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https://sourceware.org/git/glibc.git
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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
48 lines
1.3 KiB
C
48 lines
1.3 KiB
C
/* Common config for SSE2 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_SSE2_VECS_H
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#define _X86_SSE2_VECS_H 1
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#ifdef VEC_SIZE
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# error "Multiple VEC configs included!"
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#endif
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#define VEC_SIZE 16
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#include "x86-vec-macros.h"
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#define USE_WITH_SSE2 1
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#define SECTION(p) p
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/* 3-byte mov instructions with SSE2. */
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#define MOV_SIZE 3
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/* No vzeroupper needed. */
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#define RET_SIZE 1
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#define VZEROUPPER
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#define VMOVU movups
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#define VMOVA movaps
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#define VMOVNT movntdq
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#define VMM_128 VMM_any_xmm
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#define VMM VMM_any_xmm
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#endif
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