gdb/testsuite/gdb.arch/vsx-vsr-float28.exp

   1 # Copyright (C) 2008-2024 Free Software Foundation, Inc.
   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 #
  18 # Test the vsr registers print values in float128 bit format.
  19 #
  20
  21 require {istarget "powerpc*"} allow_vsx_tests
  22
  23 standard_testfile
  24
  25 set compile_flags {debug nowarnings quiet}
  26 if [test_compiler_info gcc*] {
  27     set compile_flags "$compile_flags additional_flags=-maltivec additional_flags=-mabi=altivec"
  28 } elseif [test_compiler_info xlc*] {
  29     set compile_flags "$compile_flags additional_flags=-qaltivec"
  30 } else {
  31     warning "unknown compiler"
  32     return -1
  33 }
  34
  35 if  { [gdb_compile ${srcdir}/${subdir}/${srcfile} ${binfile} executable $compile_flags] != "" } {
  36      untested "failed to compile"
  37      return -1
  38 }
  39
  40 gdb_start
  41 gdb_reinitialize_dir $srcdir/$subdir
  42 gdb_load ${binfile}
  43
  44 # Run to `main' where we begin our tests.
  45
  46 if {![runto_main]} {
  47     return 0
  48 }
  49
  50 set endianness [get_endianness]
  51
  52 # Data sets used throughout the test
  53
  54 set vector_field ".*float128 = -2.25,.*"
  55
  56 # The vsx registers now contain a 128-bit floating point field.  The following tests
  57 # setting a vsr register with a 128-bit floating point value and then printing the
  58 # register contents using the float format to verify the value is correctly printed
  59 # as a 128-bit value.
  60
  61 # the following corresponds to a 128-bit float value of -2.25
  62 if {$endianness == "big"} {
  63     gdb_test_no_output "set \$vs1.v4_int32\[3\] = 0x0"
  64     gdb_test_no_output "set \$vs1.v4_int32\[2\] = 0x0"
  65     gdb_test_no_output "set \$vs1.v4_int32\[1\] = 0x0"
  66     gdb_test_no_output "set \$vs1.v4_int32\[0\] = 0xc0002000"
  67 } else {
  68     gdb_test_no_output "set \$vs1.v4_int32\[0\] = 0x0"
  69     gdb_test_no_output "set \$vs1.v4_int32\[1\] = 0x0"
  70     gdb_test_no_output "set \$vs1.v4_int32\[2\] = 0x0"
  71     gdb_test_no_output "set \$vs1.v4_int32\[3\] = 0xc0002000"
  72 }
  73
  74 # check the contents of the register
  75 gdb_test "p/f \$vs1" "$vector_field"
  76
  77 gdb_exit
  78
  79
  80