gdb/testsuite/gdb.arch/i386-sse.c

   1 /* Test program for SSE registers.
   2
   3    Copyright 2004-2024 Free Software Foundation, Inc.
   4
   5    This file is part of GDB.
   6
   7    This program 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 of the License, or
  10    (at your option) any later version.
  11
  12    This program 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    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  19
  20 #include <stdio.h>
  21 #include "nat/x86-cpuid.h"
  22
  23 /* Align sufficient to be able to use movaps.  */
  24 #define ALIGN 16
  25
  26 typedef struct {
  27   _Alignas (ALIGN) float f[4];
  28 } v4sf_t;
  29
  30
  31 v4sf_t data_orig[] =
  32   {
  33     { {  0.0,  0.25,  0.50,  0.75 } },
  34     { {  1.0,  1.25,  1.50,  1.75 } },
  35     { {  2.0,  2.25,  2.50,  2.75 } },
  36     { {  3.0,  3.25,  3.50,  3.75 } },
  37     { {  4.0,  4.25,  4.50,  4.75 } },
  38     { {  5.0,  5.25,  5.50,  5.75 } },
  39     { {  6.0,  6.25,  6.50,  6.75 } },
  40     { {  7.0,  7.25,  7.50,  7.75 } },
  41 #ifdef __x86_64__
  42     { {  8.0,  8.25,  8.50,  8.75 } },
  43     { {  9.0,  9.25,  9.50,  9.75 } },
  44     { { 10.0, 10.25, 10.50, 10.75 } },
  45     { { 11.0, 11.25, 11.50, 11.75 } },
  46     { { 12.0, 12.25, 12.50, 12.75 } },
  47     { { 13.0, 13.25, 13.50, 13.75 } },
  48     { { 14.0, 14.25, 14.50, 14.75 } },
  49     { { 15.0, 15.25, 15.50, 15.75 } },
  50 #endif
  51   };
  52
  53
  54 int
  55 have_sse (void)
  56 {
  57   unsigned int edx;
  58
  59   if (!x86_cpuid (1, NULL, NULL, NULL, &edx))
  60     return 0;
  61
  62   if (edx & bit_SSE)
  63     return 1;
  64   else
  65     return 0;
  66 }
  67
  68 #include "precise-aligned-alloc.c"
  69
  70 int
  71 main (int argc, char **argv)
  72 {
  73   void *allocated_ptr;
  74   v4sf_t *data
  75     = precise_aligned_dup (ALIGN, sizeof (data_orig), &allocated_ptr,
  76                            data_orig);
  77
  78   if (have_sse ())
  79     {
  80       asm ("movaps 0(%0), %%xmm0\n\t"
  81            "movaps 16(%0), %%xmm1\n\t"
  82            "movaps 32(%0), %%xmm2\n\t"
  83            "movaps 48(%0), %%xmm3\n\t"
  84            "movaps 64(%0), %%xmm4\n\t"
  85            "movaps 80(%0), %%xmm5\n\t"
  86            "movaps 96(%0), %%xmm6\n\t"
  87            "movaps 112(%0), %%xmm7\n\t"
  88            : /* no output operands */
  89            : "r" (data)
  90            : "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7");
  91 #ifdef __x86_64__
  92       asm ("movaps 128(%0), %%xmm8\n\t"
  93            "movaps 144(%0), %%xmm9\n\t"
  94            "movaps 160(%0), %%xmm10\n\t"
  95            "movaps 176(%0), %%xmm11\n\t"
  96            "movaps 192(%0), %%xmm12\n\t"
  97            "movaps 208(%0), %%xmm13\n\t"
  98            "movaps 224(%0), %%xmm14\n\t"
  99            "movaps 240(%0), %%xmm15\n\t"
 100            : /* no output operands */
 101            : "r" (data)
 102            : "xmm8", "xmm9", "xmm10", "xmm11", "xmm12", "xmm13", "xmm14", "xmm15");
 103 #endif
 104
 105       asm ("nop"); /* first breakpoint here */
 106
 107       asm (
 108            "movaps %%xmm0, 0(%0)\n\t"
 109            "movaps %%xmm1, 16(%0)\n\t"
 110            "movaps %%xmm2, 32(%0)\n\t"
 111            "movaps %%xmm3, 48(%0)\n\t"
 112            "movaps %%xmm4, 64(%0)\n\t"
 113            "movaps %%xmm5, 80(%0)\n\t"
 114            "movaps %%xmm6, 96(%0)\n\t"
 115            "movaps %%xmm7, 112(%0)\n\t"
 116            : /* no output operands */
 117            : "r" (data)
 118            : "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7");
 119 #ifdef __x86_64__
 120       asm (
 121            "movaps %%xmm8, 128(%0)\n\t"
 122            "movaps %%xmm9, 144(%0)\n\t"
 123            "movaps %%xmm10, 160(%0)\n\t"
 124            "movaps %%xmm11, 176(%0)\n\t"
 125            "movaps %%xmm12, 192(%0)\n\t"
 126            "movaps %%xmm13, 208(%0)\n\t"
 127            "movaps %%xmm14, 224(%0)\n\t"
 128            "movaps %%xmm15, 240(%0)\n\t"
 129            : /* no output operands */
 130            : "r" (data)
 131            : "xmm8", "xmm9", "xmm10", "xmm11", "xmm12", "xmm13", "xmm14", "xmm15");
 132 #endif
 133
 134       puts ("Bye!"); /* second breakpoint here */
 135     }
 136
 137   free (allocated_ptr);
 138
 139   return 0;
 140 }