gcc/testsuite/gcc.misc-tests/i386-prefetch.exp

   1 #   Copyright (C) 2002, 2004 Free Software Foundation, Inc.
   2
   3 # This program is free software; you can redistribute it and/or modify
   4 # it under the terms of the GNU General Public License as published by
   5 # the Free Software Foundation; either version 2 of the License, or
   6 # (at your option) any later version.
   7 #
   8 # This program is distributed in the hope that it will be useful,
   9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 # GNU General Public License for more details.
  12 #
  13 # You should have received a copy of the GNU General Public License
  14 # along with this program; if not, write to the Free Software
  15 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  16
  17 # Test that the correct data prefetch instructions (SSE or 3DNow! variant,
  18 # or none) are used for various i386 cpu-type and instruction set
  19 # extension options for __builtin_prefetch.  When using -mtune, specify
  20 # the minimum supported architecture in case the compiler was configured
  21 # with a different default.
  22
  23 # Failure reports do not include the compile option that was used; that
  24 # information can be seen in the compile line in the log file.
  25
  26 # Do not generate prefetch instructions for the following options.
  27
  28 set PREFETCH_NONE [list \
  29         { -march=i386 -mtune=i386 } \
  30         { -march=i386 -mtune=i486 } \
  31         { -march=i386 -mtune=i586 } \
  32         { -march=i386 -mtune=i686 } \
  33         { -march=i386 -mtune=pentium2 } \
  34         { -march=i386 -mtune=k6 } \
  35         { -march=i386 -mtune=k6-2 } \
  36         { -march=i386 -mtune=k6-3 } \
  37         { -march=i386 } \
  38         { -march=i486 } \
  39         { -march=i586 } \
  40         { -march=i686 } \
  41         { -march=pentium2 } \
  42         { -march=k6 } ]
  43
  44 # For options in PREFETCH_SSE, generate SSE prefetch instructions for
  45 # __builtin_prefetch.  This includes -mtune for targets that treat prefetch
  46 # instructions as nops.
  47
  48 set PREFETCH_SSE [list \
  49         { -march=i686 -mtune=pentium3 } \
  50         { -march=i686 -mtune=pentium3m } \
  51         { -march=i686 -mtune=pentium-m } \
  52         { -march=i686 -mtune=pentium4 } \
  53         { -march=i686 -mtune=pentium4m } \
  54         { -march=i686 -mtune=prescott } \
  55         { -march=i686 -mtune=athlon } \
  56         { -march=i686 -mtune=athlon-4 } \
  57         { -march=i686 -mtune=c3-2 } \
  58         { -march=pentium3 } \
  59         { -march=pentium3m } \
  60         { -march=pentium-m } \
  61         { -march=pentium4 } \
  62         { -march=pentium4m } \
  63         { -march=prescott } \
  64         { -march=c3-2 } ]
  65
  66 # Generate 3DNow! prefetch instructions for the following.
  67
  68 set PREFETCH_3DNOW [list \
  69         { -march=c3 } \
  70         { -march=k6-2 } \
  71         { -march=k6-3 } ]
  72
  73 # Athlon supports both 3DNow! and SSE prefetch instructions.  For
  74 # __builtin_prefetch, generate the 3DNow! instruction for write
  75 # prefetches but SSE prefetch instructions for read prefetches.
  76
  77 set PREFETCH_ATHLON [list \
  78         { -march=athlon } \
  79         { -march=athlon-4 } ]
  80
  81 if $tracelevel then {
  82     strace $tracelevel
  83 }
  84
  85 # Load support procs.
  86 load_lib gcc-dg.exp
  87
  88 # Initialize harness.
  89 dg-init
  90
  91 # Save these.  They are needed if testsuite loops over multiple ABIs
  92 set saved_torture_with_loops $torture_with_loops
  93 set saved_torture_without_loops $torture_without_loops
  94
  95 set torture_with_loops $PREFETCH_NONE
  96 set torture_without_loops $PREFETCH_NONE
  97 gcc-dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/i386-pf-none-*.c]] ""
  98
  99 set torture_with_loops $PREFETCH_SSE
 100 set torture_without_loops $PREFETCH_SSE
 101 gcc-dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/i386-pf-sse-*.c]] ""
 102
 103 set torture_with_loops $PREFETCH_3DNOW
 104 set torture_without_loops $PREFETCH_3DNOW
 105 gcc-dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/i386-pf-3dnow-*.c]] ""
 106
 107 set torture_with_loops $PREFETCH_ATHLON
 108 set torture_without_loops $PREFETCH_ATHLON
 109 gcc-dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/i386-pf-athlon-*.c]] ""
 110
 111 set torture_with_loops $saved_torture_with_loops
 112 set torture_without_loops $saved_torture_without_loops
 113
 114 dg-finish
 115