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| author | Paul Thomas <pault@gcc.gnu.org> | 2007-05-31 07:45:50 +0000 |
|---|---|---|
| committer | Paul Thomas <pault@gcc.gnu.org> | 2007-05-31 07:45:50 +0000 |
| commit | fdecbf80705f71143b2ef3e598067b582be95903 (patch) | |
| tree | dc1bbff7211de77af13ec23b2603163f0d6606c0 /gcc/fortran/module.c | |
| parent | eecb746156c95ba35140a06a6f056f1f90d3e1a1 (diff) | |
| download | gcc-fdecbf80705f71143b2ef3e598067b582be95903.zip gcc-fdecbf80705f71143b2ef3e598067b582be95903.tar.gz gcc-fdecbf80705f71143b2ef3e598067b582be95903.tar.bz2 | |
re PR fortran/32103 (Module with equivalence draws "unsatisfied reference")
2007-05-31 Paul Thomas <pault@gcc.gnu.org>
PR fortran/32103
* module.c (mio_symtree_ref): If an equivalence group member
is not used, give it a hidden symbol and set the pointer_info.
(load_equiv): Only free the equivalence if none of the members
are used.
2007-05-31 Paul Thomas <pault@gcc.gnu.org>
PR fortran/32103
* gfortran.dg/module_equivalence_3.f90: New test.
From-SVN: r125216
Diffstat (limited to 'gcc/fortran/module.c')
| -rw-r--r-- | gcc/fortran/module.c | 30 |
1 files changed, 23 insertions, 7 deletions
diff --git a/gcc/fortran/module.c b/gcc/fortran/module.c index 8a65038..132de38 100644 --- a/gcc/fortran/module.c +++ b/gcc/fortran/module.c @@ -189,7 +189,7 @@ static gfc_use_rename *gfc_rename_list; static pointer_info *pi_root; static int symbol_number; /* Counter for assigning symbol numbers */ -/* Tells mio_expr_ref not to load unused equivalence members. */ +/* Tells mio_expr_ref to make symbols for unused equivalence members. */ static bool in_load_equiv; @@ -2234,9 +2234,25 @@ mio_symtree_ref (gfc_symtree **stp) require_atom (ATOM_INTEGER); p = get_integer (atom_int); - /* An unused equivalence member; bail out. */ + /* An unused equivalence member; make a symbol and a symtree + for it. */ if (in_load_equiv && p->u.rsym.symtree == NULL) - return; + { + /* Since this is not used, it must have a unique name. */ + p->u.rsym.symtree = get_unique_symtree (gfc_current_ns); + + /* Make the symbol. */ + if (p->u.rsym.sym == NULL) + { + p->u.rsym.sym = gfc_new_symbol (p->u.rsym.true_name, + gfc_current_ns); + p->u.rsym.sym->module = gfc_get_string (p->u.rsym.module); + } + + p->u.rsym.symtree->n.sym = p->u.rsym.sym; + p->u.rsym.symtree->n.sym->refs++; + p->u.rsym.referenced = 1; + } if (p->type == P_UNKNOWN) p->type = P_SYMBOL; @@ -3206,13 +3222,13 @@ load_equiv (void) mio_expr (&tail->expr); } - /* Unused variables have no symtree. */ - unused = false; + /* Unused equivalence members have a unique name. */ + unused = true; for (eq = head; eq; eq = eq->eq) { - if (!eq->expr->symtree) + if (!check_unique_name (eq->expr->symtree->name)) { - unused = true; + unused = false; break; } } |