcc-core-4.6.2/lib/gcc/hppa2.0-unknown-linux-gnu/4.6.2/include-fixed
 /usr/include
End of search list.
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-pthread' '-c' '-fno-strict-aliasing'
'-g' '-O2' '-D' 'NDEBUG' '-g' '-fwrapv' '-O3' '-Wall' '-Wstrict-prototypes'
'-I' '.' '-I' 'Include' '-I' './Include' '-D' 'Py_BUILD_CORE' '-o'
'Objects/longobject.o'

/home/iulius/autobuild/bin/gcc-core-4.6.2/libexec/gcc/hppa2.0-unknown-linux-gnu/4.6.2/cc1
-fpreprocessed longobject.i -quiet -dumpbase longobject.c -auxbase-strip
Objects/longobject.o -g -g -O2 -O3 -Wall -Wstrict-prototypes -version
-fno-strict-aliasing -fwrapv -o longobject.s
GNU C (GCC) version 4.6.2 (hppa2.0-unknown-linux-gnu)
    compiled by GNU C version 4.6.2, GMP version 5.0.2, MPFR version 3.1.0, MPC
version 0.9
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
GNU C (GCC) version 4.6.2 (hppa2.0-unknown-linux-gnu)
    compiled by GNU C version 4.6.2, GMP version 5.0.2, MPFR version 3.1.0, MPC
version 0.9
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: 6576c6dbf099889f96aaa25f3debe8a2
init2.c:52: MPFR assertion failed: p >= 2 && p <=
((mpfr_prec_t)((mpfr_uprec_t)(~(mpfr_uprec_t)0)>>1))
Objects/longobject.c: In function 'PyLong_FromString':
Objects/longobject.c:1852:43: internal compiler error: Aborted
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

[Bug c/51853] MPFR assertion failure with Python: p >= 2 && p <= ((mpfr_prec_t)((mpfr_uprec_t)(~(mpfr_uprec_t)0)>>1))

[julien at trigofacile dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51853

--- Comment #3 from Julien ÉLIE <julien at trigofacile dot com> 2012-01-14 08:13:45 UTC ---
Created attachment 26321
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26321
Result of preprocessed file

[Bug c/51853] MPFR assertion failure with Python: p >= 2 && p <= ((mpfr_prec_t)((mpfr_uprec_t)(~(mpfr_uprec_t)0)>>1))

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51853

--- Comment #4 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-01-16 10:18:45 UTC ---
This is probably a bug in MPFR.  A testcase needs to be reduced for it
though, looking at the mpfr calls arguments from GCC.

[Bug c/51853] MPFR assertion failure with Python: p >= 2 && p <= ((mpfr_prec_t)((mpfr_uprec_t)(~(mpfr_uprec_t)0)>>1))

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51853

Richard Guenther <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
               Host|                            |hppa-linux-gnu

--- Comment #5 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-01-16 10:19:20 UTC ---
I doubt it's reproducible without a hppa host though.

[Bug c/51853] MPFR assertion failure with Python: p >= 2 && p <= ((mpfr_prec_t)((mpfr_uprec_t)(~(mpfr_uprec_t)0)>>1))

[danglin at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51853

John David Anglin <danglin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
                 CC|                            |danglin at gcc dot gnu.org
         Resolution|---                         |WONTFIX

--- Comment #6 from John David Anglin <danglin at gcc dot gnu.org> ---
More recent builds of Python2.7 and MPFR are available in the
Debian unstable archive.  So, I believe this issue is resolved.