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* [Bug fortran/104211] New: ICE in find_array_section, at fortran/expr.cc:1720
@ 2022-01-24 19:00 gscfq@t-online.de
2022-01-24 20:01 ` [Bug fortran/104211] " anlauf at gcc dot gnu.org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: gscfq@t-online.de @ 2022-01-24 19:00 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104211
Bug ID: 104211
Summary: ICE in find_array_section, at fortran/expr.cc:1720
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: gscfq@t-online.de
Target Milestone: ---
Affects versions down to at least r5 :
$ cat z1.f90
program p
type t
real :: n
end type
type(t), parameter :: a(3) = [t(2)]
type(t), parameter :: b(2) = a(2:3)
end
$ cat z2.f90
program p
type t
real :: n
end type
type(t), parameter :: a(3) = [t(2)]
type(t), parameter :: b(2) = [a(2:3)]
end
$ gfortran-12-20220123 -c z1.f90
f951: internal compiler error: in find_array_section, at fortran/expr.cc:1720
0x6f0d75 find_array_section
../../gcc/fortran/expr.cc:1720
0x6f231a simplify_const_ref
../../gcc/fortran/expr.cc:1925
0x6f2e4e gfc_simplify_expr(gfc_expr*, int)
../../gcc/fortran/expr.cc:2316
0x6f30bb simplify_parameter_variable
../../gcc/fortran/expr.cc:2145
0x6f2007 gfc_reduce_init_expr(gfc_expr*)
../../gcc/fortran/expr.cc:3156
0x6f4f70 gfc_match_init_expr(gfc_expr**)
../../gcc/fortran/expr.cc:3202
0x6df324 variable_decl
../../gcc/fortran/decl.cc:3004
0x6df324 gfc_match_data_decl()
../../gcc/fortran/decl.cc:6299
0x749933 match_word
../../gcc/fortran/parse.cc:67
0x749933 decode_statement
../../gcc/fortran/parse.cc:378
0x74b37a next_free
../../gcc/fortran/parse.cc:1397
0x74b37a next_statement
../../gcc/fortran/parse.cc:1629
0x74c90b parse_spec
../../gcc/fortran/parse.cc:4168
0x74fa5c parse_progunit
../../gcc/fortran/parse.cc:6192
0x751121 gfc_parse_file()
../../gcc/fortran/parse.cc:6737
0x79e86f gfc_be_parse_file
../../gcc/fortran/f95-lang.cc:216
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug fortran/104211] ICE in find_array_section, at fortran/expr.cc:1720
2022-01-24 19:00 [Bug fortran/104211] New: ICE in find_array_section, at fortran/expr.cc:1720 gscfq@t-online.de
@ 2022-01-24 20:01 ` anlauf at gcc dot gnu.org
2022-02-10 20:29 ` anlauf at gcc dot gnu.org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: anlauf at gcc dot gnu.org @ 2022-01-24 20:01 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104211
anlauf at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2022-01-24
Priority|P3 |P4
CC| |anlauf at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #1 from anlauf at gcc dot gnu.org ---
Confirmed.
We hit an assert which can be replaced by an error message, such as:
diff --git a/gcc/fortran/expr.cc b/gcc/fortran/expr.cc
index ed82a94022f..78f21c24f43 100644
--- a/gcc/fortran/expr.cc
+++ b/gcc/fortran/expr.cc
@@ -1718,7 +1718,12 @@ find_array_section (gfc_expr *expr, gfc_ref *ref)
}
cons = gfc_constructor_lookup (base, limit);
- gcc_assert (cons);
+ if (cons == NULL)
+ {
+ gfc_error ("Bad array constructor at %L", &ref->u.ar.where);
+ t = false;
+ goto cleanup;
+ }
gfc_constructor_append_expr (&expr->value.constructor,
gfc_copy_expr (cons->expr), NULL);
}
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug fortran/104211] ICE in find_array_section, at fortran/expr.cc:1720
2022-01-24 19:00 [Bug fortran/104211] New: ICE in find_array_section, at fortran/expr.cc:1720 gscfq@t-online.de
2022-01-24 20:01 ` [Bug fortran/104211] " anlauf at gcc dot gnu.org
@ 2022-02-10 20:29 ` anlauf at gcc dot gnu.org
2022-02-14 20:07 ` cvs-commit at gcc dot gnu.org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: anlauf at gcc dot gnu.org @ 2022-02-10 20:29 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104211
anlauf at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |anlauf at gcc dot gnu.org
--- Comment #2 from anlauf at gcc dot gnu.org ---
Submitted: https://gcc.gnu.org/pipermail/fortran/2022-February/057535.html
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug fortran/104211] ICE in find_array_section, at fortran/expr.cc:1720
2022-01-24 19:00 [Bug fortran/104211] New: ICE in find_array_section, at fortran/expr.cc:1720 gscfq@t-online.de
2022-01-24 20:01 ` [Bug fortran/104211] " anlauf at gcc dot gnu.org
2022-02-10 20:29 ` anlauf at gcc dot gnu.org
@ 2022-02-14 20:07 ` cvs-commit at gcc dot gnu.org
2022-02-16 21:35 ` cvs-commit at gcc dot gnu.org
2022-02-16 21:37 ` anlauf at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2022-02-14 20:07 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104211
--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Harald Anlauf <anlauf@gcc.gnu.org>:
https://gcc.gnu.org/g:19b517dff37b8e25f6babf8883483be73cad8fb3
commit r12-7232-g19b517dff37b8e25f6babf8883483be73cad8fb3
Author: Harald Anlauf <anlauf@gmx.de>
Date: Thu Feb 10 21:22:48 2022 +0100
Fortran: improve error recovery on bad array section
gcc/fortran/ChangeLog:
PR fortran/104211
* expr.cc (find_array_section): Replace assertion by error
recovery when encountering bad array constructor.
gcc/testsuite/ChangeLog:
PR fortran/104211
* gfortran.dg/pr104211.f90: New test.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug fortran/104211] ICE in find_array_section, at fortran/expr.cc:1720
2022-01-24 19:00 [Bug fortran/104211] New: ICE in find_array_section, at fortran/expr.cc:1720 gscfq@t-online.de
` (2 preceding siblings ...)
2022-02-14 20:07 ` cvs-commit at gcc dot gnu.org
@ 2022-02-16 21:35 ` cvs-commit at gcc dot gnu.org
2022-02-16 21:37 ` anlauf at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2022-02-16 21:35 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104211
--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-11 branch has been updated by Harald Anlauf
<anlauf@gcc.gnu.org>:
https://gcc.gnu.org/g:3982a308e669cc5537322c83e8c2d49b0144297e
commit r11-9579-g3982a308e669cc5537322c83e8c2d49b0144297e
Author: Harald Anlauf <anlauf@gmx.de>
Date: Thu Feb 10 21:22:48 2022 +0100
Fortran: improve error recovery on bad array section
gcc/fortran/ChangeLog:
PR fortran/104211
* expr.c (find_array_section): Replace assertion by error
recovery when encountering bad array constructor.
gcc/testsuite/ChangeLog:
PR fortran/104211
* gfortran.dg/pr104211.f90: New test.
(cherry picked from commit 19b517dff37b8e25f6babf8883483be73cad8fb3)
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug fortran/104211] ICE in find_array_section, at fortran/expr.cc:1720
2022-01-24 19:00 [Bug fortran/104211] New: ICE in find_array_section, at fortran/expr.cc:1720 gscfq@t-online.de
` (3 preceding siblings ...)
2022-02-16 21:35 ` cvs-commit at gcc dot gnu.org
@ 2022-02-16 21:37 ` anlauf at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: anlauf at gcc dot gnu.org @ 2022-02-16 21:37 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104211
anlauf at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
Target Milestone|--- |11.3
--- Comment #5 from anlauf at gcc dot gnu.org ---
Fixed on mainline and applied to 11-branch. Closing.
Thanks for the report!
^ permalink raw reply [flat|nested] 6+ messages in thread
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2022-01-24 19:00 [Bug fortran/104211] New: ICE in find_array_section, at fortran/expr.cc:1720 gscfq@t-online.de
2022-01-24 20:01 ` [Bug fortran/104211] " anlauf at gcc dot gnu.org
2022-02-10 20:29 ` anlauf at gcc dot gnu.org
2022-02-14 20:07 ` cvs-commit at gcc dot gnu.org
2022-02-16 21:35 ` cvs-commit at gcc dot gnu.org
2022-02-16 21:37 ` anlauf at gcc dot gnu.org
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