119 lines
3.9 KiB
Text
119 lines
3.9 KiB
Text
# Copyright 2022 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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# Test floating-point literal extension.
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load_lib "ada.exp"
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if { [skip_ada_tests] } { return -1 }
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standard_ada_testfile prog
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if {[gdb_compile_ada "${srcfile}" "${binfile}" executable {debug}] != ""} {
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return -1
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}
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# Given a floating point EXPRESSION, return the size of the result.
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proc float_size { expression } {
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set size 0
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gdb_test_multiple "ptype ${expression}" "" {
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-re -wrap "<16-byte float>" {
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set size 16
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}
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-re -wrap "<12-byte float>" {
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set size 12
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}
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-re -wrap "<\\d+-byte float>" {
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# Assume 8 for anything less than or equal to 8.
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set size 8
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}
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}
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return $size
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}
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clean_restart ${testfile}
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set bp_location [gdb_get_line_number "BREAK" ${testdir}/prog.adb]
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runto "prog.adb:$bp_location"
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gdb_test "print 16f#41b80000#" " = 23.0"
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gdb_test "print val_float" " = 23.0"
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gdb_test "print val_float := 16f#41b80000#" " = 23.0"
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gdb_test "print val_float" " = 23.0" \
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"print val_float after assignment"
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gdb_test "print 16lf#bc0d83c94fb6d2ac#" " = -2.0e-19"
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gdb_test "print val_double" " = -2.0e-19"
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gdb_test "print val_double := 16lf#bc0d83c94fb6d2ac#" " = -2.0e-19"
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gdb_test "print val_double" " = -2.0e-19" \
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"print val_double after assignment"
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# Fetch the size of a compiler-generated long double.
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set compiler_long_double_size [float_size "long_long_float" ]
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# Fetch the size of an internal long double type in GDB.
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set gdb_long_double_size [float_size "16llf#0#" ]
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# Different architectures use different long double formats. For
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# example, IEEE quad versus i387 long doubles. Account for that in the
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# tests below.
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# Set default values for 128-bit IEEE quad long doubles.
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set valid_long_double "16llf#4000921fb54442d18469898cc51701b8#"
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set printed_long_double "3.1415926535897932384626433832795028"
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set invalid_long_double ""
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set has_invalid_long_double 0
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if { [istarget x86_64-*-* ] || [istarget i?86-*-*] } {
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# i387 long double have invalid values
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set has_invalid_long_double 1
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if { $compiler_long_double_size == 16 } {
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# 5.0e+25 in i387 128-bit long double.
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set valid_long_double "16llf#7ffff7ff4054a56fa5b99019a5c8#"
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set invalid_long_double "16llf#a56fa5b99019a5c800007ffff7ff4054#"
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set printed_long_double "5.0e\\+25"
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} elseif { $compiler_long_double_size == 12 } {
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# 5.0e+25 in i387 80-bit long double.
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set valid_long_double "16llf#56554054a56fa5b99019a5c8#"
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set invalid_long_double "16llf#9019a5c800007ffff7ff4054#"
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set printed_long_double "5.0e\\+25"
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}
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}
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# Exercise GDB-side long doubles.
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if { $gdb_long_double_size > 8 } {
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gdb_test "print ${valid_long_double}" " = ${printed_long_double}"
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gdb_test "print \$foo:=${valid_long_double}" "= ${printed_long_double}"
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gdb_test "print \$foo" "= ${printed_long_double}" \
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"print internal long double variable after assignment"
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}
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# Exercise compiler-side long doubles.
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if { $compiler_long_double_size > 8 } {
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gdb_test "print val_long_double" " = 5.0e\\+25"
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gdb_test "print val_long_double := ${valid_long_double}" \
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" = ${printed_long_double}"
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gdb_test "print val_long_double" " = ${printed_long_double}" \
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"print val_long_double after assignment"
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}
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# If the target has invalid long double values, test it now.
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if { $has_invalid_long_double } {
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gdb_test "print ${invalid_long_double}" \
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" = <invalid float value>" "print invalid long double value"
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}
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