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* [Bug debug/104169] New: GDB unable to set $xmm2-7 register but able to set $xmm0-1 on non-AVX machines
@ 2022-01-21 20:01 contact at lsferreira dot net
2022-01-21 20:12 ` [Bug debug/104169] " pinskia at gcc dot gnu.org
2022-01-21 20:25 ` contact at lsferreira dot net
0 siblings, 2 replies; 3+ messages in thread
From: contact at lsferreira dot net @ 2022-01-21 20:01 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104169
Bug ID: 104169
Summary: GDB unable to set $xmm2-7 register but able to set
$xmm0-1 on non-AVX machines
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: debug
Assignee: unassigned at gcc dot gnu.org
Reporter: contact at lsferreira dot net
Target Milestone: ---
When running on my "Intel(R) Xeon(R) CPU E7-4860", I can't set xmm2 to xmm7
registers on GDB. On a more recent CPU "Intel(R) Core(TM) m3-7Y30" this seems
to set just fine. I also tested this on a libvirt clean environment with an
Intel Core 2 Duo and Intel Ivy Bridge family CPU (emulated settings), and the
one without AVX did fail to set.
To reproduce the issue, you can run any process on a non-AVX machine:
$ gdb /usr/bin/bash
> r -c 'kill -SIGILL $$'
> p $xmm7.uint128
> set $xmm7.uint128 = 35322350018591
> p $xmm7.uint128
If you try with $xmm0 or $xmm1 it works just fine.
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug debug/104169] GDB unable to set $xmm2-7 register but able to set $xmm0-1 on non-AVX machines
2022-01-21 20:01 [Bug debug/104169] New: GDB unable to set $xmm2-7 register but able to set $xmm0-1 on non-AVX machines contact at lsferreira dot net
@ 2022-01-21 20:12 ` pinskia at gcc dot gnu.org
2022-01-21 20:25 ` contact at lsferreira dot net
1 sibling, 0 replies; 3+ messages in thread
From: pinskia at gcc dot gnu.org @ 2022-01-21 20:12 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104169
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |MOVED
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Please file this to the gdb bugzilla which is located at
https://sourceware.org/bugzilla/ .
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug debug/104169] GDB unable to set $xmm2-7 register but able to set $xmm0-1 on non-AVX machines
2022-01-21 20:01 [Bug debug/104169] New: GDB unable to set $xmm2-7 register but able to set $xmm0-1 on non-AVX machines contact at lsferreira dot net
2022-01-21 20:12 ` [Bug debug/104169] " pinskia at gcc dot gnu.org
@ 2022-01-21 20:25 ` contact at lsferreira dot net
1 sibling, 0 replies; 3+ messages in thread
From: contact at lsferreira dot net @ 2022-01-21 20:25 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104169
--- Comment #2 from Luís Ferreira <contact at lsferreira dot net> ---
Thanks for the information. Just cross-referencing here:
https://sourceware.org/bugzilla/show_bug.cgi?id=28803 .
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2022-01-21 20:25 UTC | newest]
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2022-01-21 20:01 [Bug debug/104169] New: GDB unable to set $xmm2-7 register but able to set $xmm0-1 on non-AVX machines contact at lsferreira dot net
2022-01-21 20:12 ` [Bug debug/104169] " pinskia at gcc dot gnu.org
2022-01-21 20:25 ` contact at lsferreira dot net
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