gdb/testsuite/gdb.base/floatn.exp

   1 # Copyright 2016-2018 Free Software Foundation, Inc.
   2
   3 # This program is free software; you can redistribute it and/or modify
   4 # it under the terms of the GNU General Public License as published by
   5 # the Free Software Foundation; either version 3 of the License, or
   6 # (at your option) any later version.
   7 #
   8 # This program is distributed in the hope that it will be useful,
   9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 # GNU General Public License for more details.
  12 #
  13 # You should have received a copy of the GNU General Public License
  14 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15
  16 # This file is part of the gdb testsuite.  It is intended to test that
  17 # gdb could correctly handle floating point constant with a suffix.
  18
  19 standard_testfile .c
  20
  21 proc do_compile { {opts {}} } {
  22     global srcdir subdir srcfile binfile
  23     set ccopts {debug quiet}
  24     foreach opt $opts {lappend ccopts "additional_flags=$opt"}
  25     gdb_compile "${srcdir}/${subdir}/${srcfile}" "$binfile" executable $ccopts
  26 }
  27
  28 if { [do_compile] != "" && [do_compile {-mfloat128}] != "" } {
  29     untested "compiler can't handle _FloatN/_FloatNx types?"
  30     return -1
  31 }
  32
  33 clean_restart ${binfile}
  34
  35 if ![runto_main] then {
  36     perror "couldn't run to breakpoint"
  37     continue
  38 }
  39
  40 # Run to the breakpoint at return.
  41 gdb_breakpoint [gdb_get_line_number "return"]
  42 gdb_continue_to_breakpoint "return"
  43
  44 # Print the original values of f32, f64, f128, f32x, f64x.
  45 gdb_test "print f32" ".* = 1\\.5.*" "the original value of f32 is 1.5"
  46 gdb_test "print f64" ".* = 2\\.25.*" "the original value of f64 is 2.25"
  47 gdb_test "print f128" ".* = 3\\.375.*" "the original value of f128 is 3.375"
  48 gdb_test "print f32x" ".* = 10\\.5.*" "the original value of f32x is 10.5"
  49 gdb_test "print f64x" ".* = 20\\.25.*" "the original value of f64x is 20.25"
  50
  51 # Test that gdb could correctly recognize float constant expression with a suffix.
  52 # FIXME: gdb does not yet recognize the suffix for _FloatN/_FloatNx types.
  53 gdb_test "print f32=-1.5" ".* = -1\\.5.*" "try to change f32 to -1.5 with 'print f32=-1.5'"
  54 gdb_test "print f64=-2.25" ".* = -2\\.25.*" "try to change f64 to -2.25 with 'print f64=-2.25'"
  55 gdb_test "print f128=-3.375" ".* = -3\\.375.*" "try to change f128 to -3.375 with 'print f128=-3.375'"
  56 gdb_test "print f32x=-10.5" ".* = -10\\.5.*" "try to change f32x to -10.5 with 'print f32=-1.5x'"
  57 gdb_test "print f64x=-20.25" ".* = -20\\.25.*" "try to change f64x to -20.25 with 'print f64=-2.25x'"
  58
  59 # Test that gdb could handle the above correctly with "set var" command.
  60 set test "set variable f32 = 10.5"
  61 gdb_test_multiple "set var f32=10.5" "$test" {
  62     -re "$gdb_prompt $" {
  63         pass "$test"
  64     }
  65     -re "Invalid number.*$gdb_prompt $" {
  66         fail "$test (do not recognize 10.5)"
  67     }
  68 }
  69
  70 set test "set variable f64 = 20.25"
  71 gdb_test_multiple "set var f64=20.25" "$test" {
  72     -re "$gdb_prompt $" {
  73         pass "$test"
  74     }
  75     -re "Invalid number.*$gdb_prompt $" {
  76         fail "$test (do not recognize 20.25)"
  77     }
  78 }
  79
  80 set test "set variable f128 = 30.375"
  81 gdb_test_multiple "set var f128=30.375" "$test" {
  82     -re "$gdb_prompt $" {
  83         pass "$test"
  84     }
  85     -re "Invalid number.*$gdb_prompt $" {
  86         fail "$test (do not recognize 30.375)"
  87     }
  88 }
  89
  90 set test "set variable f32x = 100.5"
  91 gdb_test_multiple "set var f32x=100.5" "$test" {
  92     -re "$gdb_prompt $" {
  93         pass "$test"
  94     }
  95     -re "Invalid number.*$gdb_prompt $" {
  96         fail "$test (do not recognize 100.5)"
  97     }
  98 }
  99
 100 set test "set variable f64x = 200.25"
 101 gdb_test_multiple "set var f64x=200.25" "$test" {
 102     -re "$gdb_prompt $" {
 103         pass "$test"
 104     }
 105     -re "Invalid number.*$gdb_prompt $" {
 106         fail "$test (do not recognize 200.25)"
 107     }
 108 }
 109
 110 gdb_test "print f32" ".* = 10\\.5.*" "the value of f32 is changed to 10.5"
 111 gdb_test "print f64" ".* = 20\\.25.*" "the value of f64 is changed to 20.25"
 112 gdb_test "print f128" ".* = 30\\.375.*" "the value of f128 is changed to 30.375"
 113 gdb_test "print f32x" ".* = 100\\.5.*" "the value of f32x is changed to 100.5"
 114 gdb_test "print f64x" ".* = 200\\.25.*" "the value of f64x is changed to 200.25"
 115
 116 # Print the original values of c32, c64, c128, c32x, c64x.
 117 gdb_test "print c32" ".* = 1\\.5 \\+ 1 \\* I.*" "the original value of c32 is 1.5 + 1 * I"
 118 gdb_test "print c64" ".* = 2\\.25 \\+ 1 \\* I.*" "the original value of c64 is 2.25 + 1 * I"
 119 gdb_test "print c128" ".* = 3\\.375 \\+ 1 \\* I.*" "the original value of c128 is 3.375 + 1 * I"
 120 gdb_test "print c32x" ".* = 10\\.5 \\+ 1 \\* I.*" "the original value of c32x is 10.5 + 1 * I"
 121 gdb_test "print c64x" ".* = 20\\.25 \\+ 1 \\* I.*" "the original value of c64x is 20.25 + 1 * I"
 122
 123 # FIXME: GDB cannot parse non-trivial complex constants yet.
 124