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ppc-longdouble.exp revision 1.1.1.3 
      1 # Copyright 2016-2023 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 if {![istarget "powerpc*"]} {
     17     verbose "Skipping powerpc long-double floating point tests."
     18     return
     19 }
     20 
     21 standard_testfile
     22 
     23 proc do_test { name {opts {}} } {
     24     global srcdir subdir srcfile binfile
     25     set ccopts {debug quiet}
     26     foreach opt $opts {lappend ccopts "additional_flags=$opt"}
     27     set lines [gdb_compile "${srcdir}/${subdir}/${srcfile}" "$binfile.$name" executable $ccopts]
     28     # We get this warning even with the nowarnings option ...
     29     regsub -all "(^|\n)\[^\n\]*using \[^\n\]* extended precision long double" $lines "" lines
     30     if {$lines != ""} {
     31         return
     32     }
     33 
     34     clean_restart ${binfile}.${name}
     35 
     36     if {![runto_main]} {
     37         return
     38     }
     39 
     40     # Run to the breakpoint at return.
     41     gdb_breakpoint [gdb_get_line_number "return"]
     42     gdb_continue_to_breakpoint "return test: $name"
     43 
     44     # Print the value of ld
     45     gdb_test "print ld" ".* = 1\\.375.*" "the value of ld is 1.375 ($name)"
     46     # Print the value of float128
     47     gdb_test "print float128" ".* = 2\\.375.*" "the value of float128 is 2.375 ($name)"
     48     # Print the value of ibm128
     49     gdb_test "print ibm128" ".* = 3\\.375.*" "the value of ibm128 is 3.375 ($name)"
     50 }
     51 
     52 # Verify that we correctly detect the floating-point format used for
     53 # long double.  Re-run the test with -mabi=ieeelongdouble and mabi=ibmlongdouble
     54 
     55 do_test default { -mfloat128 }
     56 do_test ieee128 { -mfloat128 -mabi=ieeelongdouble }
     57 do_test ibm128 { -mfloat128 -mabi=ibmlongdouble }
     58 
     59