derek.holloway
7502bf64a4
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61 lines
1.9 KiB
Plaintext
61 lines
1.9 KiB
Plaintext
# Copyright (C) 2008-2024 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 Decimal Floating Point registers setting and fetching
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require {istarget "powerpc*"}
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standard_testfile
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if ![test_compiler_info gcc*] {
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# We use GCC's extended asm syntax
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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 {quiet debug}] != "" } {
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unsupported "this machine doesn't support Decimal Floating Point."
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return -1
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}
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clean_restart $binfile
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gdb_breakpoint [gdb_get_line_number "Set DFP rounding mode."]
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gdb_run_cmd
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# When the prompt comes back we'll be at the Set DFP rounding mode breakpoint.
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# Unless the program bails out after checking AT_HWCAP.
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gdb_expect {
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-re "$inferior_exited_re with code 01.\[\r\n\]+$gdb_prompt $" {
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unsupported "this machine doesn't support Decimal Floating Point."
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return -1
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}
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-re ".*$gdb_prompt $" {}
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}
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# First, verify if FPSCR is all zeroes.
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gdb_test "print \$fpscr" " = 0" "FPSCR is all zeroes"
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# Step over "set rounding mode" instruction.
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gdb_test "next" "" ""
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# Verify that the following bits are set (See Power ISA for details):
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#
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# 29:31 - DFP Rounding Control
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gdb_test "print/t \$fpscr" " = 10100000000000000000000000000000000" "FPSCR for round to nearest, ties toward zero rounding mode"
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