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* [Bug c/98087] New: [11 Regression] ICE: Floating point exception
@ 2020-12-01 17:55 gscfq@t-online.de
2020-12-01 18:53 ` [Bug c/98087] " jakub at gcc dot gnu.org
` (8 more replies)
0 siblings, 9 replies; 10+ messages in thread
From: gscfq@t-online.de @ 2020-12-01 17:55 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98087
Bug ID: 98087
Summary: [11 Regression] ICE: Floating point exception
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: gscfq@t-online.de
Target Milestone: ---
Changed between 20201115 and 20201122 :
$ cat z1.c
struct S {};
void foo (int n)
{
struct S a[n][0];
__builtin_clear_padding (a);
}
$ gcc-11-20201129 -c z1.c
during GIMPLE pass: lower
z1.c: In function 'foo':
z1.c:2:6: internal compiler error: Floating point exception
2 | void foo (int n)
| ^~~
0xb49eaf crash_signal
../../gcc/toplev.c:330
0x8b9ff1 clear_padding_type
../../gcc/gimple-fold.c:4555
0x8ba973 gimple_fold_builtin_clear_padding
../../gcc/gimple-fold.c:4723
0x8c4c5f gimple_fold_builtin
../../gcc/gimple-fold.c:4897
0x8c6f6b gimple_fold_call
../../gcc/gimple-fold.c:5328
0x8c6f6b fold_stmt_1
../../gcc/gimple-fold.c:6029
0x13bfee9 lower_stmt
../../gcc/gimple-low.c:388
0x13bfee9 lower_sequence
../../gcc/gimple-low.c:217
0x13bffcc lower_stmt
../../gcc/gimple-low.c:286
0x13bffcc lower_sequence
../../gcc/gimple-low.c:217
0x13bfd58 lower_gimple_bind
../../gcc/gimple-low.c:473
0x13c0a91 lower_function_body
../../gcc/gimple-low.c:110
0x13c0a91 execute
../../gcc/gimple-low.c:195
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug c/98087] [11 Regression] ICE: Floating point exception
2020-12-01 17:55 [Bug c/98087] New: [11 Regression] ICE: Floating point exception gscfq@t-online.de
@ 2020-12-01 18:53 ` jakub at gcc dot gnu.org
2020-12-01 19:53 ` marxin at gcc dot gnu.org
` (7 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: jakub at gcc dot gnu.org @ 2020-12-01 18:53 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98087
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC|jakub at redhat dot com |jakub at gcc dot gnu.org
Target Milestone|--- |11.0
Ever confirmed|0 |1
Last reconfirmed| |2020-12-01
Assignee|unassigned at gcc dot gnu.org |jakub at gcc dot gnu.org
Status|UNCONFIRMED |ASSIGNED
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug c/98087] [11 Regression] ICE: Floating point exception
2020-12-01 17:55 [Bug c/98087] New: [11 Regression] ICE: Floating point exception gscfq@t-online.de
2020-12-01 18:53 ` [Bug c/98087] " jakub at gcc dot gnu.org
@ 2020-12-01 19:53 ` marxin at gcc dot gnu.org
2020-12-02 8:20 ` rguenth at gcc dot gnu.org
` (6 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: marxin at gcc dot gnu.org @ 2020-12-01 19:53 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98087
Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |marxin at gcc dot gnu.org
--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Just for the record, started with r11-5196-g1bea0d0aa5936cb3.
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug c/98087] [11 Regression] ICE: Floating point exception
2020-12-01 17:55 [Bug c/98087] New: [11 Regression] ICE: Floating point exception gscfq@t-online.de
2020-12-01 18:53 ` [Bug c/98087] " jakub at gcc dot gnu.org
2020-12-01 19:53 ` marxin at gcc dot gnu.org
@ 2020-12-02 8:20 ` rguenth at gcc dot gnu.org
2020-12-02 8:36 ` marxin at gcc dot gnu.org
` (5 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: rguenth at gcc dot gnu.org @ 2020-12-02 8:20 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98087
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P1
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug c/98087] [11 Regression] ICE: Floating point exception
2020-12-01 17:55 [Bug c/98087] New: [11 Regression] ICE: Floating point exception gscfq@t-online.de
` (2 preceding siblings ...)
2020-12-02 8:20 ` rguenth at gcc dot gnu.org
@ 2020-12-02 8:36 ` marxin at gcc dot gnu.org
2020-12-02 10:33 ` cvs-commit at gcc dot gnu.org
` (4 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: marxin at gcc dot gnu.org @ 2020-12-02 8:36 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98087
Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Assignee|jakub at gcc dot gnu.org |marxin at gcc dot gnu.org
--- Comment #2 from Martin Liška <marxin at gcc dot gnu.org> ---
It's simple to fix, I'll do it.
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug c/98087] [11 Regression] ICE: Floating point exception
2020-12-01 17:55 [Bug c/98087] New: [11 Regression] ICE: Floating point exception gscfq@t-online.de
` (3 preceding siblings ...)
2020-12-02 8:36 ` marxin at gcc dot gnu.org
@ 2020-12-02 10:33 ` cvs-commit at gcc dot gnu.org
2020-12-02 10:39 ` marxin at gcc dot gnu.org
` (3 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2020-12-02 10:33 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98087
--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Martin Liska <marxin@gcc.gnu.org>:
https://gcc.gnu.org/g:337d6362458ab033d3bfe287dda37f9da5577406
commit r11-5647-g337d6362458ab033d3bfe287dda37f9da5577406
Author: Martin Liska <mliska@suse.cz>
Date: Wed Dec 2 09:44:40 2020 +0100
Fix __builtin_clear_padding for empty struct.
gcc/ChangeLog:
PR c/98087
* gimple-fold.c (clear_padding_type): Do not divide by zero.
gcc/testsuite/ChangeLog:
PR c/98087
* gcc.c-torture/compile/pr98087.c: New test.
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug c/98087] [11 Regression] ICE: Floating point exception
2020-12-01 17:55 [Bug c/98087] New: [11 Regression] ICE: Floating point exception gscfq@t-online.de
` (4 preceding siblings ...)
2020-12-02 10:33 ` cvs-commit at gcc dot gnu.org
@ 2020-12-02 10:39 ` marxin at gcc dot gnu.org
2020-12-08 12:26 ` marxin at gcc dot gnu.org
` (2 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: marxin at gcc dot gnu.org @ 2020-12-02 10:39 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98087
Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|ASSIGNED |RESOLVED
--- Comment #4 from Martin Liška <marxin at gcc dot gnu.org> ---
Fixed.
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug c/98087] [11 Regression] ICE: Floating point exception
2020-12-01 17:55 [Bug c/98087] New: [11 Regression] ICE: Floating point exception gscfq@t-online.de
` (5 preceding siblings ...)
2020-12-02 10:39 ` marxin at gcc dot gnu.org
@ 2020-12-08 12:26 ` marxin at gcc dot gnu.org
2020-12-08 13:23 ` redi at gcc dot gnu.org
2020-12-08 13:27 ` jakub at gcc dot gnu.org
8 siblings, 0 replies; 10+ messages in thread
From: marxin at gcc dot gnu.org @ 2020-12-08 12:26 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98087
Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |anbu1024.me at gmail dot com
--- Comment #5 from Martin Liška <marxin at gcc dot gnu.org> ---
*** Bug 98197 has been marked as a duplicate of this bug. ***
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug c/98087] [11 Regression] ICE: Floating point exception
2020-12-01 17:55 [Bug c/98087] New: [11 Regression] ICE: Floating point exception gscfq@t-online.de
` (6 preceding siblings ...)
2020-12-08 12:26 ` marxin at gcc dot gnu.org
@ 2020-12-08 13:23 ` redi at gcc dot gnu.org
2020-12-08 13:27 ` jakub at gcc dot gnu.org
8 siblings, 0 replies; 10+ messages in thread
From: redi at gcc dot gnu.org @ 2020-12-08 13:23 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98087
--- Comment #6 from Jonathan Wakely <redi at gcc dot gnu.org> ---
I don't think this should really be considered a regression, the built-in
didn't exist in older versions. It's a bug in a new feature, not a regression.
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug c/98087] [11 Regression] ICE: Floating point exception
2020-12-01 17:55 [Bug c/98087] New: [11 Regression] ICE: Floating point exception gscfq@t-online.de
` (7 preceding siblings ...)
2020-12-08 13:23 ` redi at gcc dot gnu.org
@ 2020-12-08 13:27 ` jakub at gcc dot gnu.org
8 siblings, 0 replies; 10+ messages in thread
From: jakub at gcc dot gnu.org @ 2020-12-08 13:27 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98087
--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
We often (but not always) treat it as regression because compilation of random
garbage code (that happens to include the newly added builtin) didn't ICE
before and now ICEs. A different case is when one needs newly added command
line switches to trigger the ICE, in that case it is usually not considered a
regression. Anyway, no matter if it is or isn't marked a regression, we should
be fixing bugs in newly added features...
^ permalink raw reply [flat|nested] 10+ messages in thread
end of thread, other threads:[~2020-12-08 13:27 UTC | newest]
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2020-12-01 17:55 [Bug c/98087] New: [11 Regression] ICE: Floating point exception gscfq@t-online.de
2020-12-01 18:53 ` [Bug c/98087] " jakub at gcc dot gnu.org
2020-12-01 19:53 ` marxin at gcc dot gnu.org
2020-12-02 8:20 ` rguenth at gcc dot gnu.org
2020-12-02 8:36 ` marxin at gcc dot gnu.org
2020-12-02 10:33 ` cvs-commit at gcc dot gnu.org
2020-12-02 10:39 ` marxin at gcc dot gnu.org
2020-12-08 12:26 ` marxin at gcc dot gnu.org
2020-12-08 13:23 ` redi at gcc dot gnu.org
2020-12-08 13:27 ` jakub at gcc dot gnu.org
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