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

# Copyright (C) 2008-2021 Free Software Foundation, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#

#
# Test the vsr registers print values in float128 bit format.
#


if {![istarget "powerpc*"] || [skip_vsx_tests]} then {
    verbose "Skipping vsr float128 field tests."
    return
}

standard_testfile

set compile_flags {debug nowarnings quiet}
if [get_compiler_info] {
    warning "get_compiler failed"
    return -1
}

if [test_compiler_info gcc*] {
    set compile_flags "$compile_flags additional_flags=-maltivec additional_flags=-mabi=altivec"
} elseif [test_compiler_info xlc*] {
    set compile_flags "$compile_flags additional_flags=-qaltivec"
} else {
    warning "unknown compiler"
    return -1
}

if  { [gdb_compile ${srcdir}/${subdir}/${srcfile} ${binfile} executable $compile_flags] != "" } {
     untested "failed to compile"
     return -1
}

gdb_start
gdb_reinitialize_dir $srcdir/$subdir
gdb_load ${binfile}

# Run to `main' where we begin our tests.

if ![runto_main] then {
    return 0
}

set endianness [get_endianness]

# Data sets used throughout the test

set vector_field ".*float128 = -2.25,.*"

# The vsx registers now contain a 128-bit floating point field.  The following tests
# setting a vsr register with a 128-bit floating point value and then printing the
# register contents using the float format to verify the value is correctly printed
# as a 128-bit value.

# the following corresponds to a 128-bit float value of -2.25
if {$endianness == "big"} {
    gdb_test_no_output "set \$vs1.v4_int32\[3\] = 0x0"
    gdb_test_no_output "set \$vs1.v4_int32\[2\] = 0x0"
    gdb_test_no_output "set \$vs1.v4_int32\[1\] = 0x0"
    gdb_test_no_output "set \$vs1.v4_int32\[0\] = 0xc0002000"
} else {
    gdb_test_no_output "set \$vs1.v4_int32\[0\] = 0x0"
    gdb_test_no_output "set \$vs1.v4_int32\[1\] = 0x0"
    gdb_test_no_output "set \$vs1.v4_int32\[2\] = 0x0"
    gdb_test_no_output "set \$vs1.v4_int32\[3\] = 0xc0002000"
}

# check the contents of the register
gdb_test "p/f \$vs1" "$vector_field"

gdb_exit