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      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 
     81