glibc

Commit Graph

Author	SHA1	Message	Date
Paul Eggert	2642002380	Update copyright dates with scripts/update-copyrights	2025-01-01 11:22:09 -08:00
Adhemerval Zanella	a2b0ff98a0	include/sys/cdefs.h: Add __attribute_optimization_barrier__ Add __attribute_optimization_barrier__ to disable inlining and cloning on a function. For Clang, expand it to __attribute__ ((optnone)) Otherwise, expand it to __attribute__ ((noinline, clone)) Co-Authored-By: H.J. Lu <hjl.tools@gmail.com> Reviewed-by: Sam James <sam@gentoo.org>	2024-12-23 06:28:55 +08:00
H.J. Lu	9b7091415a	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>	2024-02-29 04:30:01 -08:00

Author

SHA1

Message

Date

Paul Eggert

2642002380

Update copyright dates with scripts/update-copyrights

2025-01-01 11:22:09 -08:00

Adhemerval Zanella

a2b0ff98a0

include/sys/cdefs.h: Add __attribute_optimization_barrier__

Add __attribute_optimization_barrier__ to disable inlining and cloning on a
function.  For Clang, expand it to

__attribute__ ((optnone))

Otherwise, expand it to

__attribute__ ((noinline, clone))

Co-Authored-By: H.J. Lu <hjl.tools@gmail.com>
Reviewed-by: Sam James <sam@gentoo.org>

2024-12-23 06:28:55 +08:00

H.J. Lu

9b7091415a

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>

2024-02-29 04:30:01 -08:00

3 Commits