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* [Bug regression/103318] New: Spec 2017 benchmark perlbench_r fails on PowerPC for -Ofast and -O3, passes with -O2
@ 2021-11-18 16:13 meissner at gcc dot gnu.org
2021-11-18 16:14 ` [Bug regression/103318] " meissner at gcc dot gnu.org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: meissner at gcc dot gnu.org @ 2021-11-18 16:13 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103318
Bug ID: 103318
Summary: Spec 2017 benchmark perlbench_r fails on PowerPC for
-Ofast and -O3, passes with -O2
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: regression
Assignee: unassigned at gcc dot gnu.org
Reporter: meissner at gcc dot gnu.org
Target Milestone: ---
The Spec 2017 benchmark perlbench_r compiles fine but produces the wrong output
when compiled with -O3 or -Ofast options on both power9 and power10. Using -O2
produces the right results on power10. In going back with the previous runs
that I've done on power10, it worked with sources checked out on October 17th,
but failed with sources checked out on November 4th and November 17th.
For power10, the options that I use are:
-g -mlittle -save-temps=obj -ffast-math -Ofast -mcpu=power10 -mrecip \
-funroll-loops -m64 -fgnu89-inline -Wno-multichar -DSPEC_LP64 \
-frandom-seed=spec2017 -D_XOPEN_SOURCE=500 -DSPEC_LINUX_PPC_LE \
-fno-strict-aliasing -std=gnu11 -Wno-builtin-macro-redefined -w
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug regression/103318] Spec 2017 benchmark perlbench_r fails on PowerPC for -Ofast and -O3, passes with -O2
2021-11-18 16:13 [Bug regression/103318] New: Spec 2017 benchmark perlbench_r fails on PowerPC for -Ofast and -O3, passes with -O2 meissner at gcc dot gnu.org
@ 2021-11-18 16:14 ` meissner at gcc dot gnu.org
2021-11-18 16:32 ` meissner at gcc dot gnu.org
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: meissner at gcc dot gnu.org @ 2021-11-18 16:14 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103318
Michael Meissner <meissner at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P2
Severity|normal |major
CC| |bergner at gcc dot gnu.org,
| |dje at gcc dot gnu.org,
| |meissner at gcc dot gnu.org,
| |segher at gcc dot gnu.org,
| |wschmidt at gcc dot gnu.org
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug regression/103318] Spec 2017 benchmark perlbench_r fails on PowerPC for -Ofast and -O3, passes with -O2
2021-11-18 16:13 [Bug regression/103318] New: Spec 2017 benchmark perlbench_r fails on PowerPC for -Ofast and -O3, passes with -O2 meissner at gcc dot gnu.org
2021-11-18 16:14 ` [Bug regression/103318] " meissner at gcc dot gnu.org
@ 2021-11-18 16:32 ` meissner at gcc dot gnu.org
2021-11-19 8:14 ` rguenth at gcc dot gnu.org
2024-05-02 21:31 ` pinskia at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: meissner at gcc dot gnu.org @ 2021-11-18 16:32 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103318
Michael Meissner <meissner at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P2 |P1
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug regression/103318] Spec 2017 benchmark perlbench_r fails on PowerPC for -Ofast and -O3, passes with -O2
2021-11-18 16:13 [Bug regression/103318] New: Spec 2017 benchmark perlbench_r fails on PowerPC for -Ofast and -O3, passes with -O2 meissner at gcc dot gnu.org
2021-11-18 16:14 ` [Bug regression/103318] " meissner at gcc dot gnu.org
2021-11-18 16:32 ` meissner at gcc dot gnu.org
@ 2021-11-19 8:14 ` rguenth at gcc dot gnu.org
2024-05-02 21:31 ` pinskia at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: rguenth at gcc dot gnu.org @ 2021-11-19 8:14 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103318
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |DUPLICATE
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
dup
*** This bug has been marked as a duplicate of bug 103088 ***
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug regression/103318] Spec 2017 benchmark perlbench_r fails on PowerPC for -Ofast and -O3, passes with -O2
2021-11-18 16:13 [Bug regression/103318] New: Spec 2017 benchmark perlbench_r fails on PowerPC for -Ofast and -O3, passes with -O2 meissner at gcc dot gnu.org
` (2 preceding siblings ...)
2021-11-19 8:14 ` rguenth at gcc dot gnu.org
@ 2024-05-02 21:31 ` pinskia at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: pinskia at gcc dot gnu.org @ 2024-05-02 21:31 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103318
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |guojiufu at gcc dot gnu.org
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
*** Bug 106928 has been marked as a duplicate of this bug. ***
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2024-05-02 21:31 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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2021-11-18 16:13 [Bug regression/103318] New: Spec 2017 benchmark perlbench_r fails on PowerPC for -Ofast and -O3, passes with -O2 meissner at gcc dot gnu.org
2021-11-18 16:14 ` [Bug regression/103318] " meissner at gcc dot gnu.org
2021-11-18 16:32 ` meissner at gcc dot gnu.org
2021-11-19 8:14 ` rguenth at gcc dot gnu.org
2024-05-02 21:31 ` pinskia at gcc dot gnu.org
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