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