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* [Bug fortran/111341] New: Elemental operator on zero-sized array seg-faults
@ 2023-09-08 19:13 everythingfunctional at protonmail dot com
2023-09-10 5:17 ` [Bug fortran/111341] " kargl at gcc dot gnu.org
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: everythingfunctional at protonmail dot com @ 2023-09-08 19:13 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111341
Bug ID: 111341
Summary: Elemental operator on zero-sized array seg-faults
Product: gcc
Version: 13.2.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: everythingfunctional at protonmail dot com
Target Milestone: ---
There were some scenarios in the real code for this that it doesn't segfault,
but the following reproducer was able to do it reliably for me.
fpm.toml
name = "empty_elemental"
version = "0.1.0"
license = "license"
author = "Brad Richardson"
maintainer = "everythingfunctional@protonmail.com"
copyright = "Copyright 2023, Brad Richardson"
[dependencies]
strff = { git = "https://gitlab.com/everythingfunctional/strff.git", tag =
"v4.0.0" }
iso_varying_string = { git =
"https://gitlab.com/everythingfunctional/iso_varying_string.git", tag =
"v3.0.3" }
app/main.f90
program main
use iso_varying_string, only: varying_string, operator(//), put_line
use strff, only: join
implicit none
call put_line(join("'" // empty() // "'", ","))
contains
pure function empty()
type(varying_string), allocatable :: empty(:)
allocate(empty(0))
end function
end program main
For context, varying_string just has an allocatable deferred length character
component, operator(//) is elemental, join concatenates an array of strings
with the given separator between each, and put_line is basically just print for
varying_string. So the above program should just print a single, zero length
character.
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug fortran/111341] Elemental operator on zero-sized array seg-faults
2023-09-08 19:13 [Bug fortran/111341] New: Elemental operator on zero-sized array seg-faults everythingfunctional at protonmail dot com
@ 2023-09-10 5:17 ` kargl at gcc dot gnu.org
2023-09-11 13:49 ` everythingfunctional at protonmail dot com
2023-09-11 18:29 ` anlauf at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: kargl at gcc dot gnu.org @ 2023-09-10 5:17 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111341
kargl at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |kargl at gcc dot gnu.org
Priority|P3 |P4
--- Comment #1 from kargl at gcc dot gnu.org ---
gfcx -c a.f90
a.f90:3:7:
3 | use iso_varying_string, only: varying_string, operator(//), put_line
| 1
Fatal Error: Cannot open module file 'iso_varying_string.mod' for reading at
(1: No such file or directory
Unforturnately, it seems the issue cannot be reproduced.
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug fortran/111341] Elemental operator on zero-sized array seg-faults
2023-09-08 19:13 [Bug fortran/111341] New: Elemental operator on zero-sized array seg-faults everythingfunctional at protonmail dot com
2023-09-10 5:17 ` [Bug fortran/111341] " kargl at gcc dot gnu.org
@ 2023-09-11 13:49 ` everythingfunctional at protonmail dot com
2023-09-11 18:29 ` anlauf at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: everythingfunctional at protonmail dot com @ 2023-09-11 13:49 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111341
--- Comment #2 from Brad Richardson <everythingfunctional at protonmail dot com> ---
You'll need to use fpm. I.e.
$ tree
.
├── app
│ └── main.f90
└── fpm.toml
$ fpm run
+ mkdir -p build/dependencies
Initialized empty Git repository in
/home/brad/examples/empty_elemental/build/dependencies/strff/.git/
remote: Enumerating objects: 27, done.
remote: Counting objects: 100% (27/27), done.
remote: Compressing objects: 100% (23/23), done.
remote: Total 27 (delta 4), reused 20 (delta 1), pack-reused 0
Unpacking objects: 100% (27/27), 16.98 KiB | 2.42 MiB/s, done.
From https://gitlab.com/everythingfunctional/strff
* tag v4.0.0 -> FETCH_HEAD
Initialized empty Git repository in
/home/brad/examples/empty_elemental/build/dependencies/iso_varying_string/.git/
remote: Enumerating objects: 77, done.
remote: Counting objects: 100% (77/77), done.
remote: Compressing objects: 100% (65/65), done.
remote: Total 77 (delta 34), reused 12 (delta 0), pack-reused 0
Unpacking objects: 100% (77/77), 35.35 KiB | 1.77 MiB/s, done.
From https://gitlab.com/everythingfunctional/iso_varying_string
* tag v3.0.3 -> FETCH_HEAD
Initialized empty Git repository in
/home/brad/examples/empty_elemental/build/dependencies/exceptional_numbers/.git/
remote: Enumerating objects: 18, done.
remote: Counting objects: 100% (18/18), done.
remote: Compressing objects: 100% (17/17), done.
remote: Total 18 (delta 3), reused 0 (delta 0), pack-reused 0
Unpacking objects: 100% (18/18), 6.84 KiB | 1.37 MiB/s, done.
From https://gitlab.com/everythingfunctional/exceptional_numbers
* tag v0.1.1 -> FETCH_HEAD
iso_varying_string.f90 done.
exceptional_numbers.f90 done.
strff.f90 done.
libempty_elemental.a done.
main.f90 done.
empty_elemental done.
[100%] Project compiled successfully.
free(): invalid pointer
Program received signal SIGABRT: Process abort signal.
Backtrace for this error:
#0 0x7f66af03e70f in ???
#1 0x7f66af08e83c in ???
#2 0x7f66af03e667 in ???
#3 0x7f66af0264b7 in ???
#4 0x7f66af02738f in ???
#5 0x7f66af0987b6 in ???
#6 0x7f66af09aa73 in ???
#7 0x7f66af09d352 in ???
#8 0x55a317611bff in MAIN__
at app/main.f90:7
#9 0x55a317611cae in main
at app/main.f90:2
<ERROR> Execution for object " empty_elemental " returned exit code 134
<ERROR> *cmd_run*:stopping due to failed executions
STOP 134
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug fortran/111341] Elemental operator on zero-sized array seg-faults
2023-09-08 19:13 [Bug fortran/111341] New: Elemental operator on zero-sized array seg-faults everythingfunctional at protonmail dot com
2023-09-10 5:17 ` [Bug fortran/111341] " kargl at gcc dot gnu.org
2023-09-11 13:49 ` everythingfunctional at protonmail dot com
@ 2023-09-11 18:29 ` anlauf at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: anlauf at gcc dot gnu.org @ 2023-09-11 18:29 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111341
anlauf at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Ever confirmed|0 |1
Status|UNCONFIRMED |WAITING
Last reconfirmed| |2023-09-11
--- Comment #3 from anlauf at gcc dot gnu.org ---
(In reply to Brad Richardson from comment #2)
> You'll need to use fpm. I.e.
Please provide a self-contained testcase.
Ideally a minimal reproducer.
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2023-09-11 18:29 UTC | newest]
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2023-09-08 19:13 [Bug fortran/111341] New: Elemental operator on zero-sized array seg-faults everythingfunctional at protonmail dot com
2023-09-10 5:17 ` [Bug fortran/111341] " kargl at gcc dot gnu.org
2023-09-11 13:49 ` everythingfunctional at protonmail dot com
2023-09-11 18:29 ` anlauf at gcc dot gnu.org
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