libgfortran/mk-kinds-h.sh

   1 #!/bin/sh
   2 LC_ALL=C
   3 export LC_ALL
   4
   5 compile="$1"
   6
   7 # Possible types must be listed in ascending order
   8 possible_integer_kinds="1 2 4 8 16"
   9 possible_real_kinds="4 8 10 16"
  10
  11
  12 largest=""
  13 smallest=""
  14 for k in $possible_integer_kinds; do
  15   echo "  integer (kind=$k) :: i" > tmp$$.f90
  16   echo "  end" >> tmp$$.f90
  17   if $compile -S tmp$$.f90 > /dev/null 2>&1; then
  18     s=`expr 8 \* $k`
  19     largest="$k"
  20
  21     if [ $s -eq 128 ]; then
  22       prefix="__"
  23     else
  24       prefix=""
  25     fi
  26
  27     if [ "$smallest" = "" ]; then
  28         smallest="$k"
  29     fi
  30
  31     echo "typedef ${prefix}int${s}_t GFC_INTEGER_${k};"
  32     echo "typedef ${prefix}uint${s}_t GFC_UINTEGER_${k};"
  33     echo "typedef GFC_INTEGER_${k} GFC_LOGICAL_${k};"
  34     echo "#define HAVE_GFC_LOGICAL_${k}"
  35     echo "#define HAVE_GFC_INTEGER_${k}"
  36     echo ""
  37   fi
  38   rm -f tmp$$.*
  39 done
  40
  41 echo "#define GFC_INTEGER_LARGEST GFC_INTEGER_${largest}"
  42 echo "#define GFC_UINTEGER_LARGEST GFC_UINTEGER_${largest}"
  43 echo "#define GFC_DEFAULT_CHAR ${smallest}"
  44 echo ""
  45
  46
  47 for k in $possible_real_kinds; do
  48   echo "  real (kind=$k) :: x" > tmp$$.f90
  49   echo "  end" >> tmp$$.f90
  50   if $compile -S tmp$$.f90 > /dev/null 2>&1; then
  51     case $k in
  52       4) ctype="float" ; suffix="f" ;;
  53       8) ctype="double" ; suffix="" ;;
  54       10) ctype="long double" ; suffix="l" ;;
  55       16) ctype="long double" ; suffix="l" ;;
  56       *) echo "$0: Unknown type" >&2 ; exit 1 ;;
  57     esac
  58
  59     # Check for the value of HUGE
  60     echo "print *, huge(0._$k) ; end" > tmq$$.f90
  61     huge=`$compile -S -fdump-parse-tree tmq$$.f90 | grep TRANSFER \
  62                 | sed 's/ *TRANSFER *//' | sed 's/_.*//'`
  63     rm -f tmq$$.*
  64
  65     # Check for the value of DIGITS
  66     echo "print *, digits(0._$k) ; end" > tmq$$.f90
  67     digits=`$compile -S -fdump-parse-tree tmq$$.f90 | grep TRANSFER \
  68                 | sed 's/ *TRANSFER *//'`
  69     rm -f tmq$$.*
  70
  71     # Check for the value of RADIX
  72     echo "print *, radix(0._$k) ; end" > tmq$$.f90
  73     radix=`$compile -S -fdump-parse-tree tmq$$.f90 | grep TRANSFER \
  74                 | sed 's/ *TRANSFER *//'`
  75     rm -f tmq$$.*
  76
  77     # Output the information we've gathered
  78     echo "typedef ${ctype} GFC_REAL_${k};"
  79     echo "typedef complex ${ctype} GFC_COMPLEX_${k};"
  80     echo "#define HAVE_GFC_REAL_${k}"
  81     echo "#define HAVE_GFC_COMPLEX_${k}"
  82     echo "#define GFC_REAL_${k}_HUGE ${huge}${suffix}"
  83     echo "#define GFC_REAL_${k}_DIGITS ${digits}"
  84     echo "#define GFC_REAL_${k}_RADIX ${radix}"
  85     echo ""
  86   fi
  87   rm -f tmp$$.*
  88 done
  89
  90 exit 0