[Bug fortran/46340] New: internal compiler error: Segmentation fault building LAPACK 3.1.1

[Bug fortran/46340] New: internal compiler error: Segmentation fault building LAPACK 3.1.1

[jeff.science at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46340

           Summary: internal compiler error: Segmentation fault building
                    LAPACK 3.1.1
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: jeff.science@gmail.com


Created attachment 22305
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22305
the source file which induces the error

GotoBLAS2-1.13/lapack-3.1.1/SRC> gfortran-4.6 -v -save-temps -O2
-m128bit-long-double -Wall  -m64 -fdefault-integer-8 -fPIC  -c sgesvd.f -o
sgesvd.o
Using built-in specs.
COLLECT_GCC=gfortran-4.6
COLLECT_LTO_WRAPPER=/usr/lib64/gcc/x86_64-suse-linux/4.6/lto-wrapper
Target: x86_64-suse-linux
Configured with: ../configure --prefix=/usr --infodir=/usr/share/info
--mandir=/usr/share/man --libdir=/usr/lib64 --libexecdir=/usr/lib64
--enable-languages=c,c++,objc,fortran,obj-c++,java,ada
--enable-checking=release --with-gxx-include-dir=/usr/include/c++/4.6
--enable-ssp --disable-libssp --disable-plugin
--with-bugurl=http://bugs.opensuse.org/ --with-pkgversion='SUSE Linux'
--disable-libgcj --disable-libmudflap --with-slibdir=/lib64 --with-system-zlib
--enable-__cxa_atexit --enable-libstdcxx-allocator=new --disable-libstdcxx-pch
--enable-version-specific-runtime-libs --program-suffix=-4.6
--enable-linux-futex --without-system-libunwind --enable-gold
--with-plugin-ld=/usr/bin/gold --with-arch-32=i586 --with-tune=generic
--build=x86_64-suse-linux
Thread model: posix
gcc version 4.6.0 20100831 [trunk revision 163668] (SUSE Linux)
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-O2' '-m128bit-long-double' '-Wall'
'-m64' '-fdefault-integer-8' '-fPIC' '-c' '-o' 'sgesvd.o' '-mtune=generic'
'-march=x86-64'
 /usr/lib64/gcc/x86_64-suse-linux/4.6/f951 sgesvd.f -ffixed-form -quiet
-dumpbase sgesvd.f -m128bit-long-double -m64 -mtune=generic -march=x86-64
-auxbase-strip sgesvd.o -O2 -Wall -version -fdefault-integer-8 -fPIC
-fintrinsic-modules-path /usr/lib64/gcc/x86_64-suse-linux/4.6/finclude -o
sgesvd.s
GNU Fortran (SUSE Linux) version 4.6.0 20100831 [trunk revision 163668]
(x86_64-suse-linux)
        compiled by GNU C version 4.6.0 20100831 [trunk revision 163668], GMP
version 4.2.3, MPFR version 2.3.2, MPC version 0.8.2
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
GNU Fortran (SUSE Linux) version 4.6.0 20100831 [trunk revision 163668]
(x86_64-suse-linux)
        compiled by GNU C version 4.6.0 20100831 [trunk revision 163668], GMP
version 4.2.3, MPFR version 2.3.2, MPC version 0.8.2
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
sgesvd.f:542.21:

         WORK( 1 ) = MAXWRK
                     1
Warning: Possible change of value in conversion from INTEGER(8) to REAL(4) at
(1)
sgesvd.f:3396.18:

      WORK( 1 ) = MAXWRK
                  1
Warning: Possible change of value in conversion from INTEGER(8) to REAL(4) at
(1)
sgesvd.f: In function ‘sgesvd’:
sgesvd.f:145:0: warning: ‘wrkbl’ may be used uninitialized in this function
[-Wuninitialized]
sgesvd.f:586:0: warning: ‘mnthr’ may be used uninitialized in this function
[-Wuninitialized]
sgesvd.f:142:0: warning: ‘bdspac’ may be used uninitialized in this function
[-Wuninitialized]
sgesvd.f:1:0: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://bugs.opensuse.org/> for instructions.

[Bug fortran/46340] internal compiler error: Segmentation fault building LAPACK 3.1.1

[burnus at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46340

Tobias Burnus <burnus at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |WAITING
   Last reconfirmed|                            |2010.11.07 08:28:26
                 CC|                            |burnus at gcc dot gnu.org
     Ever Confirmed|0                           |1

--- Comment #1 from Tobias Burnus <burnus at gcc dot gnu.org> 2010-11-07 08:28:26 UTC ---
Can you try a newer version? I can reproduce it with 4.6.0 20100831 but it
seems to be fixed in 4.6.0 20101106. (And also works in my GCC 4.4 and 4.5.)

Cf. also http://gcc.gnu.org/wiki/GFortranBinaries

[Bug fortran/46340] internal compiler error: Segmentation fault building LAPACK 3.1.1

[jeff.science at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46340

Jeff <jeff.science at gmail dot com> changed:

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

--- Comment #2 from Jeff <jeff.science at gmail dot com> 2010-11-07 15:00:53 UTC ---
Yep, the latest version is fine.

Thanks.