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3666a048 | 1 | # Copyright (C) 2008-2021 Free Software Foundation, Inc. |
69abc51c TJB |
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 this program. If not, see <http://www.gnu.org/licenses/>. | |
15 | # | |
16 | ||
17 | # Tests for Powerpc Decimal Floating Point registers setting and fetching | |
18 | ||
69abc51c TJB |
19 | if ![istarget "powerpc*"] then { |
20 | verbose "Skipping powerpc decimal floating point register tests." | |
21 | return | |
22 | } | |
23 | ||
20c2c024 | 24 | standard_testfile |
69abc51c | 25 | |
4c93b1db | 26 | if [get_compiler_info] { |
69abc51c TJB |
27 | warning "get_compiler failed" |
28 | return -1 | |
29 | } | |
30 | ||
31 | if ![test_compiler_info gcc*] { | |
32 | # We use GCC's extended asm syntax | |
33 | warning "unknown compiler" | |
34 | return -1 | |
35 | } | |
36 | ||
37 | if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {quiet debug}] != "" } { | |
bc6c7af4 | 38 | unsupported "this machine doesn't support Decimal Floating Point." |
69abc51c TJB |
39 | return -1 |
40 | } | |
41 | ||
42 | # Start with a fresh gdb. | |
43 | ||
44 | gdb_exit | |
45 | gdb_start | |
46 | gdb_reinitialize_dir $srcdir/$subdir | |
47 | gdb_load ${binfile} | |
48 | ||
49 | gdb_breakpoint [gdb_get_line_number "Set DFP rounding mode."] | |
50 | ||
51 | gdb_run_cmd | |
52 | ||
53 | # When the prompt comes back we'll be at the Set DFP rounding mode breakpoint. | |
54 | # Unless the program bails out after checking AT_HWCAP. | |
55 | gdb_expect { | |
fda326dd | 56 | -re "$inferior_exited_re with code 01.\[\r\n\]+$gdb_prompt $" { |
bc6c7af4 | 57 | unsupported "this machine doesn't support Decimal Floating Point." |
69abc51c TJB |
58 | return -1 |
59 | } | |
60 | ||
61 | -re ".*$gdb_prompt $" {} | |
62 | } | |
63 | ||
64 | # First, verify if FPSCR is all zeroes. | |
65 | gdb_test "print \$fpscr" " = 0" "FPSCR is all zeroes" | |
66 | ||
67 | # Step over "set rounding mode" instruction. | |
68 | gdb_test "next" "" "" | |
69 | ||
70 | # Verify that the following bits are set (See Power ISA for details): | |
71 | # | |
72 | # 29:31 - DFP Rounding Control | |
73 | gdb_test "print/t \$fpscr" " = 10100000000000000000000000000000000" "FPSCR for round to nearest, ties toward zero rounding mode" |