234 lines
7.3 KiB
Text
234 lines
7.3 KiB
Text
# Copyright (C) 2002, 2003, 2005, 2007, 2008, 2009, 2010, 2011
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# Free Software Foundation, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# Tests for Powerpc AltiVec register setting and fetching
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if $tracelevel then {
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strace $tracelevel
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}
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#
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# Test the use of registers, especially AltiVec registers, for Powerpc.
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# This file uses altivec-regs.c for input.
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#
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if {![istarget "powerpc*"] || [skip_altivec_tests]} then {
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verbose "Skipping altivec register tests."
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return
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}
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set testfile "altivec-regs"
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set binfile ${objdir}/${subdir}/${testfile}
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set srcfile ${testfile}.c
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set compile_flags {debug nowarnings}
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if [get_compiler_info $binfile] {
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warning "get_compiler failed"
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return -1
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}
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if [test_compiler_info gcc*] {
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set compile_flags "$compile_flags additional_flags=-maltivec additional_flags=-mabi=altivec"
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} elseif [test_compiler_info xlc*] {
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set compile_flags "$compile_flags additional_flags=-qaltivec"
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} else {
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warning "unknown compiler"
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return -1
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}
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if { [gdb_compile ${srcdir}/${subdir}/${srcfile} ${binfile} executable $compile_flags] != "" } {
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untested altivec-regs.exp
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return -1
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}
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gdb_start
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gdb_reinitialize_dir $srcdir/$subdir
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gdb_load ${binfile}
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#
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# Run to `main' where we begin our tests.
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#
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if ![runto_main] then {
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gdb_suppress_tests
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}
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gdb_test "set print frame-arguments all"
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# set all the registers integer portions to 1
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for {set i 0} {$i < 32} {incr i 1} {
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for {set j 0} {$j < 4} {incr j 1} {
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gdb_test "set \$vr$i.v4_int32\[$j\] = 1" "" "set reg vr$i.v4si.f\[$j\]"
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}
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}
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gdb_test "set \$vscr = 1" "" ""
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gdb_test "set \$vrsave = 1" "" ""
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# Now execute some target code, so that GDB's register cache is flushed.
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gdb_test "next" "" ""
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send_gdb "show endian\n"
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set endianness ""
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gdb_expect {
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-re "(The target endianness is set automatically .currently )(big|little)( endian.*)$gdb_prompt $" {
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pass "endianness"
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set endianness $expect_out(2,string)
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}
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-re ".*$gdb_prompt $" {
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fail "couldn't get endianness"
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}
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timeout { fail "(timeout) endianness" }
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}
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# And then read the AltiVec registers back, to see that
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# a) the register write above worked, and
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# b) the register read (below) also works.
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if {$endianness == "big"} {
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set vector_register ".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.."
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} else {
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set vector_register ".uint128 = 0x00000001000000010000000100000001, v4_float = .0x0, 0x0, 0x0, 0x0., v4_int32 = .0x1, 0x1, 0x1, 0x1., v8_int16 = .0x1, 0x0, 0x1, 0x0, 0x1, 0x0, 0x1, 0x0., v16_int8 = .0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0.."
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}
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for {set i 0} {$i < 32} {incr i 1} {
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gdb_test "info reg vr$i" "vr$i.*$vector_register" "info reg vr$i"
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}
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gdb_test "info reg vrsave" "vrsave.*0x1\t1" "info reg vrsave"
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gdb_test "info reg vscr" "vscr.*0x1\t1" "info reg vscr"
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# Now redo the same tests, but using the print command.
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# Note: in LE case, the char array is printed WITHOUT the last character.
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# Gdb treats the terminating null char in the array like the terminating
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# null char in a string and doesn't print it. This is not a failure, but
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# the way gdb works.
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if {$endianness == "big"} {
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set decimal_vector ".uint128 = 0x00000001000000010000000100000001, v4_float = .1.*e-45, 1.*e-45, 1.*e-45, 1.*e-45., v4_int32 = .1, 1, 1, 1., v8_int16 = .0, 1, 0, 1, 0, 1, 0, 1., v16_int8 = .0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1.."
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} else {
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set decimal_vector ".uint128 = 0x00000001000000010000000100000001, v4_float = .1.*e-45, 1.*e-45, 1.*e-45, 1.*e-45., v4_int32 = .1, 1, 1, 1., v8_int16 = .1, 0, 1, 0, 1, 0, 1, 0., v16_int8 = .1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0.."
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}
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for {set i 0} {$i < 32} {incr i 1} {
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gdb_test "print \$vr$i" ".* = $decimal_vector" "print vr$i"
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}
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gdb_test "print \$vrsave" ".* = 1" "print vrsave"
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gdb_test "print \$vscr" ".* = 1" "print vscr"
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for {set i 0} {$i < 32} {incr i 1} {
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set pattern$i ".*vr$i.*"
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append pattern$i $vector_register
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}
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send_gdb "info vector\n"
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gdb_expect_list "info vector" ".*$gdb_prompt $" {
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[$pattern0]
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[$pattern1]
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[$pattern2]
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[$pattern3]
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[$pattern4]
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[$pattern5]
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[$pattern6]
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[$pattern7]
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[$pattern8]
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[$pattern9]
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[$pattern10]
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[$pattern11]
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[$pattern12]
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[$pattern13]
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[$pattern14]
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[$pattern15]
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[$pattern16]
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[$pattern17]
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[$pattern18]
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[$pattern19]
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[$pattern20]
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[$pattern21]
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[$pattern22]
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[$pattern23]
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[$pattern24]
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[$pattern25]
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[$pattern26]
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[$pattern27]
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[$pattern28]
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[$pattern29]
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[$pattern30]
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[$pattern31]
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"\[ \t\n\r\]+vscr\[ \t\]+0x1"
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"\[ \t\n\r\]+vrsave\[ \t\]+0x1"
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}
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gdb_test "break vector_fun" \
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"Breakpoint 2 at.*altivec-regs.c, line \[0-9\]+\\." \
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"Set breakpoint at vector_fun"
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# Actually it is nuch easier to see these results printed in hex.
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gdb_test "set output-radix 16" \
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"Output radix now set to decimal 16, hex 10, octal 20." \
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"Set output radix to hex"
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gdb_test "continue" \
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"Breakpoint 2, vector_fun .a=.0xfefefefe, 0xfefefefe, 0xfefefefe, 0xfefefefe., b=.0x1010101, 0x1010101, 0x1010101, 0x1010101.*altivec-regs.c.*vec_splat_u8.2..;" \
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"continue to vector_fun"
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# Do a next over the assignment to vector 'a'.
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gdb_test "next" ".*b = \\(\\(vector unsigned int\\) vec_splat_u8\\(3\\)\\);" \
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"next (1)"
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# Do a next over the assignment to vector 'b'.
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gdb_test "next" "c = vec_add \\(a, b\\);" \
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"next (2)"
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# Now 'a' should be '0x02020202...' and 'b' should be '0x03030303...'
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gdb_test "print/x a" \
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".*= .0x2020202, 0x2020202, 0x2020202, 0x2020202." \
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"print vector parameter a"
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gdb_test "print/x b" \
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".*= .0x3030303, 0x3030303, 0x3030303, 0x3030303." \
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"print vector parameter b"
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# If we do an 'up' now, and print 'x' and 'y' we should see the values they
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# have in main, not the values they have in vector_fun.
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gdb_test "up" ".1.*main \\(\\) at.*altivec-regs.c.*z = vector_fun \\(x, y\\);" \
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"up to main"
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gdb_test "print/x x" \
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".*= .0xfefefefe, 0xfefefefe, 0xfefefefe, 0xfefefefe." \
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"print vector x"
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gdb_test "print/x y" \
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".*= .0x1010101, 0x1010101, 0x1010101, 0x1010101." \
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"print vector y"
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# now go back to vector_func and do a finish, to see if we can print the return
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# value correctly.
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gdb_test "down" \
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".0 vector_fun \\(a=.0x2020202, 0x2020202, 0x2020202, 0x2020202., b=.0x3030303, 0x3030303, 0x3030303, 0x3030303.\\) at.*altivec-regs.c.*c = vec_add \\(a, b\\);" \
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"down to vector_fun"
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gdb_test "finish" \
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"Run till exit from .0 vector_fun \\(a=.0x2020202, 0x2020202, 0x2020202, 0x2020202., b=.0x3030303, 0x3030303, 0x3030303, 0x3030303.\\) at.*altivec-regs.c.*in main \\(\\) at.*altivec-regs.c.*z = vector_fun \\(x, y\\);.*Value returned is.*= .0x5050505, 0x5050505, 0x5050505, 0x5050505." \
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"finish returned correct value"
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