libgfortran/mk-kinds-h.sh

   1 #!/bin/sh
   2 LC_ALL=C
   3 export LC_ALL
   4
   5 if test "$#" -ne 4; then
   6   echo "Usage $0 int_kinds real_kinds compile use_iec_60559"
   7   exit 1
   8 fi
   9
  10 # Possible kinds must be listed in ascending order
  11 possible_integer_kinds="$1"
  12 possible_real_kinds="$2"
  13 compile="$3"
  14 use_iec_60559="$4"
  15
  16 largest=""
  17 smallest=""
  18 for k in $possible_integer_kinds; do
  19   echo "  integer (kind=$k) :: i" > tmp$$.f90
  20   echo "  i = 1_$k" >> tmp$$.f90
  21   echo "  end" >> tmp$$.f90
  22   if $compile -S tmp$$.f90 > /dev/null 2>&1; then
  23     s=`expr 8 \* $k`
  24     largest="$k"
  25
  26     if [ $s -eq 128 ]; then
  27       prefix="__"
  28     else
  29       prefix=""
  30     fi
  31
  32     if [ "$smallest" = "" ]; then
  33         smallest="$k"
  34     fi
  35
  36     echo "typedef ${prefix}int${s}_t GFC_INTEGER_${k};"
  37     echo "typedef ${prefix}uint${s}_t GFC_UINTEGER_${k};"
  38     echo "typedef GFC_INTEGER_${k} GFC_LOGICAL_${k};"
  39     echo "#define HAVE_GFC_LOGICAL_${k}"
  40     echo "#define HAVE_GFC_INTEGER_${k}"
  41     echo "#define HAVE_GFC_UINTEGER_${k}"
  42     echo ""
  43   fi
  44   rm -f tmp$$.*
  45 done
  46
  47 echo "#define GFC_INTEGER_LARGEST GFC_INTEGER_${largest}"
  48 echo "#define GFC_UINTEGER_LARGEST GFC_UINTEGER_${largest}"
  49 echo "#define GFC_DEFAULT_CHAR ${smallest}"
  50 echo ""
  51
  52
  53 # Get the kind value for long double, so we may disambiguate it
  54 # from _Float128.
  55 echo "use iso_c_binding; print *, c_long_double ; end" > tmq$$.f90
  56 long_double_kind=`$compile -S -fdump-parse-tree tmq$$.f90 | grep TRANSFER \
  57                         | sed 's/ *TRANSFER *//'`
  58 rm -f tmq$$.*
  59
  60
  61 for k in $possible_real_kinds; do
  62   echo "  real (kind=$k) :: x" > tmp$$.f90
  63   echo "  x = 1.0_$k" >> tmp$$.f90
  64   echo "  end" >> tmp$$.f90
  65   if $compile -S tmp$$.f90 > /dev/null 2>&1; then
  66     case $k in
  67       4) ctype="float" ; cplxtype="complex float" ; suffix="f" ;;
  68       8) ctype="double" ; cplxtype="complex double" ; suffix="" ;;
  69       # If we have a REAL(KIND=10), it is always long double
  70       10) ctype="long double" ; cplxtype="complex long double" ; suffix="l" ;;
  71       # If we have a REAL(KIND=16), it is either long double or _Float128
  72       16) if [ $long_double_kind -ne 16 ]; then
  73             ctype="_Float128"
  74             cplxtype="_Complex _Float128"
  75             echo "#define GFC_REAL_16_IS_FLOAT128"
  76             if [ x$use_iec_60559 = xyes ]; then
  77               suffix="f128"
  78               echo "#define GFC_REAL_16_USE_IEC_60559"
  79             else
  80               suffix="q"
  81             fi
  82           else
  83             ctype="long double"
  84             cplxtype="complex long double"
  85             suffix="l"
  86             echo "#define GFC_REAL_16_IS_LONG_DOUBLE"
  87           fi ;;
  88       *) echo "$0: Unknown type" >&2 ; exit 1 ;;
  89     esac
  90
  91     # Check for the value of HUGE
  92     echo "print *, huge(0._$k) ; end" > tmq$$.f90
  93     huge=`$compile -S -fdump-parse-tree tmq$$.f90 | grep TRANSFER \
  94                 | sed 's/ *TRANSFER *//' | sed 's/_.*//'`
  95     rm -f tmq$$.*
  96
  97     # Check for the value of TINY
  98     echo "print *, tiny(0._$k) ; end" > tmq$$.f90
  99     tiny=`$compile -S -fdump-parse-tree tmq$$.f90 | grep TRANSFER \
 100                 | sed 's/ *TRANSFER *//' | sed 's/_.*//'`
 101     rm -f tmq$$.*
 102
 103     # Check for the value of DIGITS
 104     echo "print *, digits(0._$k) ; end" > tmq$$.f90
 105     digits=`$compile -S -fdump-parse-tree tmq$$.f90 | grep TRANSFER \
 106                 | sed 's/ *TRANSFER *//'`
 107     rm -f tmq$$.*
 108
 109     # Check for the value of RADIX
 110     echo "print *, radix(0._$k) ; end" > tmq$$.f90
 111     radix=`$compile -S -fdump-parse-tree tmq$$.f90 | grep TRANSFER \
 112                 | sed 's/ *TRANSFER *//'`
 113     rm -f tmq$$.*
 114
 115     # Output the information we've gathered
 116     echo "typedef ${ctype} GFC_REAL_${k};"
 117     echo "typedef ${cplxtype} GFC_COMPLEX_${k};"
 118     echo "#define HAVE_GFC_REAL_${k}"
 119     echo "#define HAVE_GFC_COMPLEX_${k}"
 120     echo "#define GFC_REAL_${k}_HUGE ${huge}${suffix}"
 121     echo "#define GFC_REAL_${k}_TINY ${tiny}${suffix}"
 122     echo "#define GFC_REAL_${k}_LITERAL_SUFFIX ${suffix}"
 123     if [ "x$suffix" = "x" ]; then
 124       echo "#define GFC_REAL_${k}_LITERAL(X) (X)"
 125     else
 126       echo "#define GFC_REAL_${k}_LITERAL(X) (X ## ${suffix})"
 127     fi
 128     echo "#define GFC_REAL_${k}_DIGITS ${digits}"
 129     echo "#define GFC_REAL_${k}_RADIX ${radix}"
 130     echo ""
 131   fi
 132   rm -f tmp$$.*
 133 done
 134
 135
 136 # After this, we include a header that can override some of the
 137 # autodetected settings.
 138 echo '#include "kinds-override.h"'
 139
 140 exit 0