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authorH.J. Lu <hjl.tools@gmail.com>2024-02-28 12:08:03 -0800
committerH.J. Lu <hjl.tools@gmail.com>2024-02-29 04:30:01 -0800
commit9b7091415af47082664717210ac49d51551456ab (patch)
treeb2754fd0f298085481c5ebcac55721a4eb09ef53 /configure
parenta1735e0aa858f0c8b15e5ee9975bff4279423680 (diff)
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x86-64: Update _dl_tlsdesc_dynamic to preserve AMX registers
_dl_tlsdesc_dynamic should also preserve AMX registers which are
caller-saved.  Add X86_XSTATE_TILECFG_ID and X86_XSTATE_TILEDATA_ID
to x86-64 TLSDESC_CALL_STATE_SAVE_MASK.  Compute the AMX state size
and save it in xsave_state_full_size which is only used by
_dl_tlsdesc_dynamic_xsave and _dl_tlsdesc_dynamic_xsavec.  This fixes
the AMX part of BZ #31372.  Tested on AMX processor.

AMX test is enabled only for compilers with the fix for

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114098

GCC 14 and GCC 11/12/13 branches have the bug fix.
Reviewed-by: Sunil K Pandey <skpgkp2@gmail.com>
Diffstat (limited to 'configure')
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