| # Copyright (C) 2002-2021 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/>. |
| # |
| |
| # Tests for Powerpc AltiVec register setting and fetching |
| |
| # |
| # Test the use of registers, especially AltiVec registers, for Powerpc. |
| # This file uses altivec-regs.c for input. |
| # |
| |
| |
| if {![istarget "powerpc*"] || [skip_altivec_tests]} then { |
| verbose "Skipping altivec register tests." |
| return |
| } |
| |
| standard_testfile |
| |
| set compile_flags {debug nowarnings} |
| 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 ${binfile} |
| |
| # |
| # Run to `main' where we begin our tests. |
| # |
| |
| if ![runto_main] then { |
| return 0 |
| } |
| |
| gdb_test "set print frame-arguments all" |
| |
| # set all the registers integer portions to 1 |
| for {set i 0} {$i < 32} {incr i 1} { |
| for {set j 0} {$j < 4} {incr j 1} { |
| gdb_test "set \$vr$i.v4_int32\[$j\] = 1" "" "set reg vr$i.v4si.f\[$j\]" |
| } |
| } |
| |
| gdb_test "set \$vscr = 1" "" "" |
| gdb_test "set \$vrsave = 1" "" "" |
| |
| # Now execute some target code, so that GDB's register cache is flushed. |
| |
| gdb_test "next" "" "" |
| |
| set endianness [get_endianness] |
| |
| # And then read the AltiVec registers back, to see that |
| # a) the register write above worked, and |
| # b) the register read (below) also works. |
| |
| if {$endianness == "big"} { |
| set vector_register ".uint128 = 0x1000000010000000100000001, v4_float = .0x0, 0x0, 0x0, 0x0., v4_int32 = .0x1, 0x1, 0x1, 0x1., v8_int16 = .0x0, 0x1, 0x0, 0x1, 0x0, 0x1, 0x0, 0x1., v16_int8 = .0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1.." |
| } else { |
| set vector_register ".uint128 = 0x1000000010000000100000001, v4_float = .0x0, 0x0, 0x0, 0x0., v4_int32 = .0x1, 0x1, 0x1, 0x1., v8_int16 = .0x1, 0x0, 0x1, 0x0, 0x1, 0x0, 0x1, 0x0., v16_int8 = .0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0.." |
| } |
| |
| for {set i 0} {$i < 32} {incr i 1} { |
| gdb_test "info reg vr$i" "vr$i.*$vector_register" "info reg vr$i" |
| gdb_test "info reg v$i" "v$i.*$vector_register" "info reg v$i" |
| } |
| |
| gdb_test "info reg vrsave" "vrsave.*0x1\[ \t\]+1" "info reg vrsave" |
| gdb_test "info reg vscr" "vscr.*0x1\[ \t\]+1" "info reg vscr" |
| |
| # Now redo the same tests, but using the print command. |
| # Note: in LE case, the char array is printed WITHOUT the last character. |
| # Gdb treats the terminating null char in the array like the terminating |
| # null char in a string and doesn't print it. This is not a failure, but |
| # the way gdb works. |
| |
| if {$endianness == "big"} { |
| set decimal_vector ".uint128 = 79228162532711081671548469249, v4_float = .1.*e-45, 1.*e-45, 1.*e-45, 1.*e-45., v4_int32 = .1, 1, 1, 1., v8_int16 = .0, 1, 0, 1, 0, 1, 0, 1., v16_int8 = .0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1.." |
| } else { |
| set decimal_vector ".uint128 = 79228162532711081671548469249, v4_float = .1.*e-45, 1.*e-45, 1.*e-45, 1.*e-45., v4_int32 = .1, 1, 1, 1., v8_int16 = .1, 0, 1, 0, 1, 0, 1, 0., v16_int8 = .1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0.." |
| } |
| |
| for {set i 0} {$i < 32} {incr i 1} { |
| gdb_test "print \$vr$i" ".* = $decimal_vector" "print vr$i" |
| gdb_test "print \$v$i" ".* = $decimal_vector" "print v$i" |
| } |
| |
| gdb_test "print \$vrsave" ".* = 1" "print vrsave" |
| gdb_test "print \$vscr" ".* = 1" "print vscr" |
| |
| for {set i 0} {$i < 32} {incr i 1} { |
| lappend pattern_list "vr$i\[ \t\]+$vector_register" |
| } |
| |
| lappend pattern_list "vscr\[ \t\]+0x1" |
| lappend pattern_list "vrsave\[ \t\]+0x1" |
| |
| send_gdb "info vector\n" |
| gdb_expect_list "info vector" ".*$gdb_prompt $" $pattern_list |
| |
| gdb_test "break vector_fun" \ |
| "Breakpoint 2 at.*altivec-regs.c, line \[0-9\]+\\." \ |
| "set breakpoint at vector_fun" |
| |
| # Actually it is nuch easier to see these results printed in hex. |
| gdb_test "set output-radix 16" \ |
| "Output radix now set to decimal 16, hex 10, octal 20." \ |
| "set output radix to hex" |
| |
| gdb_test "continue" \ |
| "Breakpoint 2, vector_fun .a=.0xfefefefe, 0xfefefefe, 0xfefefefe, 0xfefefefe., b=.0x1010101, 0x1010101, 0x1010101, 0x1010101.*altivec-regs.c.*vec_splat_u8.2..;" \ |
| "continue to vector_fun" |
| |
| # Do a next over the assignment to vector 'a'. |
| gdb_test "next" ".*b = \\(\\(vector unsigned int\\) vec_splat_u8\\(3\\)\\);" \ |
| "next (1)" |
| |
| # Do a next over the assignment to vector 'b'. |
| gdb_test "next" "c = vec_add \\(a, b\\);" \ |
| "next (2)" |
| |
| # Now 'a' should be '0x02020202...' and 'b' should be '0x03030303...' |
| gdb_test "print/x a" \ |
| ".*= .0x2020202, 0x2020202, 0x2020202, 0x2020202." \ |
| "print vector parameter a" |
| |
| gdb_test "print/x b" \ |
| ".*= .0x3030303, 0x3030303, 0x3030303, 0x3030303." \ |
| "print vector parameter b" |
| |
| # If we do an 'up' now, and print 'x' and 'y' we should see the values they |
| # have in main, not the values they have in vector_fun. |
| gdb_test "up" ".1.*main \\(\\) at.*altivec-regs.c.*z = vector_fun \\(x, y\\);" \ |
| "up to main" |
| |
| gdb_test "print/x x" \ |
| ".*= .0xfefefefe, 0xfefefefe, 0xfefefefe, 0xfefefefe." \ |
| "print vector x" |
| |
| gdb_test "print/x y" \ |
| ".*= .0x1010101, 0x1010101, 0x1010101, 0x1010101." \ |
| "print vector y" |
| |
| # now go back to vector_func and do a finish, to see if we can print the return |
| # value correctly. |
| |
| gdb_test "down" \ |
| ".0 vector_fun \\(a=.0x2020202, 0x2020202, 0x2020202, 0x2020202., b=.0x3030303, 0x3030303, 0x3030303, 0x3030303.\\) at.*altivec-regs.c.*c = vec_add \\(a, b\\);" \ |
| "down to vector_fun" |
| |
| gdb_test "finish" \ |
| "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." \ |
| "finish returned correct value" |
| |
| |
| |
