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5 # the Free Software Foundation; either version 3 of the License, or
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10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 # GNU General Public License for more details.
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17 # Tests for Powerpc floating point register setting and fetching
19 require {istarget "powerpc*"}
23 if ![test_compiler_info gcc*] {
24 # We use GCC's extended asm syntax
25 warning "unknown compiler"
29 if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {quiet debug}] != "" } {
30 verbose "Skipping FPSCR tests."
34 clean_restart $binfile
36 gdb_breakpoint [gdb_get_line_number "Invalid operation."]
37 gdb_breakpoint [gdb_get_line_number "Division by zero."]
41 # When the prompt comes back we'll be in the invalid operation breakpoint.
42 gdb_expect { -re ".*$gdb_prompt $" {} }
44 # First, verify if FPSCR exists and is all zeroes.
45 gdb_test_multiple "print \$fpscr" "FPSCR exists" {
46 -re " = 0\[\r\n\]+$gdb_prompt $" { pass "FPSCR is all zeroes" }
48 -re " = void\[\r\n\]+$gdb_prompt $" {
49 # There's no FPSCR. Skip this testcase.
50 verbose "Skipping powerpc floating point register tests."
55 # Step over invalid operation.
56 gdb_test "next" "" "next over invalid operation"
58 # Verify that the following bits are set (See Power ISA for details):
60 # 32 - Floating-Point Exception Summary (FX)
61 # 34 - Floating-Point Invalid Operation Summary (VX)
62 # 42 - Floating-Point Invalid Operation Exception (VXZDZ)
63 # 47 - Floating-Point Result Class Descriptor (C)
64 # 51 - Floating-Point Unordered or NaN (FU or ?)
65 gdb_test "print/t \$fpscr" " = 10100000001000010001000000000000" "FPSCR for invalid operation"
67 gdb_continue_to_breakpoint "go to division by zero"
69 # Step over division by zero.
70 gdb_test "next" "" "next over division by zero"
72 # Verify that the following bits are set (See Power ISA for details):
74 # 32 - Floating-Point Exception Summary (FX)
75 # 37 - Floating-Point Zero Divide Exception (ZX)
76 # 49 - Floating-Point Greater Than or Positive (FG or >)
77 # 51 - Floating-Point Unordered or NaN (FU or ?)
78 gdb_test "print/t \$fpscr" " = 10000100000000000101000000000000" "FPSCR for division by zero"