$ cat sum.f90 program main real, dimension(2,2) :: a a = reshape((/1.0, -1.0, -2.0, 2.0/),shape(a)) print *,sum(a,dim=2,mask=a>0) end $ gfortran sum.f90 $ ./a.out Segmentation fault $ gfortran -v Using built-in specs. Configured with: ../gcc/configure --prefix=/home/ig25 --enable-languages=c,c++,f95 : (reconfigured) ../gcc/configure --prefix=/home/ig25 --enable-languages=c,c++,f95 Thread model: posix gcc version 4.0.0 20041221 (experimental)
-- Summary: segfault in executable for print *,sum(a,dim=2,mask=a>0) Product: gcc Version: 4.0.0 Status: UNCONFIRMED Severity: normal Priority: P2 Component: libfortran AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: Thomas dot Koenig at online dot de CC: gcc-bugs at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19106