# Copyright (C) 2008 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/>.
#
# Please email any bugs, comments, and/or additions to this file to:
# bug-gdb@prep.ai.mit.edu
#

# Tests for Powerpc AltiVec register setting and fetching

if $tracelevel then {
    strace $tracelevel
}

#
# Test the use of VSX registers, for Powerpc.
#

set prms_id 0
set bug_id 0

if {![istarget "powerpc*"] || [skip_vsx_tests]} then {
    verbose "Skipping vsx register tests."
    return
}

set testfile "vsx-regs"
set binfile ${objdir}/${subdir}/${testfile}
set srcfile ${testfile}.c

set compile_flags {debug nowarnings quiet}
if [get_compiler_info $binfile] {
    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 vsx-regs.exp
     return -1
}

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

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

if ![runto_main] then {
    gdb_suppress_tests
}

# Data sets used throughout the test

set vector_register1 ".uint128 = 0x3ff4cccccccccccc0000000000000000, v4_float = .0x1, 0xf99999a0, 0x0, 0x0., v4_int32 = .0x3ff4cccc, 0xcccccccc, 0x0, 0x0., v8_int16 = .0x3ff4, 0xcccc, 0xcccc, 0xcccc, 0x0, 0x0, 0x0, 0x0., v16_int8 = .0x3f, 0xf4, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0.."

set vector_register2 "uint128 = 0xdeadbeefdeadbeefdeadbeefdeadbeef, v4_float = .0x0, 0x0, 0x0, 0x0., v4_int32 = .0xdeadbeef, 0xdeadbeef, 0xdeadbeef, 0xdeadbeef., v8_int16 = .0xdead, 0xbeef, 0xdead, 0xbeef, 0xdead, 0xbeef, 0xdead, 0xbeef., v16_int8 = .0xde, 0xad, 0xbe, 0xef, 0xde, 0xad, 0xbe, 0xef, 0xde, 0xad, 0xbe, 0xef, 0xde, 0xad, 0xbe, 0xef.."

set vector_register3 ".uint128 = 0x00000001000000010000000100000001, v4_float = .0x0, 0x0, 0x0, 0x0., v4_int32 = .0x1, 0x1, 0x1, 0x1., v8_int16 = .0x0, 0x1, 0x0, 0x1, 0x0, 0x1, 0x0, 0x1., v16_int8 = .0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1.."

set float_register ".raw 0xdeadbeefdeadbeef."

# First run the F0~F31/VS0~VS31 tests

# 1: Set F0~F31 registers and check if it reflects on VS0~VS31.
for {set i 0} {$i < 32} {incr i 1} {
    send_gdb "set \$f$i = 1\.3"
}

for {set i 0} {$i < 32} {incr i 1} {
    gdb_test "info reg vs$i" "vs$i.*$vector_register1" "info reg vs$i (doubleword 0)"
}

# 2: Set VS0~VS31 registers and check if it reflects on F0~F31.
for {set i 0} {$i < 32} {incr i 1} {
        for {set j 0} {$j < 4} {incr j 1} {
           send_gdb "set \$vs$i.v4_int32\[$j\] = 0xdeadbeef"
        }
}

for {set i 0} {$i < 32} {incr i 1} {
    gdb_test "info reg f$i" "f$i.*$float_register" "info reg f$i"
}

for {set i 0} {$i < 32} {incr i 1} {
    gdb_test "info reg vs$i" "vs$i.*$vector_register2" "info reg vs$i (doubleword 1)"
}

# Now run the VR0~VR31/VS32~VS63 tests

# 1: Set VR0~VR31 registers and check if it reflects on VS32~VS63.
for {set i 0} {$i < 32} {incr i 1} {
        for {set j 0} {$j < 4} {incr j 1} {
           send_gdb "set \$vr$i.v4_int32\[$j\] = 1"
        }
}

for {set i 32} {$i < 64} {incr i 1} {
    gdb_test "info reg vs$i" "vs$i.*$vector_register3" "info reg vs$i"
}
# 2: Set VS32~VS63 registers and check if it reflects on VR0~VR31.
for {set i 32} {$i < 64} {incr i 1} {
        for {set j 0} {$j < 4} {incr j 1} {
           send_gdb "set \$vs$i.v4_int32\[$j\] = 1"
        }
}

for {set i 0} {$i < 32} {incr i 1} {
    gdb_test "info reg vr$i" "vr$i.*$vector_register3" "info reg vr$i"
}

set escapedfilename [string_to_regexp ${objdir}/${subdir}/vsx-core.test]

set core_supported 0

gdb_test_multiple "gcore ${objdir}/${subdir}/vsx-core.test" \
        "Save a VSX-enabled corefile" \
{
  -re "Saved corefile ${escapedfilename}\[\r\n\]+$gdb_prompt $" {
    pass "Save a VSX-enabled corefile"
    global core_supported
    set core_supported 1
  }
  -re "Can't create a corefile\[\r\n\]+$gdb_prompt $" {
    unsupported "Save a VSX-enabled corefile"
    global core_supported
    set core_supported 0
  }
}

if {!$core_supported} {
  return -1
}

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

gdb_test_multiple "core ${objdir}/${subdir}/vsx-core.test" \
	"re-load generated corefile" \
{
    -re ".* is not a core dump:.*$gdb_prompt $" {
	fail "re-load generated corefile (bad file format)"
	# No use proceeding from here.
	return;
    }
    -re ".*: No such file or directory.*$gdb_prompt $" {
	fail "re-load generated corefile (file not found)"
	# No use proceeding from here.
	return;
    }
    -re ".*Couldn't find .* registers in core file.*$gdb_prompt $" {
	fail "re-load generated corefile (incomplete note section)"
    }
    -re "Core was generated by .*$gdb_prompt $" {
	pass "re-load generated corefile"
    }
    -re ".*$gdb_prompt $" {
	fail "re-load generated corefile"
    }
    timeout {
	fail "re-load generated corefile (timeout)"
    }
}

for {set i 0} {$i < 32} {incr i 1} {
    gdb_test "info reg vs$i" "vs$i.*$vector_register2" "Restore vs$i from core file"
}

for {set i 32} {$i < 64} {incr i 1} {
    gdb_test "info reg vs$i" "vs$i.*$vector_register3" "Restore vs$i from core file"
}