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#   Copyright (C) 2002, 2004, 2007, 2008 Free Software Foundation, Inc.

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 3 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with GCC; see the file COPYING3.  If not see

# .

# Test that the correct data prefetch instructions (SSE or 3DNow! variant,

# or none) are used for various i386 cpu-type and instruction set

# extension options for __builtin_prefetch.  When using -mtune, specify

# the minimum supported architecture in case the compiler was configured

# with a different default.

# Failure reports do not include the compile option that was used; that

# information can be seen in the compile line in the log file.

# Do not generate prefetch instructions for the following options.

set PREFETCH_NONE [list \

        { -march=i386 -mtune=i386 } \

        { -march=i386 -mtune=i486 } \

        { -march=i386 -mtune=i586 } \

        { -march=i386 -mtune=i686 } \

        { -march=i386 -mtune=pentium2 } \

        { -march=i386 -mtune=k6 } \

        { -march=i386 -mtune=k6-2 } \

        { -march=i386 -mtune=k6-3 } \

        { -march=i386 } \

        { -march=i486 } \

        { -march=i586 } \

        { -march=i686 } \

        { -march=pentium2 } \

        { -march=k6 } ]

# For options in PREFETCH_SSE, generate SSE prefetch instructions for

# __builtin_prefetch.  This includes -mtune for targets that treat prefetch

# instructions as nops.

set PREFETCH_SSE [list \

        { -march=i686 -mtune=pentium3 } \

        { -march=i686 -mtune=pentium3m } \

        { -march=i686 -mtune=pentium-m } \

        { -march=i686 -mtune=pentium4 } \

        { -march=i686 -mtune=pentium4m } \

        { -march=i686 -mtune=prescott } \

        { -march=i686 -mtune=athlon } \

        { -march=i686 -mtune=athlon-4 } \

        { -march=i686 -mtune=c3-2 } \

        { -march=pentium3 } \

        { -march=pentium3m } \

        { -march=pentium-m } \

        { -march=pentium4 } \

        { -march=pentium4m } \

        { -march=prescott } \

        { -march=c3-2 } ]

# Generate 3DNow! prefetch instructions for the following.

set PREFETCH_3DNOW [list \

        { -march=c3 } \

        { -march=k6-2 } \

        { -march=k6-3 } ]

# Athlon supports both 3DNow! and SSE prefetch instructions.  For

# __builtin_prefetch, generate the 3DNow! instruction for write

# prefetches but SSE prefetch instructions for read prefetches.

set PREFETCH_ATHLON [list \

        { -march=athlon } \

        { -march=athlon-4 } ]

if $tracelevel then {

    strace $tracelevel

}

# Load support procs.

load_lib gcc-dg.exp

load_lib torture-options.exp

# Initialize harness.

dg-init

torture-init

if { [board_info target exists multilib_flags]

     && [string match "* -march=*" " [board_info target multilib_flags] "] } {

    # Multilib flags come after the -march flags we pass and override

    # them, so skip these tests when such flags are passed.

    return

}

set-torture-options $PREFETCH_NONE

gcc-dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/i386-pf-none-*.c]] ""

set-torture-options $PREFETCH_SSE

gcc-dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/i386-pf-sse-*.c]] ""

set-torture-options $PREFETCH_3DNOW

gcc-dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/i386-pf-3dnow-*.c]] ""

set-torture-options $PREFETCH_ATHLON

gcc-dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/i386-pf-athlon-*.c]] ""

torture-finish

dg-finish