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$$.f90
  16   echo "  i = 1_$k" >> tmp$$.f90
  17   echo "  end" >> tmp$$.f90
  18   if $compile -S tmp$$.f90 > /dev/null 2>&1; then
  19     s=`expr 8 \* $k`
  20     largest="$k"
  21
  22     if [ $s -eq 128 ]; then
  23       prefix="__"
  24     else
  25       prefix=""
  26     fi
  27
  28     if [ "$smallest" = "" ]; then
  29         smallest="$k"
  30     fi
  31
  32     echo "typedef ${prefix}int${s}_t GFC_INTEGER_${k};"
  33     echo "typedef ${prefix}uint${s}_t GFC_UINTEGER_${k};"
  34     echo "typedef GFC_INTEGER_${k} GFC_LOGICAL_${k};"
  35     echo "#define HAVE_GFC_LOGICAL_${k}"
  36     echo "#define HAVE_GFC_INTEGER_${k}"
  37     echo ""
  38   fi
  39   rm -f tmp$$.*
  40 done
  41
  42 echo "#define GFC_INTEGER_LARGEST GFC_INTEGER_${largest}"
  43 echo "#define GFC_UINTEGER_LARGEST GFC_UINTEGER_${largest}"
  44 echo "#define GFC_DEFAULT_CHAR ${smallest}"
  45 echo ""
  46
  47
  48 for k in $possible_real_kinds; do
  49   echo "  real (kind=$k) :: x" > tmp$$.f90
  50   echo "  x = 1.0_$k" >> tmp$$.f90
  51   echo "  end" >> tmp$$.f90
  52   if $compile -S tmp$$.f90 > /dev/null 2>&1; then
  53     case $k in
  54       4) ctype="float" ; suffix="f" ;;
  55       8) ctype="double" ; suffix="" ;;
  56       10) ctype="long double" ; suffix="l" ;;
  57       16) ctype="long double" ; suffix="l" ;;
  58       *) echo "$0: Unknown type" >&2 ; exit 1 ;;
  59     esac
  60
  61     # Check for the value of HUGE
  62     echo "print *, huge(0._$k) ; end" > tmq$$.f90
  63     huge=`$compile -S -fdump-parse-tree tmq$$.f90 | grep TRANSFER \
  64                 | sed 's/ *TRANSFER *//' | sed 's/_.*//'`
  65     rm -f tmq$$.*
  66
  67     # Check for the value of DIGITS
  68     echo "print *, digits(0._$k) ; end" > tmq$$.f90
  69     digits=`$compile -S -fdump-parse-tree tmq$$.f90 | grep TRANSFER \
  70                 | sed 's/ *TRANSFER *//'`
  71     rm -f tmq$$.*
  72
  73     # Check for the value of RADIX
  74     echo "print *, radix(0._$k) ; end" > tmq$$.f90
  75     radix=`$compile -S -fdump-parse-tree tmq$$.f90 | grep TRANSFER \
  76                 | sed 's/ *TRANSFER *//'`
  77     rm -f tmq$$.*
  78
  79     # Output the information we've gathered
  80     echo "typedef ${ctype} GFC_REAL_${k};"
  81     echo "typedef complex ${ctype} GFC_COMPLEX_${k};"
  82     echo "#define HAVE_GFC_REAL_${k}"
  83     echo "#define HAVE_GFC_COMPLEX_${k}"
  84     echo "#define GFC_REAL_${k}_HUGE ${huge}${suffix}"
  85     echo "#define GFC_REAL_${k}_DIGITS ${digits}"
  86     echo "#define GFC_REAL_${k}_RADIX ${radix}"
  87     echo ""
  88   fi
  89   rm -f tmp$$.*
  90 done
  91
  92 exit 0