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* [Bug c/94731] New: [10 Regression] internal compiler error: in fold_convert_loc, at fold-const.c:2558
@ 2020-04-23 13:58 anbu1024.me at gmail dot com
2020-04-23 14:17 ` [Bug c/94731] [8/9/10 " jakub at gcc dot gnu.org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: anbu1024.me at gmail dot com @ 2020-04-23 13:58 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94731
Bug ID: 94731
Summary: [10 Regression] internal compiler error: in
fold_convert_loc, at fold-const.c:2558
Product: gcc
Version: 10.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: anbu1024.me at gmail dot com
Target Milestone: ---
$ cat reduced.c
int x = - 1 << 0 ;
int foo ()
{
switch ( x )
case - 1 << 0 :
break ;
}
int x[] = { 1 };
--------------------------------------------------------------------------------
$ gcc-10 --version
gcc (GCC) 10.0.1 20200419 (experimental)
Copyright (C) 2020 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
--------------------------------------------------------------------------------
$ gcc-10 reduced.c
reduced.c:11:5: error: conflicting types for ‘x’
11 | int x[] = { 1 };
| ^
reduced.c:2:5: note: previous definition of ‘x’ was here
2 | int x = - 1 << 0 ;
| ^
during GIMPLE pass: cfg
reduced.c: In function ‘foo’:
reduced.c:4:5: internal compiler error: in fold_convert_loc, at
fold-const.c:2558
4 | int foo ()
| ^~~
0x65b384 fold_convert_loc(unsigned int, tree_node*, tree_node*)
../../gcc-10-20200419/gcc/fold-const.c:2558
0xdf7852 convert_single_case_switch
../../gcc-10-20200419/gcc/tree-cfgcleanup.c:110
0xdf7852 cleanup_control_expr_graph
../../gcc-10-20200419/gcc/tree-cfgcleanup.c:145
0xdf7852 cleanup_control_flow_bb
../../gcc-10-20200419/gcc/tree-cfgcleanup.c:252
0xdf7a95 cleanup_control_flow_pre
../../gcc-10-20200419/gcc/tree-cfgcleanup.c:886
0xdf8c4b cleanup_tree_cfg_noloop
../../gcc-10-20200419/gcc/tree-cfgcleanup.c:1055
0xdf9428 cleanup_tree_cfg(unsigned int)
../../gcc-10-20200419/gcc/tree-cfgcleanup.c:1165
0xdf03a4 execute_build_cfg
../../gcc-10-20200419/gcc/tree-cfg.c:376
0xdf03a4 execute
../../gcc-10-20200419/gcc/tree-cfg.c:405
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
--------------------------------------------------------------------------------
$ gcc-9 --version
gcc (GCC) 9.2.1 20191102
Copyright (C) 2019 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
--------------------------------------------------------------------------------
$ gcc-9 reduced.c
reduced.c:11:5: error: conflicting types for ‘x’
11 | int x[] = { 1 };
| ^
reduced.c:2:5: note: previous definition of ‘x’ was here
2 | int x = - 1 << 0 ;
| ^
reduced.c:4: confused by earlier errors, bailing out
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c/94731] [8/9/10 Regression] internal compiler error: in fold_convert_loc, at fold-const.c:2558
2020-04-23 13:58 [Bug c/94731] New: [10 Regression] internal compiler error: in fold_convert_loc, at fold-const.c:2558 anbu1024.me at gmail dot com
@ 2020-04-23 14:17 ` jakub at gcc dot gnu.org
2021-05-14 9:53 ` [Bug c/94731] [9/10/11/12 " jakub at gcc dot gnu.org
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: jakub at gcc dot gnu.org @ 2020-04-23 14:17 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94731
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed| |2020-04-23
Ever confirmed|0 |1
CC| |jakub at gcc dot gnu.org
Summary|[10 Regression] internal |[8/9/10 Regression]
|compiler error: in |internal compiler error: in
|fold_convert_loc, at |fold_convert_loc, at
|fold-const.c:2558 |fold-const.c:2558
Status|UNCONFIRMED |NEW
Target Milestone|--- |8.5
Keywords| |error-recovery
Priority|P3 |P4
--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
This one started to ICE with r8-2897-g02e637d86f9ecb6d0e368438291bb6f6f8feb3ab
I bet in the end it is the same FE bug, that it really shouldn't change the
type of a decl on duplicate_decls once it has been used because the middle-end
is unprepared to see error_mark_nodes.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c/94731] [9/10/11/12 Regression] internal compiler error: in fold_convert_loc, at fold-const.c:2558
2020-04-23 13:58 [Bug c/94731] New: [10 Regression] internal compiler error: in fold_convert_loc, at fold-const.c:2558 anbu1024.me at gmail dot com
2020-04-23 14:17 ` [Bug c/94731] [8/9/10 " jakub at gcc dot gnu.org
@ 2021-05-14 9:53 ` jakub at gcc dot gnu.org
2021-06-01 8:17 ` rguenth at gcc dot gnu.org
2021-06-12 6:36 ` pinskia at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: jakub at gcc dot gnu.org @ 2021-05-14 9:53 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94731
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|8.5 |9.4
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 8 branch is being closed.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c/94731] [9/10/11/12 Regression] internal compiler error: in fold_convert_loc, at fold-const.c:2558
2020-04-23 13:58 [Bug c/94731] New: [10 Regression] internal compiler error: in fold_convert_loc, at fold-const.c:2558 anbu1024.me at gmail dot com
2020-04-23 14:17 ` [Bug c/94731] [8/9/10 " jakub at gcc dot gnu.org
2021-05-14 9:53 ` [Bug c/94731] [9/10/11/12 " jakub at gcc dot gnu.org
@ 2021-06-01 8:17 ` rguenth at gcc dot gnu.org
2021-06-12 6:36 ` pinskia at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: rguenth at gcc dot gnu.org @ 2021-06-01 8:17 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94731
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|9.4 |9.5
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
GCC 9.4 is being released, retargeting bugs to GCC 9.5.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c/94731] [9/10/11/12 Regression] internal compiler error: in fold_convert_loc, at fold-const.c:2558
2020-04-23 13:58 [Bug c/94731] New: [10 Regression] internal compiler error: in fold_convert_loc, at fold-const.c:2558 anbu1024.me at gmail dot com
` (2 preceding siblings ...)
2021-06-01 8:17 ` rguenth at gcc dot gnu.org
@ 2021-06-12 6:36 ` pinskia at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-06-12 6:36 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94731
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |DUPLICATE
Status|NEW |RESOLVED
--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Almost an exact dup of bug 79412.
*** This bug has been marked as a duplicate of bug 79412 ***
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2021-06-12 6:36 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-04-23 13:58 [Bug c/94731] New: [10 Regression] internal compiler error: in fold_convert_loc, at fold-const.c:2558 anbu1024.me at gmail dot com
2020-04-23 14:17 ` [Bug c/94731] [8/9/10 " jakub at gcc dot gnu.org
2021-05-14 9:53 ` [Bug c/94731] [9/10/11/12 " jakub at gcc dot gnu.org
2021-06-01 8:17 ` rguenth at gcc dot gnu.org
2021-06-12 6:36 ` pinskia at gcc dot gnu.org
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