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 ""
  42   fi
  43   rm -f tmp$$.*
  44 done
  45
  46 echo "#define GFC_INTEGER_LARGEST GFC_INTEGER_${largest}"
  47 echo "#define GFC_UINTEGER_LARGEST GFC_UINTEGER_${largest}"
  48 echo "#define GFC_DEFAULT_CHAR ${smallest}"
  49 echo ""
  50
  51
  52 # Get the kind value for long double, so we may disambiguate it
  53 # from _Float128.
  54 echo "use iso_c_binding; print *, c_long_double ; end" > tmq$$.f90
  55 long_double_kind=`$compile -S -fdump-parse-tree tmq$$.f90 | grep TRANSFER \
  56                         | sed 's/ *TRANSFER *//'`
  57 rm -f tmq$$.*
  58
  59
  60 for k in $possible_real_kinds; do
  61   echo "  real (kind=$k) :: x" > tmp$$.f90
  62   echo "  x = 1.0_$k" >> tmp$$.f90
  63   echo "  end" >> tmp$$.f90
  64   if $compile -S tmp$$.f90 > /dev/null 2>&1; then
  65     case $k in
  66       4) ctype="float" ; cplxtype="complex float" ; suffix="f" ;;
  67       8) ctype="double" ; cplxtype="complex double" ; suffix="" ;;
  68       # If we have a REAL(KIND=10), it is always long double
  69       10) ctype="long double" ; cplxtype="complex long double" ; suffix="l" ;;
  70       # If we have a REAL(KIND=16), it is either long double or _Float128
  71       16) if [ $long_double_kind -ne 16 ]; then
  72             ctype="_Float128"
  73             cplxtype="_Complex _Float128"
  74             echo "#define GFC_REAL_16_IS_FLOAT128"
  75             if [ x$use_iec_60559 = xyes ]; then
  76               suffix="f128"
  77               echo "#define GFC_REAL_16_USE_IEC_60559"
  78             else
  79               suffix="q"
  80             fi
  81           else
  82             ctype="long double"
  83             cplxtype="complex long double"
  84             suffix="l"
  85             echo "#define GFC_REAL_16_IS_LONG_DOUBLE"
  86           fi ;;
  87       *) echo "$0: Unknown type" >&2 ; exit 1 ;;
  88     esac
  89
  90     # Check for the value of HUGE
  91     echo "print *, huge(0._$k) ; end" > tmq$$.f90
  92     huge=`$compile -S -fdump-parse-tree tmq$$.f90 | grep TRANSFER \
  93                 | sed 's/ *TRANSFER *//' | sed 's/_.*//'`
  94     rm -f tmq$$.*
  95
  96     # Check for the value of TINY
  97     echo "print *, tiny(0._$k) ; end" > tmq$$.f90
  98     tiny=`$compile -S -fdump-parse-tree tmq$$.f90 | grep TRANSFER \
  99                 | sed 's/ *TRANSFER *//' | sed 's/_.*//'`
 100     rm -f tmq$$.*
 101
 102     # Check for the value of DIGITS
 103     echo "print *, digits(0._$k) ; end" > tmq$$.f90
 104     digits=`$compile -S -fdump-parse-tree tmq$$.f90 | grep TRANSFER \
 105                 | sed 's/ *TRANSFER *//'`
 106     rm -f tmq$$.*
 107
 108     # Check for the value of RADIX
 109     echo "print *, radix(0._$k) ; end" > tmq$$.f90
 110     radix=`$compile -S -fdump-parse-tree tmq$$.f90 | grep TRANSFER \
 111                 | sed 's/ *TRANSFER *//'`
 112     rm -f tmq$$.*
 113
 114     # Output the information we've gathered
 115     echo "typedef ${ctype} GFC_REAL_${k};"
 116     echo "typedef ${cplxtype} GFC_COMPLEX_${k};"
 117     echo "#define HAVE_GFC_REAL_${k}"
 118     echo "#define HAVE_GFC_COMPLEX_${k}"
 119     echo "#define GFC_REAL_${k}_HUGE ${huge}${suffix}"
 120     echo "#define GFC_REAL_${k}_TINY ${tiny}${suffix}"
 121     echo "#define GFC_REAL_${k}_LITERAL_SUFFIX ${suffix}"
 122     if [ "x$suffix" = "x" ]; then
 123       echo "#define GFC_REAL_${k}_LITERAL(X) (X)"
 124     else
 125       echo "#define GFC_REAL_${k}_LITERAL(X) (X ## ${suffix})"
 126     fi
 127     echo "#define GFC_REAL_${k}_DIGITS ${digits}"
 128     echo "#define GFC_REAL_${k}_RADIX ${radix}"
 129     echo ""
 130   fi
 131   rm -f tmp$$.*
 132 done
 133
 134
 135 # After this, we include a header that can override some of the
 136 # autodetected settings.
 137 echo '#include "kinds-override.h"'
 138
 139 exit 0