| # 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/>. |
| # |
| |
| # Tests for Powerpc Decimal Floating Point registers setting and fetching |
| |
| if ![istarget "powerpc*"] then { |
| verbose "Skipping powerpc decimal floating point register tests." |
| return |
| } |
| |
| standard_testfile |
| |
| if [get_compiler_info] { |
| warning "get_compiler failed" |
| return -1 |
| } |
| |
| if ![test_compiler_info gcc*] { |
| # We use GCC's extended asm syntax |
| warning "unknown compiler" |
| return -1 |
| } |
| |
| if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {quiet debug}] != "" } { |
| unsupported "this machine doesn't support Decimal Floating Point." |
| return -1 |
| } |
| |
| # Start with a fresh gdb. |
| |
| gdb_exit |
| gdb_start |
| gdb_reinitialize_dir $srcdir/$subdir |
| gdb_load ${binfile} |
| |
| gdb_breakpoint [gdb_get_line_number "Set DFP rounding mode."] |
| |
| gdb_run_cmd |
| |
| # When the prompt comes back we'll be at the Set DFP rounding mode breakpoint. |
| # Unless the program bails out after checking AT_HWCAP. |
| gdb_expect { |
| -re "$inferior_exited_re with code 01.\[\r\n\]+$gdb_prompt $" { |
| unsupported "this machine doesn't support Decimal Floating Point." |
| return -1 |
| } |
| |
| -re ".*$gdb_prompt $" {} |
| } |
| |
| # First, verify if FPSCR is all zeroes. |
| gdb_test "print \$fpscr" " = 0" "FPSCR is all zeroes" |
| |
| # Step over "set rounding mode" instruction. |
| gdb_test "next" "" "" |
| |
| # Verify that the following bits are set (See Power ISA for details): |
| # |
| # 29:31 - DFP Rounding Control |
| gdb_test "print/t \$fpscr" " = 10100000000000000000000000000000000" "FPSCR for round to nearest, ties toward zero rounding mode" |