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* [Bug c/105572] New: timeout with -march=bdver2
@ 2022-05-11 19:44 dcb314 at hotmail dot com
2022-05-11 19:51 ` [Bug target/105572] " dcb314 at hotmail dot com
` (5 more replies)
0 siblings, 6 replies; 7+ messages in thread
From: dcb314 at hotmail dot com @ 2022-05-11 19:44 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105572
Bug ID: 105572
Summary: timeout with -march=bdver2
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: dcb314 at hotmail dot com
Target Milestone: ---
Created attachment 52956
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52956&action=edit
C source code
For the attached C code, adding -march=bdver2 causes the compiler to
spend a lot of time.
$ time /home/dcb/gcc/results/bin/gcc -w -c -g -O3 bug810.c
real 0m3.344s
user 0m3.133s
sys 0m0.089s
$ (ulimit -t 300; time /home/dcb/gcc/results/bin/gcc -w -c -g -O3
-march=bdver2 bug810.c)
gcc: fatal error: Killed signal terminated program as
compilation terminated.
real 5m20.276s
user 5m8.801s
sys 0m0.880s
$ /home/dcb/gcc/results/bin/gcc -v 2>&1 | fgrep exp
gcc version 13.0.0 20220511 (experimental) (5b2a24ebfc0b2b4c)
$
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug target/105572] timeout with -march=bdver2
2022-05-11 19:44 [Bug c/105572] New: timeout with -march=bdver2 dcb314 at hotmail dot com
@ 2022-05-11 19:51 ` dcb314 at hotmail dot com
2022-05-12 8:43 ` [Bug target/105572] [12/13 Regression] timeout with -march=bdver2 since r12-155-gd8e1f1d24179690f marxin at gcc dot gnu.org
` (4 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: dcb314 at hotmail dot com @ 2022-05-11 19:51 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105572
--- Comment #1 from David Binderman <dcb314 at hotmail dot com> ---
The problem seems to exist before git revision 82a4c5c704433249, dated about a
month ago.
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug target/105572] [12/13 Regression] timeout with -march=bdver2 since r12-155-gd8e1f1d24179690f
2022-05-11 19:44 [Bug c/105572] New: timeout with -march=bdver2 dcb314 at hotmail dot com
2022-05-11 19:51 ` [Bug target/105572] " dcb314 at hotmail dot com
@ 2022-05-12 8:43 ` marxin at gcc dot gnu.org
2022-05-12 9:32 ` pinskia at gcc dot gnu.org
` (3 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: marxin at gcc dot gnu.org @ 2022-05-12 8:43 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105572
Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |marxin at gcc dot gnu.org
Status|UNCONFIRMED |NEW
Summary|timeout with -march=bdver2 |[12/13 Regression] timeout
| |with -march=bdver2 since
| |r12-155-gd8e1f1d24179690f
Ever confirmed|0 |1
Last reconfirmed| |2022-05-12
--- Comment #2 from Martin Liška <marxin at gcc dot gnu.org> ---
Started with r12-155-gd8e1f1d24179690f.
Apparently GAS takes ages in:
81.66% as [.] symbol_clone_if_forward_ref.part.0
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug target/105572] [12/13 Regression] timeout with -march=bdver2 since r12-155-gd8e1f1d24179690f
2022-05-11 19:44 [Bug c/105572] New: timeout with -march=bdver2 dcb314 at hotmail dot com
2022-05-11 19:51 ` [Bug target/105572] " dcb314 at hotmail dot com
2022-05-12 8:43 ` [Bug target/105572] [12/13 Regression] timeout with -march=bdver2 since r12-155-gd8e1f1d24179690f marxin at gcc dot gnu.org
@ 2022-05-12 9:32 ` pinskia at gcc dot gnu.org
2022-05-12 11:31 ` rguenth at gcc dot gnu.org
` (2 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: pinskia at gcc dot gnu.org @ 2022-05-12 9:32 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105572
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
This should be reported to binutils and closed as moved since this is not a gcc
bug.
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug target/105572] [12/13 Regression] timeout with -march=bdver2 since r12-155-gd8e1f1d24179690f
2022-05-11 19:44 [Bug c/105572] New: timeout with -march=bdver2 dcb314 at hotmail dot com
` (2 preceding siblings ...)
2022-05-12 9:32 ` pinskia at gcc dot gnu.org
@ 2022-05-12 11:31 ` rguenth at gcc dot gnu.org
2022-05-12 11:33 ` marxin at gcc dot gnu.org
2022-05-12 11:34 ` marxin at gcc dot gnu.org
5 siblings, 0 replies; 7+ messages in thread
From: rguenth at gcc dot gnu.org @ 2022-05-12 11:31 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105572
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |12.2
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug target/105572] [12/13 Regression] timeout with -march=bdver2 since r12-155-gd8e1f1d24179690f
2022-05-11 19:44 [Bug c/105572] New: timeout with -march=bdver2 dcb314 at hotmail dot com
` (3 preceding siblings ...)
2022-05-12 11:31 ` rguenth at gcc dot gnu.org
@ 2022-05-12 11:33 ` marxin at gcc dot gnu.org
2022-05-12 11:34 ` marxin at gcc dot gnu.org
5 siblings, 0 replies; 7+ messages in thread
From: marxin at gcc dot gnu.org @ 2022-05-12 11:33 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105572
--- Comment #4 from Martin Liška <marxin at gcc dot gnu.org> ---
I bisected that and it's fixed in master (not present in any release branch):
commit fb0e49d8e05e61ca2af9b5f60b01ad5fb6d274ff
Author: Alan Modra <amodra@gmail.com>
Date: Tue Mar 8 22:48:51 2022 +1030
Constant fold view increment expressions
The idea here is to replace expressions like v + 1 + 1 + 1 with v + 3.
* dwarf2dbg.c (set_or_check_view): Remove useless assertion.
Resolve multiple view increments.
* testsuite/gas/elf/dwarf2-18.d: Don't xfail mep.
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug target/105572] [12/13 Regression] timeout with -march=bdver2 since r12-155-gd8e1f1d24179690f
2022-05-11 19:44 [Bug c/105572] New: timeout with -march=bdver2 dcb314 at hotmail dot com
` (4 preceding siblings ...)
2022-05-12 11:33 ` marxin at gcc dot gnu.org
@ 2022-05-12 11:34 ` marxin at gcc dot gnu.org
5 siblings, 0 replies; 7+ messages in thread
From: marxin at gcc dot gnu.org @ 2022-05-12 11:34 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105572
Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|NEW |RESOLVED
--- Comment #5 from Martin Liška <marxin at gcc dot gnu.org> ---
Fixed in binutils master.
^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2022-05-12 11:34 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
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2022-05-11 19:44 [Bug c/105572] New: timeout with -march=bdver2 dcb314 at hotmail dot com
2022-05-11 19:51 ` [Bug target/105572] " dcb314 at hotmail dot com
2022-05-12 8:43 ` [Bug target/105572] [12/13 Regression] timeout with -march=bdver2 since r12-155-gd8e1f1d24179690f marxin at gcc dot gnu.org
2022-05-12 9:32 ` pinskia at gcc dot gnu.org
2022-05-12 11:31 ` rguenth at gcc dot gnu.org
2022-05-12 11:33 ` marxin at gcc dot gnu.org
2022-05-12 11:34 ` marxin at gcc dot gnu.org
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