gdb/testsuite/gdb.base/dfp-test.exp

   1 # Copyright (C) 2007, 2008 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 was written by Wu Zhou. (woodzltc@cn.ibm.com)
  17
  18 # This file is part of the gdb testsuite.  It is intended to test that
  19 # gdb could correctly handle decimal floating point introduced in IEEE 754R.
  20
  21 if $tracelevel then {
  22   strace $tracelevel
  23 }
  24
  25 set testfile "dfp-test"
  26 set srcfile ${testfile}.c
  27 set binfile ${objdir}/${subdir}/${testfile}
  28
  29 # Try to compile the test case.  If we can't, assume the
  30 # toolchain does not yet provide DFP support and bail out.
  31 if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {quiet debug}] != "" } {
  32     verbose "Skipping DFP tests."
  33     return -1
  34 }
  35
  36 gdb_exit
  37 gdb_start
  38 gdb_reinitialize_dir $srcdir/$subdir
  39 gdb_load ${binfile}
  40
  41 if ![runto_main] then {
  42     perror "couldn't run to breakpoint"
  43     continue
  44 }
  45
  46 # Detect the size of the target's basic types (from gdb.base/long_long.exp).
  47
  48 proc get_valueof { fmt exp default } {
  49     global gdb_prompt
  50     send_gdb "print${fmt} ${exp}\n"
  51     gdb_expect {
  52         -re "\\$\[0-9\]* = (\[-\]*\[0-9\]*).*$gdb_prompt $" {
  53             set val $expect_out(1,string)
  54         }
  55         timeout {
  56             set val ${default}
  57         }
  58     }
  59     return ${val}
  60 }
  61
  62 proc get_sizeof { type default } {
  63     return [get_valueof "/d" "sizeof (${type})" $default]
  64 }
  65
  66 set sizeof_long [get_sizeof "long" 4]
  67
  68 proc d32_set_tests {} {
  69
  70     gdb_test "p d32=123.45df" " = 123.45"
  71     gdb_test "p d32=12345.df" " = 12345"
  72     gdb_test "p d32=12345.67df" " = 12345.67"
  73     gdb_test "p d32=1234567.df" " = 1234567"
  74
  75     gdb_test "p d32=1.234567E0df" " = 1.234567"
  76     gdb_test "p d32=1.234567E10df" " = 1.234567E\\+10"
  77     gdb_test "p d32=1.234567E+96df" " = 1.234567E\\+96"
  78
  79     # Test that gdb could handle the max, normalized min and subnormalized min.
  80     gdb_test "p d32=9.999999E96df" " = 9.999999E\\+96"
  81     gdb_test "p d32=1.0E-95df" " = 1.0E\\-95"
  82     gdb_test "p d32=1.E-101df" " = 1E\\-101"
  83     gdb_test "p d32=0.000001E-95df" " = 1E\\-101"
  84
  85     # Test that gdb could detect coefficient/exponent out of range.
  86     # The coefficient out of range will be rounded to its nearest value.
  87     # And the exponent out of range will be handled as infinity.
  88     gdb_test "p d32=1.2345678df" " = 1.234568" "1.2345678 is rounded to 1.234568"
  89     gdb_test "p d32=1.0E-101df" " = 1E-101" "1.0E-101 is rounded to 1E-101"
  90     gdb_test "p d32=1.234567E+97df" " = Infinity" "1.234567E+97 is Infinity"
  91
  92     # Test that gdb could detect the errors in the string representation of _Decimal32
  93     gdb_test "p d32=12345.df" " = 12345" "12345. is a valid number"
  94     gdb_test "p d32=12345df" ".*Invalid number.*" "12345 is an invalid number"
  95     gdb_test "p d32=1.23Edf" ".*Conversion syntax.*" "1.23E is an invalid number"
  96     gdb_test "p d32=1.23E45Adf" ".*Conversion syntax.*" "1.23E45A is an invalid number"
  97 }
  98
  99 proc d64_set_tests {} {
 100
 101     gdb_test "p d64=123.45dd" " = 123.45"
 102     gdb_test "p d64=12345.dd" " = 12345"
 103     gdb_test "p d64=12345.67dd" " = 12345.67"
 104     gdb_test "p d64=1.234567890123456dd" " = 1.234567890123456"
 105
 106     gdb_test "p d64=1.234567890123456E10dd" " = 12345678901.23456"
 107     gdb_test "p d64=1.234567890123456E100dd" " = 1.234567890123456E\\+100"
 108     gdb_test "p d64=1.234567890123456E384dd" " = 1.234567890123456E\\+384"
 109
 110     # Test that gdb could handle the max, normalized min and subnormalized min.
 111     gdb_test "p d64=9.999999999999999E384dd" " = 9.999999999999999E\\+384"
 112     gdb_test "p d64=1.E-383dd" " = 1E\\-383"
 113     gdb_test "p d64=1.E-398dd" " = 1E\\-398"
 114     gdb_test "p d64=0.000000000000001E-383dd" " = 1E\\-398"
 115
 116     # Test that gdb could detect coefficient/exponent out of range.
 117     # The coefficient out of range will be rounded to its nearest value.
 118     # And the exponent out of range will be handled as infinity.
 119     gdb_test "p d64=1.2345678901234567dd" " = 1.234567890123457" "1.2345678901234567 is rounded to 1.234567890123457"
 120     gdb_test "p d64=9.9999999999999999E384dd" " = Infinity" "d64=9.9999999999999999E384 is Infinity"
 121     gdb_test "p d64=1.234567890123456E385dd" " = Infinity" "d64=1.234567890123456E385 is Infinity"
 122
 123     # Test that gdb could detect the errors in the string representation of _Decimal64
 124     gdb_test "p d64=12345dd" ".*Invalid number.*" "12345dd is an invalid number"
 125     gdb_test "p d64=1.23Edd" ".*Conversion syntax.*" "1.23E is an invalid number"
 126     gdb_test "p d64=1.23E45Add" ".*Conversion syntax.*" "1.23E45A is an invalid number"
 127 }
 128
 129 proc d128_set_tests {} {
 130
 131     gdb_test "p d128=123.45dl" " = 123.45"
 132     gdb_test "p d128=12345.dl" " = 12345"
 133     gdb_test "p d128=12345.67dl" " = 12345.67"
 134     gdb_test "p d128=1.234567890123456789012345678901234dl" " = 1.234567890123456789012345678901234"
 135
 136     gdb_test "p d128=1.234567890123456E10dl" " = 12345678901.23456"
 137     gdb_test "p d128=1.234567890123456E100dl" " = 1.234567890123456E\\+100"
 138     gdb_test "p d128=1.234567890123456E1000dl" " = 1.234567890123456E\\+1000"
 139
 140     # Test that gdb could handle the max, normalized min and subnormalized min.
 141     gdb_test "p d128=9.999999999999999999999999999999999E6144dl" " = 9.999999999999999999999999999999999E\\+6144"
 142     gdb_test "p d128=1.E-6143dl" " = 1E\\-6143"
 143     gdb_test "p d128=1.E-6176dl" " = 1E\\-6176"
 144     gdb_test "p d128=0.000000000000000000000000000000001E-6143dl" " = 1E\\-6176"
 145
 146     # Test that gdb could detect coefficient/exponent out of range.
 147     # The coefficient out of range will be rounded to its nearest value.
 148     # And the exponent out of range will be handled as infinity.
 149     gdb_test "p d128=1.2345678901234567890123456789012345dl" "1.234567890123456789012345678901234" "1.2345678901234567890123456789012345 is rounded to 1.234567890123456789012345678901234"
 150     gdb_test "p d128=1.234567890123456E6145dl" "Infinity" "d128=1.234567890123456E6145 is Infinity"
 151
 152     # Test that gdb could detect the errors in the string representation of _Decimal128
 153     gdb_test "p d128=12345dl" ".*Invalid number.*" "12345dl is an invalid number"
 154     gdb_test "p d128=1.23Edl" ".*Conversion syntax.*" "1.23E is an invalid number"
 155     gdb_test "p d128=1.23E45Adl" ".*Conversion syntax.*" "1.23E45A is an invalid number"
 156 }
 157
 158 # Different tests on 32-bits decimal floating point, including the printing
 159 # of finite numbers, infinite and NaN, and also the setting of different
 160 # decimal value.
 161
 162 if [gdb_test "next" \
 163     ".*Positive infd32.*" \
 164     "next after initializing d32"] then { gdb_suppress_tests }
 165 gdb_test "print d32" "1.2345" "d32 is initialized to 1.2345"
 166
 167 if [gdb_test "next" \
 168     ".*Negative infd32.*" \
 169     "next after assigning builtin infinity to d32"] then { gdb_suppress_tests }
 170 gdb_test "print d32" "Infinity" "d32 is positive Infinity"
 171
 172 if [gdb_test "next" \
 173     ".*__builtin_nand32.*" \
 174     "next after assigning negative builtin infinity to d32"] then { gdb_suppress_tests }
 175 gdb_test "print d32" "-Infinity" "d32 is negative Infinity"
 176
 177 if [gdb_test "next" \
 178     ".*d64 = 1.2345.*" \
 179     "next after assigning builtin NaN to d32"] then { gdb_suppress_tests }
 180 gdb_test "print d32" "NaN" "d32 is NaN"
 181
 182 d32_set_tests
 183
 184
 185 # Different tests on 64-bits decimal floating point, including the display
 186 # of finite number, infinite and NaN, and also the setting of different
 187 # decimal value.
 188
 189 if [gdb_test "next" \
 190     ".*Positive infd64.*" \
 191     "next after initializing d64"] then { gdb_suppress_tests }
 192 gdb_test "print d64" "1.2345" "d64 is initialized to 1.2345"
 193
 194 if [gdb_test "next" \
 195     ".*Negative infd64.*" \
 196     "next after assigning builtin infinity to d64"] then { gdb_suppress_tests }
 197 gdb_test "print d64" "Infinity" "d64 is positive Infinity"
 198
 199 if [gdb_test "next" \
 200     ".*__builtin_nand64.*" \
 201     "next after assigning negative builtin infinity to d64"] then { gdb_suppress_tests }
 202 gdb_test "print d64" "-Infinity" "d64 is negative Infinity"
 203
 204 if [gdb_test "next" \
 205     ".*d128 = 1.2345.*" \
 206     "next after assigning builtin NaN to d64"] then { gdb_suppress_tests }
 207 gdb_test "print d64" "NaN" "d64 is NaN"
 208
 209 d64_set_tests
 210
 211
 212 # Different tests on 128-bits decimal floating point, including the display
 213 # of finite number, infinite and NaN, and also the setting of different
 214 # decimal value.
 215
 216 if [gdb_test "next" \
 217     ".*Positive infd128.*" \
 218     "next after initializing d128"] then { gdb_suppress_tests }
 219 gdb_test "print d128" "1.2345" "d128 is initialized to 1.2345"
 220
 221 d128_set_tests
 222
 223 if [gdb_test "next" \
 224     ".*Negative infd128.*" \
 225     "next after assigning builtin infinity to d128"] then { gdb_suppress_tests }
 226 gdb_test "print d128" "Infinity" "d128 is positive Infinity"
 227
 228 if [gdb_test "next" \
 229     ".*__builtin_nand128.*" \
 230     "next after assigning negative builtin infinity to d128"] then { gdb_suppress_tests }
 231 gdb_test "print d128" "-Infinity" "d128 is negative Infinity"
 232
 233 if [gdb_test "next" \
 234     ".*arg0_32.*" \
 235     "next after assigning builtin NaN to d128"] then { gdb_suppress_tests }
 236 gdb_test "print d128" "NaN" "d128 is NaN"
 237
 238 # The following tests are intended to verify that gdb can correctly handle
 239 # DFP types in function arguments.
 240
 241 gdb_breakpoint arg0_32
 242 gdb_continue_to_breakpoint "entry to arg0_32"
 243 gdb_test "backtrace" ".*arg0_32 \\(arg0=0.1, arg1=1.0, arg2=2.0, arg3=3.0, arg4=4.0, arg5=5.0\\).*" "backtrace at arg0_32"
 244
 245 gdb_breakpoint arg0_64
 246 gdb_continue_to_breakpoint "entry to arg0_64"
 247 gdb_test "backtrace" ".*arg0_64 \\(arg0=0.1, arg1=1.0, arg2=2.0, arg3=3.0, arg4=4.0, arg5=5.0\\).*" "backtrace at arg0_64"
 248
 249 gdb_breakpoint arg0_128
 250 gdb_continue_to_breakpoint "entry to arg0_128"
 251 gdb_test "backtrace" ".*arg0_128 \\(arg0=0.1, arg1=1.0, arg2=2.0, arg3=3.0, arg4=4.0, arg5=5.0\\).*" "backtrace at arg0_128"
 252
 253 # Test calling inferior function with DFP arguments or return value.
 254
 255 gdb_test "call arg0_32 (1.2df, 2.2df, 3.2df, 4.2df, 5.2df, 6.2df)" "Breakpoint.*arg0_32.*" "Call function with correct _Decimal32 arguments."
 256 gdb_test "backtrace 1" "\n#\[0-9\]+  arg0_32 \\(arg0=1.2, arg1=2.2, arg2=3.2, arg3=4.2, arg4=5.2, arg5=6.2\\).*" "Backtrace function with correct _Decimal32 arguments."
 257 gdb_test "finish" " = 1.2" "Correct _Decimal32 return value from called function."
 258
 259 gdb_test "call arg0_64 (1.2dd, 2.2dd, 3.2dd, 4.2dd, 5.2dd, 6.2dd)" "Breakpoint.*arg0_64.*" "Call function with correct _Decimal64 arguments."
 260 gdb_test "backtrace 1" "\n#\[0-9\]+  arg0_64 \\(arg0=1.2, arg1=2.2, arg2=3.2, arg3=4.2, arg4=5.2, arg5=6.2\\).*" "Backtrace function with correct _Decimal64 arguments."
 261 gdb_test "finish" " = 1.2" "Correct _Decimal64 return value from called function."
 262
 263 gdb_test "call arg0_128 (1.2dl, 2.2dl, 3.2dl, 4.2dl, 5.2dl, 6.2dl)" "Breakpoint.*arg0_128.*" "Call function with correct _Decimal128 arguments."
 264 gdb_test "backtrace 1" "\n#\[0-9\]+  arg0_128 \\(arg0=1.2, arg1=2.2, arg2=3.2, arg3=4.2, arg4=5.2, arg5=6.2\\).*" "Backtrace function with correct _Decimal128 arguments."
 265 gdb_test "finish" " = 1.2" "Correct _Decimal128 return value from called function."
 266
 267 gdb_test "call decimal_dec128_align (double_val1, dec128_val2, double_val3, double_val4, double_val5, double_val6, double_val7, double_val8, double_val9, double_val10, double_val11, double_val12, double_val13, double_val14)" " = 1" \
 268   "Call function with mixed decimal float arguments TEST."
 269
 270 gdb_test "call decimal_mixed (dec32_val1, dec64_val1, dec128_val1)" " = 1" \
 271   "Call function with mixed decimal float arguments."
 272
 273 gdb_test "call decimal_many_args_dec32 (dec32_val1, dec32_val2, dec32_val3, dec32_val4, dec32_val5, dec32_val6, dec32_val7, dec32_val8, dec32_val9, dec32_val10, dec32_val11, dec32_val12, dec32_val13, dec32_val14, dec32_val15, dec32_val16)" " = 1" \
 274   "Call function with many _Decimal32 arguments."
 275
 276 gdb_test "call decimal_many_args_dec64 (dec64_val1, dec64_val2, dec64_val3, dec64_val4, dec64_val5, dec64_val6, dec64_val7, dec64_val8, dec64_val9, dec64_val10, dec64_val11, dec64_val12, dec64_val13, dec64_val14, dec64_val15, dec64_val16)" " = 1" \
 277   "Call function with many _Decimal64 arguments."
 278
 279 gdb_test "call decimal_many_args_dec128 (dec128_val1, dec128_val2, dec128_val3, dec128_val4, dec128_val5, dec128_val6, dec128_val7, dec128_val8, dec128_val9, dec128_val10, dec128_val11, dec128_val12, dec128_val13, dec128_val14, dec128_val15, dec128_val16)" " = 1" \
 280   "Call function with many _Decimal128 arguments."
 281
 282 gdb_test "call decimal_many_args_mixed (dec32_val1, dec32_val2, dec32_val3, dec64_val4, dec64_val5, dec64_val6, dec64_val7, dec128_val8, dec128_val9, dec128_val10, dec32_val11, dec64_val12, dec32_val13, dec64_val14, dec128_val15)" " = 1" \
 283   "Call function with many mixed decimal float arguments."
 284
 285 # The following tests are intended to verify that gdb can handle DFP types
 286 # correctly in struct.
 287
 288 gdb_breakpoint [gdb_get_line_number "Exit point"]
 289 gdb_continue_to_breakpoint "Setting a decimal struct"
 290 gdb_test "print ds.dec32" " = 1.2345"
 291 gdb_test "print ds.dec64" " = 1.2345"
 292 gdb_test "print ds.dec128" " = 1.2345"
 293
 294 # Test expressions with DFP variables.
 295
 296 gdb_test "print d32 + ds.dec32" " = 1.3345"
 297 gdb_test "print d64 + ds.dec64" " = 1.3345"
 298 gdb_test "print d128 + ds.dec128" " = 1.3345"
 299
 300 # Test conversion between different _Decimal sizes.
 301
 302 gdb_test "ptype d64 + ds.dec32" " = volatile _Decimal64"
 303 gdb_test "ptype d128 + ds.dec32" " = volatile _Decimal128"
 304 gdb_test "ptype d128 + ds.dec64" " = volatile _Decimal128"
 305
 306 # Mixture of Decimal and integral operands
 307 gdb_test "p d32 + 1" " = 1.1"
 308 gdb_test "p 2 + d64" " = 2.1"
 309 gdb_test "p ds.int4 + d128" " = 1.1"
 310 gdb_test "ptype d32 + 1" " = volatile _Decimal32"
 311 gdb_test "ptype ds.int4 + d128" " = volatile _Decimal128"
 312
 313 # Test other operations with DFP operands
 314 gdb_test "p !d32" " = 0"
 315 gdb_test "p !d64" " = 0"
 316 gdb_test "p !d128" " = 0"
 317 gdb_test "p +d32" " = 0.1"
 318 gdb_test "p +d64" " = 0.1"
 319 gdb_test "p +d128" " = 0.1"
 320 gdb_test "p d64 == d128" " = 1"
 321 gdb_test "p d128 == ds.dec32" " = 0"
 322 gdb_test "p d128 == d32" " = 1"
 323 gdb_test "p ds.dec32 == ds.dec64" " = 1"
 324 gdb_test "p d32 < ds.dec32" " = 1"
 325 gdb_test "p d64 < ds.dec64" " = 1"
 326 gdb_test "p d128 < ds.dec128" " = 1"
 327 gdb_test "p ds.dec32 < d32" " = 0"
 328 gdb_test "p d64 > ds.dec64" " = 0"
 329 gdb_test "p ds.dec128 > d128 " " = 1"
 330 gdb_test "p d32 < ds.int4" " = 1"
 331 gdb_test "p ds.int4 > d32" " = 1"
 332 gdb_test "p ds.dec32 < ds.int4" " = 0"
 333 gdb_test "p ds.int4 > ds.dec64" " = 0"
 334 gdb_test "p ds.dec128 > ds.int4" " = 1"
 335
 336 # Reject operation with integral larger than 32-bits
 337 if { ${sizeof_long} > 4 } {
 338   gdb_test "p d32 + ds.long8" "Conversion of large integer to a decimal floating type is not supported."
 339 }
 340
 341 # Reject operation with DFP and Binary FP
 342 gdb_test "p d64 + ds.float4" "Mixing decimal floating types with other floating types is not allowed."
 343 gdb_test "p ds.double8 + d128" "Mixing decimal floating types with other floating types is not allowed."
 344
 345 # The following tests are intended to verify that gdb can handle "d1=d2"
 346 # and "d1=-d2" correctly.
 347
 348 gdb_test "print ds.dec32=d32" " = 0.1"
 349 gdb_test "print ds.dec64=d64" " = 0.1"
 350 gdb_test "print ds.dec128=d128" " = 0.1"
 351 gdb_test "print ds.dec32 = -d32" " = -0.1"
 352 gdb_test "print ds.dec64 = -d64" " = -0.1"
 353 gdb_test "print ds.dec128 = -d128" " = -0.1"
 354
 355 # Test cast to and from DFP values
 356
 357 gdb_test "print ds.double8 = ds.dec64" " = -0.(0999.*|1000.*)"
 358 gdb_test "print ds.dec64 = ds.float4" " = 3.(0999.*|1000.*)"
 359 gdb_test "print ds.dec128 = -ds.double8" " = 0.(0999.*|1000.*)"
 360 gdb_test "print ds.dec128 = ds.dec32" " = -0.1"
 361 gdb_test "print ds.dec32 = ds.int4" " = 1"
 362 gdb_test "print ds.int4 = 7.3dl" " = 7"