1# Copyright (C) 2002-2018 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 3 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 GCC; see the file COPYING3. If not see 15# <http://www.gnu.org/licenses/>. 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 28set 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 48set 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 68set 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 77set PREFETCH_ATHLON [list \ 78 { -march=athlon } \ 79 { -march=athlon-4 } ] 80 81if $tracelevel then { 82 strace $tracelevel 83} 84 85# Load support procs. 86load_lib gcc-dg.exp 87load_lib torture-options.exp 88 89# Initialize harness. 90dg-init 91torture-init 92 93if { [board_info target exists multilib_flags] 94 && [string match "* -march=*" " [board_info target multilib_flags] "] } { 95 # Multilib flags come after the -march flags we pass and override 96 # them, so skip these tests when such flags are passed. 97 return 98} 99 100set-torture-options $PREFETCH_NONE 101gcc-dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/i386-pf-none-*.c]] "" "" 102 103set-torture-options $PREFETCH_SSE 104gcc-dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/i386-pf-sse-*.c]] "" "" 105 106set-torture-options $PREFETCH_3DNOW 107gcc-dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/i386-pf-3dnow-*.c]] "" "" 108 109set-torture-options $PREFETCH_ATHLON 110gcc-dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/i386-pf-athlon-*.c]] "" "" 111 112torture-finish 113dg-finish 114 115