libgcc/config/i386/i386-asm.h

   1 /* Defines common perprocessor and assembly macros for use by various stubs.
   2    Copyright (C) 2016-2017 Free Software Foundation, Inc.
   3    Contributed by Daniel Santos <daniel.santos@pobox.com>
   4
   5 This file is part of GCC.
   6
   7 GCC is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 3, or (at your option)
  10 any later version.
  11
  12 GCC is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 Under Section 7 of GPL version 3, you are granted additional
  18 permissions described in the GCC Runtime Library Exception, version
  19 3.1, as published by the Free Software Foundation.
  20
  21 You should have received a copy of the GNU General Public License and
  22 a copy of the GCC Runtime Library Exception along with this program;
  23 see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  24 <http://www.gnu.org/licenses/>.  */
  25
  26 #ifndef I386_ASM_H
  27 #define I386_ASM_H
  28
  29 #ifdef __ELF__
  30 # define ELFFN(fn) .type fn,@function
  31 #else
  32 # define ELFFN(fn)
  33 #endif
  34
  35 #define FUNC_START(fn)  \
  36         .global fn;     \
  37         ELFFN (fn);     \
  38 fn:
  39
  40 #define HIDDEN_FUNC(fn)\
  41         FUNC_START (fn) \
  42         .hidden fn;     \
  43
  44 #define FUNC_END(fn) .size fn,.-fn
  45
  46 #ifdef __SSE2__
  47 # ifdef __AVX__
  48 #  define MOVAPS vmovaps
  49 # else
  50 #  define MOVAPS movaps
  51 # endif
  52
  53 /* Save SSE registers 6-15. off is the offset of rax to get to xmm6.  */
  54 .macro SSE_SAVE off=0
  55         MOVAPS %xmm15,(\off - 0x90)(%rax)
  56         MOVAPS %xmm14,(\off - 0x80)(%rax)
  57         MOVAPS %xmm13,(\off - 0x70)(%rax)
  58         MOVAPS %xmm12,(\off - 0x60)(%rax)
  59         MOVAPS %xmm11,(\off - 0x50)(%rax)
  60         MOVAPS %xmm10,(\off - 0x40)(%rax)
  61         MOVAPS %xmm9, (\off - 0x30)(%rax)
  62         MOVAPS %xmm8, (\off - 0x20)(%rax)
  63         MOVAPS %xmm7, (\off - 0x10)(%rax)
  64         MOVAPS %xmm6, \off(%rax)
  65 .endm
  66
  67 /* Restore SSE registers 6-15. off is the offset of rsi to get to xmm6.  */
  68 .macro SSE_RESTORE off=0
  69         MOVAPS (\off - 0x90)(%rsi), %xmm15
  70         MOVAPS (\off - 0x80)(%rsi), %xmm14
  71         MOVAPS (\off - 0x70)(%rsi), %xmm13
  72         MOVAPS (\off - 0x60)(%rsi), %xmm12
  73         MOVAPS (\off - 0x50)(%rsi), %xmm11
  74         MOVAPS (\off - 0x40)(%rsi), %xmm10
  75         MOVAPS (\off - 0x30)(%rsi), %xmm9
  76         MOVAPS (\off - 0x20)(%rsi), %xmm8
  77         MOVAPS (\off - 0x10)(%rsi), %xmm7
  78         MOVAPS \off(%rsi), %xmm6
  79 .endm
  80
  81 #endif /* __SSE2__ */
  82 #endif /* I386_ASM_H */