1#   Copyright (C) 2002 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.
20
21# Failure reports do not include the compile option that was used; that
22# information can be seen in the compile line in the log file.
23
24# Do not generate prefetch instructions for the following options.
25
26set PREFETCH_NONE [list \
27	{ -mcpu=i386 } \
28	{ -mcpu=i486 } \
29	{ -mcpu=i586 } \
30	{ -mcpu=i686 } \
31	{ -mcpu=pentium2 } \
32	{ -mcpu=k6 } \
33	{ -mcpu=k6-2 } \
34	{ -mcpu=k6-3 } \
35	{ -march=i386 } \
36	{ -march=i486 } \
37	{ -march=i586 } \
38	{ -march=i686 } \
39	{ -march=pentium2 } \
40	{ -march=k6 } ]
41
42# For options in PREFETCH_SSE, generate SSE prefetch instructions for
43# __builtin_prefetch.  This includes -mcpu for targets that treat prefetch
44# instructions as nops.
45
46set PREFETCH_SSE [list \
47	{ -mcpu=pentium3 } \
48	{ -mcpu=pentium4 } \
49	{ -mcpu=athlon } \
50	{ -mcpu=athlon-4 } \
51	{ -march=pentium3 } \
52	{ -march=pentium4 } ]
53
54# Generate 3DNow! prefetch instructions for the following.
55
56set PREFETCH_3DNOW [list \
57	{ -march=k6-2 } \
58	{ -march=k6-3 } ]
59
60# Athlon supports both 3DNow! and SSE prefetch instructions.  For
61# __builtin_prefetch, generate the 3DNow! instruction for write
62# prefetches but SSE prefetch instructions for read prefetches.
63
64set PREFETCH_ATHLON [list \
65	{ -march=athlon } \
66	{ -march=athlon-4 } ]
67
68if $tracelevel then {
69    strace $tracelevel
70}
71
72# Load support procs.
73load_lib gcc-dg.exp
74
75# Initialize harness.
76dg-init
77
78# Save these.  They are needed if testsuite loops over multiple ABIs
79set saved_torture_with_loops $torture_with_loops
80set saved_torture_without_loops $torture_without_loops
81
82set torture_with_loops $PREFETCH_NONE
83set torture_without_loops $PREFETCH_NONE
84gcc-dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/i386-pf-none-*.c]] ""
85
86set torture_with_loops $PREFETCH_SSE
87set torture_without_loops $PREFETCH_SSE
88gcc-dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/i386-pf-sse-*.c]] ""
89
90set torture_with_loops $PREFETCH_3DNOW
91set torture_without_loops $PREFETCH_3DNOW
92gcc-dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/i386-pf-3dnow-*.c]] ""
93
94set torture_with_loops $PREFETCH_ATHLON
95set torture_without_loops $PREFETCH_ATHLON
96gcc-dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/i386-pf-athlon-*.c]] ""
97
98set torture_with_loops $saved_torture_with_loops
99set torture_without_loops $saved_torture_without_loops
100
101dg-finish
102
103