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* [Bug other/115140] New: [15 regression] libgomp.oacc-c++/../libgomp.oacc-c-c++-common/acc_prof-kernels-1.c excess errors after r15-579-ga9251ab3c91c8c
@ 2024-05-17 15:26 seurer at gcc dot gnu.org
2024-05-18 19:36 ` [Bug other/115140] " pinskia at gcc dot gnu.org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: seurer at gcc dot gnu.org @ 2024-05-17 15:26 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115140
Bug ID: 115140
Summary: [15 regression]
libgomp.oacc-c++/../libgomp.oacc-c-c++-common/acc_prof
-kernels-1.c excess errors after
r15-579-ga9251ab3c91c8c
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: other
Assignee: unassigned at gcc dot gnu.org
Reporter: seurer at gcc dot gnu.org
Target Milestone: ---
g:a9251ab3c91c8c559d0306838575a666ae62dff4, r15-579-ga9251ab3c91c8c: 1130
failures
FAIL: libgomp.oacc-c++/../libgomp.oacc-c-c++-common/acc_prof-kernels-1.c
-DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -foffload=disable -O2 at line
190 (test for warnings, line 185)
FAIL: libgomp.oacc-c++/../libgomp.oacc-c-c++-common/acc_prof-kernels-1.c
-DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -foffload=disable -O2 at line
221 (test for warnings, line 214)
FAIL: libgomp.oacc-c++/../libgomp.oacc-c-c++-common/acc_prof-kernels-1.c
-DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -foffload=disable -O2 at line
252 (test for warnings, line 245)
FAIL: libgomp.oacc-c++/../libgomp.oacc-c-c++-common/acc_prof-kernels-1.c
-DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -foffload=disable -O2 (test for
excess errors)
FAIL: libgomp.oacc-c/../libgomp.oacc-c-c++-common/acc_prof-kernels-1.c
-DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -foffload=disable -O2 at line
190 (test for warnings, line 185)
FAIL: libgomp.oacc-c/../libgomp.oacc-c-c++-common/acc_prof-kernels-1.c
-DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -foffload=disable -O2 at line
221 (test for warnings, line 214)
FAIL: libgomp.oacc-c/../libgomp.oacc-c-c++-common/acc_prof-kernels-1.c
-DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -foffload=disable -O2 at line
252 (test for warnings, line 245)
FAIL: libgomp.oacc-c/../libgomp.oacc-c-c++-common/acc_prof-kernels-1.c
-DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -foffload=disable -O2 (test for
excess errors)
commit a9251ab3c91c8c559d0306838575a666ae62dff4 (HEAD)
Author: Richard Biener <rguenther@suse.de>
Date: Thu May 16 12:35:28 2024 +0200
wrong code with points-to and volatile
Excess errors:
/home/seurer/gcc/git/gcc-test2/libgomp/testsuite/libgomp.oacc-c/../libgomp.oacc-c-c++-common/acc_prof-kernels-1.c:185:9:
optimized: assigned OpenACC seq loop parallelism
/home/seurer/gcc/git/gcc-test2/libgomp/testsuite/libgomp.oacc-c/../libgomp.oacc-c-c++-common/acc_prof-kernels-1.c:214:9:
optimized: assigned OpenACC seq loop parallelism
/home/seurer/gcc/git/gcc-test2/libgomp/testsuite/libgomp.oacc-c/../libgomp.oacc-c-c++-common/acc_prof-kernels-1.c:245:9:
optimized: assigned OpenACC seq loop parallelism
^ permalink raw reply [flat|nested] 5+ messages in thread* [Bug other/115140] [15 regression] libgomp.oacc-c++/../libgomp.oacc-c-c++-common/acc_prof-kernels-1.c excess errors after r15-579-ga9251ab3c91c8c
2024-05-17 15:26 [Bug other/115140] New: [15 regression] libgomp.oacc-c++/../libgomp.oacc-c-c++-common/acc_prof-kernels-1.c excess errors after r15-579-ga9251ab3c91c8c seurer at gcc dot gnu.org
@ 2024-05-18 19:36 ` pinskia at gcc dot gnu.org
2024-05-21 6:30 ` [Bug testsuite/115140] " rguenth at gcc dot gnu.org
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: pinskia at gcc dot gnu.org @ 2024-05-18 19:36 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115140
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |15.0
^ permalink raw reply [flat|nested] 5+ messages in thread* [Bug testsuite/115140] [15 regression] libgomp.oacc-c++/../libgomp.oacc-c-c++-common/acc_prof-kernels-1.c excess errors after r15-579-ga9251ab3c91c8c
2024-05-17 15:26 [Bug other/115140] New: [15 regression] libgomp.oacc-c++/../libgomp.oacc-c-c++-common/acc_prof-kernels-1.c excess errors after r15-579-ga9251ab3c91c8c seurer at gcc dot gnu.org
2024-05-18 19:36 ` [Bug other/115140] " pinskia at gcc dot gnu.org
@ 2024-05-21 6:30 ` rguenth at gcc dot gnu.org
2024-05-22 11:50 ` ro at gcc dot gnu.org
2024-05-24 6:39 ` tschwinge at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: rguenth at gcc dot gnu.org @ 2024-05-21 6:30 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115140
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|other |testsuite
Keywords| |openacc
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Looks like a testsuite artifact?
volatile // TODO PR90488
static int state = -1;
I've not looked as to why/how we are getting that to influence points-to
solutions (note as we track also integers volatile on non-pointers can
matter).
^ permalink raw reply [flat|nested] 5+ messages in thread* [Bug testsuite/115140] [15 regression] libgomp.oacc-c++/../libgomp.oacc-c-c++-common/acc_prof-kernels-1.c excess errors after r15-579-ga9251ab3c91c8c
2024-05-17 15:26 [Bug other/115140] New: [15 regression] libgomp.oacc-c++/../libgomp.oacc-c-c++-common/acc_prof-kernels-1.c excess errors after r15-579-ga9251ab3c91c8c seurer at gcc dot gnu.org
2024-05-18 19:36 ` [Bug other/115140] " pinskia at gcc dot gnu.org
2024-05-21 6:30 ` [Bug testsuite/115140] " rguenth at gcc dot gnu.org
@ 2024-05-22 11:50 ` ro at gcc dot gnu.org
2024-05-24 6:39 ` tschwinge at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: ro at gcc dot gnu.org @ 2024-05-22 11:50 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115140
Rainer Orth <ro at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Host|powerpc64-linux-gnu, |powerpc64-linux-gnu,
|powerpc64le-linux-gnu |powerpc64le-linux-gnu,
| |*-*-solaris2.11
CC| |ro at gcc dot gnu.org
Build|powerpc64-linux-gnu, |powerpc64-linux-gnu,
|powerpc64le-linux-gnu |powerpc64le-linux-gnu,
| |*-*-solaris2.11
Target|powerpc64-linux-gnu, |powerpc64-linux-gnu,
|powerpc64le-linux-gnu |powerpc64le-linux-gnu,
| |*-*-solaris2.11
--- Comment #2 from Rainer Orth <ro at gcc dot gnu.org> ---
Also seen on Solaris/SPARC and x86.
^ permalink raw reply [flat|nested] 5+ messages in thread* [Bug testsuite/115140] [15 regression] libgomp.oacc-c++/../libgomp.oacc-c-c++-common/acc_prof-kernels-1.c excess errors after r15-579-ga9251ab3c91c8c
2024-05-17 15:26 [Bug other/115140] New: [15 regression] libgomp.oacc-c++/../libgomp.oacc-c-c++-common/acc_prof-kernels-1.c excess errors after r15-579-ga9251ab3c91c8c seurer at gcc dot gnu.org
` (2 preceding siblings ...)
2024-05-22 11:50 ` ro at gcc dot gnu.org
@ 2024-05-24 6:39 ` tschwinge at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: tschwinge at gcc dot gnu.org @ 2024-05-24 6:39 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115140
Thomas Schwinge <tschwinge at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Host|powerpc64-linux-gnu, |
|powerpc64le-linux-gnu, |
|*-*-solaris2.11 |
Build|powerpc64-linux-gnu, |
|powerpc64le-linux-gnu, |
|*-*-solaris2.11 |
CC| |tschwinge at gcc dot gnu.org
Status|UNCONFIRMED |NEW
Target|powerpc64-linux-gnu, |
|powerpc64le-linux-gnu, |
|*-*-solaris2.11 |
Last reconfirmed| |2024-05-24
Ever confirmed|0 |1
--- Comment #3 from Thomas Schwinge <tschwinge at gcc dot gnu.org> ---
So the PASS -> FAIL regressions are due to parloops (for '-O2') no longer
parallelizing the simple OpenACC 'kernels' construct at line 185 (and two
more):
int x[N];
#pragma acc kernels
{
for (int i = 0; i < N; ++i)
x[i] = i * i;
}
(In reply to Richard Biener from comment #1)
> Looks like a testsuite artifact?
>
> volatile // TODO PR90488
> static int state = -1;
>
> I've not looked as to why/how we are getting that to influence points-to
> solutions (note as we track also integers volatile on non-pointers can
> matter).
Yeah, it's not obvious to me how that 'state' variable would have such an
effect -- but I've not yet 'diff'ed the dumps.
On the other hand, it's highly likely that there is some relation, as no other
OpenACC 'kernels' test cases did regress.
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2024-05-24 6:39 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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2024-05-17 15:26 [Bug other/115140] New: [15 regression] libgomp.oacc-c++/../libgomp.oacc-c-c++-common/acc_prof-kernels-1.c excess errors after r15-579-ga9251ab3c91c8c seurer at gcc dot gnu.org
2024-05-18 19:36 ` [Bug other/115140] " pinskia at gcc dot gnu.org
2024-05-21 6:30 ` [Bug testsuite/115140] " rguenth at gcc dot gnu.org
2024-05-22 11:50 ` ro at gcc dot gnu.org
2024-05-24 6:39 ` tschwinge at gcc dot gnu.org
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