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authorTobias Burnus <burnus@net-b.de>2011-06-05 23:11:46 +0200
committerTobias Burnus <burnus@gcc.gnu.org>2011-06-05 23:11:46 +0200
commit8d231ff273dc0d9d4937be8cd0c5ee53a000cf7a (patch)
tree8b459bf11bf34751da79a5ac42ef725dd5a22f4c /gcc/fortran/trans-expr.c
parente8f79869d7d78364931e69665b9c8f876fa1bb73 (diff)
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re PR fortran/49255 (-fcheck=pointer diagnoses too much: Passing NULL pointer to OPTIONAL argument)
2011-06-05 Tobias Burnus <burnus@net-b.de> PR fortran/49255 * trans-expr.c (gfc_conv_procedure_call): Fix -fcheck=pointer for F2008. 2011-06-05 Tobias Burnus <burnus@net-b.de> PR fortran/49255 * gfortran.dg/pointer_check_9.f90: New. * gfortran.dg/pointer_check_10.f90: New. From-SVN: r174663
Diffstat (limited to 'gcc/fortran/trans-expr.c')
-rw-r--r--gcc/fortran/trans-expr.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/gcc/fortran/trans-expr.c b/gcc/fortran/trans-expr.c
index bfe966f..da4af1a 100644
--- a/gcc/fortran/trans-expr.c
+++ b/gcc/fortran/trans-expr.c
@@ -3269,6 +3269,12 @@ gfc_conv_procedure_call (gfc_se * se, gfc_symbol * sym,
else
goto end_pointer_check;
+ /* In Fortran 2008 it's allowed to pass a NULL pointer/nonallocated
+ allocatable to an optional dummy, cf. 12.5.2.12. */
+ if (fsym != NULL && fsym->attr.optional && !attr.proc_pointer
+ && (gfc_option.allow_std & GFC_STD_F2008) != 0)
+ goto end_pointer_check;
+
if (attr.optional)
{
/* If the actual argument is an optional pointer/allocatable and