* [Patch, Fortran] PR 37835 -fno-automatic does not work for derived types with default initalizer
@ 2019-01-18 17:43 Dominique d'Humières
2019-01-19 15:50 ` Thomas Koenig
0 siblings, 1 reply; 3+ messages in thread
From: Dominique d'Humières @ 2019-01-18 17:43 UTC (permalink / raw)
To: Paul Richard Thomas; +Cc: gfortran, gcc-patches
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Hi all!
The patch for gcc/fortran/resolve.c is the modernized version of Paul’s patch in comment 4.
It causes some regressions due to "Duplicate SAVE » warnings.
They are silenced by the patch for gcc/fortran/symbol.c unless -pedantic is used as documented
in the change for gcc/fortran/invoke.texi.
Is it OK for trunk?
TIA
Dominique
2019-01-18 Dominique d'Humieres <dominiq@gcc.gnu.org>
PR fortran/37835
* resolve.c (resolve_types): Add !flag_automatic.
* symbol.c (gfc_add_save): Silence warnings.
2019-01-18 Dominique d'Humieres <dominiq@gcc.gnu.org>
PR fortran/37835
* gfortran.dg/no-automatic.f90: New test.
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diff -up ../_clean/gcc/fortran/resolve.c gcc/fortran/resolve.c
--- ../_clean/gcc/fortran/resolve.c 2019-01-15 23:24:11.000000000 +0100
+++ gcc/fortran/resolve.c 2019-01-17 11:45:32.000000000 +0100
@@ -16669,7 +16669,7 @@ resolve_types (gfc_namespace *ns)
gfc_traverse_ns (ns, resolve_values);
- if (ns->save_all)
+ if (ns->save_all || !flag_automatic)
gfc_save_all (ns);
iter_stack = NULL;
diff -up ../_clean/gcc/fortran/symbol.c gcc/fortran/symbol.c
--- ../_clean/gcc/fortran/symbol.c 2019-01-09 22:54:02.000000000 +0100
+++ gcc/fortran/symbol.c 2019-01-17 11:47:57.000000000 +0100
@@ -1306,7 +1306,8 @@ gfc_add_save (symbol_attribute *attr, sa
if (s == SAVE_EXPLICIT)
gfc_unset_implicit_pure (NULL);
- if (s == SAVE_EXPLICIT && attr->save == SAVE_EXPLICIT)
+ if (s == SAVE_EXPLICIT && attr->save == SAVE_EXPLICIT
+ && (flag_automatic || pedantic))
{
if (!gfc_notify_std (GFC_STD_LEGACY,
"Duplicate SAVE attribute specified at %L",
--- ../_clean/gcc/testsuite/gfortran.dg/no-automatic.f90 1970-01-01 01:00:00.000000000 +0100
+++ gcc/testsuite/gfortran.dg/no-automatic.f90 2019-01-16 17:34:49.000000000 +0100
@@ -0,0 +1,20 @@
+! { dg-do run }
+! { dg-options "-fno-automatic" }
+!
+! PR fortran/37835
+! Contributed by Tobias Burnus <burnus@gcc.gnu.org>.
+!
+subroutine foo(n)
+ integer :: n
+ type t
+ integer :: i = 42
+ end type t
+ type(t) :: myt
+ if(n==1) myt%i = 2
+ print *, myt%i
+ if (n > 1 .and. myt%i /= 2) stop 1
+end subroutine foo
+
+call foo(1)
+call foo(2)
+end
--- ../_clean/gcc/fortran/invoke.texi 2019-01-09 22:54:02.000000000 +0100
+++ gcc/fortran/invoke.texi 2019-01-18 11:33:25.000000000 +0100
@@ -1377,6 +1377,9 @@ The default, which is @option{-fautomati
variables smaller than the value given by @option{-fmax-stack-var-size}.
Use the option @option{-frecursive} to use no static memory.
+Local variables or arrays having an explicit @code{SAVE} attribute are
+silently ignored unless the @option{-pedantic} option is added.
+
@item -ff2c
@opindex ff2c
@cindex calling convention
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [Patch, Fortran] PR 37835 -fno-automatic does not work for derived types with default initalizer
2019-01-18 17:43 [Patch, Fortran] PR 37835 -fno-automatic does not work for derived types with default initalizer Dominique d'Humières
@ 2019-01-19 15:50 ` Thomas Koenig
2019-01-19 21:56 ` Dominique d'Humières
0 siblings, 1 reply; 3+ messages in thread
From: Thomas Koenig @ 2019-01-19 15:50 UTC (permalink / raw)
To: Dominique d'Humières, Paul Richard Thomas; +Cc: gfortran, gcc-patches
Hi Dominique,
> The patch for gcc/fortran/resolve.c is the modernized version of Paulâs patch in comment 4.
> It causes some regressions due to "Duplicate SAVE » warnings.
> They are silenced by the patch for gcc/fortran/symbol.c unless -pedantic is used as documented
> in the change for gcc/fortran/invoke.texi.
>
> Is it OK for trunk?
I assume you did a regression test. OK if this has passed.
Thanks for the patch!
Regards
Thomas
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [Patch, Fortran] PR 37835 -fno-automatic does not work for derived types with default initalizer
2019-01-19 15:50 ` Thomas Koenig
@ 2019-01-19 21:56 ` Dominique d'Humières
0 siblings, 0 replies; 3+ messages in thread
From: Dominique d'Humières @ 2019-01-19 21:56 UTC (permalink / raw)
To: Thomas Koenig; +Cc: Paul Richard Thomas, gfortran, gcc-patches
Thanks for the review, committed as r268098.
Dominique
> Le 19 janv. 2019 à 16:50, Thomas Koenig <tkoenig@netcologne.de> a écrit :
>
> Hi Dominique,
>
>> The patch for gcc/fortran/resolve.c is the modernized version of Paul’s patch in comment 4.
>> It causes some regressions due to "Duplicate SAVE » warnings.
>> They are silenced by the patch for gcc/fortran/symbol.c unless -pedantic is used as documented
>> in the change for gcc/fortran/invoke.texi.
>> Is it OK for trunk?
>
> I assume you did a regression test. OK if this has passed.
I have never submitted a patch without regtesting it!
>
> Thanks for the patch!
>
> Regards
>
> Thomas
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2019-01-18 17:43 [Patch, Fortran] PR 37835 -fno-automatic does not work for derived types with default initalizer Dominique d'Humières
2019-01-19 15:50 ` Thomas Koenig
2019-01-19 21:56 ` Dominique d'Humières
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