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618f726f | 1 | # Copyright (C) 2008-2016 Free Software Foundation, Inc. |
3099e1c4 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 | # | |
3099e1c4 TJB |
16 | |
17 | # Tests for Powerpc floating point register setting and fetching | |
18 | ||
3099e1c4 TJB |
19 | if ![istarget "powerpc*"] then { |
20 | verbose "Skipping powerpc floating point register tests." | |
21 | return | |
22 | } | |
23 | ||
24 | set testfile "ppc-fp" | |
25 | set binfile ${objdir}/${subdir}/${testfile} | |
26 | set srcfile ${testfile}.c | |
27 | ||
4c93b1db | 28 | if [get_compiler_info] { |
3099e1c4 TJB |
29 | warning "get_compiler failed" |
30 | return -1 | |
31 | } | |
32 | ||
33 | if ![test_compiler_info gcc*] { | |
34 | # We use GCC's extended asm syntax | |
35 | warning "unknown compiler" | |
36 | return -1 | |
37 | } | |
38 | ||
39 | if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {quiet debug}] != "" } { | |
40 | verbose "Skipping FPSCR tests." | |
41 | return -1 | |
42 | } | |
43 | ||
44 | # Start with a fresh gdb. | |
45 | ||
46 | gdb_exit | |
47 | gdb_start | |
48 | gdb_reinitialize_dir $srcdir/$subdir | |
49 | gdb_load ${binfile} | |
50 | ||
51 | gdb_breakpoint [gdb_get_line_number "Invalid operation."] | |
52 | gdb_breakpoint [gdb_get_line_number "Division by zero."] | |
53 | ||
54 | gdb_run_cmd | |
55 | ||
56 | # When the prompt comes back we'll be in the invalid operation breakpoint. | |
57 | gdb_expect { -re ".*$gdb_prompt $" {} } | |
58 | ||
59 | # First, verify if FPSCR exists and is all zeroes. | |
60 | gdb_test_multiple "print \$fpscr" "FPSCR exists" { | |
61 | -re " = 0\[\r\n\]+$gdb_prompt $" { pass "FPSCR is all zeroes" } | |
62 | ||
63 | -re " = void\[\r\n\]+$gdb_prompt $" { | |
64 | # There's no FPSCR. Skip this testcase. | |
65 | verbose "Skipping powerpc floating point register tests." | |
66 | return | |
67 | } | |
68 | } | |
69 | ||
70 | # Step over invalid operation. | |
71 | gdb_test "next" "" "" | |
72 | ||
73 | # Verify that the following bits are set (See Power ISA for details): | |
74 | # | |
75 | # 32 - Floating-Point Exception Summary (FX) | |
76 | # 34 - Floating-Point Invalid Operation Summary (VX) | |
77 | # 42 - Floating-Point Invalid Operation Exception (VXZDZ) | |
78 | # 47 - Floating-Point Result Class Descriptor (C) | |
79 | # 51 - Floating-Point Unordered or NaN (FU or ?) | |
80 | gdb_test "print/t \$fpscr" " = 10100000001000010001000000000000" "FPSCR for invalid operation" | |
81 | ||
82 | gdb_continue_to_breakpoint "go to division by zero" | |
83 | ||
84 | # Step over division by zero. | |
85 | gdb_test "next" "" "" | |
86 | ||
87 | # Verify that the following bits are set (See Power ISA for details): | |
88 | # | |
89 | # 32 - Floating-Point Exception Summary (FX) | |
90 | # 37 - Floating-Point Zero Divide Exception (ZX) | |
91 | # 49 - Floating-Point Greater Than or Positive (FG or >) | |
92 | # 51 - Floating-Point Unordered or NaN (FU or ?) | |
93 | gdb_test "print/t \$fpscr" " = 10000100000000000101000000000000" "FPSCR for division by zero" |