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* [Bug target/97367] New: powerpc64 g5 and cell optimizations result in .machine power7
@ 2020-10-11 10:59 rene at exactcode dot de
2020-12-06 15:27 ` [Bug target/97367] " mikpelinux at gmail dot com
` (7 more replies)
0 siblings, 8 replies; 9+ messages in thread
From: rene at exactcode dot de @ 2020-10-11 10:59 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97367
Bug ID: 97367
Summary: powerpc64 g5 and cell optimizations result in .machine
power7
Product: gcc
Version: 10.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: rene at exactcode dot de
Target Milestone: ---
Created attachment 49341
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=49341&action=edit
Patch
Since reworking the rs6000 .machine output selection in commit
e154242724b084380e3221df7c08fcdbd8460674 22 May 2019, compiling glibc with
either G5 or cell results in power7 assembly optimizations to be chosen, which
obviously crash with illegal instructions. This is because gcc's .machine
output was accidentally changed due to OPTION_MASK_ALTIVEC only otherwise
present in IBM CPUs since power7.
powerpc64-t2-linux-gnu-gcc test.c -S -o - -mcpu=G5
.file "test.c"
.machine power7
.abiversion 2
.section ".text"
.ident "GCC: (GNU) 10.2.0"
.section .note.GNU-stack,"",@progbits
Attached patch fixes this to filter out ALTIVEC just like GFXOPT and GPOPT.
^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug target/97367] powerpc64 g5 and cell optimizations result in .machine power7
2020-10-11 10:59 [Bug target/97367] New: powerpc64 g5 and cell optimizations result in .machine power7 rene at exactcode dot de
@ 2020-12-06 15:27 ` mikpelinux at gmail dot com
2021-04-28 10:24 ` redi at gcc dot gnu.org
` (6 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: mikpelinux at gmail dot com @ 2020-12-06 15:27 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97367
Mikael Pettersson <mikpelinux at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |mikpelinux at gmail dot com
--- Comment #1 from Mikael Pettersson <mikpelinux at gmail dot com> ---
Care to submit this to gcc-patches?
^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug target/97367] powerpc64 g5 and cell optimizations result in .machine power7
2020-10-11 10:59 [Bug target/97367] New: powerpc64 g5 and cell optimizations result in .machine power7 rene at exactcode dot de
2020-12-06 15:27 ` [Bug target/97367] " mikpelinux at gmail dot com
@ 2021-04-28 10:24 ` redi at gcc dot gnu.org
2021-04-28 10:33 ` redi at gcc dot gnu.org
` (5 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: redi at gcc dot gnu.org @ 2021-04-28 10:24 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97367
--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Mikael Pettersson from comment #1)
> Care to submit this to gcc-patches?
Please send it to the mailing list. Patches don't go in bugzilla, thanks.
https://gcc.gnu.org/contribute.html#patches
^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug target/97367] powerpc64 g5 and cell optimizations result in .machine power7
2020-10-11 10:59 [Bug target/97367] New: powerpc64 g5 and cell optimizations result in .machine power7 rene at exactcode dot de
2020-12-06 15:27 ` [Bug target/97367] " mikpelinux at gmail dot com
2021-04-28 10:24 ` redi at gcc dot gnu.org
@ 2021-04-28 10:33 ` redi at gcc dot gnu.org
2021-04-28 10:36 ` redi at gcc dot gnu.org
` (4 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: redi at gcc dot gnu.org @ 2021-04-28 10:33 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97367
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |patch
URL| |https://gcc.gnu.org/piperma
| |il/gcc-patches/2020-Decembe
| |r/560994.html
Target|powerpc |powerpc*-*-*
--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Ah yes, it was sent to the ML:
https://gcc.gnu.org/pipermail/gcc-patches/2020-December/560994.html
^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug target/97367] powerpc64 g5 and cell optimizations result in .machine power7
2020-10-11 10:59 [Bug target/97367] New: powerpc64 g5 and cell optimizations result in .machine power7 rene at exactcode dot de
` (2 preceding siblings ...)
2021-04-28 10:33 ` redi at gcc dot gnu.org
@ 2021-04-28 10:36 ` redi at gcc dot gnu.org
2024-03-08 8:59 ` rene at exactcode dot de
` (3 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: redi at gcc dot gnu.org @ 2021-04-28 10:36 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97367
--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Rebased patch:
https://svn.exactcode.de/t2/trunk/package/develop/gcc/g5-cell-not-power7.patch
^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug target/97367] powerpc64 g5 and cell optimizations result in .machine power7
2020-10-11 10:59 [Bug target/97367] New: powerpc64 g5 and cell optimizations result in .machine power7 rene at exactcode dot de
` (3 preceding siblings ...)
2021-04-28 10:36 ` redi at gcc dot gnu.org
@ 2024-03-08 8:59 ` rene at exactcode dot de
2024-03-08 9:21 ` sjames at gcc dot gnu.org
` (2 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: rene at exactcode dot de @ 2024-03-08 8:59 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97367
--- Comment #5 from René Rebe <rene at exactcode dot de> ---
latest version:
https://svn.exactcode.de/t2/trunk/package/develop/gcc/hotfix-g5-power4.patch
^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug target/97367] powerpc64 g5 and cell optimizations result in .machine power7
2020-10-11 10:59 [Bug target/97367] New: powerpc64 g5 and cell optimizations result in .machine power7 rene at exactcode dot de
` (4 preceding siblings ...)
2024-03-08 8:59 ` rene at exactcode dot de
@ 2024-03-08 9:21 ` sjames at gcc dot gnu.org
2024-03-08 21:30 ` bergner at gcc dot gnu.org
2024-06-12 19:51 ` redi at gcc dot gnu.org
7 siblings, 0 replies; 9+ messages in thread
From: sjames at gcc dot gnu.org @ 2024-03-08 9:21 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97367
Sam James <sjames at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |sjames at gcc dot gnu.org
--- Comment #6 from Sam James <sjames at gcc dot gnu.org> ---
Please send it to the ML with git-send-email.
^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug target/97367] powerpc64 g5 and cell optimizations result in .machine power7
2020-10-11 10:59 [Bug target/97367] New: powerpc64 g5 and cell optimizations result in .machine power7 rene at exactcode dot de
` (5 preceding siblings ...)
2024-03-08 9:21 ` sjames at gcc dot gnu.org
@ 2024-03-08 21:30 ` bergner at gcc dot gnu.org
2024-06-12 19:51 ` redi at gcc dot gnu.org
7 siblings, 0 replies; 9+ messages in thread
From: bergner at gcc dot gnu.org @ 2024-03-08 21:30 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97367
Peter Bergner <bergner at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |linkw at gcc dot gnu.org
--- Comment #7 from Peter Bergner <bergner at gcc dot gnu.org> ---
(In reply to Sam James from comment #6)
> Please send it to the ML with git-send-email.
...and CC our port maintainers, Segher, Ke Wen and David who are all on CC
here.
^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug target/97367] powerpc64 g5 and cell optimizations result in .machine power7
2020-10-11 10:59 [Bug target/97367] New: powerpc64 g5 and cell optimizations result in .machine power7 rene at exactcode dot de
` (6 preceding siblings ...)
2024-03-08 21:30 ` bergner at gcc dot gnu.org
@ 2024-06-12 19:51 ` redi at gcc dot gnu.org
7 siblings, 0 replies; 9+ messages in thread
From: redi at gcc dot gnu.org @ 2024-06-12 19:51 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97367
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
URL|https://gcc.gnu.org/piperma |https://gcc.gnu.org/piperma
|il/gcc-patches/2020-Decembe |il/gcc-patches/2024-June/65
|r/560994.html |4217.html
--- Comment #8 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Updated patch https://gcc.gnu.org/pipermail/gcc-patches/2024-June/654217.html
^ permalink raw reply [flat|nested] 9+ messages in thread
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2020-10-11 10:59 [Bug target/97367] New: powerpc64 g5 and cell optimizations result in .machine power7 rene at exactcode dot de
2020-12-06 15:27 ` [Bug target/97367] " mikpelinux at gmail dot com
2021-04-28 10:24 ` redi at gcc dot gnu.org
2021-04-28 10:33 ` redi at gcc dot gnu.org
2021-04-28 10:36 ` redi at gcc dot gnu.org
2024-03-08 8:59 ` rene at exactcode dot de
2024-03-08 9:21 ` sjames at gcc dot gnu.org
2024-03-08 21:30 ` bergner at gcc dot gnu.org
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