* [RFC] Hack for PRs 43996,45081, 58027, 59910, and 60993
@ 2015-11-14 21:21 Dominique d'Humières
2015-11-14 22:04 ` Steve Kargl
2015-11-16 0:32 ` Steve Kargl
0 siblings, 2 replies; 3+ messages in thread
From: Dominique d'Humières @ 2015-11-14 21:21 UTC (permalink / raw)
To: fortran
Compiling PRs 43996,45081, 58027, 59910, and 60993 gives the ICE
internal compiler error: in gfc_conv_array_initializer, at fortran/trans-array.c:5703
Compiling these PRs with '-fno-range-check -fmax-array-constructor=1000000' succeeds except PR45081 (note that the output for pr 60993 does not seem to be the one expected by the reporter).
I have played with the following patch which gives the error
Fatal Error: A problem with BOZ and/or PARAMETER occurred at (1), try to compile with -fnorange-check and/or to increase the allowed 65535 upper limit for the '-fmax-array-constructor’ option
Is there a (simple) way to distinguish between the cases compiling with -fnorange-check and those requiring an increase of the default value for -fmax-array-constructor?
Indeed I know that the problem should be fixed upstream, but would it be acceptable to apply this kind of patch meanwhile?
Cheers,
Dominique
--- ../_clean/gcc/fortran/trans-array.c 2015-11-11 15:23:35.000000000 +0100
+++ gcc/fortran/trans-array.c 2015-11-14 22:02:20.000000000 +0100
@@ -5699,7 +5699,21 @@ gfc_conv_array_initializer (tree type, g
case EXPR_NULL:
return gfc_build_null_descriptor (type);
+ case EXPR_FUNCTION:
+ /* Problems occur when we get something like
+ integer :: a(lots) = (/(i, i=1, lots)/) */
+ gfc_fatal_error ("A problem with BOZ and/or PARAMETER occurred "
+ "at %L, try to compile with -fnorange-check and/or "
+ "to increase the allowed %d upper limit for the "
+ "%<-fmax-array-constructor%> option",
+ &expr->where, flag_max_array_constructor);
+ return NULL_TREE;
+ /* int errors;
+ gfc_get_errors (NULL, &errors);
+ gfc_fatal_error ("Something wrong: errors count is %d", errors); */
+
default:
+ printf ("expr->expr_type is %d\n", expr->expr_type);
gcc_unreachable ();
}
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [RFC] Hack for PRs 43996,45081, 58027, 59910, and 60993
2015-11-14 21:21 [RFC] Hack for PRs 43996,45081, 58027, 59910, and 60993 Dominique d'Humières
@ 2015-11-14 22:04 ` Steve Kargl
2015-11-16 0:32 ` Steve Kargl
1 sibling, 0 replies; 3+ messages in thread
From: Steve Kargl @ 2015-11-14 22:04 UTC (permalink / raw)
To: Dominique d'Humi??res; +Cc: fortran
On Sat, Nov 14, 2015 at 10:21:15PM +0100, Dominique d'Humi??res wrote:
> Compiling PRs 43996,45081, 58027, 59910, and 60993 gives the ICE
>
> internal compiler error: in gfc_conv_array_initializer, at
> fortran/trans-array.c:5703
>
> Compiling these PRs with '-fno-range-check -fmax-array-constructor=1000000' succeeds except PR45081 (note that the output for pr 60993 does not seem to be the one expected by the reporter).
>
> I have played with the following patch which gives the error
>
> Fatal Error: A problem with BOZ and/or PARAMETER occurred at (1), try to compile with -fnorange-check and/or to increase the allowed 65535 upper limit for the '-fmax-array-constructor??? option
>
> Is there a (simple) way to distinguish between the cases compiling with -fnorange-check and those requiring an increase of the default value for -fmax-array-constructor?
>
> Indeed I know that the problem should be fixed upstream, but would it be acceptable to apply this kind of patch meanwhile?
>
I looked at this a bit. The comment above gfc_conv_array_initializer is
/* Create an array constructor from an initialization expression.
We assume the frontend already did any expansions and conversions. */
If this is indeed an initialization expression, it should be reduced.
It seems that the insertion of __convert_i8_i4 occurs after any previous
reduction. So, I purpose the following
% svn diff trans-array.c
Index: trans-array.c
===================================================================
--- trans-array.c (revision 230371)
+++ trans-array.c (working copy)
@@ -5600,6 +5603,12 @@ gfc_conv_array_initializer (tree type, g
&& expr->symtree->n.sym->value)
expr = expr->symtree->n.sym->value;
+ /* expr should be an initialization expression. For BOZ entities, a
+ conversion may have been inserted but not reduced. Do that here. */
+ if (expr->expr_type == EXPR_FUNCTION
+ && strncmp (expr->symtree->name, "__", 2) == 0)
+ gfc_reduce_init_expr (expr);
+
switch (expr->expr_type)
{
case EXPR_CONSTANT:
With the
integer, parameter :: isclass(1) = (/ z'ff800000' /)
print *, isclass
end
I get
laptop-kargl:kargl[254] gfc -c u1.f90
u1.f90:1:37:
integer, parameter :: isclass(1) = (/ z'ff800000' /)
1
Error: Arithmetic overflow converting INTEGER(8) to INTEGER(4) at (1). This check can be disabled with the option '-fno-range-check'
u1.f90:1:37:
integer, parameter :: isclass(1) = (/ z'ff800000' /)
1
Error: Arithmetic overflow converting INTEGER(8) to INTEGER(4) at (1). This check can be disabled with the option '-fno-range-check'
u1.f90:1:37:
integer, parameter :: isclass(1) = (/ z'ff800000' /)
1
Error: Arithmetic overflow converting INTEGER(8) to INTEGER(4) at (1). This check can be disabled with the option '-fno-range-check'
u1.f90:1:37:
integer, parameter :: isclass(1) = (/ z'ff800000' /)
1
Error: Arithmetic overflow converting INTEGER(8) to INTEGER(4) at (1). This check can be disabled with the option '-fno-range-check'
No, I don't know why I get 4 errors instead of 1. So, I suspect
we need to do the reduction earlier.
--
Steve
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [RFC] Hack for PRs 43996,45081, 58027, 59910, and 60993
2015-11-14 21:21 [RFC] Hack for PRs 43996,45081, 58027, 59910, and 60993 Dominique d'Humières
2015-11-14 22:04 ` Steve Kargl
@ 2015-11-16 0:32 ` Steve Kargl
1 sibling, 0 replies; 3+ messages in thread
From: Steve Kargl @ 2015-11-16 0:32 UTC (permalink / raw)
To: Dominique d'Humi??res; +Cc: fortran
On Sat, Nov 14, 2015 at 10:21:15PM +0100, Dominique d'Humi??res wrote:
> Compiling PRs 43996,45081, 58027, 59910, and 60993 gives the ICE
>
I have a patch that fixes 58027 and 60993. 45081 was fixed
long ago. I'll need to defer working on 43996 and 59910
for another day.
--
Steve
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2015-11-16 0:32 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2015-11-14 21:21 [RFC] Hack for PRs 43996,45081, 58027, 59910, and 60993 Dominique d'Humières
2015-11-14 22:04 ` Steve Kargl
2015-11-16 0:32 ` Steve Kargl
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).