1# Copyright (C) 2002, 2003 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# Please email any bugs, comments, and/or additions to this file to:
18# bug-gdb@prep.ai.mit.edu
19#
20
21# Tests for Powerpc AltiVec register setting and fetching
22
23if $tracelevel then {
24    strace $tracelevel
25}
26
27#
28# Test the use of registers, especially AltiVec registers, for Powerpc.
29# This file uses altivec-regs.c for input.
30#
31
32set prms_id 0
33set bug_id 0
34
35if ![istarget "powerpc-*altivec"] then {
36    verbose "Skipping altivec register tests."
37    return
38}
39
40set testfile "altivec-regs"
41set binfile ${objdir}/${subdir}/${testfile}
42set srcfile ${testfile}.c
43
44if  { [gdb_compile ${srcdir}/${subdir}/${srcfile} ${binfile} executable {debug additional_flags=-w}] != "" } {
45     gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
46}
47
48gdb_start
49gdb_reinitialize_dir $srcdir/$subdir
50gdb_load ${binfile}
51
52#
53# Run to `main' where we begin our tests.
54#
55
56if ![runto_main] then {
57    gdb_suppress_tests
58}
59
60# set all the registers integer portions to 1
61for {set i 0} {$i < 32} {incr i 1} {
62        for {set j 0} {$j < 4} {incr j 1} {
63           gdb_test "set \$vr$i.v4_int32\[$j\] = 1" "" "set reg vr$i.v4si.f\[$j\]"
64        }
65}
66
67gdb_test "set \$vscr = 1" "" ""
68gdb_test "set \$vrsave = 1" "" ""
69
70# Now execute some target code, so that GDB's register cache is flushed.
71
72gdb_test "next" "" ""
73
74send_gdb "show endian\n"
75gdb_expect {
76    -re "(The target endianness is set automatically .currently )(big|little)( endian.*)$gdb_prompt $" {
77        pass "endianness"
78	set endianness $expect_out(2,string)
79    }
80    -re ".*$gdb_prompt $" {
81	fail "couldn't get endianness"
82    }
83    timeout		{ fail "(timeout) endianness" }
84}
85
86# And then read the AltiVec registers back, to see that
87# a) the register write above worked, and
88# b) the register read (below) also works.
89
90if {$endianness == "big"} {
91set vector_register ".uint128 = 0x00000001000000010000000100000001, v4_float = .0x0, 0x0, 0x0, 0x0., v4_int32 = .0x1, 0x1, 0x1, 0x1., v8_int16 = .0x0, 0x1, 0x0, 0x1, 0x0, 0x1, 0x0, 0x1., v16_int8 = .0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1.."
92} else {
93set vector_register ".uint128 = 0x00000001000000010000000100000001, v4_float = .0x0, 0x0, 0x0, 0x0., v4_int32 = .0x1, 0x1, 0x1, 0x1., v8_int16 = .0x1, 0x0, 0x1, 0x0, 0x1, 0x0, 0x1, 0x0., v16_int8 = .0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0.."
94}
95
96for {set i 0} {$i < 32} {incr i 1} {
97        gdb_test "info reg vr$i" "vr$i.*$vector_register" "info reg vr$i"
98}
99
100gdb_test "info reg vrsave" "vrsave.*0x1" "info reg vrsave"
101gdb_test "info reg vscr" "vscr.*0x1" "info reg vscr"
102
103# Now redo the same tests, but using the print command.
104# Note: in LE case, the char array is printed WITHOUT the last character.
105# Gdb treats the terminating null char in the array like the terminating
106# null char in a string and doesn't print it. This is not a failure, but
107# the way gdb works.
108
109if {$endianness == "big"} {
110     set decimal_vector ".uint128 = 0x00000001000000010000000100000001, v4_float = .1.*e-45, 1.*e-45, 1.*e-45, 1.*e-45., v4_int32 = .1, 1, 1, 1., v8_int16 = .0, 1, 0, 1, 0, 1, 0, 1., v16_int8 = ..0.0.0.001.0.0.0.001.0.0.0.001.0.0.0.001.."
111} else {
112     set decimal_vector ".uint128 = 0x00000001000000010000000100000001, v4_float = .1.*e-45, 1.*e-45, 1.*e-45, 1.*e-45., v4_int32 = .1, 1, 1, 1., v8_int16 = .1, 0, 1, 0, 1, 0, 1, 0., v16_int8 = ..001.0.0.0.001.0.0.0.001.0.0.0.001.0.0.."
113}
114
115for {set i 0} {$i < 32} {incr i 1} {
116        gdb_test "print \$vr$i" ".* = $decimal_vector" "print vr$i"
117}
118
119gdb_test "print \$vrsave" ".* = 1" "print vrsave"
120gdb_test "print \$vscr" ".* = 1" "print vscr"
121
122for {set i 0} {$i < 32} {incr i 1} {
123         set pattern$i ".*vr$i.*"
124         append pattern$i $vector_register
125}
126
127send_gdb "info powerpc altivec\n"
128gdb_expect_list "info powerpc altivec" ".*$gdb_prompt $" {
129[$pattern0]
130[$pattern1]
131[$pattern2]
132[$pattern3]
133[$pattern4]
134[$pattern5]
135[$pattern6]
136[$pattern7]
137[$pattern8]
138[$pattern9]
139[$pattern10]
140[$pattern11]
141[$pattern12]
142[$pattern13]
143[$pattern14]
144[$pattern15]
145[$pattern16]
146[$pattern17]
147[$pattern18]
148[$pattern19]
149[$pattern20]
150[$pattern21]
151[$pattern22]
152[$pattern23]
153[$pattern24]
154[$pattern25]
155[$pattern26]
156[$pattern27]
157[$pattern28]
158[$pattern29]
159[$pattern30]
160[$pattern31]
161"\[ \t\n\r\]+vscr\[ \t\]+0x1"
162"\[ \t\n\r\]+vrsave\[ \t\]+0x1"
163}
164
165gdb_test "break vector_fun" \
166 "Breakpoint 2 at.*altivec-regs.c, line \[0-9\]+\\." \
167 "Set breakpoint at vector_fun"
168
169# Actually it is nuch easier to see these results printed in hex.
170gdb_test "set output-radix 16" \
171  "Output radix now set to decimal 16, hex 10, octal 20." \
172  "Set output radix to hex"
173
174gdb_test "continue" \
175  "Breakpoint 2, vector_fun .a=.0xfefefefe, 0xfefefefe, 0xfefefefe, 0xfefefefe., b=.0x1010101, 0x1010101, 0x1010101, 0x1010101.*altivec-regs.c.*vec_splat_u8.2..;" \
176  "continue to vector_fun"
177
178# Do a next over the assignment to vector 'a'.
179gdb_test "next" ".*b = \\(\\(vector unsigned int\\) vec_splat_u8\\(3\\)\\);" \
180  "next (1)"
181
182# Do a next over the assignment to vector 'b'.
183gdb_test "next" "c = vec_add \\(a, b\\);" \
184  "next (2)"
185
186# Now 'a' should be '0x02020202...' and 'b' should be '0x03030303...'
187gdb_test "print/x a" \
188  ".*= .0x2020202, 0x2020202, 0x2020202, 0x2020202." \
189  "print vector parameter a"
190
191gdb_test "print/x b" \
192  ".*= .0x3030303, 0x3030303, 0x3030303, 0x3030303." \
193  "print vector parameter b"
194
195# If we do an 'up' now, and print 'x' and 'y' we should see the values they
196# have in main, not the values they have in vector_fun.
197gdb_test "up" ".1.*main \\(\\) at.*altivec-regs.c.*z = vector_fun \\(x, y\\);" \
198  "up to main"
199
200gdb_test "print/x x" \
201  ".*= .0xfefefefe, 0xfefefefe, 0xfefefefe, 0xfefefefe." \
202  "print vector x"
203
204gdb_test "print/x y" \
205  ".*= .0x1010101, 0x1010101, 0x1010101, 0x1010101." \
206  "print vector y"
207
208# now go back to vector_func and do a finish, to see if we can print the return
209# value correctly.
210
211gdb_test "down" \
212  ".0  vector_fun \\(a=.0x2020202, 0x2020202, 0x2020202, 0x2020202., b=.0x3030303, 0x3030303, 0x3030303, 0x3030303.\\) at.*altivec-regs.c.*c = vec_add \\(a, b\\);" \
213  "down to vector_fun"
214
215gdb_test "finish" \
216  "Run till exit from .0  vector_fun \\(a=.0x2020202, 0x2020202, 0x2020202, 0x2020202., b=.0x3030303, 0x3030303, 0x3030303, 0x3030303.\\) at.*altivec-regs.c.*in main \\(\\) at.*altivec-regs.c.*z = vector_fun \\(x, y\\);.*Value returned is.*= .0x5050505, 0x5050505, 0x5050505, 0x5050505." \
217  "finish returned correct value"
218
219
220
221