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4a94e368 | 1 | # Copyright (C) 2008-2022 Free Software Foundation, Inc. |
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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 | # | |
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16 | |
17 | # Tests for Powerpc floating point register setting and fetching | |
18 | ||
75b6f386 | 19 | if {![istarget "powerpc*"]} { |
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20 | verbose "Skipping powerpc floating point register tests." |
21 | return | |
22 | } | |
23 | ||
20c2c024 | 24 | standard_testfile |
3099e1c4 | 25 | |
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26 | if ![test_compiler_info gcc*] { |
27 | # We use GCC's extended asm syntax | |
28 | warning "unknown compiler" | |
29 | return -1 | |
30 | } | |
31 | ||
32 | if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {quiet debug}] != "" } { | |
33 | verbose "Skipping FPSCR tests." | |
34 | return -1 | |
35 | } | |
36 | ||
37 | # Start with a fresh gdb. | |
38 | ||
39 | gdb_exit | |
40 | gdb_start | |
41 | gdb_reinitialize_dir $srcdir/$subdir | |
42 | gdb_load ${binfile} | |
43 | ||
44 | gdb_breakpoint [gdb_get_line_number "Invalid operation."] | |
45 | gdb_breakpoint [gdb_get_line_number "Division by zero."] | |
46 | ||
47 | gdb_run_cmd | |
48 | ||
49 | # When the prompt comes back we'll be in the invalid operation breakpoint. | |
50 | gdb_expect { -re ".*$gdb_prompt $" {} } | |
51 | ||
52 | # First, verify if FPSCR exists and is all zeroes. | |
53 | gdb_test_multiple "print \$fpscr" "FPSCR exists" { | |
54 | -re " = 0\[\r\n\]+$gdb_prompt $" { pass "FPSCR is all zeroes" } | |
55 | ||
56 | -re " = void\[\r\n\]+$gdb_prompt $" { | |
57 | # There's no FPSCR. Skip this testcase. | |
58 | verbose "Skipping powerpc floating point register tests." | |
59 | return | |
60 | } | |
61 | } | |
62 | ||
63 | # Step over invalid operation. | |
7a4ce4a1 | 64 | gdb_test "next" "" "next over invalid operation" |
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65 | |
66 | # Verify that the following bits are set (See Power ISA for details): | |
67 | # | |
68 | # 32 - Floating-Point Exception Summary (FX) | |
69 | # 34 - Floating-Point Invalid Operation Summary (VX) | |
70 | # 42 - Floating-Point Invalid Operation Exception (VXZDZ) | |
71 | # 47 - Floating-Point Result Class Descriptor (C) | |
72 | # 51 - Floating-Point Unordered or NaN (FU or ?) | |
73 | gdb_test "print/t \$fpscr" " = 10100000001000010001000000000000" "FPSCR for invalid operation" | |
74 | ||
75 | gdb_continue_to_breakpoint "go to division by zero" | |
76 | ||
77 | # Step over division by zero. | |
7a4ce4a1 | 78 | gdb_test "next" "" "next over division by zero" |
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79 | |
80 | # Verify that the following bits are set (See Power ISA for details): | |
81 | # | |
82 | # 32 - Floating-Point Exception Summary (FX) | |
83 | # 37 - Floating-Point Zero Divide Exception (ZX) | |
84 | # 49 - Floating-Point Greater Than or Positive (FG or >) | |
85 | # 51 - Floating-Point Unordered or NaN (FU or ?) | |
86 | gdb_test "print/t \$fpscr" " = 10000100000000000101000000000000" "FPSCR for division by zero" |