[Bug fortran/101135] Load of null pointer when passing absent assumed-shape array argument for an optional dummy argument

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101135 --- Comment #10 from Marcel Jacobse --- Great, already working on compiler explorer with gfortran (trunk). Thanks a lot!

[Bug c++/109065] New: [11/12/13 Regression] Type alias combination erroneously fails with "incomplete type"

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109065 Bug ID: 109065 Summary: [11/12/13 Regression] Type alias combination erroneously fails with "incomplete type" Product: gcc Version: 11.1.0 Status: UNCONFIRMED

[Bug fortran/101135] Use of absent assumed-shape array argument as an actual argument for an optional dummy argument mistakenly flagged as error by UndefinedBehaviourSanitizer

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101135 --- Comment #2 from Marcel Jacobse --- I think I found the issue within gfortran by looking at the output of -fdump-tree-all. For the example, the file a-example.f90.005t.original lists this intermediate representation for test_wrapper:

[Bug fortran/101135] Use of absent assumed-shape array argument as an actual argument for an optional dummy argument mistakenly flagged as error by UndefinedBehaviourSanitizer

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101135 --- Comment #1 from Marcel Jacobse --- With some bisecting I managed to track this down to commit https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=243c288370fe51ba55c3a9ee61eb2a1a62cb1279 being the first "faulty" one. >From what I can tell the

[Bug fortran/101135] New: Use of absent assumed-shape array argument as an actual argument for an optional dummy argument mistakenly flagged as error by UndefinedBehaviourSanitizer

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101135 Bug ID: 101135 Summary: Use of absent assumed-shape array argument as an actual argument for an optional dummy argument mistakenly flagged as error by