https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93792
kargl at gcc dot gnu.org changed: What |Removed |Added ---------------------------------------------------------------------------- Priority|P3 |P4 Status|UNCONFIRMED |NEW Last reconfirmed| |2020-02-18 CC| |kargl at gcc dot gnu.org Target Milestone|--- |10.0 Ever confirmed|0 |1 Known to fail| |10.0 --- Comment #1 from kargl at gcc dot gnu.org --- This patch is against svn r280157. The patch fixes the ICE. Someone will need to convert the example code into a test for the testsuite. It seems PDT are handled differently than other components in a user-defined derived type. Index: gcc/fortran/decl.c =================================================================== --- gcc/fortran/decl.c (revision 280157) +++ gcc/fortran/decl.c (working copy) @@ -2913,7 +2913,16 @@ variable_decl (int elem) goto cleanup; } else if (param && initializer) - param->value = gfc_copy_expr (initializer); + { + if (initializer && initializer->ts.type == BT_BOZ) + { + gfc_error ("BOZ literal constant at %L cannot appear as an " + "initializer", &initializer->where); + m = MATCH_ERROR; + goto cleanup; + } + param->value = gfc_copy_expr (initializer); + } } /* Before adding a possible initilizer, do a simple check for compatibility