1 # Copyright (C) 2008-2014 Free Software Foundation, Inc.
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.
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.
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14 # along with this program. If not, see <http://www.gnu.org/licenses/>.
17 # Tests for Powerpc floating point register setting and fetching
19 if ![istarget "powerpc*"] then {
20 verbose "Skipping powerpc floating point register tests."
25 set binfile ${objdir}/${subdir}/${testfile}
26 set srcfile ${testfile}.c
28 if [get_compiler_info] {
29 warning "get_compiler failed"
33 if ![test_compiler_info gcc*] {
34 # We use GCC's extended asm syntax
35 warning "unknown compiler"
39 if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {quiet debug}] != "" } {
40 verbose "Skipping FPSCR tests."
44 # Start with a fresh gdb.
48 gdb_reinitialize_dir $srcdir/$subdir
51 gdb_breakpoint [gdb_get_line_number "Invalid operation."]
52 gdb_breakpoint [gdb_get_line_number "Division by zero."]
56 # When the prompt comes back we'll be in the invalid operation breakpoint.
57 gdb_expect { -re ".*$gdb_prompt $" {} }
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" }
63 -re " = void\[\r\n\]+$gdb_prompt $" {
64 # There's no FPSCR. Skip this testcase.
65 verbose "Skipping powerpc floating point register tests."
70 # Step over invalid operation.
73 # Verify that the following bits are set (See Power ISA for details):
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"
82 gdb_continue_to_breakpoint "go to division by zero"
84 # Step over division by zero.
87 # Verify that the following bits are set (See Power ISA for details):
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"