https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87764
Harald Anlauf <anlauf at gmx dot de> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |anlauf at gmx dot de --- Comment #2 from Harald Anlauf <anlauf at gmx dot de> --- (In reply to Dominique d'Humieres from comment #1) > Confirmed from 4.8 up to trunk (9.0). An instrumented compiler gives > > f951: Warning: No location in statement > ../../work/gcc/fortran/trans.c:1768:39: runtime error: member access within > null pointer of type 'struct gfc_linebuf' > f951: internal compiler error: Segmentation fault: 11 The warning in comment#0 would be restored by the patch: Index: gcc/fortran/trans.c =================================================================== --- gcc/fortran/trans.c (revision 267065) +++ gcc/fortran/trans.c (working copy) @@ -1765,8 +1765,11 @@ void gfc_set_backend_locus (locus * loc) { - gfc_current_backend_file = loc->lb->file; - input_location = loc->lb->location; + if (loc->lb) + { + gfc_current_backend_file = loc->lb->file; + input_location = loc->lb->location; + } } However, this papers over the issue that the locus is not properly set.