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52ab7604db
1) Copy so that backport will be easier.
2) Make section only define if there is not a previous definition
3) Add `VEC_lo` definition for proper reg-width but in the
ymm/zmm0-15 range.
4) Add macros for accessing GPRs based on VEC_SIZE
This is to make it easier to do think like:
```
vpcmpb %VEC(0), %VEC(1), %k0
kmov{d|q} %k0, %{eax|rax}
test %{eax|rax}
```
It adds macro s.t any GPR can get the proper width with:
`V{upcase_GPR_name}`
and any mask insn can get the proper width with:
`{upcase_mask_insn_without_postfix}`
This commit does not change libc.so
Tested build on x86-64
36 lines
1.2 KiB
C
36 lines
1.2 KiB
C
/* Common config for AVX-RTM VECs
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All versions must be listed in ifunc-impl-list.c.
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Copyright (C) 2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#ifndef _X86_AVX_RTM_VECS_H
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#define _X86_AVX_RTM_VECS_H 1
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#define COND_VZEROUPPER COND_VZEROUPPER_XTEST
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#define ZERO_UPPER_VEC_REGISTERS_RETURN \
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ZERO_UPPER_VEC_REGISTERS_RETURN_XTEST
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#define VZEROUPPER_RETURN jmp L(return_vzeroupper)
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#define USE_WITH_RTM 1
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#include "x86-avx-vecs.h"
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#undef SECTION
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#define SECTION(p) p##.avx.rtm
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#endif
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