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

   1 # Copyright (C) 2008-2022 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
  22 if {![istarget "powerpc*"] || [skip_vsx_tests]} {
  23     verbose "Skipping vsr float128 field tests."
  24     return
  25 }
  26
  27 standard_testfile
  28
  29 set compile_flags {debug nowarnings quiet}
  30 if [test_compiler_info gcc*] {
  31     set compile_flags "$compile_flags additional_flags=-maltivec additional_flags=-mabi=altivec"
  32 } elseif [test_compiler_info xlc*] {
  33     set compile_flags "$compile_flags additional_flags=-qaltivec"
  34 } else {
  35     warning "unknown compiler"
  36     return -1
  37 }
  38
  39 if  { [gdb_compile ${srcdir}/${subdir}/${srcfile} ${binfile} executable $compile_flags] != "" } {
  40      untested "failed to compile"
  41      return -1
  42 }
  43
  44 gdb_start
  45 gdb_reinitialize_dir $srcdir/$subdir
  46 gdb_load ${binfile}
  47
  48 # Run to `main' where we begin our tests.
  49
  50 if {![runto_main]} {
  51     return 0
  52 }
  53
  54 set endianness [get_endianness]
  55
  56 # Data sets used throughout the test
  57
  58 set vector_field ".*float128 = -2.25,.*"
  59
  60 # The vsx registers now contain a 128-bit floating point field.  The following tests
  61 # setting a vsr register with a 128-bit floating point value and then printing the
  62 # register contents using the float format to verify the value is correctly printed
  63 # as a 128-bit value.
  64
  65 # the following corresponds to a 128-bit float value of -2.25
  66 if {$endianness == "big"} {
  67     gdb_test_no_output "set \$vs1.v4_int32\[3\] = 0x0"
  68     gdb_test_no_output "set \$vs1.v4_int32\[2\] = 0x0"
  69     gdb_test_no_output "set \$vs1.v4_int32\[1\] = 0x0"
  70     gdb_test_no_output "set \$vs1.v4_int32\[0\] = 0xc0002000"
  71 } else {
  72     gdb_test_no_output "set \$vs1.v4_int32\[0\] = 0x0"
  73     gdb_test_no_output "set \$vs1.v4_int32\[1\] = 0x0"
  74     gdb_test_no_output "set \$vs1.v4_int32\[2\] = 0x0"
  75     gdb_test_no_output "set \$vs1.v4_int32\[3\] = 0xc0002000"
  76 }
  77
  78 # check the contents of the register
  79 gdb_test "p/f \$vs1" "$vector_field"
  80
  81 gdb_exit
  82
  83
  84