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authorTobias Burnus <tobias@codesourcery.com>2021-10-12 09:56:08 +0200
committerTobias Burnus <tobias@codesourcery.com>2021-10-12 09:56:08 +0200
commiteb92cd57a1ebe7cd7589bdbec34d9ae337752ead (patch)
tree39db63459b97064e20f383b5179a8f3713c5a598 /gcc/fortran/trans-array.c
parent8e1fe3f779185cc678493ceda42c2e620a5c1387 (diff)
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Fortran: Various CLASS + assumed-rank fixed [PR102541]
Starting point was PR102541, were a previous patch caused an invalid e->ref access for class. When testing, it turned out that for CLASS to CLASS the code was never executed - additionally, issues appeared for optional and a bogus error for -fcheck=all. In particular: There were a bunch of issues related to optional CLASS, can have the 'attr.dummy' set in CLASS_DATA (sym) - but sometimes also in 'sym'!?! Additionally, gfc_variable_attr could return pointer = 1 for nonpointers when the expr is no longer "var" but "var%_data". PR fortran/102541 gcc/fortran/ChangeLog: * check.c (gfc_check_present): Handle optional CLASS. * interface.c (gfc_compare_actual_formal): Likewise. * trans-array.c (gfc_trans_g77_array): Likewise. * trans-decl.c (gfc_build_dummy_array_decl): Likewise. * trans-types.c (gfc_sym_type): Likewise. * primary.c (gfc_variable_attr): Fixes for dummy and pointer when 'class%_data' is passed. * trans-expr.c (set_dtype_for_unallocated, gfc_conv_procedure_call): For assumed-rank dummy, fix setting rank for dealloc/notassoc actual and setting ubound to -1 for assumed-size actuals. gcc/testsuite/ChangeLog: * gfortran.dg/assumed_rank_24.f90: New test.
Diffstat (limited to 'gcc/fortran/trans-array.c')
-rw-r--r--gcc/fortran/trans-array.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/gcc/fortran/trans-array.c b/gcc/fortran/trans-array.c
index e2f59e0..0c5cf4b 100644
--- a/gcc/fortran/trans-array.c
+++ b/gcc/fortran/trans-array.c
@@ -6549,7 +6549,9 @@ gfc_trans_g77_array (gfc_symbol * sym, gfc_wrapped_block * block)
/* Add the initialization code to the start of the function. */
- if (sym->attr.optional || sym->attr.not_always_present)
+ if ((sym->ts.type == BT_CLASS && CLASS_DATA (sym)->attr.optional)
+ || sym->attr.optional
+ || sym->attr.not_always_present)
{
tree nullify;
if (TREE_CODE (parm) != PARM_DECL)