Hello, I have just pushed a for PR108923 (a memory leak).It fixes the small reproducer that I pasted in bugzilla, and I have run it through the fortran regression testsuite.
More details in the patch.
From 545a7d5da5fcc338e29c5241b574ac99d03f4454 Mon Sep 17 00:00:00 2001 From: Mikael Morin <mik...@gcc.gnu.org> Date: Fri, 24 Feb 2023 22:11:17 +0100 Subject: [PATCH] fortran: Plug leak of associated_dummy memory. [PR108923]
This fixes a memory leak by accompanying the release of gfc_actual_arglist elements' memory with a release of the associated_dummy field memory (if allocated). Actual argument copy is adjusted as well so that each copy can free its field independently. PR fortran/108923 gcc/fortran/ChangeLog: * expr.cc (gfc_free_actual_arglist): Free associated_dummy memory. (gfc_copy_actual_arglist): Make a copy of the associated_dummy field if it is set in the original element. --- gcc/fortran/expr.cc | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/gcc/fortran/expr.cc b/gcc/fortran/expr.cc index c295721b9d6..4662328bf31 100644 --- a/gcc/fortran/expr.cc +++ b/gcc/fortran/expr.cc @@ -545,6 +545,7 @@ gfc_free_actual_arglist (gfc_actual_arglist *a1) a2 = a1->next; if (a1->expr) gfc_free_expr (a1->expr); + free (a1->associated_dummy); free (a1); a1 = a2; } @@ -565,6 +566,12 @@ gfc_copy_actual_arglist (gfc_actual_arglist *p) new_arg = gfc_get_actual_arglist (); *new_arg = *p; + if (p->associated_dummy != NULL) + { + new_arg->associated_dummy = gfc_get_dummy_arg (); + *new_arg->associated_dummy = *p->associated_dummy; + } + new_arg->expr = gfc_copy_expr (p->expr); new_arg->next = NULL; -- 2.39.1