[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 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 anlauf at gcc dot gnu.org changed: What|Removed |Added Resolution|--- |FIXED Target Milestone|--- |13.3 Status|NEW |RESOLVED --- Comment #9 from anlauf at gcc dot gnu.org --- Fixed on mainline for gcc-14, and backported to 13-branch. Closing. Thanks for the report and the draft patch!
[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 #8 from GCC Commits --- The releases/gcc-13 branch has been updated by Harald Anlauf : https://gcc.gnu.org/g:344b60addb79278c95b7a5712aaf38721a27 commit r13-8492-g344b60addb79278c95b7a5712aaf38721a27 Author: Harald Anlauf Date: Fri Mar 15 20:14:07 2024 +0100 Fortran: fix for absent array argument passed to optional dummy [PR101135] gcc/fortran/ChangeLog: PR fortran/101135 * trans-array.cc (gfc_get_dataptr_offset): Check for optional arguments being present before dereferencing data pointer. gcc/testsuite/ChangeLog: PR fortran/101135 * gfortran.dg/missing_optional_dummy_6a.f90: Adjust diagnostic pattern. * gfortran.dg/ubsan/missing_optional_dummy_8.f90: New test.
[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 #7 from GCC Commits --- The master branch has been updated by Harald Anlauf : https://gcc.gnu.org/g:3f3f0b7ee8022776d69ecaed1375e1559716f226 commit r14-9509-g3f3f0b7ee8022776d69ecaed1375e1559716f226 Author: Harald Anlauf Date: Fri Mar 15 20:14:07 2024 +0100 Fortran: fix for absent array argument passed to optional dummy [PR101135] gcc/fortran/ChangeLog: PR fortran/101135 * trans-array.cc (gfc_get_dataptr_offset): Check for optional arguments being present before dereferencing data pointer. gcc/testsuite/ChangeLog: PR fortran/101135 * gfortran.dg/missing_optional_dummy_6a.f90: Adjust diagnostic pattern. * gfortran.dg/ubsan/missing_optional_dummy_8.f90: New test.
[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 anlauf at gcc dot gnu.org changed: What|Removed |Added Status|ASSIGNED|NEW --- Comment #6 from anlauf at gcc dot gnu.org --- (In reply to anlauf from comment #4) > Created attachment 52311 [details] > Patch that regtests ok. While playing some more with variations of the testcase, I figured that this patch is not complete. It does not fix cases where a call tree consists of procedures with and without the bind(c) attribute. So more work is needed.
[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 anlauf at gcc dot gnu.org changed: What|Removed |Added Assignee|unassigned at gcc dot gnu.org |anlauf at gcc dot gnu.org Status|NEW |ASSIGNED --- Comment #5 from anlauf at gcc dot gnu.org --- Submitted: https://gcc.gnu.org/pipermail/fortran/2022-January/057496.html
[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 #4 from anlauf at gcc dot gnu.org --- Created attachment 52311 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52311&action=edit Patch that regtests ok. The patch suggested by the reporter is rather close to this one. We need to special-case optional arguments of procedures with bind(c) attribute. I haven't understood the details yet, but excluding those prevents regressions in the c-binding testsuite, e.g. bind-c-contiguous-4.*. We need to fix the pattern for testcase gfortran.dg/missing_optional_dummy_6a.f90 which would have failed with -fsanitize=undefined without this patch.
[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 anlauf at gcc dot gnu.org changed: What|Removed |Added CC||anlauf at gcc dot gnu.org Last reconfirmed||2022-01-27 Status|UNCONFIRMED |NEW Priority|P3 |P4 Ever confirmed|0 |1 --- Comment #3 from anlauf at gcc dot gnu.org --- Confirmed.
