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* [Bug target/108809] New: gcc.target/powerpc/builtins-5-p9-runnable.c fails on power 9 BE
@ 2023-02-15 21:57 seurer at gcc dot gnu.org
2023-03-09 7:35 ` [Bug target/108809] " linkw at gcc dot gnu.org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: seurer at gcc dot gnu.org @ 2023-02-15 21:57 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108809
Bug ID: 108809
Summary: gcc.target/powerpc/builtins-5-p9-runnable.c fails on
power 9 BE
Product: gcc
Version: 13.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: seurer at gcc dot gnu.org
Target Milestone: ---
make -k check-gcc RUNTESTFLAGS="--target_board=unix'{-m32,-m64}'
powerpc.exp=gcc.target/powerpc/builtins-5-p9-runnable.c"
FAIL: gcc.target/powerpc/builtins-5-p9-runnable.c execution test
FAIL: gcc.target/powerpc/builtins-5-p9-runnable.c -O0 execution test
FAIL: gcc.target/powerpc/builtins-5-p9-runnable.c -Os execution test
FAIL: gcc.target/powerpc/builtins-5-p9-runnable.c -O1 execution test
FAIL: gcc.target/powerpc/builtins-5-p9-runnable.c -O2 execution test
FAIL: gcc.target/powerpc/builtins-5-p9-runnable.c -O3 execution test
This fails on power 9 BE (only) and fails for trunk as well as gcc 12, 11, and
10.
(gdb) run
Starting program: /home/seurer/gcc/git/build/gcc-10/builtins-5-p9-runnable.exe
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/powerpc64-linux-gnu/libthread_db.so.1".
Program received signal SIGABRT, Aborted.
__pthread_kill_implementation (threadid=<optimized out>, signo=<optimized out>,
no_tid=<optimized out>) at pthread_kill.c:44
44 pthread_kill.c: No such file or directory.
(gdb) where
#0 __pthread_kill_implementation (threadid=<optimized out>, signo=<optimized
out>, no_tid=<optimized out>) at pthread_kill.c:44
#1 0x00007ffff7c90cb4 in __GI_raise (sig=<optimized out>) at
../sysdeps/posix/raise.c:26
#2 0x00007ffff7c749ec in __GI_abort () at abort.c:79
#3 0x00000000100005e8 in main () at
/home/seurer/gcc/git/gcc-10/gcc/testsuite/gcc.target/powerpc/builtins-5-p9-runnable.c:71
If I run it with DEBUG defined I get
seurer@perfzep2:~/gcc/git/build/gcc-10$ ./builtins-5-p9-runnable.exe
Error: result does not match expected result
vec_xl_len_r(8): vec_uc_expected1[0] to vec_uc_expected1[15]
8, 7, 6, 5, 4, 3, 2, 1, 0, 0, 0, 0, 0, 0, 0, 0,
vec_xl_len_r(8): vec_uc_result1[0] to vec_uc_result1[15]
0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 5, 6, 7, 8,
Error: result does not match expected result
vec_xl_len_r(4): vec_uc_expected1[0] to vec_uc_expected1[15]
4, 3, 2, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
vec_xl_len_r(4): vec_uc_result1[0] to vec_uc_result1[15]
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4,
Error: result does not match expected result
vec_xl_len_r(2): vec_uc_expected1[0] to vec_uc_expected1[15]
2, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
vec_xl_len_r(2) vec_uc_result1[0] to vec_uc_result1[15]
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2,
Error: result does not match expected result
vec_xst_len_r(16) vec_uc_expected1[0] to vec_uc_expected1[15]
16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1,
vec_xst_len_r(16) result[0] to result[15]
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
Error: result does not match expected result
vec_xst_len_r(2) vec_uc_expected1[0] to vec_uc_expected1[15]
2, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
vec_xst_len_r(2) result[0] to result[15]
15, 16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
Error: result does not match expected result
vec_xst_len_r(16) vec_uc_expected1[0] to vec_uc_expected1[15]
16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1,
vec_xst_len_r(16) result[0] to result[15]
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
Error: result does not match expected result
vec_xst_len_r(14) vec_uc_expected1[0] to vec_uc_expected1[15]
14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0, 0,
vec_xst_len_r(14) result[0] to result[15]
3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 0, 0,
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/108809] gcc.target/powerpc/builtins-5-p9-runnable.c fails on power 9 BE
2023-02-15 21:57 [Bug target/108809] New: gcc.target/powerpc/builtins-5-p9-runnable.c fails on power 9 BE seurer at gcc dot gnu.org
@ 2023-03-09 7:35 ` linkw at gcc dot gnu.org
2023-04-13 9:43 ` guojiufu at gcc dot gnu.org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: linkw at gcc dot gnu.org @ 2023-03-09 7:35 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108809
Kewen Lin <linkw at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |linkw at gcc dot gnu.org
Last reconfirmed| |2023-03-09
Status|UNCONFIRMED |NEW
Ever confirmed|0 |1
--- Comment #1 from Kewen Lin <linkw at gcc dot gnu.org> ---
It's very likely a test issue, may need to adjust some built-in function for
endianness issue (as they have different element ordering on BE and LE).
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/108809] gcc.target/powerpc/builtins-5-p9-runnable.c fails on power 9 BE
2023-02-15 21:57 [Bug target/108809] New: gcc.target/powerpc/builtins-5-p9-runnable.c fails on power 9 BE seurer at gcc dot gnu.org
2023-03-09 7:35 ` [Bug target/108809] " linkw at gcc dot gnu.org
@ 2023-04-13 9:43 ` guojiufu at gcc dot gnu.org
2023-04-13 12:43 ` guojiufu at gcc dot gnu.org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: guojiufu at gcc dot gnu.org @ 2023-04-13 9:43 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108809
Jiu Fu Guo <guojiufu at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |guojiufu at gcc dot gnu.org
--- Comment #2 from Jiu Fu Guo <guojiufu at gcc dot gnu.org> ---
(In reply to Kewen Lin from comment #1)
> It's very likely a test issue, may need to adjust some built-in function for
> endianness issue (as they have different element ordering on BE and LE).
Yeap it should be the test case issue on the difference between BE and LE:
For a buff `\001\002\003\004\005\006\a\b\t\n\v\f\r\016\017\020\021\022`,
after loading to a vector right justified, the result is different between BE
and LE.
e.g. for a vector (from 128bit view: 0x0000000000000000102030405060708),
from v16_int8 view on BE, it is v16_int8 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8}; but from the v16_int8 view on LE,
it is v16_int8 = {0x8, 0x7, 0x6, 0x5, 0x4, 0x3, 0x2, 0x1, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0}.
So, we would just need to update the expected result for BE for this test case.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/108809] gcc.target/powerpc/builtins-5-p9-runnable.c fails on power 9 BE
2023-02-15 21:57 [Bug target/108809] New: gcc.target/powerpc/builtins-5-p9-runnable.c fails on power 9 BE seurer at gcc dot gnu.org
2023-03-09 7:35 ` [Bug target/108809] " linkw at gcc dot gnu.org
2023-04-13 9:43 ` guojiufu at gcc dot gnu.org
@ 2023-04-13 12:43 ` guojiufu at gcc dot gnu.org
2023-04-17 2:39 ` [Bug testsuite/108809] " cvs-commit at gcc dot gnu.org
2023-05-09 7:37 ` guojiufu at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: guojiufu at gcc dot gnu.org @ 2023-04-13 12:43 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108809
--- Comment #3 from Jiu Fu Guo <guojiufu at gcc dot gnu.org> ---
A similar different view between BE and LE on the vector for vec_xst_len_r.
For:
store_data_uc = (vector unsigned char){ 1, 2, 3, 4, 5, 6, 7, 8,
9, 10, 11, 12, 13, 14, 15, 16 };
vec_xst_len_r(store_data_uc, address, size);
On BE, from 128bit view (corresponding to store_data_uc) is
`0x102030405060708090a0b0c0d0e0f10`.
But on LE, from 128bit view, it is `0x100f0e0d0c0b0a090807060504030201`.
After right justified (left clean to 0s), the effective bytes to be stored to
buff on LE are those with smaller values (1,2,...);
On BE, the bytes to be stored are those with bigger values (16,15,...)
BTW: the generated insn sequence aligns with the example implementation in
PVIPR.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug testsuite/108809] gcc.target/powerpc/builtins-5-p9-runnable.c fails on power 9 BE
2023-02-15 21:57 [Bug target/108809] New: gcc.target/powerpc/builtins-5-p9-runnable.c fails on power 9 BE seurer at gcc dot gnu.org
` (2 preceding siblings ...)
2023-04-13 12:43 ` guojiufu at gcc dot gnu.org
@ 2023-04-17 2:39 ` cvs-commit at gcc dot gnu.org
2023-05-09 7:37 ` guojiufu at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2023-04-17 2:39 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108809
--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jiu Fu Guo <guojiufu@gcc.gnu.org>:
https://gcc.gnu.org/g:a1f25e04b8d10bbe5dcaf98bb7e17cdaec9f169d
commit r13-7202-ga1f25e04b8d10bbe5dcaf98bb7e17cdaec9f169d
Author: Jiufu Guo <guojiufu@linux.ibm.com>
Date: Fri Apr 14 10:50:28 2023 +0800
testsuite: update builtins-5-p9-runnable.c for BE
Hi,
As PR108809 mentioned, vec_xl_len_r and vec_xst_len_r are tested
in gcc.target/powerpc/builtins-5-p9-runnable.c.
The vector operand of these two bifs are different from the view
of v16_int8 between BE and LE, even it is same from the view of
128bits(uint128/V1TI).
The test case gcc.target/powerpc/builtins-5-p9-runnable.c was
written for LE environment, this patch updates it for BE.
Tested on ppc64 BE and LE.
Is this ok for trunk?
BR,
Jeff (Jiufu)
gcc/testsuite/ChangeLog:
PR testsuite/108809
* gcc.target/powerpc/builtins-5-p9-runnable.c: Update for BE.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug testsuite/108809] gcc.target/powerpc/builtins-5-p9-runnable.c fails on power 9 BE
2023-02-15 21:57 [Bug target/108809] New: gcc.target/powerpc/builtins-5-p9-runnable.c fails on power 9 BE seurer at gcc dot gnu.org
` (3 preceding siblings ...)
2023-04-17 2:39 ` [Bug testsuite/108809] " cvs-commit at gcc dot gnu.org
@ 2023-05-09 7:37 ` guojiufu at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: guojiufu at gcc dot gnu.org @ 2023-05-09 7:37 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108809
Jiu Fu Guo <guojiufu at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|NEW |RESOLVED
--- Comment #5 from Jiu Fu Guo <guojiufu at gcc dot gnu.org> ---
Fixed in the trunk.
^ permalink raw reply [flat|nested] 6+ messages in thread
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